CN107305290A - Optical mirror slip and its tool - Google Patents
Optical mirror slip and its tool Download PDFInfo
- Publication number
- CN107305290A CN107305290A CN201610257155.2A CN201610257155A CN107305290A CN 107305290 A CN107305290 A CN 107305290A CN 201610257155 A CN201610257155 A CN 201610257155A CN 107305290 A CN107305290 A CN 107305290A
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- lens
- optical
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- strip
- region
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- 230000003287 optical effect Effects 0.000 title claims abstract description 129
- 230000002093 peripheral effect Effects 0.000 claims abstract description 49
- 239000011800 void material Substances 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000000576 coating method Methods 0.000 description 17
- 239000000463 material Substances 0.000 description 16
- 239000011248 coating agent Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 4
- 238000012634 optical imaging Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000007888 film coating Substances 0.000 description 2
- 238000009501 film coating Methods 0.000 description 2
- 239000012788 optical film Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0018—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for preventing ghost images
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Eyeglasses (AREA)
- Lens Barrels (AREA)
Abstract
The present invention discloses a kind of optical mirror slip, and it includes eyeglass and at least an optical layer.Eyeglass has center and the peripheral region around center.An at least optical layer is configured on eyeglass.Each optical layer is located in peripheral region and exposure center, wherein peripheral region have at least one first strip interstice coverage being connected with center, and each optical layer exposes at least one first strip interstice coverage.Invention additionally discloses a kind of tool, it is suitable to the eyeglass that the optical mirror slip is fixed during the optical mirror slip described in making.The optical mirror slip of the present invention can be in the case where maintaining preferable assembly precision, and the optical appearance for peripheral region is improved.
Description
Technical Field
The present invention relates to an optical device and a fixture thereof, and more particularly, to an optical lens and a fixture thereof.
Background
With the increasing specifications of portable electronic products, the optical lens assembly, which is a key component, is also being developed more variously, and the applications are not limited to image taking and video recording, but also environmental monitoring, driving record shooting, and the like.
In order to improve the imaging quality of the optical lens assembly (e.g., improve the stray light problem), it is sometimes necessary to improve the optical performance (e.g., transmittance or reflectance) of a specific region (e.g., the peripheral region) of the optical lens. For example, in the prior art, the edge of the optical lens is often shielded by the light shielding element (i.e. the transmittance of the peripheral region is reduced) to filter the stray light caused by the reflection or refraction of the edge, thereby reducing the negative effect of the stray light on the imaging quality. However, the arrangement of the light shielding element is not easy to maintain a good assembling precision, and also has a problem that the image quality is easily affected by poor assembling. Therefore, it has been eagerly sought by various people in the field to improve the optical performance of a specific area of an optical lens while maintaining a desired assembly accuracy.
Disclosure of Invention
The invention provides an optical lens, which can improve the optical performance of a peripheral zone under the condition of maintaining ideal assembly precision.
The invention provides a jig for manufacturing the optical lens.
An optical lens according to an embodiment of the present invention includes a lens and at least one optical layer. The lens has a central zone and a peripheral zone surrounding the central zone. At least one optical layer is arranged on the lens. Each optical layer is positioned in the peripheral area and exposes the central area, wherein the peripheral area is provided with at least one first strip-shaped clearance area connected with the central area, and each optical layer exposes at least one first strip-shaped clearance area.
In an embodiment of the invention, a point at which each of the first stripe-shaped void regions connects to the central region is defined as a first connecting point, and a straight line passing through the first connecting point in a radial direction from the center of the lens is defined as a first radius line. An included angle between each first strip-shaped gap area and the orthographic projection of the first radius line on a reference plane perpendicular to the optical axis direction of the optical lens is in a range of 30 degrees to 60 degrees.
In an embodiment of the invention, each of the first stripe-shaped void areas is connected between the central area and the peripheral edge of the lens.
In an embodiment of the invention, the peripheral area further has at least one second stripe-shaped void region not connected to the central area, and each optical layer further exposes at least one second stripe-shaped void region.
In an embodiment of the invention, each of the first stripe-shaped void areas is connected between the central area and the peripheral edge of the lens. Each second strip-shaped clearance area is connected with the periphery of the lens.
The jig according to an embodiment of the present invention is suitable for fixing a lens of an optical lens in a process of manufacturing the optical lens. The fixture comprises a carrier plate, a shielding plate and at least one first connecting part. The carrier has at least one opening. The shielding plate is positioned in the opening and shields the central area of the lens. The at least one first connecting portion is connected with the carrier plate and the shielding plate, wherein the at least one first connecting portion supports the peripheral area of the lens and shields the at least one first strip-shaped clearance area.
