CN108254864A - Camera optical camera lens - Google Patents
Camera optical camera lens Download PDFInfo
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- CN108254864A CN108254864A CN201711366920.5A CN201711366920A CN108254864A CN 108254864 A CN108254864 A CN 108254864A CN 201711366920 A CN201711366920 A CN 201711366920A CN 108254864 A CN108254864 A CN 108254864A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 140
- 238000003384 imaging method Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 18
- 230000004075 alteration Effects 0.000 description 16
- 238000012937 correction Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 8
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- 239000000463 material Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 210000001747 pupil Anatomy 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
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Abstract
The present invention relates to field of optical lens, disclose a kind of camera optical camera lens, which sequentially includes from object side to image side：First lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens；And meet following relationship：‑10≤f1/f≤‑3.1,1.7≤n4≤2.2；1≤f6/f7≤10；1.7≤(R1+R2)/(R1‑R2)≤10；1.7≤n6≤2.2 while the camera optical camera lens can obtain high imaging performance, obtain low TTL.
Description
Technical field
The present invention relates to field of optical lens, more particularly to a kind of to be suitable for the hand-held terminals such as smart mobile phone, digital camera
The camera optical camera lens of the photographic devices such as equipment and monitor, PC camera lenses.
Background technology
In recent years, with the rise of smart mobile phone, the demand for minimizing phtographic lens increasingly improves, and general phtographic lens
Sensor devices nothing more than being that photosensitive coupled apparatus (Charge Coupled Device, CCD) or Complimentary Metal-Oxide are partly led
Two kinds of body device (Complementary Metal-OxideSemicondctor Sensor, CMOS Sensor), and due to half
Conductor manufacturing process technology progresses greatly so that the Pixel Dimensions of sensor devices reduce, along with electronic product is good with function now
And light and short external form is development trend, therefore, the miniaturization pick-up lens for having good image quality becomes at present
Mainstream in the market.To obtain preferable image quality, the camera lens that tradition is equipped on mobile phone camera uses three-chip type or four more
Formula lens arrangement.Also, with the development of technology and increasing for users on diversity, sensor devices elemental area not
It is disconnected to reduce, and in the case that requirement of the system to image quality is continuously improved, five chips, six chips, seven chip lens arrangements by
Gradually appear in lens design.The wide-angle that there is outstanding optical signature, ultra-thin and chromatic aberation fully to make corrections for active demand is taken the photograph
As camera lens.
Invention content
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of camera optical camera lens, high imaging performance can obtained
While, meet the requirement of ultrathin and wide angle.
In order to solve the above technical problems, embodiments of the present invention provide a kind of camera optical camera lens, the shooting light
Camera lens is learned, is sequentially included from object side to image side：First lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th
Lens and the 7th lens；
The focal length of the camera optical camera lens is f, and the focal length of first lens is f1, the first lens object side
Radius of curvature is R1, and the radius of curvature of the first lens image side surface is R2, and the refractive index of the 4th lens is n4, described the
The refractive index of six lens is n6, and the focal length of the 6th lens is f6, and the focal length of the 7th lens is f7, meets following relationship
Formula：
-10≤f1/f≤-3.1,
1.7≤n4≤2.2；
1≤f6/f7≤10；
1.7≤(R1+R2)/(R1-R2)≤10；
1.7≤n6≤2.2。
Embodiment of the present invention in terms of existing technologies, by the configuration mode of said lens, using in focal length, folding
Penetrate rate, the optics overall length of camera optical camera lens, have in the data of thickness and radius of curvature on axis particular kind of relationship lens it is common
Cooperation, enables camera optical camera lens to meet the requirement of ultrathin and wide angle while high imaging performance is obtained.
Preferably, the camera optical camera lens meets following relationship：-9.9≤f1/f≤-3.2；1.708≤n4≤
2.07；1.2≤f6/f7≤9.95；2≤(R1+R2)/(R1-R2)≤9.45；1.714≤n6≤2.1.
Preferably, first lens have a negative refracting power, and in paraxial for convex surface, image side surface is in paraxial for object side
Concave surface；Thickness is d1 on the axis of first lens, and meets following relationship：0.1≤d1≤0.3.
Preferably, the camera optical camera lens meets following relationship：0.16≤d1≤0.24.
Preferably, second lens have positive refracting power, and in paraxial for convex surface, image side surface is in paraxial for object side
Convex surface；The focal length of the camera optical camera lens is f, and the focal lengths of second lens is f2, the song of the second lens object side
Rate radius is R3, and the radius of curvature of the second lens image side surface is R4, and thickness is d3, and meet on the axis of second lens
Following relationship：0.46≤f2/f≤1.45；-1.94≤(R3+R4)/(R3-R4)≤-0.31；0.21≤d3≤0.87.
Preferably, the camera optical camera lens meets following relationship：0.74≤f2/f≤1.16；-1.21≤(R3+
R4)/(R3-R4)≤-0.39；0.34≤d3≤0.7.
Preferably, the third lens have a negative refracting power, and in paraxial for convex surface, image side surface is in paraxial for object side
Concave surface；The focal length of the camera optical camera lens is f, and the focal lengths of the third lens is f3, the song of the third lens object side
Rate radius is R5, and the radius of curvature of the third lens image side surface is R6, and thickness is d5, and meet on the axis of the third lens
Following relationship：-22.61≤f3/f≤-2.69；2.67≤(R5+R6)/(R5-R6)≤24.15；0.10≤d5≤0.31.
