CN208270839U - A kind of microcephaly's large aperture micro lens - Google Patents
A kind of microcephaly's large aperture micro lens Download PDFInfo
- Publication number
- CN208270839U CN208270839U CN201820716907.1U CN201820716907U CN208270839U CN 208270839 U CN208270839 U CN 208270839U CN 201820716907 U CN201820716907 U CN 201820716907U CN 208270839 U CN208270839 U CN 208270839U
- Authority
- CN
- China
- Prior art keywords
- lens
- microcephaly
- large aperture
- micro lens
- aperture micro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Lenses (AREA)
Abstract
The utility model relates to a kind of microcephaly's large aperture micro lens, microcephaly's large aperture micro lens is from object side, successively by: have positive refracting power, and image planes side is the first lens of concave surface, has negative refractive power, and object side is the second lens of concave surface, with positive refracting power, and image planes side is the third lens on convex surface and has negative refractive power, and object side is the 4th lens composition on convex surface.Using 4 aspherical glass lens, optics overall length may be implemented less than 2.9mm, f-number is the bright camera lens of F/1.9, has good performance for imaging also under darker environment, maximum as circle isAnd the first lens, the second lens clear aperture are less thanStructure be applicable to shield smart phone comprehensively.
Description
Technical field
The utility model relates to shield the smart phone of high pixel or thin video photographic device technical field comprehensively, especially
A kind of microcephaly's large aperture micro lens.
Background technique
With the development of image sensor chip technology, single pixel size is done smaller and smaller, and this requires take therewith
The pick-up lens parsing power matched is also higher and higher.Smart phone with camera function, recently as the market demand also new hair
Exhibition trend, in addition to high pixel, large aperture, except extra-thin requirement, comprehensive screen of smart phone also lifts on the market recently
Play upsurge.This requires pick-up lens other than meeting described above require, and the size of object side is small as far as possible, with
Meet the requirement of screen structure design aspect comprehensively.
Utility model content
The purpose of this utility model is to provide for a kind of microcephaly's large aperture micro lens.
The technical solution of the utility model is: a kind of microcephaly's large aperture micro lens, and microcephaly's large aperture micro lens is from object
Side rise, successively by: have positive refracting power, and image planes side be concave surface the first lens, have negative refractive power, and object side be it is recessed
Second lens in face have positive refracting power, and image planes side is the third lens on convex surface and has negative refractive power, and object side is convex
4th lens in face form, and meet conditional below:
1<(R5+R6)/(R5-R6)<2
0<F3/F<0.6
Wherein, R5, R6 are respectively the side of the object and image planes flank radius of the third lens, and F3, F are respectively that third is saturating
Mirror focal length and system focal length.
A kind of above-mentioned microcephaly's large aperture micro lens, microcephaly's large aperture micro lens also meet following relationship:
0.5<Y1/ImgH<0.7
Wherein, Y1 is the effective clear aperture of side of the object of the 4th lens, and ImgH is total image height.
A kind of above-mentioned microcephaly's large aperture micro lens, microcephaly's large aperture micro lens also meet following relationship:
0.25<Ct6-Sag6+Sag7<0.35
Wherein, ct6 is the center air interval of the third lens and the 4th lens, and Sag6 is the face R6 rise, and Sag7 is the face R7
Rise.
The beneficial effects of the utility model are: the utility model uses 4 aspherical glass lens, it is total that optics may be implemented
Long to be less than 2.9mm, f-number is the bright camera lens of F/1.9, has good performance for imaging also under darker environment, maximum picture
Circle isAnd the first lens, the second lens clear aperture are less thanStructure be applicable to shield intelligence comprehensively
It can mobile phone.
Detailed description of the invention
Fig. 1 is the optical axis direction sectional view of the utility model microcephaly's large aperture micro lens；
Fig. 2 is the X-Y scheme of microcephaly's large aperture micro lens in the utility model embodiment 1；
Fig. 3 is the defocusing curve of microcephaly's large aperture micro lens in the utility model embodiment 1；
Fig. 4 is the MTF transfer curve figure of microcephaly's large aperture micro lens in the utility model embodiment 1；
Fig. 5 is the astigmatism curvature of field and optical distortion feature song of microcephaly's large aperture micro lens in the utility model embodiment 1
Line；
Fig. 6 is the X-Y scheme of microcephaly's large aperture micro lens in the utility model embodiment 2；
Fig. 7 is the defocusing curve of microcephaly's large aperture micro lens in the utility model embodiment 2；
Fig. 8 is the MTF transfer curve figure of microcephaly's large aperture micro lens in the utility model embodiment 2；
Fig. 9 is the astigmatism curvature of field and optical distortion indicatrix of the imaging lens system group in the utility model embodiment 2.