In an embodiment of the invention, a point at which each of the first connecting portions is connected to the shielding plate is defined as a second connecting point, and a straight line passing through the second connecting point in a radial direction from the center of the shielding plate is defined as a second radius line. A corner between the first connecting portion and an orthogonal projection of the second radius line on a reference plane perpendicular to the optical axis direction of the optical lens is in a range of 30 degrees to 60 degrees.
In an embodiment of the invention, an inner diameter of the carrier is larger than a diameter of the lens.
In an embodiment of the invention, the fixture further includes at least one second connecting portion. The at least one second connecting part is positioned in the opening, is connected with the carrier plate and is not connected with the shielding plate, wherein the at least one second connecting part supports the peripheral area of the lens and defines at least one second strip-shaped gap area which is not connected with the central area in the peripheral area.
Based on the above, the embodiments of the present invention have the following beneficial effects: in the optical lens, since the optical layer is directly formed on the lens, the optical performance of the optical lens in the peripheral area can be improved while maintaining the desired assembly accuracy, compared to the case where the light shielding element is additionally disposed outside the lens. In addition, by properly designing the connecting part (such as the first connecting part or the second connecting part) of the jig for manufacturing the optical lens, the coating rate of at least one optical film can be improved, the process yield of the optical lens can be improved, and the problem that the lens falls off due to vibration in the film coating process can be solved.
In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, embodiments accompanied with figures are described in detail belowAttached to the attached drawingsAs described in detail below.
Drawings
Drawing (A) 1AIs a top view of the fixture of the first embodiment of the present inventionDrawing (A)。
Drawing (A) 1BIs a top view of the optical lens of the first embodiment of the present inventionDrawing (A)。
Drawing (A) 1CIs composed ofDrawing (A) 1AAnd a fixtureDrawing (A) 1BCross-section of the assembled lensDrawing (A)。
Drawing (A) 2AToDrawing (A) 2CAre respectively asDrawing (A) 1BThe first to third cross-sectional views ofDrawing (A)。
Drawing (A) 3AIs a top view of a jig according to a second embodiment of the present inventionDrawing (A)。
Drawing (A) 3BIs a top view of an optical lens of a second embodiment of the present inventionDrawing (A)。
Drawing (A) 3CIs composed ofDrawing (A) 3AAnd a fixtureDrawing (A) 3BCross-section of the assembled lensDrawing (A)。
Drawing (A) 4AIs a top view of a fixture of a third embodiment of the present inventionDrawing (A)。
Drawing (A) 4BIs a top view of an optical lens of a third embodiment of the present inventionDrawing (A)。
Drawing (A) 5AIs a top view of a jig according to a fourth embodiment of the present inventionDrawing (A)。
Drawing (A) 5BIs a top view of an optical lens of a fourth embodiment of the present inventionDrawing (A)。
Drawing (A) 6AIs a top view of a jig according to a fifth embodiment of the present inventionDrawing (A)。
Drawing (A) 6BIs a top view of an optical lens of a fifth embodiment of the present inventionDrawing (A)。
Drawing (A) 7AIs a top view of a fixture of a sixth embodiment of the present inventionDrawing (A)。
Drawing (A) 7BIs a top view of an optical lens of a sixth embodiment of the present inventionDrawing (A)。
Detailed Description
Drawing (A) 1AIs a top view of the fixture of the first embodiment of the present inventionDrawing (A)。Drawing (A) 1BIs a top view of the optical lens of the first embodiment of the present inventionDrawing (A)。Drawing (A) 1CIs composed ofDrawing (A) 1AAnd a fixtureDrawing (A) 1BCross-section of the assembled lensDrawing (A)。Drawing (A) 2AToDrawing (A) 2CAre respectively asDrawing (A) 1BThe first to third cross-sectional views ofDrawing (A). In thatDrawing (A) 1AIn order to facilitate the description of the relative relationship between the jig and the optical lens, the edge of the lens is marked by a thin dotted line, and the boundary between the central area and the peripheral area of the lens is marked by a thick dotted line. The area within the bold dashed line corresponds to the central zone of the lens. The areas outside the thick dashed line and inside the thin dashed line correspond to the peripheral zone of the lens.
Please refer toDrawing (A) 1BOptical lens 100 includes a lens 110 and at least one optical layer 120. The lens 110 has Refractive power (Refractive power), and the lens 110 may be a spherical lens or an aspherical lens. The lens 110 has a central zone a1 and a peripheral zone a2 surrounding the central zone a1 (Drawing (A) 1BThe intersection of the central region a1 and the peripheral region a2 is indicated by a thick solid line). The central region a1 is defined as an optical effective diameter region suitable for light to pass through, and the central region a1 has a diameter that is the clear aperture (clear aperture) of the lens 110 with a diameter tolerance ranging from about 0.2mm to 0.6 mm.
