CN209486368U - Optical Imaging Modules and Devices - Google Patents

Abstract

The utility model discloses an optical imaging module and equipment, wherein, this optical imaging module contains a circuit component and a lens component. The circuit element comprises a carrier plate, a circuit substrate and an image sensing element; the circuit substrate is arranged on the carrier plate and is provided with a through hole and a plurality of circuit contacts; the image sensing element is arranged on the carrier plate and positioned in the through hole and provided with a sensing surface and a plurality of image contacts, and the image contacts are connected with the corresponding circuit contacts through the signal conduction element. The lens element comprises a fixed base, a movable base and a lens group; the fixed base is provided with a focusing hole; the fixed base is arranged on the carrier plate or the circuit substrate; the movable base is arranged in the focusing hole of the fixed base. The lens group comprises at least two lenses with refractive power and is arranged in a containing hole of the movable base, so that light can pass through the lens group and is projected to the sensing surface of the image sensing element.

Description

Optical Imaging Modules and Devices

technical field

The utility model relates to an optical imaging module, in particular to an optical imaging module applied to electronic products and capable of miniaturization.

Background technique

In recent years, with the rise of portable electronic products with photography functions, the demand for optical systems has increased day by day. The photosensitive element of the general optical system is nothing more than two types of photosensitive coupling device (Charge Coupled Device; CCD) or complementary metal oxide semiconductor element (Complementary Metal-Oxide Semiconductor Sensor; CMOSSensor), and with the progress of semiconductor process technology, making The pixel size of the photosensitive element is reduced, and the optical system is gradually developing towards a high-pixel direction, so the requirements for image quality are also increasing.

The optical system traditionally mounted on portable devices, due to the continuous development of portable devices in the direction of pixel enhancement, and the increasing demand of end consumers for large apertures, such as low-light and night shooting functions, the size of the existing optical imaging module and The image quality can no longer meet the higher-level photography requirements.

Therefore, how to effectively achieve a miniaturized structure while further improving the imaging quality has become a very important issue.

Utility model content

The aspect of the embodiment of the present invention is aimed at an optical imaging module, which can use the design of the structural size and cooperate with the refractive power of two or more lenses, the combination of the convex surface and the concave surface (the convex surface or the concave surface in the utility model refers to each lens in principle) The description of the geometric shape changes at different heights from the object side or the image side to the optical axis), thereby achieving the purpose of miniaturization, and at the same time effectively increasing the amount of light entering the optical imaging module and increasing the viewing angle of the optical imaging lens. In this way, it is convenient The optical imaging module can have a certain relative illuminance and improve the total pixels and quality of imaging, and then can be applied to electronic products with small or narrow borders.

The terms and codes of the mechanism element parameters related to the embodiment of the present utility model are listed in detail as follows, as a reference for subsequent descriptions:

First, take FIG. 1A as an example to describe the terminology of the used mechanism elements. The optical imaging module mainly includes a circuit element and a lens element. The circuit element may include a carrier board CB, a circuit substrate EB and an image sensing element S, and in the present utility model, the circuit substrate EB and the image sensing element S are fixed on the carrier board CB by packaging .

The lens element may include a fixed base FB1 , a movable base MB1 and a lens group L . The fixed base FB1 is mainly made of metal (such as aluminum, copper, silver, gold, etc.), or plastics such as polycarbonate (PC), liquid crystal plastic (LCP) and other opaque materials, and has a focus hole The fixing base FB1 is hollow through two ends of the fixing base FB1 , and the fixing base FB1 is disposed on the circuit board. In addition, the outer peripheral edge of the fixed base FB1 and the maximum value of the minimum side length on the plane perpendicular to the optical axis of the lens group are represented by PhiD; the mobile base MB1 is set in the fixed base FB1 and is located at the The hole is located above the image sensing element S, and can be controlled to move in the focus hole along the central axis direction of the focus hole relative to the fixed base FB1, and the mobile base MB1 has an accommodating hole passing through it. Both ends of the mobile base MB1 are made hollow. More specifically, the mobile base MB1 includes an inner support LH1 and a lens barrel B1. The inner bracket LH1 is arranged in the fixed base FB1 and is located in the focusing hole, and can move relative to the fixed base FB1 in a controlled manner, and the inner bracket LH1 has an inner through hole passing through both ends of the inner bracket LH1. It is hollow; the lens barrel B1 is set in the inner bracket LH1 and is located in the inner through hole, and can be driven by the inner bracket LH1 to move relative to the fixed base FB1, and the lens barrel B1 has the accommodating hole passing through Both ends of the lens barrel B1 make the lens barrel B1 hollow. In addition, the distance from the outer wall of the fixed base FB1 to the wall of the inner through hole of the inner bracket LH1 in the direction perpendicular to the optical axis of the lens group is represented by TH1. The minimum thickness of the lens barrel B1 is represented by TH2.

The lens group L includes at least two lenses with refractive power, and is arranged on the mobile base MB1 and located in the accommodating hole. The terms and codes of lens parameters related to the embodiment of the present utility model are listed as follows, as a reference for subsequent descriptions:

Lens parameters related to length or height

The maximum imaging height of the optical imaging module is represented by HOI; the height of the optical imaging module (that is, the distance on the optical axis from the object side of the first lens to the imaging surface) is represented by HOS; the first lens object side of the optical imaging module to The distance between the last lens image sides is represented by InTL; the distance between the fixed diaphragm (aperture) of the optical imaging module and the imaging surface is represented by InS; the distance between the first lens and the second lens of the optical imaging module is represented by IN12 ( example); the thickness of the first lens of the optical imaging module on the optical axis is represented by TP1 (example).

Material-Dependent Lens Parameters

The dispersion coefficient of the first lens of the optical imaging module is represented by NA1 (example); the refraction law of the first lens is represented by Nd1 (example).

Lens parameters related to viewing angle

The angle of view is represented by AF; half of the angle of view is represented by HAF; the chief ray angle is represented by MRA.

Lens parameters related to entrance and exit pupils

The diameter of the entrance pupil of the optical imaging module is represented by HEP; the maximum effective radius of any surface of a single lens refers to the intersection point (Effective Half Diameter; EHD) of the incident light at the maximum viewing angle of the system passing through the edge of the entrance pupil on the surface of the lens (Effective Half Diameter; EHD). Vertical height from the optical axis. For example, the maximum effective radius on the object side of the first lens is represented by EHD11, and the maximum effective radius on the image side of the first lens is represented by EHD12. The maximum effective radius on the object side of the second lens is represented by EHD21, and the maximum effective radius on the image side of the second lens is represented by EHD22. The representation of the maximum effective radius of any surface of the remaining lenses in the optical imaging module can be deduced by analogy. The maximum effective diameter of the image side of the lens closest to the imaging surface in the optical imaging module is represented by PhiA, which satisfies the conditional formula PhiA=2 times EHD. If the surface is aspherical, the cut-off point of the maximum effective diameter is the aspheric surface cutoff point. The Ineffective Half Diameter (IHD) of any surface of a single lens refers to the cut-off point of the maximum effective radius extending from the same surface in the direction away from the optical axis (if the surface is aspheric, that is, the surface has an aspheric coefficient end point) of the surface segment. The maximum diameter of the image side of the lens closest to the imaging surface in the optical imaging module is represented by PhiB, which satisfies the conditional formula PhiB=2 times (maximum effective radius EHD+maximum invalid radius IHD)=PhiA+2 times (maximum invalid radius IHD).

The maximum effective diameter of the image side of the lens closest to the imaging surface (i.e., the image space) in the optical imaging module can also be called the optical exit pupil, which is represented by PhiA. If the optical exit pupil is located on the image side of the third lens, it is represented by PhiA3 If the optical exit pupil is on the image side of the fourth lens, it will be represented by PhiA4; if the optical exit pupil is on the fifth lens image side, it will be represented by PhiA5; if the optical exit pupil is on the sixth lens image side, it will be represented by PhiA6. If the optical imaging module For lenses with different numbers of refractive powers, the representation of the optical exit pupil can be deduced by analogy. The pupil dilation ratio of the optical imaging module is represented by PMR, and its satisfying conditional formula is PMR=PhiA/HEP.

Parameters related to lens surface arc length and surface profile

The length of the contour curve of the maximum effective radius of any surface of a single lens refers to the intersection point of the surface of the lens and the optical axis of the optical imaging module to which it belongs, as the starting point, from the starting point along the surface contour of the lens to its maximum effective radius Up to the end point of the curve, the arc length of the curve between the aforementioned two points is the length of the contour curve of the maximum effective radius, and is expressed in ARS. For example, the length of the contour curve of the maximum effective radius on the object side of the first lens is represented by ARS11 , and the length of the contour curve of the maximum effective radius on the image side of the first lens is represented by ARS12 . The length of the contour curve of the maximum effective radius on the object side of the second lens is represented by ARS21 , and the length of the contour curve of the maximum effective radius on the image side of the second lens is represented by ARS22 . The representation of the length of the contour curve of the maximum effective radius of any surface of the other lenses in the optical imaging module can be deduced by analogy.

The length of the contour curve of the 1/2 entrance pupil diameter (HEP) of any surface of a single lens refers to the intersection point of the surface of the lens and the optical axis of the optical imaging module to which it belongs, as the starting point, along the surface of the lens from the starting point The contour reaches the coordinate point on the surface that is 1/2 the vertical height of the entrance pupil diameter from the optical axis, and the arc length of the curve between the aforementioned two points is the contour curve length of 1/2 the entrance pupil diameter (HEP), and is represented by ARE. For example, the contour curve length of 1/2 entrance pupil diameter (HEP) on the object side of the first lens is represented by ARE11, and the contour curve length of 1/2 entrance pupil diameter (HEP) on the image side of the first lens is represented by ARE12. The contour curve length of 1/2 entrance pupil diameter (HEP) on the object side of the second lens is represented by ARE21, and the contour curve length of 1/2 entrance pupil diameter (HEP) on the image side of the second lens is represented by ARE22. The representation of the length of the contour curve of the 1/2 entrance pupil diameter (HEP) of any surface of the other lenses in the optical imaging module can be deduced by analogy.

Parameters related to lens surface depth

From the intersection point of the object side of the sixth lens on the optical axis to the end point of the maximum effective radius of the object side of the sixth lens, the distance between the above two points horizontal to the optical axis is represented by InRS61 (maximum effective radius depth); the image side of the sixth lens From the intersection point on the optical axis to the end point of the maximum effective radius on the image side of the sixth lens, the distance horizontal to the optical axis between the above two points is represented by InRS62 (maximum effective radius depth). For the expression of the depth (sinking amount) of the maximum effective radius of the object side or image side of other lenses, compare with the above.

Parameters Related to Lens Surface Type

The critical point C refers to the point on the surface of a specific lens that is tangent to a tangent plane perpendicular to the optical axis, except for the intersection point with the optical axis. For example, the vertical distance between the critical point C51 on the object side of the fifth lens and the optical axis is HVT51 (example), the vertical distance between the critical point C52 on the image side of the fifth lens and the optical axis is HVT52 (example), and the sixth lens object The vertical distance between the critical point C61 on the side surface and the optical axis is HVT61 (example), and the vertical distance between the critical point C62 on the image side of the sixth lens and the optical axis is HVT62 (example). The expression of the critical point on the object side or image side of other lenses and the vertical distance from the optical axis is compared with the above.

The inflection point closest to the optical axis on the object side of the seventh lens is IF711, and the sinking amount of this point is SGI711 (example). The horizontal displacement distance between inflection points parallel to the optical axis, and the vertical distance between the IF711 point and the optical axis is HIF711 (example). The inflection point closest to the optical axis on the image side of the seventh lens is IF721, and the sinking amount of this point is SGI721 (example). The horizontal displacement distance between inflection points parallel to the optical axis, and the vertical distance between the IF721 point and the optical axis is HIF721 (example).

The inflection point of the second closest to the optical axis on the object side of the seventh lens is IF712, and the sinking amount of this point is SGI712 (example). The horizontal displacement distance parallel to the optical axis between the inflection points of the optical axis, and the vertical distance between the point and the optical axis of IF712 is HIF712 (example). The inflection point of the second closest to the optical axis on the seventh lens image side is IF722, and the sinking amount of this point is SGI722 (example). SGI722 is the intersection point of the seventh lens image side on the optical axis to the seventh lens image side second closest The horizontal displacement distance parallel to the optical axis between the inflection points of the optical axis, and the vertical distance between the point and the optical axis of IF722 is HIF722 (example).

The inflection point of the third approaching the optical axis on the object side of the seventh lens is IF713, the sinking amount of this point is SGI713 (example), SGI713 is the intersection point of the object side of the seventh lens on the optical axis to the third approaching The horizontal displacement distance parallel to the optical axis between the inflection points of the optical axis, and the vertical distance between the point and the optical axis of IF713 is HIF713 (example). The inflection point of the third approach to the optical axis on the image side of the seventh lens is IF723, and the sinking amount of this point is SGI723 (example). The horizontal displacement distance parallel to the optical axis between the inflection points of the optical axis, and the vertical distance between the point and the optical axis of IF723 is HIF723 (example).

The inflection point of the fourth near the optical axis on the object side of the seventh lens is IF714, and the sinking amount of this point is SGI714 (example). The horizontal displacement distance parallel to the optical axis between the inflection points of the optical axis, and the vertical distance between the point and the optical axis of IF714 is HIF714 (example). The inflection point of the fourth closest to the optical axis on the image side of the seventh lens is IF724, and the sinking amount of this point is SGI724 (example). The horizontal displacement distance parallel to the optical axis between the inflection points of the optical axis, and the vertical distance between the point and the optical axis of IF724 is HIF724 (example).

The expression of the inflection point on the object side or image side of other lenses and its vertical distance from the optical axis or its sinking amount is compared with the above.

Variables related to aberrations

The optical distortion (Optical Distortion) of the optical imaging module is represented by ODT; its TV distortion (TVDistortion) is represented by TDT, and can be further defined to describe the degree of aberration shift between 50% and 100% of the imaging field; spherical aberration shift The amount is expressed in DFS; the coma aberration offset is expressed in DFC.

The utility model provides an optical imaging module, the object side or image side of the sixth lens can be provided with an inflection point, which can effectively adjust the incident angle of each field of view on the sixth lens, and correct for optical distortion and TV distortion . In addition, the surface of the sixth lens can have a better optical path adjustment capability to improve imaging quality.