Preferably, the camera optical camera lens meets following relationship：-14.13≤f3/f≤-3.36；4.27≤(R5+
R6)/(R5-R6)≤19.32；0.16≤d5≤0.25.
Preferably, the 4th lens have a negative refracting power, and in paraxial for convex surface, image side surface is in paraxial for object side
Concave surface；The focal length of the camera optical camera lens is f, and the focal lengths of the 4th lens is f4, the song of the 4th lens object side
Rate radius is R7, and the radius of curvature of the 4th lens image side surface is R8, and thickness is d7, and meet on the axis of the 4th lens
Following relationship：-8.52≤f4/f≤-1.34；0.89≤(R7+R8)/(R7-R8)≤5.52；0.17≤d7≤0.66.
Preferably, the camera optical camera lens meets following relationship：-5.33≤f4/f≤-1.67；1.43≤(R7+
R8)/(R7-R8)≤4.42；0.28≤d7≤0.53.
Preferably, the 5th lens have positive refracting power, and in paraxial for concave surface, image side surface is in paraxial for object side
Convex surface；The focal length of the camera optical camera lens is f, and the focal lengths of the 5th lens is f5, the song of the 5th lens object side
Rate radius is R9, and the radius of curvature of the 5th lens image side surface is R10, and thickness is d9, and full on the axis of the 5th lens
Sufficient following relationship：0.19≤f5/f≤0.76；0.57≤(R9+R10)/(R9-R10)≤2.5；0.43≤d9≤1.69.
Preferably, the camera optical camera lens meets following relationship：0.31≤f5/f≤0.61；0.91≤(R9+
R10)/(R9-R10)≤2；0.69≤d9≤1.35.
Preferably, the 6th lens have a negative refracting power, and in paraxial for convex surface, image side surface is in paraxial for object side
Concave surface；The focal length of the camera optical camera lens is f, and the focal lengths of the 6th lens is f6, the song of the 6th lens object side
Rate radius is R11, and the radius of curvature of the 6th lens image side surface is R12, and thickness is d11 on the axis of the 6th lens, and
Meet following relationship：-12.27≤f6/f≤-0.87；0.7≤(R11+R12)/(R11-R12)≤2.53；0.1≤d11≤
0.31。
Preferably, the camera optical camera lens meets following relationship：-7.67≤f6/f≤-1.09；1.12≤(R11+
R12)/(R11-R12)≤2.02；0.16≤d11≤0.25.
Preferably, the 7th lens have a negative refracting power, and in paraxial for convex surface, image side surface is in paraxial for object side
Concave surface；The focal length of the camera optical camera lens is f, and the focal lengths of the 7th lens is f7, the song of the 7th lens object side
Rate radius is R13, and the radius of curvature of the 7th lens image side surface is R14, and thickness is d13 on the axis of the 7th lens, and
Meet following relationship：0.81≤(R13+R14)/(R13-R14)≤3.64；-1.24≤f7/f≤-0.35；0.1≤d13≤
0.6。
Preferably, the camera optical camera lens meets following relationship：1.3≤(R13+R14)/(R13-R14)≤
2.92；-0.77≤f7/f≤-0.44；0.16≤d13≤0.48.
Preferably, the optics overall length TTL of the camera optical camera lens is less than or equal to 6.07 millimeters.
Preferably, the optics overall length TTL of the camera optical camera lens is less than or equal to 5.79 millimeters.
Preferably, the aperture F numbers of the camera optical camera lens are less than or equal to 2.27.
Preferably, the aperture F numbers of the camera optical camera lens are less than or equal to 2.22.
The beneficial effects of the present invention are:Camera optical camera lens according to the present invention has outstanding optical characteristics, ultra-thin,
Wide-angle and chromatic aberation fully makes corrections, is particularly suitable for the cell-phone camera mirror being made of photographing elements such as CCD, CMOS of high pixel
Head assembly and WEB pick-up lens.
Description of the drawings
Fig. 1 is the structure diagram of the camera optical camera lens of first embodiment of the invention；
Fig. 2 is the axial aberration schematic diagram of camera optical camera lens shown in Fig. 1；
Fig. 3 is the ratio chromatism, schematic diagram of camera optical camera lens shown in Fig. 1；
Fig. 4 is the curvature of field of camera optical camera lens shown in Fig. 1 and distortion schematic diagram；
Fig. 5 is the structure diagram of the camera optical camera lens of second embodiment of the invention；
Fig. 6 is the axial aberration schematic diagram of camera optical camera lens shown in Fig. 5；
Fig. 7 is the ratio chromatism, schematic diagram of camera optical camera lens shown in Fig. 5；
Fig. 8 is the curvature of field of camera optical camera lens shown in Fig. 5 and distortion schematic diagram；
Fig. 9 is the structure diagram of the camera optical camera lens of third embodiment of the invention；
Figure 10 is the axial aberration schematic diagram of camera optical camera lens shown in Fig. 9；
Figure 11 is the ratio chromatism, schematic diagram of camera optical camera lens shown in Fig. 9；
Figure 12 is the curvature of field of camera optical camera lens shown in Fig. 9 and distortion schematic diagram.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to each reality of the present invention
The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the present invention,
Many technical details are proposed in order to which reader is made to more fully understand the present invention.But even if without these technical details and base
In the various changes and modifications of following embodiment, claimed technical solution of the invention can also be realized.