At least one of the optical layers 120 is disposed on the lens 110. Each optical layer 120 is located in the peripheral region a2 and exposes the central region a 1. The material of the optical layer 120 may vary according to different requirements. For example, if the transmittance of the peripheral region a2 is to be reduced, the material of at least one of the optical layers 120 may include TixOyOr CrxOyWherein x and y are each greater than 0, and (x + y) ≦ 1. On the other hand, if the reflectivity of the peripheral region a2 is to be reduced, the optical layer 120 may be a multilayer film. The multilayer film can be formed by alternately stacking at least one high refractive index layer and at least one low refractive index layer. Thus, the reflectivity of the peripheral region a2 can be reduced by satisfying the Destructive interference (Destructive interference) condition, so as to achieve the anti-reflection effect, i.e., the effect of reducing the reflectivity. For example, the material of the high refractive index layer may include TixOyOr CrxOyWherein x and y are each greater than 0, and (x + y) ≦ 1. The material of the low refractive index layer may include silicon dioxide or silicon oxide, but is not limited thereto.
In one embodiment of the present invention, the substrate is,as shown in the figure 2AAs shown, the number of the optical layers 120 can be one, and the optical layers 120 are disposed on one of the surfaces S1, S2 of the lens 110, wherein one of the surfaces S1, S2 is an object side surface, and wherein the other one is an image side surface. Or,as shown in the figure 2BAs shown, the number of the optical layers 120 may be two. Specifically, at least one of the optical layers 120 may include a first optical layer 122 and a second optical layer 124. The first optical layer 122 overlaps the second optical layer 124, and the first optical layer 122 overlaps the second lightThe optical layer 124 is disposed on the opposite surfaces S1, S2 of the lens 110. One of the surfaces S1, S2 is an object side, and the other is an image side. Further, in the above-described case,as shown in the figure 2CAs shown, the first optical layer 122 and the second optical layer 124 can be disposed on the same surface of the lens 110 (Such as a watchFace S1). It should be noted that the number, thickness, material, or relative arrangement of the optical layers 120 may be changed according to design requirements, and is not limited to the above.
The optical layer 120 may have different embodiments according to the jig 10 used to manufacture the optical lens 100.Drawing (A) 1BThe optical lens 100 of (2) is manufactured by coating, for example. In the coating process, the lens 110 of the optical lens 100 is coated byDrawing (A) 1AThe fixture 10 is fixed to form at least one optical layer 120 in the peripheral area a2 of the lens 110.
The fixture 10 may include a carrier 12, a shielding plate 14, and at least one first connecting portion 16. The carrier 12 can be used to support the lens 110, and the material of the carrier is, for example, stainless steel or metal, but not limited thereto. The carrier 12 has at least one opening O.Drawing (A) 1AAn opening O is schematically illustrated, but the present invention is not limited thereto.
The shield plate 14 is positioned in the opening O and shields the central area a1 of the lens 110. In this way, during the coating process, the coating material (e.g., the material of at least one of the optical layers 120) is prevented from forming on the central region a1, and after the coating process is completed, at least one of the optical layers 120 exposes the central region a 1. The material of the shielding plate 14 is, for example, stainless steel or metal, but not limited thereto.
At least one of the first connecting portions 16 connects the carrier 12 and the shielding plate 14, and at least one of the first connecting portions 16 is suitable for supporting the peripheral area a2 of the lens 110, and the material of the peripheral area a2 is, for example, stainless steel or metal, but not limited thereto. In the present embodiment, the carrier 12, the shielding plate 14 and at least one of the first connecting portions 16 can be located on the same horizontal plane(s) ((Such as Drawing (A) 1CShown). However, the carrier 12 and the shielding plate 14 may be located at different levels according to different design requirementsAnd at least one first connecting portion 16 is connected between the plane of the carrier 12 and the plane of the shielding plate 14.
During the coating process, a coating material is formed on the surface S1 of the lens 110 facing the jig 10. In addition to the shielding plate 14 shielding the coating material, at least one of the first connecting portions 16 also shields the coating material, so that in the optical lens 100 formed by the jig 10, at least one of the optical layers 120 exposes the region shielded by at least one of the first connecting portions 16 in addition to the central region a 1. In detail, the peripheral region a2 forms at least one first stripe-shaped void region a21 corresponding to at least one of the first connecting portions 16. At least one of the first stripe-shaped void regions A21 is connected to the central region A1, and at least one of the first stripe-shaped void regions A21 is connected between the central region A1 and the periphery P of the lens 110. At least one of the optical layers 120 also exposes at least one of the first stripe-shaped void regions a 21.