According to the utility model, an optical imaging module is provided, which includes a circuit element and a lens element. Wherein, the circuit element includes a carrier plate, a circuit substrate and an image sensing element; the circuit substrate is arranged on the carrier plate; the circuit substrate has a through hole penetrating the circuit substrate, and the circuit substrate has A plurality of circuit contacts; the image sensing element is arranged on the carrier board and located in the through hole of the circuit substrate; the image sensing element has a sensing surface and a plurality of image contacts, and the plurality of image contacts respectively pass through A signal conducting element is electrically connected to the corresponding circuit contact. The lens element includes a fixed base, a movable base and a lens group; the fixed base is made of opaque material, and has a focusing hole passing through both ends of the fixed base so that the fixed base is hollow , and the fixed base is arranged on the carrier board or the circuit substrate, so that the image sensing element faces the focusing hole; above the image sensing element, and can be controlled to move in the focus hole along the central axis direction of the focus hole relative to the fixed base, and the mobile base has an accommodating hole passing through both ends of the mobile base so that The mobile base is hollow; the lens group includes at least two lenses with refractive power, and is arranged on the mobile base and located in the accommodating hole; in addition, the imaging surface of the lens group can follow the mobile base The movement is adjusted to be located on the sensing surface, and the optical axis of the lens group overlaps with the central normal of the sensing surface, so that light can pass through the lens group in the accommodating hole and project to the sensing surface. In addition, the optical imaging module further satisfies the following conditions: 1.0≤f/HEP≤10.0; 0deg<HAF≤150deg; 0mm<PhiD≤18mm; 0<PhiA/PhiD≤0.99; and 0.9≤2(ARE/HEP)≤2.0 . Among them, f is the focal length of the lens group; HEP is the entrance pupil diameter of the lens group; HAF is half of the maximum viewing angle of the lens group; PhiD is the outer periphery of the fixed base and is perpendicular to the light of the lens group The maximum value of the minimum side length on the plane of the axis; PhiA is the maximum effective diameter of the lens surface of the lens group closest to the imaging surface; ARE is the intersection point of any lens surface of any lens in the lens group and the optical axis The starting point and the end point at the vertical height of 1/2 the diameter of the entrance pupil from the optical axis are the length of the contour curve obtained along the contour of the lens surface.

Wherein, the optical imaging module further satisfies the following conditions: 0.9≤ARS/EHD≤2.0; wherein, ARS starts from the intersection of any lens surface of any lens in the lens group with the optical axis, and takes the maximum The effective radius is the end point, the length of the contour curve obtained along the contour of the lens surface; EHD is the maximum effective radius of any surface of any lens in the lens group.

Among them, the optical imaging module satisfies the following conditions: PLTA≤100μm; PSTA≤100μm; NLTA≤100μm; NSTA≤100μm; SLTA≤100μm; SSTA≤100μm; and │TDT│<250%; The maximum imaging height on the imaging surface perpendicular to the optical axis; PLTA is the lateral aberration of the longest operating wavelength of visible light of the positive meridian plane light fan of the optical imaging module passing through the edge of the entrance pupil and incident on the imaging surface at 0.7HOI ; PSTA is the shortest operating wavelength of visible light of the positive meridian plane light fan of the optical imaging module, which passes through the entrance pupil edge and is incident on the lateral aberration at 0.7HOI on the imaging surface; NLTA is the negative meridian plane of the optical imaging module The longest operating wavelength of visible light of the optical fan passes through the edge of the entrance pupil and is incident on the imaging plane at 0.7HOI; NSTA is the shortest operating wavelength of visible light of the negative meridian plane of the optical imaging module passing through the entrance pupil Lateral aberration at the edge and incident at 0.7HOI on the imaging plane; SLTA is the lateral aberration at which the longest operating wavelength of visible light of the sagittal plane light fan of the optical imaging module passes through the edge of the entrance pupil and is incident at 0.7HOI on the imaging plane Aberration; SSTA is the lateral aberration of the visible light shortest working wavelength of the sagittal plane light fan of the optical imaging module passing through the edge of the entrance pupil and incident on the imaging surface at 0.7HOI; TDT is the optical imaging module at the time of imaging TV distortion.

Wherein, the lens group includes four lenses with refractive power, which are a first lens, a second lens, a third lens and a fourth lens in sequence from the object side to the image side, and the lens group meets the following conditions : 0.1≤InTL/HOS≤0.95; where, HOS is the distance from the object side of the first lens to the imaging plane on the optical axis; InTL is the distance from the object side of the first lens to the image side of the fourth lens on the optical axis distance on the axis.

Wherein, the lens group includes five lenses with refractive power, which are a first lens, a second lens, a third lens, a fourth lens and a fifth lens in sequence from the object side to the image side, and the The lens group satisfies the following conditions: 0.1≤InTL/HOS≤0.95; wherein, HOS is the distance from the object side of the first lens to the imaging surface on the optical axis; InTL is the distance from the object side of the first lens to the fifth lens The distance between the image side and the optical axis.

Wherein, the lens group includes six lenses with refractive power, which are a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a first lens in sequence from the object side to the image side. Six lenses, and the lens group meets the following conditions:

0.1≤InTL/HOS≤0.95; where, HOS is the distance from the object side of the first lens to the imaging plane on the optical axis; InTL is the distance from the object side of the first lens to the image side of the sixth lens on the optical axis on the distance.

Wherein, the lens group includes seven lenses with refractive power, which are sequentially a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a first lens from the object side to the image side. Six lenses and a seventh lens, and the lens group satisfies the following conditions: 0.1≤InTL/HOS≤0.95; wherein, HOS is the distance from the object side of the first lens to the imaging surface on the optical axis; InT is the second The distance on the optical axis from the object side of a lens to the image side of the seventh lens.

Wherein, the optical imaging module further satisfies the following conditions: MTFQ0≥0.2; MTFQ3≥0.01; and MTFQ7≥0.01; among them, HOI is defined as the maximum imaging height perpendicular to the optical axis of the imaging surface; MTFQ0 is the visible light on the imaging surface MTFQ3 is the modulation conversion contrast transfer ratio when the optical axis above is at the spatial frequency of 110cycles/mm; MTFQ3 is the modulation conversion contrast transfer ratio of visible light on the imaging plane when the 0.3HOI is at the spatial frequency of 110cycles/mm; MTFQ7 is the visible light on the imaging plane The modulation conversion versus transfer ratio of the 0.7 HOI at the spatial frequency of 110 cycles/mm.

Wherein, the optical imaging module further includes an aperture, and the aperture satisfies the following formula: 0.2≤InS/HOS≤1.1; wherein, InS is the distance from the aperture to the imaging plane on the optical axis; HOS is the farthest distance from the lens group The distance from the lens surface of the imaging plane to the imaging plane on the optical axis.

Wherein, the mobile base includes an inner bracket and a lens barrel; the inner bracket is arranged in the fixed base and is located in the focusing hole, and can be controlled to move relative to the fixed base, and the inner bracket has a It is hollow through the inner through holes at both ends of the inner bracket; the lens barrel is arranged in the inner bracket and is located in the inner through hole, and can be driven by the inner bracket to move relative to the fixed base, and the lens barrel has The accommodating hole runs through both ends of the lens barrel to make the lens barrel hollow, and the lens group is arranged in the lens barrel to face the image sensing element.

Wherein, the optical imaging module further satisfies the following conditions: 0mm<TH1+TH2≤1.5mm; wherein, TH1 is the distance from the outer wall of the fixed base to the inner through hole wall of the inner bracket in the direction perpendicular to the optical axis of the lens group ; TH2 is the thickness of the lens barrel.

Wherein, the optical imaging module further satisfies the following conditions: 0<(TH1+TH2)/HOI≤0.95; wherein, TH1 is the outer wall of the fixed base to the inner through hole wall of the inner bracket perpendicular to the optical axis of the lens group The distance in the direction; TH2 is the thickness of the lens barrel; HOI is the maximum imaging height on the imaging plane perpendicular to the optical axis.

Wherein, the outer peripheral wall of the lens barrel has an external thread, and the inner bracket has an inner thread on the wall of the inner through hole to be screwed with the outer thread, so that the lens barrel is arranged in the inner bracket and fixed on the inner bracket. inside the through hole.

Wherein, glue is provided between the lens barrel and the inner bracket and fixed with glue, so that the lens barrel is arranged in the inner bracket and fixed in the inner through hole.

Wherein, the mobile base is made in an integral molding manner.

Wherein, the optical imaging module further includes an infrared filter, which is arranged on the mobile base and above the image sensing element.

Wherein, the optical imaging module further includes an infrared filter, and the infrared filter is arranged in the fixed base and above the image sensing element.

Wherein, the fixed base includes a filter holder, and the filter holder has a filter through hole passing through both ends of the filter holder, and the infrared filter is arranged in the filter holder and located The optical filter is in the through hole, and the optical filter bracket is arranged on the carrier board or the circuit substrate, so that the infrared filter is located above the image sensing element.

Wherein, the fixed base further includes an outer bracket; the outer bracket is fixed on the filter bracket and has an outer through hole passing through both ends of the outer bracket and is hollow, and the outer through hole communicates with the filter The holes jointly constitute the focusing hole; in addition, the mobile base is arranged in the outer bracket and is located in the outer through hole, and the mobile base can be controlled to move relative to the outer bracket in the outer through hole.

Wherein, the mobile base includes an inner bracket and a lens barrel; the inner bracket is arranged in the outer bracket and is located in the outer through hole, and can move relative to the outer bracket in a controlled manner, and the inner bracket has a penetrating The inner through holes at both ends of the inner bracket are hollow; the lens barrel is arranged in the inner bracket and is located in the inner through hole, and can be driven by the inner bracket to move relative to the fixed base, and the lens barrel has the The accommodating hole runs through both ends of the lens barrel to make the lens barrel hollow, and the lens group is arranged in the lens barrel to face the image sensing element.

Wherein, the optical imaging module further satisfies the following conditions: 0mm<TH1+TH2≤1.5mm; wherein, TH1 is the distance from the outer wall of the outer bracket to the inner through hole wall of the inner bracket in the direction perpendicular to the optical axis of the lens group ; TH2 is the thickness of the lens barrel.

Wherein, the optical imaging module further satisfies the following conditions: 0<(TH1+TH2)/HOI≤0.95; wherein, TH1 is the direction perpendicular to the optical axis of the lens group from the outer wall of the outer bracket to the inner through hole wall of the inner bracket The distance above; TH2 is the thickness of the lens barrel; HOI is the maximum imaging height on the imaging surface perpendicular to the optical axis.

Wherein, the outer peripheral wall of the lens barrel has an external thread, and the inner bracket has an inner thread on the wall of the inner through hole to be screwed with the outer thread, so that the lens barrel is arranged in the inner bracket and is located in the inner bracket. in the through hole; in addition, glue is provided between the outer bracket and the filter bracket and fixed with the glue, so that the outer bracket is fixed on the filter bracket.

Wherein, glue is provided between the lens barrel and the inner bracket and fixed with glue, so that the lens barrel is arranged in the inner bracket and is located in the inner through hole; in addition, the outer bracket and the optical filter Adhesive is arranged between the brackets and fixed with the adhesive, so that the outer bracket is fixed on the optical filter bracket.

Wherein, the mobile base is made by one-piece molding; in addition, glue is provided between the outer bracket and the filter bracket and fixed with glue, so that the outer bracket is fixed on the filter bracket .

Wherein, the plurality of signal conducting elements are selected from gold wires, bumps, pins, flexible circuit boards, pogo pins or a group thereof.

Wherein, the optical imaging module is applied to electronic portable equipment, electronic wearable device, electronic monitoring device, electronic information device, electronic communication device, machine vision device, vehicle electronic device and one of the groups formed therefrom.

The length of the contour curve of any surface of a single lens within the maximum effective radius affects the ability of the surface to correct aberrations and the optical path difference between rays of light in each field of view. The longer the length of the contour curve, the better the ability to correct aberrations, but at the same time It will increase the difficulty of production, so it is necessary to control the length of the contour curve of any surface of a single lens within the maximum effective radius range, especially the control of the contour curve length (ARS) within the maximum effective radius range of the surface and the surface The proportional relationship (ARS/TP) between the thickness (TP) of the lens on the optical axis. For example, the length of the contour curve of the maximum effective radius on the object side of the first lens is represented by ARS11, the thickness of the first lens on the optical axis is TP1, the ratio between the two is ARS11/TP1, and the maximum effective radius of the first lens on the image side is The length of the profile curve is represented by ARS12, and the ratio between it and TP1 is ARS12/TP1. The length of the profile curve of the maximum effective radius on the object side of the second lens is represented by ARS21, the thickness of the second lens on the optical axis is TP2, and the ratio between the two is ARS21/TP2, and the profile of the maximum effective radius on the image side of the second lens The length of the curve is represented by ARS22, and the ratio between it and TP2 is ARS22/TP2. The proportional relationship between the length of the contour curve of the maximum effective radius of any surface of the other lenses in the optical imaging module and the thickness (TP) of the lens on the optical axis to which the surface belongs, and so on. In addition, the optical imaging module further satisfies the following condition: 0.9≤ARS/EHD≤2.0.

The longest operating wavelength of visible light of the positive meridian plane light fan of the optical imaging module passes through the edge of the entrance pupil and is incident on the imaging surface at 0.7HOI. The lateral aberration is represented by PLTA; The lateral aberration of the fan with the shortest operating wavelength of visible light passing through the edge of the entrance pupil and incident on the imaging surface at 0.7HOI is represented by PSTA. The longest operating wavelength of visible light of the negative meridian plane light fan of the optical imaging module passes through the edge of the entrance pupil and is incident on the imaging surface at 0.7HOI. The lateral aberration is represented by NLTA; The shortest operating wavelength of visible light of the fan passes through the edge of the entrance pupil and the lateral aberration at 0.7HOI on the imaging surface is represented by NSTA; the longest operating wavelength of visible light of the sagittal plane light fan of the optical imaging module passes through the edge of the entrance pupil and The lateral aberration incident at 0.7HOI on the imaging plane is represented by SLTA; the shortest operating wavelength of visible light of the sagittal light fan of the optical imaging module passes through the edge of the entrance pupil and is incident on the imaging plane at 0.7HOI. Expressed in SSTA. In addition, the optical imaging module satisfies the following conditions: PLTA≤100μm; PSTA≤100μm; NLTA≤100μm; NSTA≤100μm; SLTA≤100μm; SSTA≤100μm; │TDT│<250%; 0.1≤InTL/HOS≤0.95; and 0.2≤InS/HOS≤1.1.

