CN203350521U - 8mm wide-aperture day and night fixed focal lenses - Google Patents
8mm wide-aperture day and night fixed focal lenses Download PDFInfo
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- CN203350521U CN203350521U CN201320382024.9U CN201320382024U CN203350521U CN 203350521 U CN203350521 U CN 203350521U CN 201320382024 U CN201320382024 U CN 201320382024U CN 203350521 U CN203350521 U CN 203350521U
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Abstract
The utility model discloses an 8mm wide-aperture day and night fixed focal lenses. The 8mm wide-aperture day and night fixed focal lenses comprise the first convex and concave positive focal power lens, the second convex and concave negative focal power lens, the third double convex positive focal power lens, the fourth double concave positive focal power lens, the fifth concave and convex positive focal power lens and the sixth double convex positive focal power lens which are sequentially arranged along a light incidence direction, wherein the third lens and the fourth lens are bonded through optical glue, the lenses employ a positive, negative, positive, negative, positive, positive, five-group, six-sheet structure and have a simple structure. A relatively compact volume of the lenses is realized through reasonable focal power distribution, tolerance susceptibility is further reduced, and an assembling yield is improved; chromatic aberration and spherical aberration are corrected through reasonable arrangement of the bonded lenses, imaging quality is greatly improved, so high-definition requirements can be fully met; an F1.4 wide aperture is realized through reasonable use of glass combination, the imaging quality is excellent, no infrared defocus can be realized, intelligible and bright frames can be realized even under low illumination night conditions.
Description
Technical field
The utility model relates to field of optical lens, refers to especially a kind of 8mm large aperture day and night tight shot.
Background technology
Tight shot is multiplex has fast response time in the monitoring of fixed scene, the advantages such as good imaging quality.The 8mm tight shot has proper angle and magnification as standard lens, makes that monitored object details is more clearly and monitoring range is more moderate, therefore is widely used in various occasions.Because the high-aperture lenses design difficulty is larger, therefore traditional large aperture 8mm camera lens is used eyeglass quantity many, makes the complex structure of camera lens, and volume is large, and cost is high.
The utility model content
The purpose of this utility model is to provide the low and 8mm large aperture day and night tight shot that image quality is high of a kind of cost.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of 8mm large aperture day and night tight shot, comprise the first lens of the convex-concave positive light coke set gradually along the light incident direction, the second lens of convex-concave negative power, the 3rd lens of biconvex positive light coke, the 4th lens of concave-concave negative power, the 5th lens of concavo-convex positive light coke, the 6th lens of biconvex positive light coke, the 3rd lens and the 4th lens are bonding by optical cement; The focal length of the six-element lens of this camera lens, refractive index reach the radius-of-curvature of totally ten two curved surfaces and meet the following conditions respectively:
| 19.421≤f1≤20.338 | 1.79≤n1≤1.87 | 11.51≤R1≤12.33 | 33.565≤R2≤34.881 |
| -5.12≤f2≤-5.95 | 1.71≤n2≤1.77 | 200≤R3≤300 | 3.55≤R4≤4.32 |
| 4.85≤f3≤5.32 | 1.65≤n3≤1.72 | 14.987≤R5≤15.953 | -3.421≤R6≤-4.435 |
| -4.35≤f4≤-5.41 | 1.62≤n4≤1.67 | -3.421≤R7≤-4.435 | 13.12≤R8≤14.23 |
| 12.37≤f5≤13.45 | 1.65≤n5≤1.72 | -80≤R9≤-110 | -8.01≤R10≤-9.22 |
| 12.21≤f6≤13.19 | 1.63≤n6≤1.69 | 10.57≤R11≤11.85 | -25.565≤R12≤-26.875 |
In upper table, " f " is focal length, and " n " is refractive index, and " R " is radius-of-curvature, and "-" number means that direction is for negative.
Further, described first lens and the second lens are by the spacer ring close-fitting, and the axial spacing at optical axis place is 3.112mm; The second lens and the 3rd lens are by the spacer ring close-fitting, and the axial spacing at optical axis place is 3.917mm; The 4th lens and the 5th lens are directly near assembling, and the axial spacing at optical axis place is 0.45mm; The 5th lens and the 6th lens are by the spacer ring close-fitting, and the axial spacing at optical axis place is 0.1mm.
A kind of 8mm of the utility model large aperture day and night tight shot is just adopting, negative, just, negative, just, positive 5 group of 6 slice structure, simple in structure.Reasonably distribute focal power to make the camera lens volume compact, and reduced the tolerance susceptibility, promoted the assembling yields.The gummed eyeglass reasonably is set and makes aberration and spherical aberration be revised, image quality promotes greatly, can meet the demand of high definition fully; Realize the F1.4 large aperture by reasonable use glass combination, image quality is good, and makes infrared not out of focus, even also can realize clear bright picture at night under low-light (level).