In this embodiment, the number of the first connecting portions 16 is one. A point at which each of the first connecting portions 16 is connected to the shield plate 14 is defined as a second connection point CP2, and a straight line passing through the second connection point CP2 in the radial direction DR from the center C14 of the shield plate 14 is defined as a second radius line r 2. An angle θ 1 between each first connecting portion 16 and an orthogonal projection of the second radius line R2 on a reference plane R1 perpendicular to the optical axis direction DT of the optical lens 100 falls within a range of 30 degrees to 60 degrees.As shown in the figure 1AAs shown, the first connection portion 16 may include a plurality of first sub-connection portions (e.g., first sub-connection portions 16A, 16B) connected in series. The first sub-connection portion 16A is connected between the second connection point CP2 and the first sub-connection portion 16B, and an included angle between the first sub-connection portion 16B and the second radius line r2 is equal to the included angle θ 1, for example.
The number of the first stripe-shaped void areas a21 is also one. The point at which each first strip-like void region a21 connects with the central region a1 is defined as a first connection point CP1, and a line passing through the first connection point CP1 in a radial direction (the radial direction DR of the shield plate 14) from the center CA1 of the optic 110 is defined as a first radius line r 1. An angle θ 2 between each first stripe-shaped void region a21 and an orthogonal projection of the first radius line R1 on the reference plane R2 perpendicular to the optical axis direction DT falls within a range of 30 degrees to 60 degrees. The first stripe-shaped void region a21 may include a plurality of first sub-regions (e.g., first sub-regions a21A and a21B) connected in series, wherein the shape and position of the first sub-region a21A correspond to the first sub-connection portion 16A, and the shape and position of the first sub-region a21B correspond to the first sub-connection portion 16B. The shape correspondence includes the case where the shapes are the same or similar and the sizes are the same or similar. The first sub-region a21A is connected between the first connection point CP1 and the first sub-region a21B, and an included angle between the first sub-region a21B and the first radius line r1 is equal to the included angle θ 2, for example.
With the above-described configuration, at least one of the optical layers 120 has a desirable coverage ratio to cover the peripheral region a2, so as to better improve the stray light problem. It should be noted that, in the case that the inner diameter RI (i.e. the diameter of the opening O) of the carrier 12 is smaller than the diameter R110 of the lens 110, the carrier 12 can also support the edge of the lens 110 during the coating process. Therefore, the stability of the support is improved, and the problem of damage of the first connecting portion 16 due to large stress can be reduced, thereby improving the process yield. In addition, in the coating process, since the edge of the lens 110 is shielded by the carrier 12, the peripheral area a2 of the lens 110 further has an annular gap area a 22. The annular gap area a22 is an area of the peripheral area a2 that is shielded by the carrier 12 during the coating process. At least one of the optical layers 120 also exposes an annular void region a 22. In the optical imaging lens using the optical lens 100, the annular gap a22 can be shielded by other elements (such as a clamping mechanism) of the optical imaging lens, so that the problem of stray light is not caused.
It should be noted that the size of the annular void region A22 varies according to the diameter R110 of the lens 110, and therefore, does not need to be the same as that of the lensDrawing (A) 1BThe drawing is a limit. If the inner diameter RI of the carrier plate 12 is greater than or equal to the diameter R110 of the lens 110, the peripheral zone a2 of the lens 110 may not have the annular clearance zone a22 (see fig. b)Drawing (A) 3B、Drawing (A) 4B、Drawing (A) 5B、Drawing (A) 6BAnddrawing (A) 7BSuch that at least one of the optical layers 120 covers the peripheral region a2 and preferably has a greater area than the annular void region a22The cladding rate and the optical imaging quality are better. In the present embodiment, it is preferred that,as shown in the figure 1CAs shown, the carrier 12 may further have a fixing wall structure 20 laterally defining an opening O to assist in fixing the lens 110, so as to prevent the lens 110 from falling or shifting due to vibration. It should be noted that, the carrier plate 12, the shielding plate 14 and the first connecting portion 16 may be integrally formed, but not limited thereto. In another embodiment, the above components can be manufactured separately and assembled together. In this structure, the above components may be made of the same or different materials.