The modulation conversion ratio transfer ratio of visible light on the imaging surface when the optical axis is at a spatial frequency of 110 cycles/mm is represented by MTFQ0; MTFQ3 means; the modulation conversion ratio transfer rate of 0.7 HOI of visible light on the imaging plane at the spatial frequency of 110 cycles/mm is expressed as MTFQ7. In addition, the optical imaging module further satisfies the following conditions: MTFQ0≥0.2; MTFQ3≥0.01; and MTFQ7≥0.01.

The length of the profile curve on any surface of a single lens within the height of the 1/2 entrance pupil diameter (HEP) specifically affects the ability of that surface to correct for aberrations and optical path differences between rays in the field of view shared by each field of view on that surface , the longer the length of the profile curve, the better the ability to correct aberrations, but at the same time it will increase the difficulty of manufacturing. Therefore, it is necessary to control the profile of any surface of a single lens within the height range of 1/2 the entrance pupil diameter (HEP) Curve length, especially the proportional relationship between the contour curve length (ARE) within the height range of 1/2 entrance pupil diameter (HEP) of the surface and the thickness (TP) of the lens on the optical axis to which the surface belongs (ARE /TP). For example, the length of the contour curve of the 1/2 entrance pupil diameter (HEP) height on the object side of the first lens is represented by ARE11, the thickness of the first lens on the optical axis is TP1, and the ratio between the two is ARE11/TP1, the first lens The length of the contour curve of the 1/2 entrance pupil diameter (HEP) height of the mirror image side is represented by ARE12, and the ratio between it and TP1 is ARE12/TP1. The length of the contour curve of the 1/2 entrance pupil diameter (HEP) height on the object side of the second lens is represented by ARE21, the thickness of the second lens on the optical axis is TP2, and the ratio between the two is ARE21/TP2, the second lens image The length of the profile curve at the height of the side 1/2 entrance pupil diameter (HEP) is expressed as ARE22, and the ratio between it and TP2 is ARE22/TP2. The proportional relationship between the length of the contour curve of the 1/2 entrance pupil diameter (HEP) height of any surface of the other lenses in the optical imaging module and the thickness (TP) of the lens on the optical axis to which the surface belongs, expressed in the form And so on.

Description of drawings

The above and other features of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1A shows a schematic diagram of a first structural embodiment of the present utility model;

FIG. 1B shows a schematic diagram of a second structural embodiment of the present invention;

FIG. 1C shows a schematic diagram of a third structural embodiment of the present invention;

FIG. 1D shows a schematic diagram of a fourth structural embodiment of the present invention;

FIG. 1E shows a schematic diagram of a fifth structural embodiment of the present invention;

FIG. 1F shows a schematic diagram of a sixth structural embodiment of the present invention;

FIG. 1G shows a schematic diagram of a seventh structural embodiment of the present invention;

FIG. 1H shows a schematic diagram of an eighth structural embodiment of the present utility model;

FIG. 2A shows a schematic diagram of the first optical embodiment of the present utility model;

2B is a graph showing the spherical aberration, astigmatism and optical distortion of the first optical embodiment of the present utility model in order from left to right;

FIG. 3A shows a schematic diagram of a second optical embodiment of the present invention;

3B is a graph showing the spherical aberration, astigmatism and optical distortion of the second optical embodiment of the present invention in order from left to right;

FIG. 4A shows a schematic diagram of a third optical embodiment of the present invention;

4B is a graph showing the spherical aberration, astigmatism and optical distortion of the third optical embodiment of the present invention in order from left to right;

FIG. 5A shows a schematic diagram of a fourth optical embodiment of the present invention;

FIG. 5B is a graph showing the spherical aberration, astigmatism and optical distortion of the fourth optical embodiment of the present invention in order from left to right;

FIG. 6A is a schematic diagram of a fifth optical embodiment of the present invention;

6B is a graph showing the spherical aberration, astigmatism and optical distortion of the fifth optical embodiment of the present invention in order from left to right;

FIG. 7A shows a schematic diagram of a sixth optical embodiment of the present invention;

7B is a graph showing the spherical aberration, astigmatism and optical distortion of the sixth optical embodiment of the present invention in order from left to right;

FIG. 8A is a schematic diagram of the optical imaging module of the present invention used in a mobile communication device;

FIG. 8B is a schematic diagram of the optical imaging module of the present invention used in a mobile information device;

FIG. 8C is a schematic diagram of the optical imaging module of the present invention used in a smart watch;

FIG. 8D is a schematic diagram of the optical imaging module of the present invention used in a smart head-mounted device;

FIG. 8E is a schematic diagram of the optical imaging module of the present invention used in a security monitoring device;

FIG. 8F is a schematic diagram of the optical imaging module of the present invention used in a vehicle imaging device.

8G is a schematic diagram of the optical imaging module of the present invention used in an unmanned aircraft device;

FIG. 8H is a schematic diagram of the optical imaging module of the present invention used in an extreme sports imaging device.

Explanation of reference numerals: optical imaging modules: 10, 20, 30, 40, 50, 60, 712, 722, 732, 742, 752, 762

Aperture: 100, 200, 300, 400, 500, 600

First lens: 110, 210, 310, 410, 510, 610

Object side: 112, 212, 312, 412, 512, 612

Like side: 114, 214, 314, 414, 514, 614

Second lens: 120, 220, 320, 420, 520, 620

Object side: 122, 222, 322, 422, 522, 622

Like side: 124, 224, 324, 424, 524, 624

Third lens: 130, 230, 330, 430, 530, 630

Object side: 132, 232, 332, 432, 532, 632

Like side: 134, 234, 334, 434, 534, 634

Fourth lens: 140, 240, 340, 440, 540

Object side: 142, 242, 342, 442, 542

Like side: 144, 244, 344, 444, 544

Fifth lens: 150, 250, 350, 450

Object side: 152, 252, 352, 452

Like side: 154, 254, 354, 454

Sixth lens: 160, 260, 360

Object side: 162, 262, 362

Image side: 164, 264, 364

Seventh lens: 270

Object side: 272

Image side: 274

Infrared filter: IR1, IR2, IR5, 180, 280, 380, 480, 580, 680

Image sensing element S, 192, 292, 392, 492, 590, 690

Carrier CB

Circuit board EB

Through hole EH

Circuit contact EP

Video Contact IP

Signal transduction element SC

Lens group L

Fixed base FB1, FB4, FB5

Mobile base MB1, MB2, MB3, MB5, MB7

Inner stents LH1, LH2, LH6

Inner through holes DH1, DH2, DH6

Lens barrel B1, B2, B6

External through hole UH5

External thread OT2, OT6

Internal thread IT2, IT6

Outer bracket OH5

Filter Holder IRH5, IRH8

Filter through hole IH5

Detailed ways

The main design content of the optical imaging module includes structural implementation design and optical implementation design. The following will first explain the relevant content of the structural embodiment:

Please refer to FIG. 1A , the optical imaging module of the first preferred structural embodiment of the present invention mainly includes a circuit element and a lens element. The circuit element includes an image sensing element S, a carrier board CB, and a circuit substrate EB, the outer periphery of the image sensing element S and the maximum value of the minimum side length on a plane perpendicular to the optical axis is LS, and In this embodiment, the image sensing element S and the circuit board EB are fixed on the carrier board CB by packaging. More specifically, the circuit board EB is arranged on the carrier board CB, and the circuit board EB There is a through hole EH penetrating through the circuit substrate EB, and the circuit substrate EB has a plurality of circuit contacts EP. The image sensing element S is disposed on the carrier board CB and located in the through hole EH of the circuit board EB, the image sensing element S has a sensing surface and a plurality of image contacts IP, and the plurality of image contacts The IPs are respectively electrically connected to the corresponding circuit contacts EP on the circuit substrate EB through a signal conducting element SC, and in this embodiment, each of the signal conducting elements SC is a gold wire. In this way, when the sensing surface of the image sensing element S detects the image light signal and converts it into an electrical signal, the electrical signal can be output to the The circuit contact EP enables the circuit substrate EB to conduct the electrical signal to other external components for subsequent processing.

The lens element includes a fixed base FB1 , a movable base MB1 , a lens group L and an infrared filter IR1 . In this embodiment, the fixing base FB1 is made of plastic material without light transmission, and has a focusing hole passing through both ends of the fixing base FB1 so that the fixing base FB1 is hollow. And the fixing base FB1 is disposed on the carrier board CB, so that the image sensing element S faces the focusing hole. The mobile base MB1 has an accommodating hole passing through two ends of the mobile base MB1 to make the mobile base MB1 hollow, and the accommodating hole is facing the sensing surface of the image sensor S. More specifically, the mobile base MB1 includes an inner bracket LH1 and a lens barrel B1. The inner bracket LH1 is disposed in the fixed base FB1 and is located in the focusing hole, and can be controlled relative to the fixed base. The seat FB1 moves, and the inner bracket LH1 has an inner through hole DH1 that runs through both ends of the inner bracket LH1 and is hollow; the lens barrel B1 is arranged in the inner bracket LH1 and is located in the inner through hole DH1, and can be The inner bracket LH1 is driven to move relative to the fixed base FB1 , and the lens barrel B1 has the accommodating hole passing through both ends of the lens barrel B1 to make the lens barrel B1 hollow.

The fixed base FB1 has a predetermined thickness TH1 (that is, the distance from the outer wall of the fixed base FB1 to the inner through hole wall of the inner bracket LH1 in the direction perpendicular to the optical axis of the lens group L), and the outer circumference of the fixed base FB1 The maximum value of the minimum side length on a plane perpendicular to the optical axis is expressed in PhiD. In addition, the lens barrel B1 has a predetermined thickness TH2 (ie, the minimum thickness) and the maximum diameter of its outer peripheral edge on a plane perpendicular to the optical axis is PhiC. In this embodiment, glue is provided between the lens barrel B1 and the inner bracket LH1 and fixed with glue, so that the lens barrel B1 is set in the inner bracket LH1 and fixed in the inner through hole DH1 Inside.

The lens group L includes at least two lenses with refractive power, and its detailed optical design will be described later. The lens group L is disposed on the lens barrel B1 of the mobile base MB1 and located in the accommodating hole. In addition, the imaging surface of the lens group L can be adjusted to the sensing surface of the image sensing element S as the moving base moves, and the optical axis of the lens group L overlaps with the central normal of the sensing surface, The light can pass through the lens group L in the accommodating hole and be projected onto the sensing surface of the image sensing element S. In addition, the maximum diameter of the image side of the lens closest to the imaging surface of the lens group L is represented by PhiB, and the maximum effective diameter of the lens image side of the lens group L closest to the imaging surface (ie image space) (also known as is the optical exit pupil) is represented by PhiA.

The infrared filter IR1 is fixed in the fixing base FB1 and located above the image sensing element S, so as to filter out redundant infrared rays in the image light passing through the lens group L, so as to improve the imaging quality.

It is worth mentioning that, in order to achieve the above-mentioned effect that the optical axis of the lens group L overlaps with the central normal of the sensing surface of the image sensing element S, the optical imaging module of this embodiment is designed to have an incomplete outer side of the lens barrel B1. Contacting the inner peripheral edge of the inner bracket LH1 leaves a little gap, so that curable glue can be applied between the inner bracket LH1 and the lens barrel B1, and the optical axis of the lens group L and the image sensing element can be adjusted at the same time. The central normals of S are overlapped, and then the curable glue is cured to fix the lens barrel B1 on the inner bracket LH1, which is called active alignment assembly. At present, more sophisticated optical imaging modules or special applications (such as the assembly of multiple lenses) need to use active alignment technology, and the optical imaging module of the present invention can meet this requirement. It is worth mentioning that, compared with the traditional COB (Chip On Board) packaging technology in which the image sensing element is located on the upper surface of the circuit substrate, in this embodiment, since the image sensing element S is located in the through hole EH of the circuit substrate EB, In this way, the back focal length can be increased to achieve the effect of improving high optical quality.

In order to achieve miniaturization and high optical quality, the PhiA of this embodiment satisfies the following conditions: 0 mm<PhiA≤17.4mm, preferably the following conditions: 0mm<PhiA≤13.5mm; PhiC satisfies the following conditions: 0mm< PhiC≤17.7mm, preferably meeting the following conditions: 0mm<PhiC≤14mm; PhiD meeting the following conditions: 0mm<PhiD≤18mm, preferably meeting the following conditions: 0mm<PhiD≤1.5mm; TH1 meeting the following conditions: 0mm<TH1≤5mm, preferably satisfy the following conditions: 0mm<≤TH1≤0.5mm; TH2 satisfy the following conditions: 0mm<TH2≤5mm, preferably satisfy the following conditions: 0mm<TH2≤0.5mm; PhiA/ PhiD satisfies the following conditions: 0 <PhiA/PhiD≤0.99, preferably satisfies the following conditions: 0<PhiA/PhiD≤0.97; TH1+TH2 satisfies the following conditions: 0mm<TH1+TH2≤1.5mm, preferably satisfies The following conditions: 0 mm<TH1+TH2≤1mm; 2 times (TH1+TH2)/PhiA meet the following conditions: 0<2 times (TH1+TH2) /PhiA≤0.95, preferably can meet the following conditions: 0<2 Times (TH1+TH2)/PhiA≤0.5.

In addition to the structure of the above-mentioned optical imaging module, please refer to Figure 1B to Figure 1H, which are the optical imaging modules of the second preferred structural embodiment to the eighth preferred structural embodiment of the present utility model, and their structural design is similar to that of the first preferred structure The optical imaging module of the embodiment has certain differences, but can also achieve the effects of miniaturization and high optical quality.

Please refer to Fig. 1B, it is the optical imaging module of the second preferred structural embodiment of the present utility model, and the similarities with the first preferred structural embodiment will not be repeated, but the difference is that the outer peripheral wall of the lens barrel B2 has The external thread OT2, and the inner bracket LH2 has an internal thread IT2 on the wall of the inner through hole DH2, which is screwed with the outer thread OT2, so as to achieve the effect of fixing the lens barrel B2 in the inner bracket LH2. In addition, the infrared filter IR2 is fixed on the mobile base MB2, for example, fixed in the lens barrel B2 to achieve the purpose of filtering out infrared rays. In addition, the optical imaging module of the second preferred structural embodiment of the present invention also satisfies the conditional expression described in the first structural embodiment, and can also achieve the effects of miniaturization and high optical quality.

Please refer to Fig. 1C, which is the optical imaging module of the third preferred structural embodiment of the present invention, and the similarities with the first preferred structural embodiment will not be repeated, but the difference is that the mobile base MB3 is integrally formed Instead of being divided into lens barrels and inner brackets, it can achieve the effect of reducing the working time of parts manufacturing and assembly.