The accompanying drawing explanation
The assembly drawing of each lens that Fig. 1 is 8mm of the present utility model large aperture day and night tight shot.
The optical system diagram of the 8mm large aperture day and night tight shot that Fig. 2 is Fig. 1.
Embodiment
For the technical solution of the utility model can more clearly be showed, below in conjunction with accompanying drawing, the utility model is described in further detail.
With reference to a kind of 8mm large aperture day and night tight shot shown in figure 1 and Fig. 2, comprise first lens L1, the second lens L2 of convex-concave negative power, the 3rd lens L3 of biconvex positive light coke, the 4th lens L4 of concave-concave negative power, the 5th lens L5 of concavo-convex positive light coke, the 6th lens L6 of biconvex positive light coke of the convex-concave positive light coke set gradually along the light incident direction.First lens L1 and the second lens L2 are by the spacer ring close-fitting, and the axial spacing at optical axis place is 3.112mm; The second lens L2 and the 3rd saturating L3 mirror are by the spacer ring close-fitting, and the axial spacing at optical axis place is 3.917mm; The 3rd lens L3 and the 4th lens L4 are bonding by optical cement; The 4th lens L4 and the 5th lens L5 are directly near assembling, and the axial spacing at optical axis place is 0.45mm; The 5th lens and the 6th lens are by the spacer ring close-fitting, and the axial spacing at optical axis place is 0.1mm.
The focal length of the six-element lens of this camera lens, refractive index reach the radius-of-curvature of totally ten two curved surfaces and meet the following conditions respectively:
| 19.421≤f1≤20.338 | 1.79≤n1≤1.87 | 11.51≤R1≤12.33 | 33.565≤R2≤34.881 |
| -5.12≤f2≤-5.95 | 1.71≤n2≤1.77 | 200≤R3≤300 | 3.55≤R4≤4.32 |
| 4.85≤f3≤5.32 | 1.65≤n3≤1.72 | 14.987≤R5≤15.953 | -3.421≤R6≤-4.435 |
| -4.35≤f4≤-5.41 | 1.62≤n4≤1.67 | -3.421≤R7≤-4.435 | 13.12≤R8≤14.23 |
| 12.37≤f5≤13.45 | 1.65≤n5≤1.72 | -80≤R9≤-110 | -8.01≤R10≤-9.22 |
| 12.21≤f6≤13.19 | 1.63≤n6≤1.69 | 10.57≤R11≤11.85 | -25.565≤R12≤-26.875 |
In upper table, " f " is focal length, and " n " is refractive index, and " R " is radius-of-curvature, and "-" number means that direction is for negative.
This 8mm large aperture day and night tight shot is just adopting, negative, just, negative, just, positive 5 group of 6 slice structure, simple in structure.Reasonably distribute focal power to make the camera lens volume compact, and reduced the tolerance susceptibility, promoted the assembling yields.The gummed eyeglass reasonably is set and makes aberration and spherical aberration be revised, image quality promotes greatly, can meet the demand of high definition fully; Realize the F1.4 large aperture by reasonable use glass combination, image quality is good, and makes infrared not out of focus, even also can realize clear bright picture at night under low-light (level).
Above embodiment just is explanation rather than restriction the utility model, and the equivalence of doing according to the described method of the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.
Claims (2)
1. a 8mm large aperture day and night tight shot, it is characterized in that: comprise the first lens of the convex-concave positive light coke set gradually along the light incident direction, the second lens of convex-concave negative power, the 3rd lens of biconvex positive light coke, the 4th lens of concave-concave negative power, the 5th lens of concavo-convex positive light coke, the 6th lens of biconvex positive light coke, the 3rd lens and the 4th lens are bonding by optical cement; The focal length of the six-element lens of this camera lens, refractive index reach the radius-of-curvature of totally ten two curved surfaces and meet the following conditions respectively:
In upper table, " f " is focal length, and " n " is refractive index, and " R " is radius-of-curvature, and "-" number means that direction is for negative.