The following matchingDrawing (A) 3AToDrawing (A) 7BOther embodiments of the optical lens and the jig thereof will be described.Drawing (A) 3AIs a top view of a jig according to a second embodiment of the present inventionDrawing (A)。Drawing (A) 3BIs a top view of an optical lens of a second embodiment of the present inventionDrawing (A)。Drawing (A) 3CIs composed ofDrawing (A) 3AAnd a fixtureDrawing (A) 3BCross-section of the assembled lensDrawing (A)。Drawing (A) 4AIs a top view of a fixture of a third embodiment of the present inventionDrawing (A)。Drawing (A) 4BIs a top view of an optical lens of a third embodiment of the present inventionDrawing (A)。Drawing (A) 5AIs a top view of a jig according to a fourth embodiment of the present inventionDrawing (A)。Drawing (A) 5BIs a top view of an optical lens of a fourth embodiment of the present inventionDrawing (A)。Drawing (A) 6AIs a top view of a jig according to a fifth embodiment of the present inventionDrawing (A)。Drawing (A) 6BIs a top view of an optical lens of a fifth embodiment of the present inventionDrawing (A)。Drawing (A) 7AIs a top view of a fixture of a sixth embodiment of the present inventionDrawing (A)。Drawing (A) 7BIs a top view of an optical lens of a sixth embodiment of the present inventionDrawing (A)。
In the following examples, the description is givenDrawing (A) 3A、Drawing (A) 4A、Drawing (A) 5A、Drawing (A) 6AAnddrawing (A) 7AWhen the jig is used, only the corresponding to the jigDrawing (A) 1AThe main differences of the jig of (1) will be described. Reference may be made to similar or identical elements in various embodiments and associated descriptionsDrawing (A) 1AAnddrawing (A) 1CCorresponding contents are not described in detail below. Further, description will be given ofDrawing (A) 3B、Drawing (A) 4B、Drawing (A) 5B、Drawing (A) 6BAnddrawing (A) 7BIn the case of the optical lens of (1), only for the purpose of the combination thereofDrawing (A) 1BThe main differences of the optical lens of (1) will be explained. Reference may be made to similar or identical elements in various embodiments and associated descriptionsDrawing (A) 1BCorresponding contents are not described in detail below.
Please refer toDrawing (A) 3AAnddrawing (A) 3BIn aDrawing (A) 3AIn the jig 10, the number of the first connecting portions 16 is two, and each of the first connecting portions 16 is in the shape of a straight strip. An orthogonal projection of each first connecting portion 16 on the reference plane R1 extends, for example, in the radial direction DR of the shield plate 14, and an angle θ 3 between orthogonal projections of the first connecting portions 16 on the reference plane R1 is, for example, 180 degrees.
In thatDrawing (A) 3BIn the optical lens 100 of (1), the number of the first stripe-shaped void regions a21 is also two, and each first stripe-shaped void region a21 is a straight stripe shape. An orthogonal projection of each first strip-shaped void region a21 on the reference plane R2 extends, for example, in a radial direction of the central region a1 (the radial direction DR of the shielding plate 14), and an angle θ 4 between orthogonal projections of the first strip-shaped void regions a21 on the reference plane R2 is, for example, 180 degrees.
With the above structure, the fixture 10 can support the lens 110 more stably, and the problem of damage of the first connecting portion 16 due to large stress can be reduced, thereby increasing the process yield.
It should be noted that, in the case that the inner diameter RI of the carrier plate 12 is larger than the diameter R110 of the lens 110, the lens 110 is mainly supported by the first connecting portion 16 (Such as Drawing (A) 3CShown) and peripheral zone a2 of lens 110 does not haveDrawing (A) 1BAnnular void region A22 (shown)Such as Drawing (A) 3BShown). However, in another embodiment, the inner diameter RI of the carrier plate 12 may be smaller than the diameter R110 of the lens 110, so as to improve the stability of the support and reduce the damage of the first connecting portion 16 caused by a large force. With this configuration, peripheral zone a2 of lens 110 hasThere is an annular void region a 22. The following embodiments are all suitable for the improvement, and are not described in detail below.
Please refer toDrawing (A) 4AAnddrawing (A) 4BIn aDrawing (A) 4AIn the jig 10 of (3), the number of the first connecting portions 16 is two. Each first connection portion 16 includes, in addition to the first sub-connection portions 16A, 16B, a first sub-connection portion 16C, wherein the first sub-connection portion 16B is connected between the first sub-connection portion 16A and the first sub-connection portion 16C. Further, an angle θ 3 between orthographic projections of the first connecting portion 16 on the reference plane R1 (also an angle between orthographic projections of the first sub-connecting portions 16A on the reference plane R1) is, for example, 180 degrees.