(first embodiment)
Refer to the attached drawing, the present invention provides a kind of camera optical camera lenses 10.Fig. 1 show first embodiment of the invention
Camera optical camera lens 10, the camera optical camera lens 10 include seven lens.Specifically, the camera optical camera lens 10, by object side
Sequentially include to image side：Aperture S1, the first lens L1, the second lens L2, third lens L3, the 4th lens L4, the 5th lens L5,
6th lens L6 and the 7th lens L7.It may be provided with optical filtering piece (filter) GF etc. between 7th lens L7 and image planes Si
Optical element.
First lens L1 is plastic material, and the second lens L2 is plastic material, and third lens L3 is plastic material, and the 4th thoroughly
Mirror L4 is glass material, and the 5th lens L5 is plastic material, and the 6th lens L6 is glass material, and the 7th lens L7 is plastics material
Matter.
The focal length of the whole camera optical camera lens 10 of definition is f, and the focal lengths of first lens is f1, -10≤f1/f≤-
3.1, it is specified that the negative refracting power of the first lens L1.During more than upper limit specified value, develop although being conducive to camera lens to ultrathin,
The negative refracting power for being the first lens L1 can be too strong, it is difficult to make corrections aberration the problems such as, while be unfavorable for camera lens to wide angle develop.Phase
When instead, more than lower limit specified value, the negative refracting power of the first lens can become weak, and camera lens is difficult to develop to ultrathin.Preferably, it is full
Foot -9.9≤f1/f≤- 3.2.
The refractive index of the 4th lens is defined as n4,1.7≤n4≤2.2, it is specified that the refractive index of the 4th lens L4,
It is more advantageous to developing to ultrathin in the range of this, while conducive to amendment aberration.Preferably, meet 1.708≤n4≤2.07.
The refractive index of the 6th lens is defined as n6,1.7≤n6≤2.2, it is specified that the refractive index of the 6th lens L6,
It is more advantageous to developing to ultrathin in the range of this, while conducive to amendment aberration.Preferably, meet 1.714≤n6≤2.1.
The focal lengths of the 6th lens is defined as f6, the focal lengths of the 7th lens is f7,1≤f6/f7≤10, it is specified that
The ratio of the focal length f7 of the focal length f6 and the 7th lens L7 of 6th lens L6 can effectively reduce the sensitivity of optical imaging lens group
Degree, further promotes image quality.Preferably, meet 1.2≤f6/f7≤9.95.
The radius of curvature for defining the first lens object side is R1, and the radius of curvature of the first lens image side surface is
R2,1.7≤(R1+R2)/(R1-R2)≤10 are, it is specified that the shape of the first lens L1, when outside range, with to ultra-thin wide-angle
Change development, it is difficult to the problems such as drawing the aberration at angle outside the axis that makes corrections.Preferably, meet 2≤(R1+R2)/(R1-R2)≤9.45.
When the focal length of camera optical camera lens 10 of the present invention, the focal length of each lens, the refractive index of associated lens, shooting light
It learns the optics overall length of camera lens, when thickness and radius of curvature meet above-mentioned relation formula on axis, can have videography optical lens head 10
High-performance, and meet the design requirement of low TTL.
In present embodiment, the object side of the first lens L1 is convex surface in paraxial place, and image side surface is concave surface in paraxial place, tool
There is negative refracting power.
Thickness is d1 on the axis of first lens L1, meets following relationship：0.1≤d1≤0.3 is advantageously implemented ultra-thin
Change.Preferably, 0.16≤d1≤0.24.
In present embodiment, the object side of the second lens L2 is convex surface in paraxial place, and image side surface is convex surface in paraxial place, tool
There is positive refracting power.
The focal length of whole camera optical camera lens 10 is f, and the focal length of the second lens L2 is f2, meets following relationship：0.46
≤ f2/f≤1.45, by controlling the positive light coke of the second lens L2 in zone of reasonableness, rationally effectively to balance by having
The spherical aberration and the curvature of field amount of system that the first lens L1 for having negative power is generated.Preferably, 0.74≤f2/f≤1.16.
The radius of curvature of second lens L2 objects side is R3, and the radius of curvature of the second lens L2 image side surfaces is R4, under satisfaction
Row relational expression：- 1.94≤(R3+R4)/(R3-R4)≤- 0.31 is, it is specified that the shape of the second lens L2, when outside range, with
Camera lens develops to ultra-thin wide angle, it is difficult to the axis that makes corrections colouring Aberration Problem.Preferably, -1.21≤(R3+R4)/(R3-R4)≤-
0.39。
Thickness is d3 on the axis of second lens L2, meets following relationship：0.21≤d3≤0.87 is advantageously implemented ultra-thin
Change.Preferably, 0.34≤d3≤0.7.
In present embodiment, the object side of third lens L3 is convex surface in paraxial place, and image side surface is concave surface in paraxial place, tool
There is negative refracting power.
The focal length of whole camera optical camera lens 10 is f, and the focal length of third lens L3 is f3, meets following relationship：-
22.61≤f3/f≤- 2.69 are conducive to the ability that system obtains the good balance curvature of field, effectively to promote image quality.It is preferred that
, -14.13≤f3/f≤- 3.36.