In figure: the first lens of P1., the second lens of P2., P3. the third lens, the 4th lens of P4..
Specific embodiment
In order to more clearly state the utility model, the utility model is further described with reference to the accompanying drawing.
A kind of microcephaly's large aperture micro lens, microcephaly's large aperture micro lens from object side, successively by: have positive refraction
Power, and image planes side is the first lens P1 of concave surface, has negative refractive power, and object side is the second lens P2 of concave surface, is had just
Refracting power, and image planes side is the third lens P3 on convex surface and has negative refractive power, and object side is the 4th lens P4 group on convex surface
At distribution for the positive negative power of above 4 eyeglasses makes each aberration obtain good correction, the system lateral chromatic aberration school
Just to less than 2.5um, and meet conditional below:
1<(R5+R6)/(R5-R6)<2
0<F3/F<0.6
Wherein, R5, R6 are respectively the side of the object and image planes flank radius of the third lens P3, and F3, F are respectively third
Lens P3 focal length and system focal length.
The condition of appropriate setting the third lens curvature radius can ensure that above there is no problem and it is total to shorten lens for lens processing
It is long.
A kind of above-mentioned microcephaly's large aperture micro lens, microcephaly's large aperture micro lens also meet following relationship:
0.5<Y1/ImgH<0.7
Wherein, Y1 is the effective clear aperture of side of the object of the 4th lens P4, and ImgH is total image height.This conditional is conducive to
The edge resolution of system is promoted, and realizes that side of the object is more small-bore to meet the needs of comprehensive screen mobile phone structure design.
A kind of above-mentioned microcephaly's large aperture micro lens, microcephaly's large aperture micro lens also meet following relationship:
0.25<Ct6-Sag6+Sag7<0.35
Wherein, ct6 is the center air interval of the third lens P3 and the 4th lens P4, and Sag6 is the face R6 rise, and Sag7 is
The face R7 rise.
4 eyeglasses of microcephaly's large aperture micro lens all use even aspheric surface glass lens, and asphericity coefficient meets such as
Lower equation:
Z=cy2/ [1+ { 1- (1+k) c2y2}+1/2]+A4y4+A6y6+A8y8
+A10y10+A12y12+A14y14+A16y16+A18y18+A20y20
Wherein,
Z: aspherical rise,
C: aspherical paraxial curvature,
Y: camera lens aperture,
K: circular cone coefficient,
A4: 4 asphericity coefficients,
A6: 6 asphericity coefficients,
A8: 8 asphericity coefficients,
A10: 10 asphericity coefficients,
A12: 12 asphericity coefficients,
A14: 14 asphericity coefficients,
A16: 16 asphericity coefficients,
A18: 18 asphericity coefficients,
A20: 20 asphericity coefficients.
The utility model uses 4 aspherical glass lens, and optics overall length may be implemented less than 2.9mm, f-number F/
1.9 bright camera lens has good performance for imaging also under darker environment, maximum as circle isAnd first
Lens P1, the second lens P2 clear aperture are less thanStructure be applicable to shield smart phone comprehensively.
Embodiment 1
Field angle is 84 °, aperture F1.98, and optics overall length TTL (distance of eyeglass front end to image planes) TTL is
The optical system that 2.87mm, image height and TTL ratio are 0.63.The design parameter of microcephaly's large aperture micro lens please refer to table 1 (a) and
Table 1 (b).
Table 1 (a)
Table 1 (b)
| Surface serial number | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| k | -2.14069 | -86.8924 | 93.90935 | 211.9312 | -0.24617 | -7.23296 | -0.61078 | -4.74826 |
| A4 | 0.305571 | -0.4616 | -0.46744 | 0.045457 | 0.71914 | -3.21648 | -1.00074 | -0.47768 |
| A6 | -10.5646 | 7.672068 | -4.14986 | 0.888814 | 0.050162 | 26.25516 | 1.700206 | 0.822156 |
| A8 | 296.9872 | -185.618 | 33.01052 | -37.6423 | -21.3641 | -158.576 | -3.41055 | -1.29163 |
| A10 | -4820.21 | 2508.479 | -153.858 | 386.7882 | 208.4247 | 658.2065 | 6.142681 | 1.442061 |
| A12 | 46813.42 | -21301.9 | -363.314 | -2248.21 | -1094.63 | -1825.28 | -8.55685 | -1.06638 |
| A14 | -278016 | 113537.5 | 8034.5 | 7892.462 | 3448.127 | 3308.36 | 8.739566 | 0.482312 |
| A16 | 988168.3 | -367528 | -38855.9 | -16413.3 | -6425.46 | -3716.98 | -5.88619 | -0.11357 |
| A18 | -1928670 | 658340.6 | 84951.55 | 18564.11 | 6486.144 | 2330.066 | 2.249773 | 0.007084 |
| A20 | 1588042 | -498811 | -71930.6 | -8761.93 | -2728.5 | -620.621 | -0.3635 | 0.001216 |
The value that the value that the value of (R5+R6)/(R5-R6) is 1.92, F3/F in embodiment is 0.56, Y1/ImgH is 0.66,
The value of Ct6-Sag6+Sag7 is 0.31.