In thatDrawing (A) 4BIn the optical lens 100 of (1), the number of the first stripe-shaped void areas a21 is also two. Each of the first stripe-shaped void regions a21 includes a first sub-region a21C in addition to the first sub-regions a21A and a21B, wherein the first sub-region a21C corresponds to the first sub-connecting portion 16C, and the first sub-region a21B is connected between the first sub-region a21A and the first sub-region a 21C. In addition, an included angle θ 4 between orthographic projections of the first stripe-shaped void region a21 on the reference plane R2 (also an included angle between orthographic projections of the first sub-region a21A on the reference plane R2) is, for example, 180 degrees.
With the above structure, the fixture 10 can support the lens 110 more stably, and the problem of damage of the first connecting portion 16 due to large stress can be reduced, thereby increasing the process yield. In addition, by designing the proper included angle θ 1, the problem of the lens 110 falling due to vibration can be improved.
Please refer toDrawing (A) 5AAnddrawing (A) 5BIn aDrawing (A) 5AIn the jig 10, the number of the first connecting portions 16 is three, and each of the first connecting portions 16 is in the shape of a straight strip. An orthogonal projection of each first connecting portion 16 on the reference plane R1 extends, for example, in the radial direction DR of the shield plate 14, and an angle θ 3 between orthogonal projections of the first connecting portions 16 on the reference plane R1 is, for example, 120 degrees.
In thatDrawing (A) 5BIn the optical lens 100, the first stripThe number of the void regions a21 is also three, and each first stripe-shaped void region a21 is in the shape of a straight stripe. An orthogonal projection of each first strip-shaped void region a21 on the reference plane R2 extends, for example, in a radial direction of the central region a1 (the radial direction DR of the shielding plate 14), and an included angle θ 4 between orthogonal projections of the first strip-shaped void regions a21 on the reference plane R2 is, for example, 120 degrees.
With the above structure, the fixture 10 can support the lens 110 more stably, and the problem of damage of the first connecting portion 16 due to large stress can be reduced, thereby increasing the process yield. In addition, compared withDrawing (A) 4AThe design of the specific included angle θ 1 improves the problem that the lens 110 falls off due to vibration,drawing (A) 5AThe problem of the lens 110 falling off due to vibration can be improved by increasing the number of the first connecting portions 16, and the effect is better than that of the lensDrawing (A) 4AThe design of (3).
Please refer toDrawing (A) 6AAnddrawing (A) 6BIn aDrawing (A) 6AIn the jig 10 of (3), the number of the first connecting portions 16 is three. Each first connection portion 16 includes, in addition to the first sub-connection portions 16A, 16B, a first sub-connection portion 16C, wherein the first sub-connection portion 16B is connected between the first sub-connection portion 16A and the first sub-connection portion 16C. Further, an angle θ 3 between orthographic projections of the first connecting portion 16 on the reference plane R1 (also an angle between orthographic projections of the first sub-connecting portions 16A on the reference plane R1) is, for example, 120 degrees.
In thatDrawing (A) 6BIn the optical lens 100 of (1), the number of the first stripe-shaped void areas a21 is also three. Each of the first stripe-shaped void regions a21 includes a first sub-region a21C in addition to the first sub-regions a21A and a21B, wherein the first sub-region a21C corresponds to the first sub-connecting portion 16C, and the first sub-region a21B is connected between the first sub-region a21A and the first sub-region a 21C. In addition, an included angle θ 4 between orthographic projections of the first stripe-shaped void region a21 on the reference plane R2 (also an included angle between orthographic projections of the first sub-region a21A on the reference plane R2) is, for example, 120 degrees.
Under the above structure, the fixture 10 can support the lens 110 more stably and can reduceThe first connection portion 16 is damaged due to the large stress, thereby increasing the process yield. In addition, the jig 10 can also improve the problem that the lens 110 falls off due to vibration. In addition, compare withDrawing (A) 5BThe design of (a) is that of (b),drawing (A) 6BThe multi-segment design of the middle first stripe-shaped gap region a21 is helpful to reduce the stray light passing through the peripheral region a2 of the lens 110 via the first stripe-shaped gap region a21, so as to suppress the stray light of a specific angle, and improve the imaging quality of the optical imaging lens applying the optical lens 100.
Please refer toDrawing (A) 7AAnddrawing (A) 7BIn aDrawing (A) 7AIn the jig 10 of (3), the number of the first connecting portions 16 is two. Each first connection portion 16 includes, in addition to the first sub-connection portions 16A, 16B, a first sub-connection portion 16C, wherein the first sub-connection portion 16B is connected between the first sub-connection portion 16A and the first sub-connection portion 16C. Further, an angle θ 3 between orthographic projections of the first connecting portion 16 on the reference plane R1 (also an angle between orthographic projections of the first sub-connecting portions 16A on the reference plane R1) is, for example, 120 degrees.