The radius of curvature of third lens L3 objects side is R5, and the radius of curvature of third lens L3 image side surfaces is R6, under satisfaction
Row relational expression：2.67≤(R5+R6)/(R5-R6)≤24.15 can effectively control the shape of third lens L3, it is saturating to be conducive to third
Mirror L3 is molded, and avoids causing to be molded the generation of bad and stress due to the surface curvature of third lens L3 is excessive.Preferably, 4.27
≤(R5+R6)/(R5-R6)≤19.32。
Thickness is d5 on the axis of third lens L3, meets following relationship：0.10≤d5≤0.31 is advantageously implemented ultra-thin
Change.Preferably, 0.16≤d5≤0.25.
In present embodiment, the object side of the 4th lens L4 is convex surface in paraxial place, and image side surface is concave surface in paraxial place, tool
There is negative refracting power.
The focal length of whole camera optical camera lens 10 is f, and the focal length of the 4th lens L4 is f4, meets following relationship：-8.52
≤ f4/f≤- 1.34, pass through the reasonable distribution of focal power so that system has preferable image quality and relatively low sensibility.
Preferably, -5.33≤f4/f≤- 1.67.
The radius of curvature of 4th lens L4 objects side is R7, and the radius of curvature of the 4th lens L4 image side surfaces is R8, under satisfaction
Row relational expression：0.89≤(R7+R8)/(R7-R8)≤5.52, it is specified that be the 4th lens L4 shape, when outside range, with
The development of ultra-thin wide angle, it is difficult to the problems such as drawing the aberration at angle outside the axis that makes corrections.Preferably, 1.43≤(R7+R8)/(R7-R8)≤
4.42。
Thickness is d7 on the axis of 4th lens L4, meets following relationship：0.17≤d7≤0.66 is advantageously implemented ultra-thin
Change.Preferably, 0.28≤d7≤0.53.
In present embodiment, the object side of the 5th lens L5 is concave surface in paraxial place, and image side surface is convex surface in paraxial place, tool
There is positive refracting power.
The focal length of whole camera optical camera lens 10 is f, and the focal length of the 5th lens L5 is f5, meets following relationship：0.19
≤ f5/f≤0.76, can be effectively so that the light angle of pick-up lens be gentle to limiting for the 5th lens L5, and reduction tolerance is quick
Sensitivity.Preferably, 0.31≤f5/f≤0.61.
The radius of curvature of 5th lens L5 objects side is R9, and the radius of curvature of the 5th lens L5 image side surfaces is R10, under satisfaction
Row relational expression：0.57≤(R9+R10)/(R9-R10)≤2.5, it is specified that be the 5th lens L5 shape, outside condition and range
When, as ultra-thin wide angle develops, it is difficult to the problems such as drawing the aberration at angle outside the axis that makes corrections.Preferably, 0.91≤(R9+R10)/(R9-
R10)≤2。
Thickness is d9 on the axis of 5th lens L5, meets following relationship：0.43≤d9≤1.69 are advantageously implemented ultra-thin
Change.Preferably, 0.69≤d9≤1.35.
In present embodiment, the object side of the 6th lens L6 is convex surface in paraxial place, and image side surface is concave surface in paraxial place, tool
There is negative refracting power.
The focal length of whole camera optical camera lens 10 is f, and the focal length of the 6th lens L6 is f6, meets following relationship：-
12.27≤f6/f≤- 0.87, passes through the reasonable distribution of focal power so that system has preferable image quality and relatively low quick
Perception.Preferably, -7.67≤f6/f≤- 1.09.
The radius of curvature of 6th lens L6 objects side is R11, and the radius of curvature of the 6th lens L6 image side surfaces is R12, is met
Following relationship：0.7≤(R11+R12)/(R11-R12)≤2.53, it is specified that be the 6th lens L6 shape, in condition and range
When outer, as ultra-thin wide angle develops, it is difficult to the problems such as drawing the aberration at angle outside the axis that makes corrections.Preferably, 1.12≤(R11+R12)/
(R11-R12)≤2.02。
Thickness is d11 on the axis of 6th lens L6, meets following relationship 0.1≤d11≤0.31, is advantageously implemented ultra-thin
Change.Preferably, 0.16≤d11≤0.25.
In present embodiment, the object side of the 7th lens L7 is convex surface in paraxial place, and image side surface is concave surface in paraxial place, tool
There is negative refracting power.
The focal length of whole camera optical camera lens 10 is f, and the focal length of the 7th lens L7 for f7 and meets following relationship：-
1.24≤f7/f≤- 0.35, passes through the reasonable distribution of focal power so that system has preferable image quality and relatively low sensitivity
Property；Preferably, -0.77≤f7/f≤- 0.44.
The radius of curvature of the 7th lens L7 objects side is R13, and the radius of curvature of the 7th lens image side surface is
R14 meets following relationship：0.81≤(R13+R14)/(R13-R14)≤3.64, it is specified that be the 7th lens L7 shape,
When outside condition and range, as ultra-thin wide angle develops, it is difficult to the problems such as drawing the aberration at angle outside the axis that makes corrections.Preferably, 1.3≤
(R13+R14)/(R13-R14)≤2.92。
Thickness is d13 on the axis of 7th lens L7, meets following relationship：0.1≤d13≤0.6 is advantageously implemented ultra-thin
Change.Preferably, 0.16≤d13≤0.48.