In addition, the optical imaging module of this embodiment also meets the following conditions: PhiA satisfies the following conditions: 0mm<PhiA≤17.4mm, preferably satisfies the following conditions: 0mm<PhiA≤13.5mm; PhiD satisfies the following conditions: 0mm<PhiD≤ 18mm, preferably meeting the following conditions: 0mm<PhiD≤15mm; PhiA/PhiD meeting the following conditions: 0<PhiA/PhiD≤0.99, preferably meeting the following conditions: 0<PhiA/PhiD≤0.97; TH1+TH2 Satisfy the following conditions: 0mm<TH1+TH2≤1.5mm, preferably meet the following conditions: 0mm<TH1+TH2≤1mm; 2 times (TH1+TH2) /PhiA meet the following conditions: 0<2 times (TH1+TH2 )/PhiA≤0.95, preferably satisfying the following condition: 0<2 times (TH1+TH2)/PhiA≤0.5. From the above, it can be seen that the optical imaging module of the third preferred structural embodiment of the present invention satisfies some of the conditional expressions described in the first structural embodiment, and can also achieve the effects of miniaturization and high imaging quality.

Please refer to Fig. 1D, which is the optical imaging module of the fourth preferred structural embodiment of the present utility model. on substrate EB. In addition, the optical imaging module of the fourth preferred structural embodiment of the present invention also satisfies the conditional formula described in the first structural embodiment, and can also be fixed by glue for active alignment assembly, and then can also The effect of miniaturization and high optical quality is achieved.

Please refer to Fig. 1E, which is the optical imaging module of the fifth preferred structural embodiment of the present invention. A sheet support IRH5 and an outer support OH5. The filter holder IRH5 has a filter through hole IH5 that runs through both ends of the filter holder IRH5, and the filter holder IRH5 is arranged on the carrier board CB, and the infrared filter IR5 is arranged on the filter The bracket IRH5 is located in the through hole IH5 of the filter, so that the infrared filter IR5 is located above the image sensor S. The outer bracket OH5 is fixed on the filter bracket IRH5, the outer bracket OH5 has an outer through hole UH5 that runs through the two ends of the outer bracket OH5 and is hollow, and the outer through hole UH5 is in common with the filter through hole IH5. Constitutes the focus hole. The mobile base MB5 is disposed in the outer bracket OH5 and located in the outer through hole UH5, and the mobile base MB5 can be controlled to move relative to the outer bracket OH5 in the outer through hole UH5. In this embodiment, glue is provided between the outer bracket OH5 and the filter bracket IRH5 and is fixed with glue, so that the outer bracket OH5 is fixed on the filter bracket IRH5. In addition, the optical imaging module of the fifth preferred structural embodiment of the present utility model also satisfies the conditional formula described in the first structural embodiment, and can also be fixed by glue for active alignment assembly, and then can also be The effect of miniaturization and high optical quality is achieved.

Please refer to Fig. 1F, which is the optical imaging module of the sixth preferred structural embodiment of the present utility model. The external thread OT6, and the inner bracket LH6 has an internal thread IT6 on the wall of the inner through hole DH6, which is screwed with the outer thread OT6, so that the lens barrel B6 is arranged in the inner bracket LH6 and fixed in the inner through hole Effects within DH6. In addition, the optical imaging module of the sixth preferred structural embodiment of the present invention also satisfies the conditional formula described in the first structural embodiment, and can also achieve the effects of miniaturization and high optical quality.

Please refer to Fig. 1G, which is the optical imaging module of the seventh preferred structural embodiment of the present invention, and the similarities with the sixth preferred structural embodiment will not be repeated, but the difference is that the mobile base MB7 is integrally formed production.

Please refer to Fig. 1H, which is the optical imaging module of the eighth preferred structural embodiment of the present invention, and the similarities with the fifth preferred structural embodiment will not be repeated, but the difference is that the filter holder IRH8 is arranged on the circuit On the substrate EB, this design can also be applied to the sixth and seventh structural embodiments.

Of course, in practical implementation, the signal conduction element of the present utility model can also use bumps made of conductors, pins, flexible circuit boards, and pogo pins or groups thereof in addition to the aforementioned gold wires. The purpose of transmitting electrical signals.

In addition, in addition to the above-mentioned structural embodiments, the feasible optical embodiments of the lens group L are described below. The optical imaging module of the present invention can be designed using three working wavelengths, namely 486.1nm, 587.5nm, and 656.2nm, among which 587.5nm is the main reference wavelength for extracting technical features. The optical imaging module can also be designed with five working wavelengths, which are 470nm, 510nm, 555nm, 610nm, and 650nm, among which 555nm is the main reference wavelength for extracting technical features.

The ratio of the focal length f of the optical imaging module to the focal length fp of each lens with positive refractive power is PPR, the ratio of the focal length f of the optical imaging module to the focal length fn of each lens with negative refractive power is NPR, and all lenses with positive refractive power The sum of PPR of powerful lenses is ΣPPR, and the sum of NPR of all lenses with negative refractive power is ΣNPR, which helps to control the total refractive power and total length of the optical imaging module when the following conditions are met: 0.5≤ΣPPR/│ΣNPR│≤ 15. Preferably, the following conditions can be met: 1≤ΣPPR/│ΣNPR│≤3.0.

The optical imaging module may further include an image sensing element disposed on the imaging surface. Half of the diagonal length of the effective sensing area of the image sensing element (that is, the imaging height of the optical imaging module or the maximum image height) is HOI, and the distance from the object side of the first lens to the imaging surface on the optical axis is HOS, which The following conditions are satisfied: HOS/HOI≦50; and 0.5≦HOS/f≦150. Preferably, the following conditions may be satisfied: 1≤HOS/HOI≤40; and 1≤HOS/f≤140. In this way, the miniaturization of the optical imaging module can be maintained so that it can be mounted on thin and portable electronic products.

In addition, in the optical imaging module provided by the present invention, at least one aperture can be set as required to reduce stray light and improve image quality.

In the optical imaging module provided by the utility model, the aperture configuration can be a front aperture or a middle aperture, wherein the front aperture means that the aperture is set between the subject and the first lens, and the middle aperture means that the aperture is set on the first lens. Between the lens and the imaging surface. If the aperture is a front aperture, the exit pupil of the optical imaging module and the imaging surface can have a longer distance to accommodate more optical elements, and can increase the efficiency of the image sensing element to receive images; if it is a central aperture, there is It helps to expand the field of view of the system, so that the optical imaging module has the advantage of a wide-angle lens. The distance between the aforementioned aperture and the imaging surface is InS, which satisfies the following condition: 0.1≤InS/HOS≤1.1. In this way, the miniaturization of the optical imaging module and the wide-angle characteristic can be maintained at the same time.

In the optical imaging module provided by the utility model, the distance between the object side of the first lens and the image side of the sixth lens is InTL, and the thickness sum of all lenses with refractive power on the optical axis is ΣTP, thereby, when it satisfies the following Condition: 0.1≤ΣTP/InTL≤0.9, which can take into account the contrast of system imaging and the pass rate of lens manufacturing at the same time, and provide an appropriate back focus to accommodate other components. In addition, if it satisfies the following condition: 0.1≤InTL/HOS≤0.95, the miniaturization of the optical imaging module can be maintained so that it can be mounted on thin, light and portable electronic products.

The longest operating wavelength of visible light of the positive meridian plane light fan of the optical imaging module passes through the edge of the entrance pupil and is incident on the imaging surface at 0.7HOI. The lateral aberration is represented by PLTA; The lateral aberration of the fan with the shortest operating wavelength of visible light passing through the edge of the entrance pupil and incident on the imaging surface at 0.7HOI is represented by PSTA. The longest operating wavelength of visible light of the negative meridian plane light fan of the optical imaging module passes through the edge of the entrance pupil and is incident on the imaging surface at 0.7HOI. The lateral aberration is represented by NLTA; The shortest operating wavelength of visible light of the fan passes through the edge of the entrance pupil and the lateral aberration at 0.7HOI on the imaging surface is represented by NSTA; the longest operating wavelength of visible light of the sagittal plane light fan of the optical imaging module passes through the edge of the entrance pupil and The lateral aberration incident at 0.7HOI on the imaging plane is represented by SLTA; the shortest operating wavelength of visible light of the sagittal light fan of the optical imaging module passes through the edge of the entrance pupil and is incident on the imaging plane at 0.7HOI. Expressed in SSTA. In addition, when it meets the following conditions: PLTA≤100 μm; PSTA≤100 μm; NLTA≤100 μm; NSTA≤100 μm; SLTA≤100 μm; SSTA≤100 μm, it has a better imaging effect.

The curvature radius of the object side of the first lens is R1, and the curvature radius of the image side of the first lens is R2, which satisfy the following conditions: 0.001≤│R1/R2│≤25. In this way, the first lens has an appropriate positive refractive power strength to avoid excessive increase in spherical aberration. Preferably, the following condition can be satisfied: 0.01≦│R1/R2│<12.

The radius of curvature of the object side of the sixth lens is R11, and the radius of curvature of the image side of the sixth lens is R12, which satisfy the following condition: -7<(R11-R12)/(R11+R12)<50. Thereby, it is beneficial to correct the astigmatism generated by the optical imaging module.

The distance between the first lens and the second lens on the optical axis is IN12, which satisfies the following condition: IN12 /f≦60, thereby improving the chromatic aberration of the lens and improving its performance.

The distance between the fifth lens and the sixth lens on the optical axis is IN56, which satisfies the following condition: IN56 /f≤3.0, which helps to improve the chromatic aberration of the lens and improve its performance.

The thicknesses of the first lens and the second lens on the optical axis are respectively TP1 and TP2, which satisfy the following condition: 0.1≦(TP1+IN12)/TP2≦10. In this way, it is helpful to control the sensitivity of optical imaging module manufacturing and improve its performance.

The thicknesses of the fifth lens and the sixth lens on the optical axis are TP5 and TP6 respectively, and the distance between the aforementioned two lenses on the optical axis is IN56, which satisfies the following conditions: 0.1≤(TP6+IN56)/TP5≤15 , helps to control the sensitivity of optical imaging module manufacturing and reduce the overall system height.

The thicknesses of the second lens, the third lens and the fourth lens on the optical axis are TP2, TP3 and TP4 respectively, the distance between the second lens and the third lens on the optical axis is IN23, the third lens and the fourth lens are at The distance on the optical axis is IN45, and the distance between the object side of the first lens and the image side of the sixth lens is InTL, which satisfies the following condition: 0.1≤TP4/(IN34+TP4+IN45)<1. In this way, it is helpful to slightly correct the aberration generated by the incident light traveling process layer by layer and reduce the overall height of the system.

In the optical imaging module provided by the utility model, the vertical distance between the critical point C61 on the object side of the sixth lens and the optical axis is HVT61, the vertical distance between the critical point C62 on the image side of the sixth lens and the optical axis is HVT62, and the sixth lens object The horizontal displacement distance from the intersection point of the side surface on the optical axis to the critical point C61 on the optical axis is SGC61, and the horizontal displacement distance from the intersection point of the sixth lens image on the optical axis to the critical point C62 on the optical axis is SGC62, which can meet The following conditions: 0mm≤HVT61≤3mm; 0mm< HVT62≤6mm; 0≤HVT61/HVT62; 0mm≤︱SGC61︱≤0.5mm; 0mm<︱SGC62︱≤2mm; and 0<︱SGC62︱/(︱SGC62︱+ TP6) ≤ 0.9. Thereby, the aberration of the off-axis field of view can be effectively corrected.

The optical imaging module provided by the utility model satisfies the following conditions: 0.2≤HVT62/HOI≤0.9. Preferably, the following condition can be satisfied: 0.3≦HVT62/HOI≦0.8. Thereby, the aberration correction of the peripheral field of view of the optical imaging module is facilitated.

The optical imaging module provided by the utility model satisfies the following conditions: 0≤HVT62/HOS≤0.5. Preferably, the following condition can be satisfied: 0.2≦HVT62/HOS≦0.45. Thereby, the aberration correction of the peripheral field of view of the optical imaging module is facilitated.

In the optical imaging module provided by the utility model, the horizontal displacement distance parallel to the optical axis between the intersection point of the object side of the sixth lens on the optical axis and the inflection point of the nearest optical axis on the object side of the sixth lens is represented by SGI611, the sixth The horizontal displacement distance parallel to the optical axis between the intersection point of the lens image side on the optical axis and the inflection point of the sixth lens image side closest to the optical axis is expressed in SGI621, which meets the following conditions: 0<SGI611 /(SGI611+TP6) ≤0.9; 0<SGI621/(SGI621+TP6)≤0.9. Preferably, the following conditions can be satisfied: 0.1≤SGI611/(SGI611+TP6)≤0.6; 0.1≤SGI621/(SGI621+TP6)≤0.6.

The horizontal displacement distance parallel to the optical axis between the intersection point of the object side of the sixth lens on the optical axis and the second inflection point close to the optical axis of the object side of the sixth lens is represented by SGI612. The horizontal displacement distance parallel to the optical axis between the intersection point and the second inflection point close to the optical axis on the image side of the sixth lens is expressed in SGI622, which meets the following conditions: 0<SGI612/(SGI612+TP6)≤0.9; 0<SGI622 /(SGI622+TP6)≤0.9. Preferably, the following conditions can be met: 0.1≤SGI612/(SGI612+TP6)≤0.6; 0.1≤SGI622/(SGI622+TP6)≤0.6.

The vertical distance between the inflection point of the nearest optical axis on the object side of the sixth lens and the optical axis is represented by HIF611, the intersection point of the image side of the sixth lens on the optical axis to the inflection point of the nearest optical axis on the image side of the sixth lens and the optical axis The vertical distance between them is represented by HIF621, which satisfies the following conditions: 0.001mm≤│HIF611︱≤5mm; 0.001mm≤│HIF621︱≤5mm. Preferably, the following conditions can be met: 0.1mm≤│HIF611︱≤3.5mm; 1.5mm≤│HIF621︱≤3.5mm.

The vertical distance between the second inflection point on the object side of the sixth lens close to the optical axis and the optical axis is represented by HIF612, and the inflection point from the intersection of the image side of the sixth lens on the optical axis to the second close to the optical axis of the image side of the sixth lens The vertical distance between the point and the optical axis is represented by HIF622, which meets the following conditions: 0.001mm≤│HIF612︱≤5mm; 0.001mm≤│HIF622︱≤5mm. Preferably, the following conditions can be met: 0.1mm≤│HIF622︱≤3.5mm; 0.1mm≤│HIF612︱≤3.5mm.

The vertical distance between the third inflection point on the object side of the sixth lens and the optical axis close to the optical axis is represented by HIF613. The vertical distance between the point and the optical axis is represented by HIF623, which satisfies the following conditions: 0.001mm≤│HIF613︱≤5mm; 0.001mm≤│HIF623︱≤5mm. Preferably, the following conditions can be met: 0.1mm≤│HIF623︱≤3.5mm; 0.1mm≤│HIF613︱≤3.5mm.

The vertical distance between the inflection point on the object side of the sixth lens that is the fourth closest to the optical axis and the optical axis is represented by HIF614, and the inflection point from the intersection point of the image side of the sixth lens on the optical axis to the fourth lens on the image side of the sixth lens that is closest to the optical axis The vertical distance between the point and the optical axis is represented by HIF624, which satisfies the following conditions: 0.001mm≤│HIF614︱≤5mm; 0.001mm≤│HIF624︱≤5mm. Preferably, the following conditions can be met: 0.1mm≤│HIF624︱≤3.5mm; 0.1mm≤│HIF614︱≤3.5mm.

In the optical imaging module provided by the utility model, (TH1+TH2)/HOI satisfies the following conditions: 0<(TH1+TH2)/HOI≤0.95, preferably the following conditions can be satisfied: 0<(TH1+TH2)/HOI ≤0.5; (TH1+TH2)/HOS satisfies the following conditions: 0<(TH1+TH2)/HOS≤0.95, preferably satisfies the following conditions: 0<(TH1+TH2)/HOS≤0.5; 2 times (TH1 +TH2)/PhiA satisfies the following condition: 0<2 times (TH1+TH2)/PhiA≤0.95, preferably satisfies the following condition: 0<2 times (TH1+TH2)/PhiA≤0.5.

An embodiment of the optical imaging module provided by the utility model can help correct the chromatic aberration of the optical imaging module by interlacing the lenses with high dispersion coefficient and low dispersion coefficient.

The equation for the above aspheric surface is:

z=ch2/[1+[1(k+1)c2h2]0.5]+A4h4+A6h6+A8h8+A10h10+A12h12+A14h14+A16h16+A18h18+A20h20+…(1)

Among them, z is the position value at the position of height h along the optical axis with the surface vertex as a reference, k is the cone coefficient, c is the reciprocal of the radius of curvature, and A4, A6, A8, A10, A12, A14, A16 , A18 and A20 are high-order aspheric coefficients.

In the optical imaging module provided by the utility model, the material of the lens can be plastic or glass. When the lens is made of plastic, the production cost and weight can be effectively reduced. In addition, when the material of the lens is glass, the thermal effect can be controlled and the design space for the refractive power configuration of the optical imaging module can be increased. In addition, the object side and the image side of the first lens to the seventh lens in the optical imaging module can be aspherical, which can obtain more control variables. In addition to reducing aberrations, compared with the use of traditional glass lenses, even The number of lenses used can be reduced, so the total height of the optical imaging module of the present invention can be effectively reduced.

In addition, in the optical imaging module provided by the present invention, if the lens surface is convex, it means that the lens surface is convex at the near optical axis in principle; if the lens surface is concave, it means that the lens surface is concave at the near optical axis in principle.

The optical imaging module provided by the utility model can be applied to the optical system of moving focusing according to the requirements, and has the characteristics of excellent aberration correction and good imaging quality, thereby expanding the application level.

The optical imaging module provided by the present invention may further include a driving module as required, and the driving module may be coupled with the mobile base or the plurality of lenses to cause displacement of the plurality of lenses. The aforementioned drive module can be a voice coil motor (VCM), used to drive the lens to focus, or an optical anti-shake element (OIS), used to reduce the frequency of out-of-focus caused by lens vibration during shooting.

The optical imaging module provided by the utility model can further make at least one of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens be a light with a wavelength of less than 500nm according to the requirements. The filtering element can be realized by coating on at least one surface of the specific lens with filtering function or the lens itself is made of a material capable of filtering out short wavelengths.

The imaging surface of the optical imaging module provided by the utility model can be selected as a plane or a curved surface according to the requirements. When the imaging surface is a curved surface (such as a spherical surface with a radius of curvature), it helps to reduce the incident angle required for the focused light on the imaging surface. In addition to helping to achieve the length (TTL) of the miniaturized optical imaging module, it is also helpful for improving Relative illumination also helps.

According to the above-mentioned implementation manners, specific embodiments are proposed below using the first preferred structural embodiment together with the following optical embodiments and described in detail with reference to the drawings. However, in practice, the following optical embodiments can also be applied to other structural embodiments.

First optical embodiment

Please refer to FIG. 2A and FIG. 2B, wherein FIG. 2A shows a schematic diagram of a lens group of an optical imaging module according to the first optical embodiment of the present invention, and FIG. 2B shows the optical imaging of the first optical embodiment in sequence from left to right Curves of spherical aberration, astigmatism and optical distortion of the module. It can be seen from FIG. 2A that the optical imaging module includes a first lens 110, an aperture 100, a second lens 120, a third lens 130, a fourth lens 140, a fifth lens 150, a sixth lens 160, An infrared filter 180 , an imaging surface 190 and an image sensor 192 .

The first lens 110 has negative refractive power and is made of plastic material. The object side 112 is concave, and the image side 114 is concave, both of which are aspherical. The object side 112 has two inflection points. The length of the contour curve of the maximum effective radius on the object side of the first lens is represented by ARS11 , and the length of the contour curve of the maximum effective radius on the image side of the first lens is represented by ARS12 . The contour curve length of 1/2 entrance pupil diameter (HEP) on the object side of the first lens is represented by ARE11, and the contour curve length of 1/2 entrance pupil diameter (HEP) on the image side of the first lens is represented by ARE12. The thickness of the first lens on the optical axis is TP1.

The horizontal displacement distance parallel to the optical axis between the intersection point of the object side 112 of the first lens 110 on the optical axis and the inflection point of the closest optical axis of the object side 112 of the first lens 110 is represented by SGI111, and the image side 114 of the first lens 110 is at The horizontal displacement distance parallel to the optical axis between the intersection point on the optical axis and the inflection point of the first lens 110 image side 114 closest to the optical axis is represented by SGI121, which satisfies the following conditions: SGI111=-0.0031mm;︱SGI111︱/( ︱SGI111︱+TP1)=0.0016.

The horizontal displacement distance parallel to the optical axis between the intersection point of the first lens 110 object side 112 on the optical axis to the second inflection point of the first lens 110 object side 112 close to the optical axis is represented by SGI112, and the image side of the first lens 110 The horizontal displacement distance parallel to the optical axis between the intersection point of 114 on the optical axis and the second inflection point of the image side 114 of the first lens 110 close to the optical axis is represented by SGI122, which satisfies the following conditions: SGI112=1.3178mm;︱SGI112 ︱/(︱SGI112︱+TP1)＝0.4052.

The vertical distance between the inflection point of the nearest optical axis of the object side 112 of the first lens 110 and the optical axis is represented by HIF111, and the intersection point of the first lens 110 image side 114 on the optical axis to the first lens 110 image side 114 of the nearest optical axis The vertical distance between the inflection point and the optical axis is represented by HIF121, which satisfies the following conditions: HIF111=0.5557mm; HIF111/HOI=0.1111.

The vertical distance between the inflection point of the first lens 110 object side 112 second near the optical axis and the optical axis is represented by HIF112, and the intersection point of the first lens 110 image side 114 on the optical axis to the first lens 110 image side 114 second The vertical distance between the inflection point close to the optical axis and the optical axis is represented by HIF122, which satisfies the following conditions: HIF112=5.3732mm; HIF112/HOI=1.0746.

The second lens 120 has positive refractive power and is made of plastic material. The object side 122 is convex, and the image side 124 is convex, both of which are aspherical. The object side 122 has an inflection point. The length of the contour curve of the maximum effective radius on the object side of the second lens is represented by ARS21, and the length of the contour curve of the maximum effective radius on the image side of the second lens is represented by ARS22. The contour curve length of 1/2 entrance pupil diameter (HEP) on the object side of the second lens is represented by ARE21, and the contour curve length of 1/2 entrance pupil diameter (HEP) on the image side of the second lens is represented by ARE22. The thickness of the second lens on the optical axis is TP2.

The horizontal displacement distance parallel to the optical axis between the intersection point of the object side 122 of the second lens 120 on the optical axis to the inflection point of the closest optical axis of the object side 122 of the second lens 120 is represented by SGI211, and the image side 124 of the second lens 120 is at The horizontal displacement distance parallel to the optical axis between the intersection point on the optical axis and the inflection point of the image side 124 of the second lens 120 that is closest to the optical axis is represented by SGI221, which satisfies the following conditions: SGI211=0.1069mm;︱SGI211︱/(︱ SGI211︱+TP2)＝0.0412; SGI221＝0mm;︱SGI221︱/(︱SGI221︱+TP2)＝0.

The vertical distance between the inflection point and the optical axis of the object side 122 of the second lens 120 object side 122 is represented by HIF211. The vertical distance between the inflection point and the optical axis is represented by HIF221, which satisfies the following conditions: HIF211=1.1264mm; HIF211/HOI=0.2253; HIF221=0mm; HIF221/HOI=0.

The third lens 130 has negative refractive power and is made of plastic material. The object side 132 is concave, and the image side 134 is convex, both of which are aspherical. Both the object side 132 and the image side 134 have an inflection point. The length of the contour curve of the maximum effective radius on the object side of the third lens is represented by ARS31, and the length of the contour curve of the maximum effective radius on the image side of the third lens is represented by ARS32. The contour curve length of 1/2 entrance pupil diameter (HEP) on the object side of the third lens is represented by ARE31, and the contour curve length of 1/2 entrance pupil diameter (HEP) on the image side of the third lens is represented by ARE32. The thickness of the third lens on the optical axis is TP3.

The horizontal displacement distance parallel to the optical axis between the intersection point of the object side 132 of the third lens 130 on the optical axis and the inflection point of the closest optical axis of the object side 132 of the third lens 130 is represented by SGI311, and the image side 134 of the third lens 130 is at The horizontal displacement distance parallel to the optical axis between the intersection point on the optical axis and the inflection point of the third lens 130 image side 134 nearest optical axis is represented by SGI321, which satisfies the following conditions: SGI311=-0.3041mm;︱SGI311︱/( ︱SGI311︱+TP3)＝0.4445; SGI321＝-0.1172mm;︱SGI321︱/(︱SGI321︱+TP3)＝0.2357.

The vertical distance between the inflection point and the optical axis of the object side 132 of the third lens 130 object side 132 is represented by HIF311. The vertical distance between the inflection point and the optical axis is represented by HIF321, which satisfies the following conditions: HIF311=1.5907mm; HIF311/HOI=0.3181; HIF321=1.3380mm; HIF321/HOI=0.2676.

The fourth lens 140 has positive refractive power and is made of plastic material. Its object side 142 is a convex surface, its image side 144 is concave, and both are aspherical, and its object side 142 has two inflection points and the image side 144 has a One inflection point. The length of the contour curve of the maximum effective radius on the object side of the fourth lens is represented by ARS41, and the length of the contour curve of the maximum effective radius on the image side of the fourth lens is represented by ARS42. The profile curve length of 1/2 entrance pupil diameter (HEP) on the object side of the fourth lens is represented by ARE41, and the profile curve length of 1/2 entrance pupil diameter (HEP) on the image side of the fourth lens is represented by ARE42. The thickness of the fourth lens on the optical axis is TP4.

The horizontal displacement distance parallel to the optical axis between the intersection point of the object side 142 of the fourth lens 140 on the optical axis and the inflection point of the nearest optical axis of the object side 142 of the fourth lens 140 is represented by SGI411. The image side 144 of the fourth lens 140 is at The horizontal displacement distance parallel to the optical axis between the intersection point on the optical axis and the inflection point of the image side 144 of the fourth lens 140 closest to the optical axis is represented by SGI421, which satisfies the following conditions: SGI411=0.0070mm;︱SGI411︱/(︱ SGI411︱+TP4)＝0.0056; SGI421＝0.0006 mm;︱SGI421︱/(︱SGI421︱+TP4)＝0.0005.

The horizontal displacement distance parallel to the optical axis between the intersection point of the object side 142 of the fourth lens 140 on the optical axis and the second inflection point close to the optical axis of the object side 142 of the fourth lens 140 is represented by SGI412, and the image side of the fourth lens 140 The horizontal displacement distance parallel to the optical axis between the intersection point of 144 on the optical axis and the second inflection point on the image side 144 of the fourth lens 140 close to the optical axis is represented by SGI422, which satisfies the following conditions: SGI412=-0.2078mm;︱ SGI412︱/(︱SGI412︱+TP4)＝0.1439.

The vertical distance between the inflection point of the nearest optical axis of the object side 142 of the fourth lens 140 and the optical axis is represented by HIF411, and the intersection point of the fourth lens 140 image side 144 on the optical axis to the distance between the fourth lens 140 image side 144 nearest optical axis The vertical distance between the inflection point and the optical axis is represented by HIF421, which satisfies the following conditions: HIF411=0.4706mm; HIF411/HOI=0.0941; HIF421=0.1721mm; HIF421/HOI=0.0344.

The vertical distance between the inflection point of the fourth lens 140 object side 142 second near the optical axis and the optical axis is represented by HIF412, and the intersection point of the fourth lens 140 image side 144 on the optical axis to the fourth lens 140 image side 144 second The vertical distance between the inflection point close to the optical axis and the optical axis is represented by HIF422, which satisfies the following conditions: HIF412=2.0421mm; HIF412/HOI=0.4084.

The fifth lens 150 has positive refractive power and is made of plastic material. Its object side 152 is convex, its image side 154 is convex, and both are aspherical. One inflection point. The length of the contour curve of the maximum effective radius on the object side of the fifth lens is represented by ARS51, and the length of the contour curve of the maximum effective radius on the image side of the fifth lens is represented by ARS52. The contour curve length of 1/2 entrance pupil diameter (HEP) on the object side of the fifth lens is represented by ARE51, and the contour curve length of 1/2 entrance pupil diameter (HEP) on the image side of the fifth lens is represented by ARE52. The thickness of the fifth lens on the optical axis is TP5.