2. a kind of 8mm according to claim 1 large aperture day and night tight shot is characterized in that: described first lens and the second lens are by the spacer ring close-fitting, and the axial spacing at optical axis place is 3.112mm; The second lens and the 3rd lens are by the spacer ring close-fitting, and the axial spacing at optical axis place is 3.917mm; The 4th lens and the 5th lens are directly near assembling, and the axial spacing at optical axis place is 0.45mm; The 5th lens and the 6th lens are by the spacer ring close-fitting, and the axial spacing at optical axis place is 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320382024.9U CN203350521U (en) | 2013-06-28 | 2013-06-28 | 8mm wide-aperture day and night fixed focal lenses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320382024.9U CN203350521U (en) | 2013-06-28 | 2013-06-28 | 8mm wide-aperture day and night fixed focal lenses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203350521U true CN203350521U (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320382024.9U Expired - Lifetime CN203350521U (en) | 2013-06-28 | 2013-06-28 | 8mm wide-aperture day and night fixed focal lenses |
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| CN (1) | CN203350521U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155741A (en) * | 2014-08-21 | 2014-11-19 | 福建福光数码科技有限公司 | Economical high resolution day and night fixed focus lens |
| CN104280860A (en) * | 2014-09-18 | 2015-01-14 | 利达光电股份有限公司 | High-resolution camera lens |
| CN104898257A (en) * | 2015-03-11 | 2015-09-09 | 瑞声声学科技(深圳)有限公司 | Camera lens system |
| CN109975950A (en) * | 2017-12-27 | 2019-07-05 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN113031190A (en) * | 2021-03-10 | 2021-06-25 | 协益电子（苏州）有限公司 | Vehicle-mounted monitoring optical lens |
| CN114911026A (en) * | 2021-02-08 | 2022-08-16 | 信泰光学(深圳)有限公司 | Imaging lens |
-
2013
- 2013-06-28 CN CN201320382024.9U patent/CN203350521U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155741A (en) * | 2014-08-21 | 2014-11-19 | 福建福光数码科技有限公司 | Economical high resolution day and night fixed focus lens |
| CN104155741B (en) * | 2014-08-21 | 2016-08-24 | 福建福光股份有限公司 | High resolution day and night tight shot |
| CN104280860A (en) * | 2014-09-18 | 2015-01-14 | 利达光电股份有限公司 | High-resolution camera lens |
| CN104280860B (en) * | 2014-09-18 | 2018-12-14 | 利达光电股份有限公司 | A kind of high-resolution pick-up lens |
| CN104898257A (en) * | 2015-03-11 | 2015-09-09 | 瑞声声学科技(深圳)有限公司 | Camera lens system |
| CN104898257B (en) * | 2015-03-11 | 2017-07-18 | 瑞声声学科技(深圳)有限公司 | Taking lens system |
| CN109975950A (en) * | 2017-12-27 | 2019-07-05 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN109975950B (en) * | 2017-12-27 | 2021-06-04 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN114911026A (en) * | 2021-02-08 | 2022-08-16 | 信泰光学(深圳)有限公司 | Imaging lens |
| CN114911026B (en) * | 2021-02-08 | 2024-01-19 | 信泰光学(深圳)有限公司 | Imaging lens |
| CN113031190A (en) * | 2021-03-10 | 2021-06-25 | 协益电子（苏州）有限公司 | Vehicle-mounted monitoring optical lens |
| CN113031190B (en) * | 2021-03-10 | 2023-11-10 | 协益电子（苏州）有限公司 | Vehicle-mounted monitoring optical lens |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG YUTONG OPTICAL CO., LTD. Free format text: FORMER OWNER: DONGGUAN YUTONG OPTICAL TECHNOLOGY CO., LTD. Effective date: 20140709 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140709 Address after: Changan town in Guangdong province Dongguan 523000 usha Ring Road No. 306 Long Yu Kai Dong Industrial Zone D Patentee after: GUANGDONG YUTONG OPTICAL Co.,Ltd. Address before: Changan town in Guangdong province Dongguan 523000 usha Ring Road No. 306 Long Yu Kai Dong Industrial Zone D Patentee before: DONGGUAN YUTONG OPTICAL TECHNOLOGY Co.,Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN YUTONG OPTICAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: GUANGDONG YUTONG OPTICAL CO., LTD. Effective date: 20141104 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141104 Address after: 523000, Changan, Dongguan Town, Guangdong province Xin'an community Tian Tian Road Hengtai Industrial Zone No. 168 Patentee after: DONGGUAN YUTONG OPTICAL TECHNOLOGY Co.,Ltd. Address before: Changan town in Guangdong province Dongguan 523000 usha Ring Road No. 306 Long Yu Kai Dong Industrial Zone D Patentee before: GUANGDONG YUTONG OPTICAL Co.,Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Changan town in Guangdong province Dongguan 523000 usha Ring Road No. 306 Long Yu Kai Dong Industrial Zone D Patentee after: DONGGUAN YUTONG OPTICAL TECHNOLOGY Co.,Ltd. Address before: 523000, Changan, Dongguan Town, Guangdong province Xin'an community Tian Tian Road Hengtai Industrial Zone No. 168 Patentee before: DONGGUAN YUTONG OPTICAL TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |
|
| CX01 | Expiry of patent term |