In thatDrawing (A) 7BIn the optical lens 100 of (1), the number of the first stripe-shaped void areas a21 is also two. Each of the first stripe-shaped void regions a21 includes a first sub-region a21C in addition to the first sub-regions a21A and a21B, wherein the first sub-region a21C corresponds to the first sub-connecting portion 16C, and the first sub-region a21B is connected between the first sub-region a21A and the first sub-region a 21C. In addition, an included angle θ 4 between orthographic projections of the first stripe-shaped void region a21 on the reference plane R2 (also an included angle between orthographic projections of the first sub-region a21A on the reference plane R2) is, for example, 120 degrees.
The fixture 10 further includes at least one second connecting portion 18 located in the opening O. At least one of the second connecting portions 18 is connected to the carrier 12 and is not connected to the shielding plate 14. At least one of the second connecting portions 18 is adapted to support the peripheral zone a2 of the lens 110 and defines at least one second strip-shaped void region a23 in the peripheral zone a2 that is not connected to the central zone a 1. In detail, during the coating process, in addition to the shielding plate 14 and the at least one first connection portion 16 shielding the coating material, the at least one second connection portion 18 also shielding the coating material, so that in the optical lens 100 formed by the jig 10, at least one optical layer 120 exposes the region shielded by the at least one second connection portion 18 in addition to the central region a1 and the at least one first connection portion 16. In detail, the peripheral region a2 forms at least one second stripe-shaped void region a23 corresponding to at least one second connecting portion 18. At least one of the second stripe-shaped void regions a23 is connected to the periphery P of the lens 110 and is not connected to the central region a1, and at least one of the optical layers 120 further exposes at least one of the second stripe-shaped void regions a23, respectively.
In this embodiment, the number of the second connection portions 18 is one. The second connection portion 18 may include a plurality of second sub-connection portions (e.g., second sub-connection portions 18A, 18B) connected in series. An angle θ 5 between orthogonal projections of the two interconnected second sub-connecting portions 18A, 18B on a reference plane R1 perpendicular to the optical axis direction DT of the optical lens 100 falls within a range of 120 degrees to 150 degrees, for example.
The number of the second strip-shaped void areas a23 is also one. The second stripe-shaped void region a23 may include a plurality of second sub-regions (e.g., second sub-regions a23A and a23B) connected in series, wherein the shape and position of the second sub-region a23A correspond to the second sub-connection portion 18A, and the shape and position of the second sub-region a23B correspond to the second sub-connection portion 18B. An angle θ 6 between orthogonal projections of the two interconnected second sub-areas a23A, a23B on a reference plane R2 perpendicular to the optical axis direction DT of the optical lens 100 falls within a range of 120 degrees to 150 degrees, for example.
With the above structure, the fixture 10 can support the lens 110 more stably, and the problem of damage of the first connecting portion 16 due to large stress can be reduced, thereby increasing the process yield. In addition, the jig 10 can also improve the problem that the lens 110 falls off due to vibration. In addition, compare withDrawing (A) 6BThe design of (a) is that of (b),drawing (A) 7BThe second stripe-shaped void region A23 and the multi-segment design thereof are helpful to further reduce the stray light at a specific angle, and are relatively higher than that of the first stripe-shaped void regionDrawing (A) 6BAdding at least one said optical elementThe layer 120 covers the coverage of the peripheral region a2 for better imaging quality.
In summary, the embodiments of the present invention have the following beneficial effects: in the optical lens, since the optical layer is directly formed on the lens, the optical performance of the optical lens in the peripheral area can be improved while maintaining the desired assembly accuracy, compared to the case where the light shielding element is additionally disposed outside the lens. In addition, by properly designing the connecting part (such as the first connecting part or the second connecting part) of the jig for manufacturing the optical lens, the coating rate of at least one optical film can be improved, the process yield of the optical lens can be improved, and the problem that the lens falls off due to vibration in the film coating process can be solved.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that the invention may be practiced without departing from the spirit and scope of the appended claimsThe method ofVarious changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. An optical lens, comprising:
a lens having a central area and a peripheral area surrounding the central area; and
at least one optical layer disposed on the lens, wherein each optical layer is disposed in the peripheral area and exposes the central area, the peripheral area has at least one first stripe-shaped void area connected with the central area, and each optical layer exposes at least one first stripe-shaped void area.