The horizontal displacement distance parallel to the optical axis between the intersection point of the object side 152 of the fifth lens 150 on the optical axis and the inflection point of the nearest optical axis of the object side 152 of the fifth lens 150 is represented by SGI511, and the image side 154 of the fifth lens 150 is at The horizontal displacement distance parallel to the optical axis between the intersection point on the optical axis and the inflection point of the image side 154 of the fifth lens 150 closest to the optical axis is represented by SGI521, which satisfies the following conditions: SGI511=0.00364mm;︱SGI511︱/(︱ SGI511︱+TP5)＝0.00338; SGI521＝-0.63365mm;︱SGI521︱/(︱SGI521︱+TP5)＝0.37154.

The horizontal displacement distance parallel to the optical axis between the intersection point of the object side 152 of the fifth lens 150 on the optical axis and the second inflection point close to the optical axis of the object side 152 of the fifth lens 150 is represented by SGI512, and the image side of the fifth lens 150 is The horizontal displacement distance parallel to the optical axis between the intersection point of 154 on the optical axis and the second inflection point on the image side 154 of the fifth lens 150 close to the optical axis is represented by SGI522, which satisfies the following conditions: SGI512=-0.32032mm;︱ SGI512︱/(︱SGI512︱+TP5)＝0.23009.

The horizontal displacement distance parallel to the optical axis between the intersection point of the object side 152 of the fifth lens 150 on the optical axis to the third inflection point of the object side 152 of the fifth lens 150 close to the optical axis is represented by SGI513, and the image side of the fifth lens 150 is The horizontal displacement distance parallel to the optical axis between the intersection point of 154 on the optical axis and the third inflection point on the image side 154 of the fifth lens 150 close to the optical axis is represented by SGI523, which satisfies the following conditions: SGI513=0mm;︱SGI513︱ /(︱SGI513︱+TP5)＝0; SGI523＝0mm;︱SGI523︱/(︱SGI523︱+TP5)＝0.

The horizontal displacement distance parallel to the optical axis between the intersection point of the object side 152 of the fifth lens 150 on the optical axis and the fourth inflection point close to the optical axis of the object side 152 of the fifth lens 150 is represented by SGI514, and the image side of the fifth lens 150 is The horizontal displacement distance parallel to the optical axis between the intersection point of 154 on the optical axis and the fourth inflection point on the image side 154 of the fifth lens 150 close to the optical axis is represented by SGI524, which satisfies the following conditions: SGI514=0mm;︱SGI514︱ /(︱SGI514︱+TP5)＝0; SGI524＝0mm;︱SGI524︱/(︱SGI524︱+TP5)＝0.

The vertical distance between the inflection point of the nearest optical axis on the object side 152 of the fifth lens 150 and the optical axis is represented by HIF511, and the vertical distance between the inflection point of the nearest optical axis on the image side 154 of the fifth lens 150 and the optical axis is represented by HIF521. It satisfies the following conditions: HIF511=0.28212mm; HIF511/HOI=0.05642; HIF521=2.13850mm; HIF521/HOI=0.42770.

The vertical distance between the second inflection point close to the optical axis on the object side 152 of the fifth lens 150 and the optical axis is represented by HIF512, and the vertical distance between the second inflection point close to the optical axis on the image side 154 of the fifth lens 150 Expressed as HIF522, it satisfies the following conditions: HIF512=2.51384mm; HIF512/HOI=0.50277.

The vertical distance between the third inflection point close to the optical axis on the object side 152 of the fifth lens 150 and the optical axis is represented by HIF513, and the vertical distance between the third inflection point close to the optical axis on the image side 154 of the fifth lens 150 Expressed by HIF523, it satisfies the following conditions: HIF513=0mm; HIF513/HOI=0; HIF523=0mm; HIF523/HOI=0.

The vertical distance between the fifth lens 150 object side 152 and the fourth inflection point close to the optical axis and the optical axis is represented by HIF514, and the vertical distance between the fifth lens 150 image side 154 and the fourth inflection point close to the optical axis Expressed by HIF524, it satisfies the following conditions: HIF514=0mm; HIF514/HOI=0; HIF524=0mm; HIF524/HOI=0.

The sixth lens 160 has negative refractive power and is made of plastic material. The object side 162 is concave, and the image side 164 is concave. The object side 162 has two inflection points and the image side 164 has one inflection point. Thereby, the incident angle of each field of view on the sixth lens can be effectively adjusted to improve the aberration. The length of the contour curve of the maximum effective radius on the object side of the sixth lens is represented by ARS61, and the length of the contour curve of the maximum effective radius on the image side of the sixth lens is represented by ARS62. The length of the contour curve of 1/2 entrance pupil diameter (HEP) on the object side of the sixth lens is expressed by ARE61, and the length of the contour curve of 1/2 entrance pupil diameter (HEP) on the image side of the sixth lens is expressed by ARE62. The thickness of the sixth lens on the optical axis is TP6.

The horizontal displacement distance parallel to the optical axis between the intersection point of the object side 162 of the sixth lens 160 on the optical axis and the inflection point of the object side 162 of the sixth lens 160 parallel to the optical axis is represented by SGI611, and the image side 164 of the sixth lens 160 is at The horizontal displacement distance parallel to the optical axis between the intersection point on the optical axis and the inflection point of the nearest optical axis on the image side 164 of the sixth lens 160 is represented by SGI621, which satisfies the following conditions: SGI611=-0.38558mm;︱SGI611︱/( ︱SGI611︱+TP6)＝0.27212; SGI621＝0.12386mm;︱SGI621︱/(︱SGI621︱+TP6)＝0.10722.

The horizontal displacement distance parallel to the optical axis between the intersection point of the object side 162 of the sixth lens 160 on the optical axis and the second inflection point close to the optical axis of the object side 162 of the sixth lens 160 is represented by SGI612, and the image side of the sixth lens 160 is The horizontal displacement distance parallel to the optical axis between the intersection point of 164 on the optical axis and the second inflection point on the image side 164 of the sixth lens 160 close to the optical axis is represented by SGI621, which satisfies the following conditions: SGI612=-0.47400mm;︱ SGI612︱/(︱SGI612︱+TP6)＝0.31488; SGI622︱0 mm;︱SGI622︱/(︱SGI622︱+TP6)＝0.

The vertical distance between the inflection point of the nearest optical axis on the object side 162 of the sixth lens 160 and the optical axis is represented by HIF611, and the vertical distance between the inflection point of the nearest optical axis on the image side 164 of the sixth lens 160 and the optical axis is represented by HIF621. It satisfies the following conditions: HIF611=2.24283mm; HIF611/HOI=0.44857; HIF621=1.07376mm; HIF621/HOI=0.21475.

The vertical distance between the second inflection point close to the optical axis on the object side 162 of the sixth lens 160 and the optical axis is represented by HIF612, and the vertical distance between the second inflection point close to the optical axis on the image side 164 of the sixth lens 160 Expressed as HIF622, it satisfies the following conditions: HIF612=2.48895mm; HIF612/HOI=0.49779.

The vertical distance between the third inflection point close to the optical axis on the object side 162 of the sixth lens 160 and the optical axis is represented by HIF613, and the vertical distance between the third inflection point close to the optical axis on the image side 164 of the sixth lens 160 Expressed by HIF623, it satisfies the following conditions: HIF613=0mm; HIF613/HOI=0; HIF623=0mm; HIF623/HOI=0.

The vertical distance between the inflection point near the optical axis and the fourth inflection point on the object side 162 of the sixth lens 160 is represented by HIF614. Expressed by HIF624, it satisfies the following conditions: HIF614=0mm; HIF614/HOI=0; HIF624=0mm; HIF624/HOI=0.

The infrared filter 180 is made of glass, which is disposed between the sixth lens 160 and the imaging surface 190 and does not affect the focal length of the optical imaging module.

In the optical imaging module of this embodiment, the focal length of the lens group is f, the diameter of the entrance pupil is HEP, half of the maximum viewing angle is HAF, and its values are as follows: f=4.075mm; f/HEP=1.4; and HAF=50.001 degrees and tan(HAF) = 1.1918.

In the lens group of this embodiment, the focal length of the first lens 110 is f1, and the focal length of the sixth lens 160 is f6, which satisfy the following conditions: f1=-7.828mm;︱f/f1│=0.52060; f6=-4.886 ; and │f1│>│f6│.

In the optical imaging module of this embodiment, the focal lengths of the second lens 120 to the fifth lens 150 are f2, f3, f4, and f5 respectively, which satisfy the following conditions: │f2│+│f3│+│f4│+│f5│ =95.50815mm;︱f1│+︱f6│＝12.71352mm and│f2│+│f3│+│f4│+│f5│>︱f1│+︱f6│.

The ratio of the focal length f of the optical imaging module to the focal length fp of each lens with positive refractive power is PPR, and the ratio of the focal length f of the optical imaging module to the focal length fn of each lens with negative refractive power is NPR. In the optical imaging module, the sum of PPR of all lenses with positive refractive power is ΣPPR=f/f2+f/f4+f/f5=1.63290, and the sum of NPR of all lenses with negative refractive power is ΣNPR=│f/f1│ +│f/f3│+│f/f6│=1.51305, ΣPPR/│ΣNPR│=1.07921. At the same time, the following conditions are also satisfied:︱f/f2│＝0.69101;︱f/f3│＝0.15834;︱f/f4│＝0.06883;︱f/f5│＝0.87305;︱f/f6│＝0.83412.

In the optical imaging module of the present embodiment, the distance between the object side 112 of the first lens 110 and the image side 164 of the sixth lens 160 is InTL, the distance between the object side 112 of the first lens 110 and the imaging surface 190 is HOS, and the aperture 100 to The distance between the imaging planes 180 is InS, half of the diagonal length of the effective sensing area of the image sensing element 192 is HOI, and the distance between the sixth lens image side 164 and the imaging plane 190 is BFL, which satisfies the following conditions: InTL+ BFL=HOS; HOS=19.54120 mm; HOI=5.0 mm; HOS/HOI=3.90824; HOS/f=4.7952; InS=11.685 mm; and InS/HOS=0.59794.

In the optical imaging module of this embodiment, the sum of the thicknesses of all lenses with refractive power on the optical axis is ΣTP, which satisfies the following conditions: ΣTP=8.13899 mm; and ΣTP/InTL=0.52477. In this way, the imaging contrast of the system and the pass rate of lens manufacturing can be taken into account at the same time, and an appropriate back focus can be provided to accommodate other components.

In the optical imaging module of this embodiment, the radius of curvature of the object side 112 of the first lens 110 is R1, and the radius of curvature of the image side 114 of the first lens 110 is R2, which satisfy the following condition: │R1/R2│=8.99987. In this way, the first lens 110 has an appropriate positive refractive power to avoid excessive increase of spherical aberration.

In the optical imaging module of the present embodiment, the radius of curvature of the object side 162 of the sixth lens 160 is R11, and the radius of curvature of the image side 164 of the sixth lens 160 is R12, which satisfies the following conditions: (R11-R12)/(R11+R12 ) = 1.27780. Thereby, it is beneficial to correct the astigmatism generated by the optical imaging module.

In the optical imaging module of this embodiment, the sum of the focal lengths of all lenses with positive refractive power is ΣPP, which satisfies the following conditions: ΣPP=f2+f4+f5=69.770mm; and f5/(f2+f4+f5)=0.067 . Thereby, it is helpful to properly distribute the positive refractive power of the single lens to other positive lenses, so as to suppress the occurrence of significant aberrations during the process of incident light.

In the optical imaging module of this embodiment, the sum of the focal lengths of all lenses with negative refractive power is ΣNP, which satisfies the following conditions: ΣNP=f1+f3+f6=-38.451mm; and f6/(f1+f3+f6)= 0.127. Thereby, it is helpful to properly distribute the negative refractive power of the sixth lens 160 to other negative lenses, so as to suppress the occurrence of significant aberrations during the incident light traveling process.

In the optical imaging module of this embodiment, the distance between the first lens 110 and the second lens 120 on the optical axis is IN12, which satisfies the following conditions: IN12=6.418mm; IN12/f=1.57491. In this way, it is helpful to improve the chromatic aberration of the lens and improve its performance.

In the optical imaging module of this embodiment, the distance between the fifth lens 150 and the sixth lens 160 on the optical axis is IN56, which satisfies the following conditions: IN56=0.025mm; IN56/f=0.00613. In this way, it is helpful to improve the chromatic aberration of the lens and improve its performance.

In the optical imaging module of this embodiment, the thicknesses of the first lens 110 and the second lens 120 on the optical axis are TP1 and TP2 respectively, which satisfy the following conditions: TP1=1.934mm; TP2=2.486mm; and (TP1+IN12 )/TP2=3.36005. In this way, it is helpful to control the sensitivity of optical imaging module manufacturing and improve its performance.

In the optical imaging module of this embodiment, the thicknesses of the fifth lens 150 and the sixth lens 160 on the optical axis are TP5 and TP6 respectively, and the distance between the aforementioned two lenses on the optical axis is IN56, which satisfies the following conditions: TP5= 1.072mm; TP6=1.031mm; and (TP6+IN56)/TP5=0.98555. Thereby, it is helpful to control the sensitivity of manufacturing the optical imaging module and reduce the overall height of the system.

In the optical imaging module of this embodiment, the distance between the third lens 130 and the fourth lens 140 on the optical axis is IN34, and the distance between the fourth lens 140 and the fifth lens 150 on the optical axis is IN45, which satisfies the following Conditions: IN34=0.401mm; IN45=0.025mm; and TP4/(IN34+TP4+IN45)=0.74376. In this way, it is helpful to slightly correct the aberration generated by the incident light traveling process layer by layer and reduce the overall height of the system.

In the optical imaging module of the present embodiment, the horizontal displacement distance of the fifth lens 150 object side 152 from the intersection point on the optical axis to the maximum effective radius position of the fifth lens 150 object side 152 on the optical axis is InRS51, and the fifth lens 150 looks like The horizontal displacement distance on the optical axis from the intersection point of the side surface 154 on the optical axis to the maximum effective radius position of the fifth lens 150 image side surface 154 is InRS52, and the thickness of the fifth lens 150 on the optical axis is TP5, which meets the following conditions: InRS51 = -0.34789 mm; InRS52 = -0.88185 mm; │InRS51︱/TP5 = 0.32458 and │InRS52︱/TP5 = 0.82276. Thereby, it is beneficial to the production and molding of the lens, and effectively maintains its miniaturization.

In the optical imaging module of the present embodiment, the vertical distance between the critical point of the object side 152 of the fifth lens 150 and the optical axis is HVT51, and the vertical distance between the critical point of the image side 154 of the fifth lens 150 and the optical axis is HVT52, which satisfies the following Conditions: HVT51 = 0.515349 mm; HVT52 = 0 mm.