In present embodiment, the optics overall length TTL of camera optical camera lens 10 is less than or equal to 6.07 millimeters, is advantageously implemented
Ultrathin.Preferably, the optics overall length TTL of camera optical camera lens 10 is less than or equal to 5.79 millimeters.
In present embodiment, the aperture F numbers of camera optical camera lens 10 are less than or equal to 2.27.Large aperture, imaging performance are good.
Preferably, the aperture F numbers of camera optical camera lens 10 are less than or equal to 2.22.
It is so designed that, the optics overall length TTL of whole camera optical camera lens 10 is enabled to shorten as possible, maintain miniaturization
Characteristic.
The camera optical camera lens 10 for the present invention being illustrated with example below.The recorded following institute of symbol in each example
Show.The unit of distance, radius and center thickness is mm.
TTL:Optical length (distance on the object side to the axis of imaging surface of the 1st lens L1)；
Preferably, the point of inflexion and/or stationary point are also provided on the object side of the lens and/or image side surface, with full
The imaging demand of sufficient high-quality, specifically can embodiment, join lower described.
Shown below the design data of the camera optical camera lens 10 of first embodiment according to the present invention, focal length, distance,
The unit of radius and center thickness is mm.
Table 1, table 2 show the design data of the camera optical camera lens 10 of first embodiment of the invention.
【Table 1】
Wherein, the meaning of each symbol is as follows.
S1:Aperture；
R:Radius of curvature centered on when the radius of curvature of optical surface, lens；R1:The curvature of the object side of first lens L1 half
Diameter；
R2:The radius of curvature of the image side surface of first lens L1；
R3:The radius of curvature of the object side of second lens L2；
R4:The radius of curvature of the image side surface of second lens L2；
R5:The radius of curvature of the object side of third lens L3；
R6:The radius of curvature of the image side surface of third lens L3；
R7:The radius of curvature of the object side of 4th lens L4；
R8:The radius of curvature of the image side surface of 4th lens L4；
R9:The radius of curvature of the object side of 5th lens L5；
R10:The radius of curvature of the image side surface of 5th lens L5；
R11:The radius of curvature of the object side of 6th lens L6；
R12:The radius of curvature of the image side surface of 6th lens L6；
R13:The radius of curvature of the object side of 7th lens L7；
R14:The radius of curvature of the image side surface of 7th lens L7；
R15:The radius of curvature of the object side of optical filtering piece GF；
R16:The radius of curvature of the image side surface of optical filtering piece GF；
d:Distance on axis on the axis of lens between thickness and lens；
d0：Distance on aperture S1 to the axis of the object side of the first lens L1；
d1：Thickness on the axis of first lens L1；
d2：Distance on the image side surface of first lens L1 to the axis of the object side of the second lens L2；
d3：Thickness on the axis of second lens L2；
d4：Distance on the image side surface of second lens L2 to the axis of the object side of third lens L3；
d5：Thickness on the axis of third lens L3；
d6：Distance on the image side surface of third lens L3 to the axis of the object side of the 4th lens L4；
d7：Thickness on the axis of 4th lens L4；
d8：Distance on the image side surface of 4th lens L4 to the axis of the object side of the 5th lens L5；
d9：Thickness on the axis of 5th lens L5；
d10：Distance on the image side surface of 5th lens L5 to the axis of the object side of the 6th lens L6；
d11：Thickness on the axis of 6th lens L6；
d12：Distance on the image side surface of 6th lens L6 to the axis of the object side of the 7th lens L7；
d13：Thickness on the axis of 7th lens L7；
d14：Distance on the image side surface of 7th lens L7 to the axis of the object side of optical filtering piece GF；
d15：Thickness on the axis of optical filtering piece GF；
d16：Distance on the image side surface to the axis of image planes of optical filtering piece GF；
nd:The refractive index of d lines；
nd1:The refractive index of the d lines of first lens L1；
nd2:The refractive index of the d lines of second lens L2；
nd3:The refractive index of the d lines of third lens L3；
nd4:The refractive index of the d lines of 4th lens L4；
nd5:The refractive index of the d lines of 5th lens L5；
nd6：The refractive index of the d lines of 6th lens L6；
nd7：The refractive index of the d lines of 7th lens L7；
ndg:The refractive index of the d lines of optical filtering piece GF；
vd:Abbe number；
v1：The Abbe number of first lens L1；
v2：The Abbe number of second lens L2；
v3：The Abbe number of third lens L3；
v4：The Abbe number of 4th lens L4；
v5：The Abbe number of 5th lens L5；
v6：The Abbe number of 6th lens L6；
v7：The Abbe number of 7th lens L7；
vg：The Abbe number of optical filtering piece GF.
Table 2 shows the aspherical surface data of each lens in the camera optical camera lens 10 of first embodiment of the invention.
【Table 2】
Wherein, k is circular cone coefficient, and A4, A6, A8, A10, A12, A14, A16 are asphericity coefficients.
IH:Image height
Y=(x2/R)/[1+{1-(k+1)(x2/R2)}1/2]+A4x4+A6x6+A8x8+A10x10+A12x12+A14x14+
A16x16(1)
For convenience, each lens face is aspherical using aspherical shown in above-mentioned formula (1).But this hair
The bright aspherical polynomial form for being not limited to the formula (1) expression.
Table 3, table 4 show the point of inflexion of each lens and stationary point in the camera optical camera lens 10 of first embodiment of the invention
Design data.Wherein, R1, R2 represent object side and the image side surface of the first lens L1 respectively, and R3, R4 represent the second lens L2 respectively
Object side and image side surface, R5, R6 represent object side and the image side surface of third lens L3 respectively, R7, R8 represent the 4th thoroughly respectively
The object side of mirror L4 and image side surface, R9, R10 represent object side and the image side surface of the 5th lens L5 respectively, and R11, R12 are represented respectively
The object side of 6th lens L6 and image side surface, R13, R14 represent object side and the image side surface of the 7th lens L7 respectively." the point of inflexion
Position " field corresponding data is vertical range of the point of inflexion set by each lens surface to 10 optical axis of camera optical camera lens.It " stays
Point position " field corresponding data is vertical range of the stationary point set by each lens surface to 10 optical axis of camera optical camera lens.
【Table 3】
| Point of inflexion number | Point of inflexion position 1 | Point of inflexion position 2 | |
| R1 | 1 | 0.625 | |
| R2 | 1 | 0.605 | |
| R3 | 0 | ||
| R4 | 1 | 0.595 | |
| R5 | 2 | 0.495 | 0.805 |
| R6 | 2 | 0.625 | 0.775 |
| R7 | 1 | 0.245 | |
| R8 | 1 | 0.355 | |
| R9 | 2 | 1.025 | 1.245 |
| R10 | 1 | 1.105 | |
| R11 | 2 | 0.985 | 1.805 |
| R12 | 2 | 0.815 | 1.895 |
| R13 | 1 | 0.765 | |
| R14 | 1 | 0.795 |
【Table 4】
| Stationary point number | Stationary point position 1 | Stationary point position 2 | |
| R1 | |||
| R2 | 1 | 0.915 | |
| R3 | |||
| R4 | 1 | 0.695 | |
| R5 | |||
| R6 | |||
| R7 | 1 | 0.405 | |
| R8 | 1 | 0.615 | |
| R9 | |||
| R10 | |||
| R11 | 1 | 1.345 | |
| R12 | 1 | 1.375 | |
| R13 | 1 | 1.405 | |
| R14 | 1 | 2.125 |
Fig. 2, Fig. 3 respectively illustrate shooting light of light of the wavelength for 470nm, 555nm and 650nm Jing Guo first embodiment
Learn axial aberration and ratio chromatism, schematic diagram after camera lens 10.Fig. 4 then shows that the light that wavelength is 555nm is real by first
The curvature of field after the camera optical camera lens 10 of mode and distortion schematic diagram are applied, the curvature of field S of Fig. 4 is the curvature of field in sagitta of arc direction, and T is meridian
The curvature of field in direction.
The table 13 occurred afterwards is shown in each example 1,2,3 in various numerical value and conditional corresponding to defined parameter
Value.
As shown in table 13, first embodiment meets each conditional.
In the present embodiment, the Entry pupil diameters of the camera optical camera lens are 1.73mm, and full filed image height is
2.994mm, the field angle of diagonal are 76.75 °, wide-angle, ultra-thin, and on axis, the outer chromatic aberation of axis fully makes corrections, and have
Outstanding optical signature.
(second embodiment)
Second embodiment is essentially identical with first embodiment, and symbol meaning is identical with first embodiment, below only
List difference.
Table 5, table 6 show the design data of the camera optical camera lens 20 of second embodiment of the invention.
【Table 5】
Table 6 shows the aspherical surface data of each lens in the camera optical camera lens 20 of second embodiment of the invention.
【Table 6】
Table 7, table 8 show the point of inflexion of each lens and stationary point in the camera optical camera lens 20 of second embodiment of the invention
Design data.
【Table 7】
| Point of inflexion number | Point of inflexion position 1 | Point of inflexion position 2 | |
| R1 | 3 | 0.335 | 0.555 |
| R2 | 1 | 0.845 | |
| R3 | 1 | 0.705 | |
| R4 | 0 | ||
| R5 | 2 | 0.475 | 0.955 |
| R6 | 1 | 0.555 | |
| R7 | 1 | 0.215 | |
| R8 | 2 | 0.525 | 1.105 |
| R9 | 2 | 0.675 | 1.305 |
| R10 | 2 | 1.085 | 1.515 |
| R11 | 2 | 0.525 | 1.805 |
| R12 | 2 | 0.665 | 1.985 |
| R13 | 1 | 0.455 | |
| R14 | 1 | 0.625 |
【Table 8】
Fig. 6, Fig. 7 respectively illustrate shooting light of light of the wavelength for 470nm, 555nm and 650nm Jing Guo second embodiment
Learn axial aberration and ratio chromatism, schematic diagram after camera lens 20.Fig. 8 then shows that the light that wavelength is 555nm is real by second
Apply the curvature of field after the camera optical camera lens 20 of mode and distortion schematic diagram.
As shown in table 13, second embodiment meets each conditional.
In the present embodiment, the Entry pupil diameters of the camera optical camera lens are 1.716mm, and full filed image height is
2.994mm, the field angle of diagonal are 76.91 °, wide-angle, ultra-thin, and on axis, the outer chromatic aberation of axis fully makes corrections, and have
Outstanding optical signature.
(third embodiment)
Third embodiment and first embodiment are essentially identical, and symbol meaning is identical with first embodiment, below only
List difference.