As shown in Fig. 2, being the X-Y scheme of microcephaly's large aperture micro lens in the present embodiment.The mirror of microcephaly's large aperture micro lens
Plate shape is more well-balanced, convenient for molding production.And eyeglass spacing is reasonable, designs convenient for the structure in later period.
As shown in figure 3, being the defocusing curve of microcephaly's large aperture micro lens in the present embodiment, 0 visual field, 0.4 view are respectively indicated
Field, 0.6 visual field, 0.8 visual field and 1.0 visual fields optical property and defocusing amount.Peak of curve distance center point is closer, indicates optics
Performance is better, and place is also smaller.
As shown in figure 4, being MTF transfer curve figure (the optical delivery letter of microcephaly's large aperture micro lens in the present embodiment
Number), can be with the image quality of concentrated expression system, curve shape is more smooth, and the height of opposite X-axis is higher, it was demonstrated that system
Image quality it is better, the use of the new type camera lens clarity with higher.
As shown in figure 5, being the astigmatism curvature of field of microcephaly's large aperture micro lens and optical distortion indicatrix in the present embodiment.
Embodiment 2
Field angle is 84 °, aperture F1.98, and optics overall length TTL (distance of eyeglass front end to image planes) TTL is
The optical system that 4.2114mm, image height and TTL ratio are 0.79.
The design parameter of microcephaly's large aperture micro lens please refers to table 2 (a) and table 2 (b):
Table 2 (a)
| Surface serial number | Surface type | Radius of curvature | Thickness | Material property (Nd:Vd) | Effective aperture |
| Object | Spherical surface | Infinitely | Infinitely | 0.5028 | |
| stop | Spherical surface | Infinitely | Infinitely | 0.5106 | |
| 2 | It is aspherical | 1.179941 | 1.179941 | 1.546:56.039 | 0.5460 |
| 3 | It is aspherical | 6.701632 | 6.701632 | 0.5767 | |
| 4 | It is aspherical | -8.16275 | -8.16275 | 1.661:21.400 | 0.6731 |
| 5 | It is aspherical | 18.61465 | 18.61465 | 0.7175 | |
| 6 | It is aspherical | -1.58126 | -1.58126 | 1.546:56.039 | 0.8520 |
| 7 | It is aspherical | -0.49876 | -0.49876 | 1.2930 | |
| 8 | It is aspherical | 1.536839 | 1.536839 | 1.537:56.109 | 1.4092 |
| 9 | It is aspherical | 0.459413 | 0.459413 | 1.4967 | |
| 10 | It is aspherical | Infinitely | Infinitely | BK7_SCHOTT | 1.5580 |
| 11 | It is aspherical | Infinitely | Infinitely | 1.7986 | |
| Picture | Spherical surface | Infinitely | Infinitely | 1.8165 |
Table 2 (b)
The value that (R5+R6) of microcephaly's large aperture micro lens/(R5-R6) value is 1.98, F3/F in the present embodiment is 0.56,
The value that the value of Y1/ImgH is 0.66, Ct6-Sag6+Sag7 is 0.32.
As shown in fig. 6, being the X-Y scheme of microcephaly's large aperture micro lens in the present embodiment.
As shown in fig. 7, being the defocusing curve of microcephaly's large aperture micro lens in the present embodiment.
As shown in figure 8, being MTF transfer curve figure (the optical delivery letter of microcephaly's large aperture micro lens in the present embodiment
Number).
As shown in figure 9, being the astigmatism curvature of field of microcephaly's large aperture micro lens and optical distortion indicatrix in the present embodiment.
The embodiment created above to the utility model is described in detail, but the content is only the utility model wound
The preferred embodiment made, should not be considered as limiting the scope of the present invention.It is all to create range according to the utility model
Made all the changes and improvements etc., shall still fall within the scope of this patent.