In the optical imaging module of the present embodiment, the horizontal displacement distance from the intersection point of the sixth lens 160 object side 162 on the optical axis to the position of the maximum effective radius of the sixth lens 160 object side 162 on the optical axis is InRS61, and the sixth lens 160 images The horizontal displacement distance on the optical axis from the point of intersection of the side 164 on the optical axis to the maximum effective radius position of the sixth lens 160 as the side 164 is InRS62, and the thickness of the sixth lens 160 on the optical axis is TP6, which satisfies the following conditions: InRS61 =-0.58390 mm; InRS62 = 0.41976 mm; │InRS61︱/TP6 = 0.56616 and │InRS62︱/TP6 = 0.40700. Thereby, it is beneficial to the production and molding of the lens, and effectively maintains its miniaturization.

In the optical imaging module of this embodiment, the vertical distance between the critical point of the object side 162 of the sixth lens 160 and the optical axis is HVT61, and the vertical distance between the critical point of the image side 164 of the sixth lens 160 and the optical axis is HVT62, which satisfies the following Conditions: HVT61=0mm; HVT62=0mm.

In the optical imaging module of this embodiment, it satisfies the following condition: HVT51/HOI=0.1031. Thereby, the aberration correction of the peripheral field of view of the optical imaging module is facilitated.

In the optical imaging module of this embodiment, it satisfies the following condition: HVT51/HOS=0.02634. Thereby, the aberration correction of the peripheral field of view of the optical imaging module is facilitated.

In the optical imaging module of this embodiment, the second lens 120, the third lens 130 and the sixth lens 160 have negative refractive power, the dispersion coefficient of the second lens 120 is NA2, the dispersion coefficient of the third lens 130 is NA3, and the sixth lens 130 has a dispersion coefficient of NA3. The dispersion coefficient of the lens 160 is NA6, which satisfies the following condition: NA6/NA2≦1. Thereby, it is helpful to correct the chromatic aberration of the optical imaging module.

In the optical imaging module of this embodiment, the TV distortion of the optical imaging module during imaging is TDT, and the optical distortion during imaging is ODT, which satisfy the following conditions: TDT=2.124%; ODT=5.076%.

In the optical imaging module of the present embodiment, LS is 12mm, PhiA is 2 times EHD62=6.726mm (EHD62: the maximum effective radius of the sixth lens 160 image side 164), PhiC=PhiA+2 times TH2=7.026mm, PhiD= PhiC+2 times (TH1+TH2)=7.426mm, TH1 is 0.2mm, TH2 is 0.15mm, PhiA/PhiD is, TH1+TH2 is 0.35mm, (TH1+TH2)/HOI is 0.035, (TH1+TH2) /HOS was 0.0179, 2 times (TH1+TH2)/PhiA was 0.1041, and (TH1+TH2)/LS was 0.0292.

Then refer to Table 1 and Table 2 below.

Table 2. Aspheric coefficients of the first optical embodiment

According to Table 1 and Table 2, the following values related to the length of the contour curve can be obtained:

Table 1 shows the detailed structural data of the first optical embodiment in FIGS. 1A-1H , where the units of the radius of curvature, thickness, distance and focal length are mm, and surfaces 0-16 represent surfaces from the object side to the image side in sequence. Table 2 shows the aspheric surface data in the first optical embodiment, wherein k represents the conical surface coefficient in the aspheric surface curve equation, and A1-A20 represent the 1st-20th order aspheric surface coefficients of each surface. In addition, the following optical embodiment tables correspond to the schematic diagrams and aberration curves of each optical embodiment, and the definitions of the data in the tables are the same as those in Table 1 and Table 2 of the first optical embodiment, and will not be repeated here. In addition, the definitions of the mechanical component parameters of the following optical embodiments are the same as those of the first optical embodiment.

Second optical embodiment

Please refer to FIG. 3A and FIG. 3B, wherein FIG. 3A shows a schematic diagram of a lens group of an optical imaging module according to the second optical embodiment of the present invention, and FIG. 3B shows the optical imaging of the second optical embodiment in sequence from left to right Curves of spherical aberration, astigmatism and optical distortion of the module. It can be seen from FIG. 3A that the optical imaging module includes an aperture 200, a first lens 210, a second lens 220, a third lens 230, a fourth lens 240, a fifth lens 250, a sixth lens 260 and The seventh lens 270 , the infrared filter 280 , the imaging surface 290 and the image sensor 292 .

The first lens 210 has negative refractive power and is made of plastic material. The object side 212 is convex, and the image side 214 is concave, both of which are aspherical. Both the object side 212 and the image side 214 have an inflection point.

The second lens 220 has negative refractive power and is made of plastic material. The object side 222 is convex, and the image side 224 is concave, both of which are aspherical. Both the object side 222 and the image side 224 have an inflection point.

The third lens 230 has positive refractive power and is made of plastic material. The object side 232 is convex, and the image side 234 is concave, both of which are aspherical. The object side 232 has an inflection point.

The fourth lens 240 has a positive refractive power and is made of plastic material. Its object side 242 is concave, its image side 244 is convex, and both are aspherical. The object side 242 has an inflection point and the image side 244 has two an inflection point.

The fifth lens 250 has positive refractive power and is made of plastic material. The object side 252 is convex, and the image side 254 is concave, both of which are aspherical. Both the object side 252 and the image side 254 have an inflection point.

The sixth lens 260 has a negative refractive power and is made of plastic material. The object side 262 is concave, and the image side 264 is convex, both of which are aspherical. Both the object side 262 and the image side 264 have two inflection points. . In this way, the incident angle of each field of view on the sixth lens 260 can be effectively adjusted to improve the aberration.

The seventh lens 270 has a negative refractive power and is made of plastic. The object side 272 is convex, and the image side 274 is concave. Thereby, it is beneficial to shorten the back focal length to maintain miniaturization. In addition, both the object side 272 and the image side 274 of the seventh lens have an inflection point, which can effectively suppress the incident angle of the off-axis field of view light, and further correct the aberration of the off-axis field of view.

The infrared filter 280 is made of glass, which is disposed between the seventh lens 270 and the imaging surface 290 and does not affect the focal length of the optical imaging module.

Please refer to Table 3 and Table 4 below.

Table 4. Aspheric coefficients of the second optical embodiment

In the second optical embodiment, the curve equation of the aspheric surface is expressed in the form of the first optical embodiment. In addition, the definitions of the parameters in the table below are the same as those in the first optical embodiment, and will not be repeated here.

According to Table 3 and Table 4, the following conditional values can be obtained:

According to Table 3 and Table 4, the following conditional values can be obtained: according to Table 1 and Table 2, the following values related to the length of the contour curve can be obtained:

According to Table 3 and Table 4, the following conditional values can be obtained:

third optical embodiment

Please refer to FIG. 4A and FIG. 4B, wherein FIG. 4A shows a schematic diagram of a lens group of an optical imaging module according to the third optical embodiment of the present invention, and FIG. 4B shows the optical imaging of the third optical embodiment in sequence from left to right Curves of spherical aberration, astigmatism and optical distortion of the module. It can be seen from FIG. 4A that the optical imaging module includes a first lens 310, a second lens 320, a third lens 330, an aperture 300, a fourth lens 340, a fifth lens 350, a sixth lens 360, Infrared filter 380 , imaging surface 390 and image sensor 392 .

The first lens 310 has negative refractive power and is made of glass. The object side 312 is convex, and the image side 314 is concave, both of which are spherical.

The second lens 320 has negative refractive power and is made of glass. The object side 322 is concave, and the image side 324 is convex, both of which are spherical.

The third lens 330 has positive refractive power and is made of plastic material. The object side 332 is convex, and the image side 334 is convex, both of which are aspherical. The image side 334 has an inflection point.

The fourth lens 340 has negative refractive power and is made of plastic material. The object side 342 is concave, and the image side 344 is concave, both of which are aspherical. The image side 344 has an inflection point.

The fifth lens 350 has positive refractive power and is made of plastic material. The object side 352 is convex, and the image side 354 is convex, both of which are aspherical.

The sixth lens 360 has negative refractive power and is made of plastic material. The object side 362 is convex, and the image side 364 is concave, both of which are aspherical. Both the object side 362 and the image side 364 have an inflection point. Thereby, it is beneficial to shorten the back focal length to maintain miniaturization. In addition, the incident angle of off-axis field of view light can be effectively suppressed, and the aberration of the off-axis field of view can be further corrected.

The infrared filter 380 is made of glass, which is disposed between the sixth lens 360 and the imaging surface 390 and does not affect the focal length of the optical imaging module.

Please refer to Table 5 and Table 6 below.

Table 6. Aspheric coefficients of the third optical embodiment

In the third optical embodiment, the curve equation of the aspheric surface is expressed in the form of the first optical embodiment. In addition, the definitions of the parameters in the table below are the same as those in the first optical embodiment, and will not be repeated here.

According to Table 5 and Table 6, the following conditional values can be obtained:

According to Table 5 and Table 6, the following values related to the length of the contour curve can be obtained:

According to Table 5 and Table 6, the following conditional values can be obtained:

Fourth optical embodiment

Please refer to FIG. 5A and FIG. 5B, wherein FIG. 5A shows a schematic diagram of a lens group of an optical imaging module according to the fourth optical embodiment of the present invention, and FIG. 5B shows the optical imaging of the fourth optical embodiment in sequence from left to right. Curves of spherical aberration, astigmatism and optical distortion of the module. It can be seen from FIG. 5A that the optical imaging module sequentially includes a first lens 410, a second lens 420, an aperture 400, a third lens 430, a fourth lens 440, a fifth lens 450, and an infrared filter 480 from the object side to the image side. , an imaging surface 490 and an image sensing element 492 .

The first lens 410 has negative refractive power and is made of glass. The object side 412 is convex, and the image side 414 is concave, both of which are spherical.

The second lens 420 has negative refractive power and is made of plastic material. The object side 422 is concave, and the image side 424 is concave, both of which are aspherical. The object side 422 has an inflection point.

The third lens 430 has positive refractive power and is made of plastic material. The object side 432 is convex, and the image side 434 is convex, both of which are aspherical. The object side 432 has an inflection point.

The fourth lens 440 has positive refractive power and is made of plastic material. The object side 442 is convex and the image side 444 is convex, both of which are aspherical. The object side 442 has an inflection point.

The fifth lens 450 has negative refractive power and is made of plastic material. The object side 452 is concave and the image side 454 is concave, both of which are aspherical. The object side 452 has two inflection points. Thereby, it is beneficial to shorten the back focal length to maintain miniaturization.

The infrared filter 480 is made of glass, which is disposed between the fifth lens 450 and the imaging surface 490 and does not affect the focal length of the optical imaging module.

Please refer to Table 7 and Table 8 below.

Table 8. Aspheric coefficients of the fourth optical embodiment

In the fourth optical embodiment, the curve equation of the aspheric surface is expressed in the form of the first optical embodiment. In addition, the definitions of the parameters in the table below are the same as those in the first optical embodiment, and will not be repeated here.

According to Table 7 and Table 8, the following conditional values can be obtained:

According to Table 7 and Table 8, the following values related to the length of the contour curve can be obtained:

According to Table 7 and Table 8, the following conditional values can be obtained:

Fifth optical embodiment

Please refer to FIG. 6A and FIG. 6B, wherein FIG. 6A shows a schematic diagram of a lens group of an optical imaging module according to the fifth optical embodiment of the present invention, and FIG. 6B shows the optical imaging of the fifth optical embodiment in sequence from left to right Curves of spherical aberration, astigmatism and optical distortion of the module. It can be seen from FIG. 6A that the optical imaging module includes an aperture 500, a first lens 510, a second lens 520, a third lens 530, a fourth lens 540, an infrared filter 570, an imaging surface 580 and Image sensing element 590 .

The first lens 510 has positive refractive power and is made of plastic material. The object side 512 is convex, and the image side 514 is convex, both of which are aspherical. The object side 512 has an inflection point.

The second lens 520 has negative refractive power and is made of plastic material. Its object side 522 is convex, its image side 524 is concave, and both are aspherical. The object side 522 has two inflection points and the image side 524 has One inflection point.

The third lens 530 has positive refractive power and is made of plastic material. Its object side 532 is concave, its image side 534 is convex, and both are aspherical. The object side 532 has three inflection points and the image side 534 has One inflection point.

The fourth lens 540 has negative refractive power and is made of plastic material. Its object side 542 is concave, and its image side 544 is concave, and both are aspherical. The object side 542 has two inflection points and the image side 544 has One inflection point.

The infrared filter 570 is made of glass, which is disposed between the fourth lens 540 and the imaging surface 580 and does not affect the focal length of the optical imaging module.

Please refer to Table 9 and Table 10 below.

Table 10. Aspheric coefficients of the fifth optical embodiment

In the fifth optical embodiment, the curve equation of the aspheric surface is expressed in the form of the first optical embodiment. In addition, the definitions of the parameters in the table below are the same as those in the first optical embodiment, and will not be repeated here.

According to Table 9 and Table 10, the following conditional values can be obtained:

According to Table 9 and Table 10, the following conditional values can be obtained:

According to Table 9 and Table 10, the values related to the length of the contour curve can be obtained:

Sixth optical embodiment

Please refer to FIG. 7A and FIG. 7B, wherein FIG. 7A shows a schematic diagram of a lens group of an optical imaging module according to the sixth optical embodiment of the present invention, and FIG. 7B shows the optical imaging of the sixth optical embodiment in sequence from left to right Curves of spherical aberration, astigmatism and optical distortion of the module. As can be seen from FIG. 7A, the optical imaging module includes a first lens 610, an aperture 600, a second lens 620, a third lens 630, an infrared filter 670, an imaging surface 680, and an image sensing element 690 in order from the object side to the image side. .

The first lens 610 has a positive refractive power and is made of plastic. The object side 612 is convex, and the image side 614 is concave, both of which are aspherical.

The second lens 620 has negative refractive power and is made of plastic material. The object side 622 is concave, and the image side 624 is convex, both of which are aspherical. The image side 624 has an inflection point.

The third lens 630 has a positive refractive power and is made of plastic material. Its object side 632 is convex, its image side 634 is convex, and both are aspherical. The object side 632 has two inflection points and the image side 634 has a One inflection point.

The infrared filter 670 is made of glass, which is disposed between the third lens 630 and the imaging surface 680 and does not affect the focal length of the optical imaging module.

Please refer to Table 11 and Table 12 below.