Table 9, table 10 show the design data of the camera optical camera lens 30 of third embodiment of the invention.
【Table 9】
Table 10 shows the aspherical surface data of each lens in the camera optical camera lens 30 of third embodiment of the invention.
【Table 10】
Table 11, table 12 show the point of inflexion of each lens in the camera optical camera lens 30 of third embodiment of the invention and stay
Point design data.
【Table 11】
| Point of inflexion number | Point of inflexion position 1 | Point of inflexion position 2 | Point of inflexion position 3 | |
| R1 | 1 | 0.205 | ||
| R2 | 3 | 0.265 | 0.615 | 0.835 |
| R3 | 1 | 0.725 | ||
| R4 | 0 | |||
| R5 | 1 | 0.655 | ||
| R6 | 1 | 0.725 | ||
| R7 | 1 | 0.265 | ||
| R8 | 2 | 0.515 | 1.105 | |
| R9 | 2 | 0.825 | 1.205 | |
| R10 | 2 | 1.155 | 1.405 | |
| R11 | 2 | 0.475 | 1.855 | |
| R12 | 2 | 0.615 | 1.905 | |
| R13 | 2 | 0.545 | 1.845 | |
| R14 | 2 | 0.665 | 2.585 |
【Table 12】
| Stationary point number | Stationary point position 1 | Stationary point position 2 | |
| R1 | 1 | 0.375 | |
| R2 | |||
| R3 | |||
| R4 | |||
| R5 | |||
| R6 | |||
| R7 | 1 | 0.445 | |
| R8 | 2 | 0.965 | 1.205 |
| R9 | |||
| R10 | |||
| R11 | 1 | 0.815 | |
| R12 | 1 | 1.195 | |
| R13 | 2 | 1.035 | 2.285 |
| R14 | 1 | 1.855 |
Figure 10, Figure 11 respectively illustrate camera shooting of light of the wavelength for 470nm, 555nm and 650nm Jing Guo third embodiment
Axial aberration and ratio chromatism, schematic diagram after optical lens 30.Figure 12 then shows that the light that wavelength is 555nm passes through third
The curvature of field and distortion schematic diagram after the camera optical camera lens 30 of embodiment.
Following table 13 lists the numerical value that each conditional is corresponded in present embodiment according to above-mentioned condition formula.Obviously, this reality
The imaging optical system for applying mode meets above-mentioned conditional.
In the present embodiment, the Entry pupil diameters of the camera optical camera lens are 1.716mm, and full filed image height is
2.994mm, the field angle of diagonal are 76.89 °, wide-angle, ultra-thin, and on axis, the outer chromatic aberation of axis fully makes corrections, and have
Outstanding optical signature.
【Table 13】
It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific embodiment party of the present invention
Formula, and in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit and model of the present invention
It encloses.
Claims (20)
1. a kind of camera optical camera lens, which is characterized in that the camera optical camera lens is sequentially included from object side to image side：First
Lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens；
The focal length of the camera optical camera lens is f, and the focal lengths of first lens is f1, the curvature of the first lens object side
Radius is R1, and the radius of curvature of the first lens image side surface is R2, and the refractive index of the 4th lens is n4, and the described 6th thoroughly
The refractive index of mirror is n6, and the focal length of the 6th lens is f6, and the focal length of the 7th lens is f7, meets following relationship：
-10≤f1/f≤-3.1；
1.7≤n4≤2.2；
1≤f6/f7≤10；
1.7≤(R1+R2)/(R1-R2)≤10；
1.7≤n6≤2.2。
2. camera optical camera lens according to claim 1, which is characterized in that the camera optical camera lens meets following relationship
Formula：
-9.9≤f1/f≤-3.2；
1.708≤n4≤2.07；
1.2≤f6/f7≤9.95；
2≤(R1+R2)/(R1-R2)≤9.45；
1.714≤n6≤2.1。
3. camera optical camera lens according to claim 1, which is characterized in that first lens have negative refracting power,
Object side in paraxial for convex surface, image side surface in it is paraxial be concave surface；
Thickness is d1 on the axis of first lens, and meets following relationship：
0.1≤d1≤0.3。
4. camera optical camera lens according to claim 3, which is characterized in that the camera optical camera lens meets following relationship
Formula：
0.16≤d1≤0.24。
5. camera optical camera lens according to claim 1, which is characterized in that second lens have positive refracting power,
Object side in paraxial for convex surface, image side surface in it is paraxial be convex surface；
The focal length of the camera optical camera lens is f, and the focal lengths of second lens is f2, the curvature of the second lens object side
Radius is R3, and the radius of curvature of the second lens image side surface is R4, and thickness is d3 on the axis of second lens, and under meeting
Row relational expression：
0.46≤f2/f≤1.45；
-1.94≤(R3+R4)/(R3-R4)≤-0.31；
0.21≤d3≤0.87。
6. camera optical camera lens according to claim 5, which is characterized in that the camera optical camera lens meets following relationship
Formula：
0.74≤f2/f≤1.16；
-1.21≤(R3+R4)/(R3-R4)≤-0.39；
0.34≤d3≤0.7。
7. camera optical camera lens according to claim 1, which is characterized in that the third lens have negative refracting power,
Object side in paraxial for convex surface, image side surface in it is paraxial be concave surface；
The focal length of the camera optical camera lens is f, and the focal lengths of the third lens is f3, the curvature of the third lens object side
Radius is R5, and the radius of curvature of the third lens image side surface is R6, and thickness is d5 on the axis of the third lens, and under meeting
Row relational expression：
-22.61≤f3/f≤-2.69；
2.67≤(R5+R6)/(R5-R6)≤24.15；
0.10≤d5≤0.31。
8. camera optical camera lens according to claim 7, which is characterized in that the camera optical camera lens meets following relationship
Formula：
-14.13≤f3/f≤-3.36；
4.27≤(R5+R6)/(R5-R6)≤19.32；
0.16≤d5≤0.25。
9. camera optical camera lens according to claim 1, which is characterized in that the 4th lens have negative refracting power,
Object side in paraxial for convex surface, image side surface in it is paraxial be concave surface；
The focal length of the camera optical camera lens is f, and the focal lengths of the 4th lens is f4, the curvature of the 4th lens object side
Radius is R7, and the radius of curvature of the 4th lens image side surface is R8, and thickness is d7 on the axis of the 4th lens, and under meeting
Row relational expression：
-8.52≤f4/f≤-1.34；
0.89≤(R7+R8)/(R7-R8)≤5.52；
0.17≤d7≤0.66。
10. camera optical camera lens according to claim 9, which is characterized in that the camera optical camera lens meets following pass
It is formula：
-5.33≤f4/f≤-1.67；
1.43≤(R7+R8)/(R7-R8)≤4.42；
0.28≤d7≤0.53。
11. camera optical camera lens according to claim 1, which is characterized in that the 5th lens have positive refracting power,
Object side in paraxial for concave surface, image side surface in it is paraxial be convex surface；
The focal length of the camera optical camera lens is f, and the focal lengths of the 5th lens is f5, the curvature of the 5th lens object side
Radius is R9, and the radius of curvature of the 5th lens image side surface is R10, and thickness is d9, and meet on the axis of the 5th lens
Following relationship：
0.19≤f5/f≤0.76；
0.57≤(R9+R10)/(R9-R10)≤2.5；
0.43≤d9≤1.69。
12. camera optical camera lens according to claim 11, which is characterized in that the camera optical camera lens meets following pass
It is formula：
0.31≤f5/f≤0.61；
0.91≤(R9+R10)/(R9-R10)≤2；
0.69≤d9≤1.35。
13. camera optical camera lens according to claim 1, which is characterized in that the 6th lens have negative refracting power,
Object side in paraxial for convex surface, image side surface in it is paraxial be concave surface；
The focal length of the camera optical camera lens is f, and the focal lengths of the 6th lens is f6, the curvature of the 6th lens object side
Radius is R11, and the radius of curvature of the 6th lens image side surface is R12, and thickness is d11, and full on the axis of the 6th lens
Sufficient following relationship：
-12.27≤f6/f≤-0.87；
0.7≤(R11+R12)/(R11-R12)≤2.53；
0.1≤d11≤0.31。
14. camera optical camera lens according to claim 13, which is characterized in that the camera optical camera lens meets following pass
It is formula：
-7.67≤f6/f≤-1.09；
1.12≤(R11+R12)/(R11-R12)≤2.02；
0.16≤d11≤0.25。
15. camera optical camera lens according to claim 1, which is characterized in that the 7th lens have negative refracting power,
Object side in paraxial for convex surface, image side surface in it is paraxial be concave surface；
The focal length of the camera optical camera lens is f, and the focal lengths of the 7th lens is f7, the curvature of the 7th lens object side
Radius is R13, and the radius of curvature of the 7th lens image side surface is R14, and thickness is d13, and full on the axis of the 7th lens
Sufficient following relationship：
0.81≤(R13+R14)/(R13-R14)≤3.64；
-1.24≤f7/f≤-0.35；
0.1≤d13≤0.6。
16. camera optical camera lens according to claim 15, which is characterized in that the camera optical camera lens meets following pass
It is formula：
1.3≤(R13+R14)/(R13-R14)≤2.92；
-0.77≤f7/f≤-0.44；
0.16≤d13≤0.48。
17. camera optical camera lens according to claim 1, which is characterized in that the optics overall length of the camera optical camera lens
TTL is less than or equal to 6.07 millimeters.
18. camera optical camera lens according to claim 17, which is characterized in that the optics overall length of the camera optical camera lens
TTL is less than or equal to 5.79 millimeters.
19. camera optical camera lens according to claim 1, which is characterized in that the aperture F numbers of the camera optical camera lens are small
In or equal to 2.27.
20. camera optical camera lens according to claim 19, which is characterized in that the aperture F numbers of the camera optical camera lens
Less than or equal to 2.22.
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| CN201711366920.5A CN108254864B (en) | 2017-12-18 | 2017-12-18 | Image pickup optical lens |
| US15/864,553 US10598895B2 (en) | 2017-12-18 | 2018-01-08 | Camera optical lens |
| JP2018010817A JP6429422B1 (en) | 2017-12-18 | 2018-01-25 | Imaging optical lens |
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| US10627600B2 (en) | 2017-12-22 | 2020-04-21 | Largan Precision Co., Ltd. | Imaging optical lens system, image capturing unit and electronic device |
| US10942335B2 (en) | 2018-12-26 | 2021-03-09 | Largan Precision Co., Ltd. | Photographing optical system, image capturing unit and electronic device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200218 |