2. The optical lens of claim 1, wherein: defining the point of each first strip-shaped void region connected with the central region as a first connecting point, wherein a straight line passing through the first connecting point from the center of the lens along the radial direction is a first radius line, and an included angle between each first strip-shaped void region and an orthographic projection of the first radius line on a reference plane perpendicular to the optical axis direction of the optical lens is in a range of 30-60 degrees.
3. The optical lens of claim 1, wherein: each first strip-shaped clearance area is connected between the central area and the periphery of the lens.
4. The optical lens of claim 1, wherein: the peripheral area is also provided with at least one second strip-shaped gap area which is not connected with the central area, and each optical layer is also exposed out of the second strip-shaped gap area.
5. The optical lens of claim 4, wherein: each first strip-shaped clearance area is connected between the central area and the periphery of the lens, and each second strip-shaped clearance area is connected with the periphery of the lens.
6. A jig adapted to fix the lens of the optical lens according to claim 1 in a process of manufacturing the optical lens, the jig comprising:
a carrier plate having at least one opening;
a shielding plate located in the opening and shielding the central area of the lens; and
at least one first connecting portion connecting the carrier plate and the shielding plate, wherein the at least one first connecting portion supports the peripheral area of the lens and shields at least one first strip-shaped clearance area.
7. The jig of claim 6, wherein: defining the point of each first connecting portion connected with the shielding plate as a second connecting point, wherein a straight line passing through the second connecting point from the center of the shielding plate along the radial direction is a second radius line, and an included angle between the orthographic projections of each first connecting portion and the second radius line on a reference plane perpendicular to the optical axis direction of the optical lens is within a range of 30-60 degrees.
8. The jig of claim 6, wherein: the inner diameter of the carrier plate is larger than the diameter of the lens.
9. The apparatus of claim 6, further comprising:
at least one second connecting part is positioned in the opening, is connected with the carrier plate and is not connected with the shielding plate, wherein the at least one second connecting part supports the peripheral area of the lens and defines at least one second strip-shaped gap area which is not connected with the central area in the peripheral area.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610257155.2A CN107305290B (en) | 2016-04-22 | 2016-04-22 | Optical mirror slip and its jig |
| TW105114281A TWI601981B (en) | 2016-04-22 | 2016-05-09 | Optical lens and fixture thereof |
| US15/172,158 US10162172B2 (en) | 2013-10-16 | 2016-06-03 | Optical lens and fixture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610257155.2A CN107305290B (en) | 2016-04-22 | 2016-04-22 | Optical mirror slip and its jig |
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| Publication Number | Publication Date |
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| CN107305290A true CN107305290A (en) | 2017-10-31 |
| CN107305290B CN107305290B (en) | 2019-11-26 |
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| CN201610257155.2A Active CN107305290B (en) | 2013-10-16 | 2016-04-22 | Optical mirror slip and its jig |
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| CN (1) | CN107305290B (en) |
| TW (1) | TWI601981B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11924534B2 (en) | 2021-07-16 | 2024-03-05 | Largan Precision Co., Ltd. | Lens assembly, optical unit and electronic device |
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| TW200844473A (en) * | 2007-05-08 | 2008-11-16 | Asia Optical Co Inc | Optical lens capable of reducing stray light |
| CN101846757A (en) * | 2009-03-24 | 2010-09-29 | 鸿富锦精密工业（深圳）有限公司 | Micro lens and micro lens array |
| TWI444691B (en) * | 2009-10-13 | 2014-07-11 | Hon Hai Prec Ind Co Ltd | Electromagnetic shielding coating and lens module using same |
| US8967814B2 (en) * | 2012-10-16 | 2015-03-03 | Genius Electronic Optical Co., Ltd. | Imaging lens with enhancement of blocking stray light |
| CN105190390B (en) * | 2013-03-26 | 2018-07-06 | 富士胶片株式会社 | Optical lens and its manufacturing method and lens unit, photographing module, electronic equipment |
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| US6545811B1 (en) * | 1999-01-29 | 2003-04-08 | Rohm Co., Ltd. | Lens unit for image formation, and image reader having lens unit |
| US20020063348A1 (en) * | 2000-06-01 | 2002-05-30 | Norihiro Imamura | Method for making lens array having light-shielding layer |
| US20080181601A1 (en) * | 2007-01-30 | 2008-07-31 | Dai Shintani | Optical part, lens barrel, and camera |
| CN102062923A (en) * | 2009-11-17 | 2011-05-18 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
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| US11924534B2 (en) | 2021-07-16 | 2024-03-05 | Largan Precision Co., Ltd. | Lens assembly, optical unit and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201809733A (en) | 2018-03-16 |
| TWI601981B (en) | 2017-10-11 |
| CN107305290B (en) | 2019-11-26 |
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