Table 12. Aspheric coefficients of the sixth optical embodiment

In the sixth optical embodiment, the curve equation of the aspheric surface is expressed in the form of the first optical embodiment. In addition, the definitions of the parameters in the table below are the same as those in the first optical embodiment, and will not be repeated here.

According to Table 11 and Table 12, the following conditional values can be obtained:

According to Table 11 and Table 12, the following conditional values can be obtained:

According to Table 11 and Table 12, the values related to the length of the contour curve can be obtained:

The utility model also provides a device, which is one of the groups consisting of electronic portable devices, electronic wearable devices, electronic monitoring devices, electronic information devices, electronic communication devices, machine vision devices and vehicle electronic devices. The equipment includes any of the above-mentioned optical imaging modules mentioned in the utility model, and any of the above-mentioned optical imaging modules mentioned in the utility model can reduce the required mechanism space and Increase the viewing area of the screen.

Please refer to FIG. 8A, which shows the optical imaging module 712 and the optical imaging module 714 (front lens) of the present invention used in the mobile communication device 71 (Smart Phone), and FIG. 8B shows the optical imaging module 722 of the present invention used in The mobile information device 72 (Notebook), FIG. 8C shows the optical imaging module 732 of the present invention used in a smart watch 73 (Smart Watch), and FIG. 8D shows the optical imaging module 742 of the present invention used in a smart head-mounted device 74 (Smart Hat), Fig. 8E shows that the optical imaging module 752 of the present utility model is used in a security monitoring device 75 (IP Cam), and Fig. 8F shows that the optical imaging module 762 of the present utility model is used in a vehicle image device 76, Fig. 8G is the optical imaging module 772 of the present invention used in the unmanned aircraft device 77 , and FIG. 8H is the optical imaging module 782 of the present invention used in the extreme sports imaging device 78 .

Although the present utility model has been disclosed as above in terms of implementation, it is not intended to limit the present utility model. Anyone skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the scope of protection of the present utility model should be defined by the scope of claims in this case.

Although the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that the present invention as defined by the scope of the claims and their equivalents shall not depart from the present invention. Various changes in form and detail may be made within the spirit and scope of the invention.

Claims (27)

1. An optical imaging module, characterized in that, comprising: A circuit element includes a carrier plate, a circuit substrate and an image sensing element; the circuit substrate is arranged on the carrier plate; the circuit substrate has a through hole penetrating the circuit substrate, and the circuit substrate has multiple a circuit contact; the image sensing element is arranged on the carrier plate and is located in the through hole of the circuit substrate; the image sensing element has a sensing surface and a plurality of image contacts, and the plurality of image contacts respectively pass through a The signal conducting element is electrically connected to the corresponding circuit contact; A lens element includes a fixed base, a movable base and a lens group; the fixed base is made of opaque material, and has a focusing hole that runs through both ends of the fixed base so that the fixed base is Hollow, and the fixed base is arranged on the carrier board or the circuit substrate, so that the image sensing element is facing the focusing hole; the moving base is arranged in the fixed base and is located in the focusing hole above the image sensing element, and can be controlled to move in the focus hole along the central axis of the focus hole relative to the fixed base; The moving base is hollow; the lens group includes at least two lenses with refractive power, and is arranged on the moving base and is located in the accommodating hole; in addition, the imaging surface of the lens group can follow the moving base The position of the sensing surface is adjusted by the movement of the seat, and the optical axis of the lens group overlaps with the central normal of the sensing surface, so that light can pass through the lens group in the accommodating hole and project to the sensing surface; In addition, the optical imaging module satisfies the following conditions: 1.0≤f/HEP≤10.0; 0deg<HAF≤150deg; 0mm<PhiD≤18mm; 0<PhiA/PhiD≤0.99; and 0.9≤2(ARE/HEP)≤2.0 Among them, f is the focal length of the lens group; HEP is the entrance pupil diameter of the lens group; HAF is half of the maximum viewing angle of the lens group; PhiD is the outer periphery of the fixed base and is perpendicular to the light of the lens group The maximum value of the minimum side length on the plane of the axis; PhiA is the maximum effective diameter of the lens surface of the lens group closest to the imaging plane; ARE is the intersection point between any lens surface of any lens in the lens group and the optical axis The length of the contour curve obtained along the contour of the lens surface with the starting point at the vertical height of 1/2 the entrance pupil diameter from the optical axis as the end point. 2. The optical imaging module according to claim 1, wherein the following conditions are further satisfied: 0.9≤ARS/EHD≤2.0; Among them, ARS starts from the intersection point of any lens surface of any lens in the lens group and the optical axis, and ends at the maximum effective radius of the lens surface, along the lens The length of the contour curve obtained from the contour of the surface; EHD is the maximum effective radius of any surface of any lens in the lens group. 3. The optical imaging module according to claim 1, wherein the following conditions are further satisfied: PLTA≤100μm; PSTA≤100μm; NLTA≤100μm; NSTA≤100μm; SLTA≤100μm; SSTA≤100μm; and │TDT│<250%; Among them, HOI is first defined as the maximum imaging height perpendicular to the optical axis on the imaging plane; PLTA is the longest working wavelength of visible light of the positive meridian plane light fan of the optical imaging module passing through the edge of the entrance pupil and incident on the imaging plane Lateral aberration at 0.7HOI; PSTA is the shortest working wavelength of visible light of the positive meridian plane light fan of the optical imaging module passing through the edge of the entrance pupil and incident on the imaging surface at 0.7HOI; NLTA is the optical The longest operating wavelength of visible light of the negative meridian plane light fan of the imaging module passes through the edge of the entrance pupil and is incident on the imaging surface at 0.7HOI; NSTA is the visible light of the negative meridian plane light fan of the optical imaging module The shortest working wavelength passes through the edge of the entrance pupil and is incident on the imaging surface at 0.7HOI; SLTA is the longest working wavelength of visible light of the sagittal plane light fan of the optical imaging module passing through the edge of the entrance pupil and incident on the imaging surface The lateral aberration at 0.7 HOI on the surface; SSTA is the shortest operating wavelength of visible light of the sagittal plane light fan of the optical imaging module passing through the edge of the entrance pupil and incident on the imaging plane at 0.7 HOI; TDT is the optical TV distortion of the imaging module during imaging. 4. The optical imaging module according to claim 1, wherein the lens group comprises four lenses with refractive power, which are sequentially a first lens, a second lens, and a first lens from the object side to the image side. Three lenses and a fourth lens, and the lens group meets the following conditions: 0.1≤InTL/HOS≤0.95; Wherein, HOS is the distance on the optical axis from the object side of the first lens to the imaging plane; InTL is the distance on the optical axis from the object side of the first lens to the image side of the fourth lens. 5. The optical imaging module according to claim 1, wherein the lens group comprises five lenses with refractive power, which are sequentially a first lens, a second lens, and a first lens from the object side to the image side. Three lenses, a fourth lens and a fifth lens, and the lens group meets the following conditions: 0.1≤InTL/HOS≤0.95; Wherein, HOS is the distance on the optical axis from the object side of the first lens to the imaging surface; InTL is the distance on the optical axis from the object side of the first lens to the image side of the fifth lens. 6. The optical imaging module according to claim 1, wherein the lens group comprises six lenses with refractive power, which are sequentially a first lens, a second lens, and a first lens from the object side to the image side. Three lenses, a fourth lens, a fifth lens, and a sixth lens, and the lens group meets the following conditions: 0.1≤InTL/HOS≤0.95; Wherein, HOS is the distance on the optical axis from the object side of the first lens to the imaging surface; InTL is the distance on the optical axis from the object side of the first lens to the image side of the sixth lens. 7. The optical imaging module according to claim 1, wherein the lens group comprises seven lenses with refractive power, which are a first lens, a second lens, and a first lens in sequence from the object side to the image side. Three lenses, a fourth lens, a fifth lens, a sixth lens, and a seventh lens, and the lens group meets the following conditions: 0.1≤InTL/HOS≤0.95; Wherein, HOS is the distance on the optical axis from the object side of the first lens to the imaging plane; InT is the distance on the optical axis from the object side of the first lens to the image side of the seventh lens. 8. The optical imaging module according to claim 1, wherein the following conditions are further satisfied: MTFQ0≥0.2; MTFQ3≥0.01; and MTFQ7≥0.01; Among them, HOI is defined as the maximum imaging height perpendicular to the optical axis on the imaging surface; MTFQ0 is the modulation conversion contrast transfer rate of visible light on the imaging surface when the optical axis is at a spatial frequency of 110 cycles/mm; MTFQ3 is the visible light on the imaging surface. The modulation conversion ratio transfer ratio when 0.3 HOI on the surface is at the spatial frequency of 110 cycles/mm; MTFQ7 is the modulation conversion ratio transfer ratio when the 0.7 HOI on the imaging plane is at the spatial frequency of 110 cycles/mm. 9. The optical imaging module according to claim 1, further comprising an aperture, and the aperture satisfies the following formula: 0.2≤InS/HOS≤1.1; wherein, InS is the optical axis between the aperture and the imaging plane HOS is the distance on the optical axis from the lens surface of the lens group farthest from the imaging plane to the imaging plane. 10. The optical imaging module according to claim 1, wherein the mobile base includes an inner bracket and a lens barrel; the inner bracket is arranged in the fixed base and is located in the focusing hole, and can be subjected to Controlled to move relative to the fixed base, and the inner bracket has an inner through hole passing through both ends of the inner bracket and is hollow; the lens barrel is arranged in the inner bracket and is located in the inner through hole, and can be The bracket is driven to move relative to the fixed base, and the lens barrel has the accommodating hole passing through both ends of the lens barrel to make the lens barrel hollow, and the lens group is arranged in the lens barrel to face the image sensing element. 11. The optical imaging module according to claim 10, further satisfying the following conditions: 0mm<TH1+TH2≤1.5mm; wherein, TH1 is from the outer wall of the fixed base to the wall of the inner through hole of the inner bracket The distance in the direction perpendicular to the optical axis of the lens group; TH2 is the thickness of the lens barrel. 12. The optical imaging module according to claim 10, further satisfying the following condition: 0<(TH1+TH2)/HOI≤0.95; wherein, TH1 is from the outer wall of the fixed base to the inner side of the inner bracket The distance between the through hole wall and the direction perpendicular to the optical axis of the lens group; TH2 is the thickness of the lens barrel; HOI is the maximum imaging height on the imaging plane perpendicular to the optical axis. 13. The optical imaging module according to claim 10, wherein the outer peripheral wall of the lens barrel has an external thread, and the inner bracket has an internal thread on the wall of the inner through hole to be screwed with the external thread , so that the lens barrel is arranged in the inner bracket and fixed in the inner through hole. 14. The optical imaging module according to claim 10, wherein an adhesive is provided between the lens barrel and the inner bracket and fixed with the adhesive, so that the lens barrel is arranged in the inner bracket and fixed in the inner through hole. 15. The optical imaging module according to claim 1, wherein the mobile base is integrally formed. 16. The optical imaging module according to claim 1, further comprising an infrared filter disposed on the mobile base and above the image sensing element. 17. The optical imaging module as claimed in claim 1, further comprising an infrared filter, and the infrared filter is disposed in the fixed base and located above the image sensing element. 18. The optical imaging module according to claim 17, wherein the fixed base comprises a filter holder, and the filter holder has a filter through hole passing through both ends of the filter holder, and The infrared filter is arranged in the filter holder and is located in the through hole of the filter, and the filter holder is arranged on the carrier board or the circuit substrate, so that the infrared filter is located in the image above the sensing element. 19. The optical imaging module according to claim 18, wherein the fixed base further comprises an outer bracket; the outer bracket is fixed on the filter bracket and has an outer through hole passing through both ends of the outer bracket It is hollow, and the outer through hole and the filter through hole jointly constitute the focusing hole; in addition, the mobile base is arranged in the outer bracket and is located in the outer through hole, and the mobile base can be controlled The ground moves relative to the outer bracket in the outer through hole. 20. The optical imaging module according to claim 19, wherein the mobile base comprises an inner bracket and a lens barrel; the inner bracket is arranged in the outer bracket and is located in the outer through hole, and can be subjected to Controlled to move relative to the outer bracket, and the inner bracket has an inner through hole passing through both ends of the inner bracket and is hollow; the lens barrel is arranged in the inner bracket and is located in the inner through hole, and can be moved by the inner bracket Driven to move relative to the fixed base, and the lens barrel has the accommodating hole passing through both ends of the lens barrel to make the lens barrel hollow, and the lens group is arranged in the lens barrel to face the image sensing element. 21. The optical imaging module according to claim 20, further satisfying the following conditions: 0mm<TH1+TH2≤1.5mm; wherein, TH1 is the wall of the inner through hole from the outer wall of the outer bracket to the inner bracket The distance in the direction perpendicular to the optical axis of the lens group; TH2 is the thickness of the lens barrel. 22. The optical imaging module according to claim 20, further satisfying the following condition: 0<(TH1+TH2)/HOI≤0.95; wherein, TH1 is the inner passage from the outer wall of the outer bracket to the inner bracket The distance between the hole wall and the direction perpendicular to the optical axis of the lens group; TH2 is the thickness of the lens barrel; HOI is the maximum imaging height on the imaging plane perpendicular to the optical axis. 23. The optical imaging module according to claim 20, wherein the outer peripheral wall of the lens barrel has an external thread, and the inner bracket has an internal thread on the wall of the inner through hole to be screwed with the external thread , so that the lens barrel is arranged in the inner bracket and is located in the inner through hole; in addition, an adhesive is provided between the outer bracket and the filter bracket and fixed with the adhesive, so that the outer bracket is fixed on the filter holder. 24. The optical imaging module as claimed in claim 20, wherein an adhesive is provided between the lens barrel and the inner bracket and fixed with the adhesive, so that the lens barrel is arranged in the inner bracket and positioned at In the inner through hole; in addition, glue is arranged between the outer bracket and the filter bracket and fixed with the glue, so that the outer bracket is fixed on the filter bracket. 25. The optical imaging module according to claim 19, wherein the mobile base is integrally formed; in addition, an adhesive is provided between the outer bracket and the filter bracket and is combined with the adhesive fixed, so that the outer bracket is fixed on the filter bracket. 26. The optical imaging module as claimed in claim 1, wherein the plurality of signal conducting elements are selected from gold wires, bumps, pins, flexible circuit boards, pogo pins or a group thereof. 27. A device, characterized in that the device is an electronic portable device, an electronic wearable device, an electronic monitoring device, an electronic information device, an electronic communication device, a machine vision device, a vehicle electronic device, and one of the groups formed therefrom, The device comprises the optical imaging module according to any one of claims 1-26.