Claims (3)
1. a kind of microcephaly's large aperture micro lens, which is characterized in that microcephaly's large aperture micro lens from object side, successively by:
With positive refracting power, and image planes side is the first lens (P1) of concave surface, has a negative refractive power, and object side be concave surface second thoroughly
Mirror (P2) has positive refracting power, and image planes side is the third lens (P3) on convex surface and has negative refractive power, and object side is convex surface
The 4th lens (P4) composition, and meet conditional below:
1<(R5+R6)/(R5-R6)<2
0<F3/F<0.6
Wherein, R5, R6 are respectively the side of the object and image planes flank radius of the third lens (P3), and F3, F are respectively that third is saturating
Mirror (P3) focal length and system focal length.
2. one of according to claim 1 microcephaly's large aperture micro lens, which is characterized in that microcephaly's large aperture micro lens is also
Meet following relationship:
0.5<Y1/ImgH<0.7
Wherein, Y1 is the effective clear aperture of side of the object of the 4th lens (P4), and ImgH is total image height.
3. one of according to claim 1 microcephaly's large aperture micro lens, which is characterized in that microcephaly's large aperture micro lens is also
Meet following relationship:
0.25<Ct6-Sag6+Sag7<0.35
Wherein, ct6 is the center air interval of the third lens (P3) and the 4th lens (P4), and Sag6 is the face R6 rise, and Sag7 is
The face R7 rise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820716907.1U CN208270839U (en) | 2018-05-15 | 2018-05-15 | A kind of microcephaly's large aperture micro lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820716907.1U CN208270839U (en) | 2018-05-15 | 2018-05-15 | A kind of microcephaly's large aperture micro lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208270839U true CN208270839U (en) | 2018-12-21 |
Family
ID=64682737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820716907.1U Active CN208270839U (en) | 2018-05-15 | 2018-05-15 | A kind of microcephaly's large aperture micro lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208270839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020140499A1 (en) * | 2018-12-31 | 2020-07-09 | 瑞声通讯科技(常州)有限公司 | Camera optical lens |
-
2018
- 2018-05-15 CN CN201820716907.1U patent/CN208270839U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020140499A1 (en) * | 2018-12-31 | 2020-07-09 | 瑞声通讯科技(常州)有限公司 | Camera optical lens |
| US11409076B2 (en) | 2018-12-31 | 2022-08-09 | Aac Optics Solutions Pte. Ltd. | Camera optical lens |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109613679B (en) | Image pickup optical lens | |
| CN109491051B (en) | Image pickup optical lens | |
| WO2021128564A1 (en) | Optical lens and imaging device | |
| CN109683294B (en) | Image pickup optical lens | |
| CN110007442B (en) | Image pickup optical lens | |
| KR101837371B1 (en) | Fast and small optical system for high-pixel | |
| CN109491050B (en) | Image pickup optical lens | |
| CN109613680B (en) | Image pickup optical lens | |
| US11693210B2 (en) | Camera optical lens | |
| CN208172360U (en) | The small four-piece type camera lens of image planes incident angle | |
| CN110161654B (en) | Image pickup optical lens | |
| WO2022041382A1 (en) | Optical camera lens | |
| WO2022000657A1 (en) | Camera optical lens | |
| CN208818911U (en) | A kind of photographing optical lens | |
| CN208172359U (en) | A kind of imaging lens system group | |
| CN208270839U (en) | A kind of microcephaly's large aperture micro lens | |
| CN208172363U (en) | A kind of microcephaly's large aperture camera | |
| CN108627954A (en) | A kind of imaging lens system group | |
| CN208172358U (en) | A kind of high pixel micromirrors head | |
| US11803031B2 (en) | Camera optical lens | |
| WO2022041383A1 (en) | Camera optical lens | |
| WO2022047991A1 (en) | Optical camera lens | |
| CN111025596B (en) | Image pickup optical lens | |
| CN111123477B (en) | Image pickup optical lens | |
| CN110531492B (en) | Image pickup optical lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200426 Address after: 124000 2F, No.4 electronic workshop, high tech Industrial Development Zone, no.388, Zhonghua North Road, Xinglongtai District, Panjin City, Liaoning Province Patentee after: Liaoning Zhonglan Photoelectric Technology Co., Ltd Address before: 124000 Xinglongtai District, Panjin, Liaoning Province, China Road East Patentee before: LIAONING ZHONGLAN ELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A small head large aperture micro lens Effective date of registration: 20210726 Granted publication date: 20181221 Pledgee: China Construction Bank Corporation Panjin branch Pledgor: Liaoning Zhonglan Photoelectric Technology Co.,Ltd. Registration number: Y2021210000049 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |