CN103605201A - High resolution optical camera lens - Google Patents
High resolution optical camera lens Download PDFInfo
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- CN103605201A CN103605201A CN201310584281.5A CN201310584281A CN103605201A CN 103605201 A CN103605201 A CN 103605201A CN 201310584281 A CN201310584281 A CN 201310584281A CN 103605201 A CN103605201 A CN 103605201A
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Abstract
The invention discloses a high resolution optical camera lens applied to the fields of a network camera and monitoring. The high resolution optical camera lens sequentially comprises a first lens having a negative focal power meniscus lens, a second lens having a negative focal power bi-concave or plano-concave lens, a third lens having a positive focal power bi-convex lens, a diaphragm, a fourth lens having a negative focal power bi-concave lens, a fifth lens having a positive focal power bi-convex lens and a sixth lens having a positive focal power bi-convex lens from an object side to an image side, wherein the fourth lens and the fifth lens are positive focal power glued lens sets, the fourth lens employs high refractive index and low dispersion glass, a high refractive index Nd of the fourth lens is greater than 1.75, a dispersion coefficient Vd is smaller than 28, the fifth lens L5 employs high dispersion glass, a dispersion coefficient Vd of the fifth lens is smaller than 65 and greater than 47, the Nd is a d-light refractive index of a lens material, and the Vd is a d-light Abbe constant of the lens material. Color difference can be relatively well corrected, sharpness can be effectively improved, and the sharpness of a whole system can reach 5 million pixels.
Description
Technical field
The present invention relates to a kind of optical lens, refer in particular to a kind of high-resolution optical camera lens that is applied to the fields such as web camera, monitoring.
Background technology
Along with the rapid emergence that telecommunication network in recent years faces monitoring and tradition monitoring market, significantly promoting and the development of various digital processings of network transfer speeds, significantly promotes the quality requirements of imaging.From common, see that image monitoring is to the picture catching demand of high-resolution.Just require camera lens product mass-energy to reach high resolving power requirement.
Summary of the invention
The object of this invention is to provide a kind of application that coordinates web camera, improve image definition and periphery image quality homogeneity, overcome the high-resolution optical camera lens of the low weakness of conventional lenses performance index simultaneously.
For achieving the above object, solution of the present invention is:
A high-resolution optical camera lens, it is extremely sequentially comprised as side by thing side: a first lens is the meniscus lens with negative power; One second lens are to have the concave-concave of negative power or the lens of plano-concave; One the 3rd lens are the biconvex lens with positive light coke; One diaphragm, one the 4th lens are the biconcave lenss with negative power; One the 5th lens are the biconvex lens with positive light coke; One the 6th lens are the biconvex lens with positive light coke; The 4th lens and the 5th lens are that focal power is positive balsaming lens group, the 4th lens high-refractivity and low-dispersion glass, its refractive index Nd>1.75, abbe number Vd<28, the 5th lens L5 high-dispersion glass, 65>Vd>47, wherein Nd represents the refractive index of lens material d light, Vd represents the d light Abbe constant of lens material.
Between described the 3rd lens and the 4th lens, it is aperture diaphragm.
Described first lens meets the following conditions: Nd>1.55, and Vd<63, wherein Nd represents the refractive index of lens material d light, Vd represents the d light Abbe constant of lens material.
Described the second lens meet the following conditions: 1.7>Nd>1.55, wherein Nd represents the refractive index of lens material d light.
Described the 3rd lens meet the following conditions: Nd>1.70, and Vd<30, wherein Nd represents the refractive index of lens material d light, Vd represents the d light Abbe constant of lens material.
Described the 5th lens meet the following conditions: 1.75>Nd>1.60, wherein Nd represents the refractive index of lens material d light.
Described the 6th lens meet the following conditions: 1.75>Nd>1.60,65>Vd>47, wherein Nd represents the refractive index of lens material d light, and Vd represents the d light Abbe constant of lens material.
The focal range of described whole arrangement of mirrors head is between 6.0mm ~ 8.0mm.
Between described the 5th lens and the 6th lens, be provided with vignetting stop.
Adopt after such scheme, feature of the present invention is as follows:
Because camera lens of the present invention the 4th lens and the 5th lens are balsaming lens groups, the 4th lens high-refractivity and low-dispersion glass, its refractive index Nd>1.75, abbe number Vd<28, the 5th lens L5 high-dispersion glass, 65>Vd>47, better calibration aberration, can effectively promote clearness, make the sharpness of whole system can reach 5 mega pixels.
And in space between the 5th lens and the 6th lens, vignetting stop is set, can effectively stop the impact of parasitic light on system.
Lens design image height of the present invention is 7.50mm, can be well for 1/2.5 " video camera of 5MegaPixel.Can be used for simultaneously low side a little 1/2.7 " 2MegaPixel and 1/3 " video camera of 3MegaPixel.
Accompanying drawing explanation
Fig. 1 is optical system schematic diagram of the present invention;
Fig. 2 is optical system chromatic curve figure of the present invention;
Fig. 3 is optical system distortion curve figure of the present invention;
Fig. 4 is optical system MTF curve map of the present invention.
Embodiment
Below in conjunction with accompanying drawing, explain embodiments of the present invention:
As shown in Figures 1 to 4, the present invention has disclosed a kind of high-resolution optical camera lens, and this camera lens is extremely sequentially comprised as side by thing side: a first lens L1 is the meniscus lens with negative power; One second lens L2 is to have the concave-concave of negative power or the lens of plano-concave; One the 3rd lens L3 is the biconvex lens with positive light coke; One diaphragm 7, one the 4th lens L4 are the biconcave lenss with negative power; One the 5th lens L5 is the biconvex lens with positive light coke; One the 6th lens L5 is the biconvex lens with positive light coke; The 4th lens L4 and the 5th lens L5 are that focal power is positive balsaming lens group, the 4th lens L4 high-refractivity and low-dispersion glass, its refractive index Nd>1.75, abbe number Vd<28, the 5th lens L5 high-dispersion glass, 65>Vd>47.
Described first lens L1 meets the following conditions: Nd>1.55, Vd<63; Second lens L2 meets the following conditions: 1.7>Nd>1.55; The 3rd lens L3 meets the following conditions: Nd>1.70, Vd<30; The 5th lens L5 meets the following conditions: 1.75>Nd>1.60; The 6th lens L6 meets the following conditions: 1.75>Nd>1.60,65>Vd>47; The focal range of whole arrangement of mirrors head is between 6.0mm ~ 8.0mm.
Wherein Nd represents the refractive index of lens material d light, and Vd represents the d light Abbe constant of lens material.
And diaphragm between described the 3rd lens L3 and the 4th lens L4 is aperture diaphragm.
Further, between the 5th lens L5 and the 6th lens L6, be provided with vignetting stop 8, can effectively stop the impact of parasitic light on system.
Because the 4th saturating L4 and the 5th lens L5 are balsaming lens groups, the 4th lens L4 high-refractivity and low-dispersion glass, its refractive index Nd>1.75, abbe number Vd<28, the 5th lens L5 high-dispersion glass, 65>Vd>47, better calibration aberration, can effectively promote clearness, make the sharpness of whole system can reach 5 mega pixels.
The present embodiment f=8.0 lens parameters table is as follows:
| Face sequence number | Radius-of-curvature | Center thickness | Refractive index Nd | Abbe number Vd | |
| 1 | 5.591836 | 2.03 | 1.70 | 56.2 | 8.36 |
| 2 | 3.310196 | 3.86 | 5.73 | ||
| 3 | -25.77357 | 0.60 | 1.59 | 61.2 | 4.42 |
| 4 | 5.381746 | 0.20 | 4.08 | ||
| 5 | 6.625025 | 1.40 | 1.85 | 23.8 | 4.08 |
| 6 | -19.68596 | 0.01 | 3.78 | ||
| Diaphragm | Infinity | 1.054 | 3.70 | ||
| 8 | -13.83783 | 0.66 | 1.92 | 18.9 | 3.80 |
| 9 | 8.407386 | 3.00 | 1.70 | 56.2 | 4.05 |
| 10 | -5.934336 | 1.80 | 5.00 | ||
| 11 | 14.82904 | 1.44 | 1.70 | 56.2 | 6.54 |
| 12 | -71.0128 | 6.37 | 6.62 | ||
| 13 | Infinity | 0.70 | 1.51 | 64.2 | 7.20 |
| 14 | Infinity | 2.85 | 7.25 | ||
| Image planes | Infinity | 7.50 | |||
Face sequence number wherein: 1-2 is first lens L1; 3-4 is the second lens L2;
5-6 is the 3rd lens L3; 8-9 is the 4th lens L4;
9-10 is the 5th lens L5; 11-12 is the 6th lens L6;
13-14 is cover glass (seeing the label 9 of Fig. 1);
Image planes (seeing the label 10 of Fig. 1).
Therefore, this lens design image height is 7.50mm, can be well for 1/2.5 " video camera of 5MegaPixel.Can be used for simultaneously low side a little 1/2.7 " 2MegaPixel and 1/3 " video camera of 3MegaPixel.
Claims (9)
1. a high-resolution optical camera lens, is characterized in that: it is extremely sequentially comprised as side by thing side: a first lens is the meniscus lens with negative power; One second lens are to have the concave-concave of negative power or the lens of plano-concave; One the 3rd lens are the biconvex lens with positive light coke; One diaphragm, one the 4th lens are the biconcave lenss with negative power; One the 5th lens are the biconvex lens with positive light coke; One the 6th lens are the biconvex lens with positive light coke; The 4th lens and the 5th lens are that focal power is positive balsaming lens group, the 4th lens high-refractivity and low-dispersion glass, its refractive index Nd>1.75, abbe number Vd<28, the 5th lens L5 high-dispersion glass, 65>Vd>47, wherein Nd represents the refractive index of lens material d light, Vd represents the d light Abbe constant of lens material.
2. high-resolution optical camera lens as claimed in claim 1, is characterized in that: between described the 3rd lens and the 4th lens, be aperture diaphragm.
3. high-resolution optical camera lens as claimed in claim 1, it is characterized in that: first lens meets the following conditions: Nd>1.55, Vd<63, wherein Nd represents the refractive index of lens material d light, Vd represents the d light Abbe constant of lens material.
4. high-resolution optical camera lens as claimed in claim 1, is characterized in that: the second lens meet the following conditions: 1.7>Nd>1.55, wherein Nd represents the refractive index of lens material d light.
5. high-resolution optical camera lens as claimed in claim 1, it is characterized in that: the 3rd lens meet the following conditions: Nd>1.70, Vd<30, wherein Nd represents the refractive index of lens material d light, Vd represents the d light Abbe constant of lens material.
6. high-resolution optical camera lens as claimed in claim 1, is characterized in that: the 5th lens meet the following conditions: 1.75>Nd>1.60, wherein Nd represents the refractive index of lens material d light.
7. high-resolution optical camera lens as claimed in claim 1, it is characterized in that: the 6th lens meet the following conditions: 1.75>Nd>1.60,65>Vd>47, wherein Nd represents the refractive index of lens material d light, and Vd represents the d light Abbe constant of lens material.
8. high-resolution optical camera lens as claimed in claim 1, is characterized in that: the focal range of whole arrangement of mirrors head is between 6.0mm ~ 8.0mm.
9. high-resolution optical camera lens as claimed in claim 1, is characterized in that: between the 5th lens and the 6th lens, be provided with vignetting stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310584281.5A CN103605201B (en) | 2013-11-20 | 2013-11-20 | Optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310584281.5A CN103605201B (en) | 2013-11-20 | 2013-11-20 | Optical lens |
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| CN103605201A true CN103605201A (en) | 2014-02-26 |
| CN103605201B CN103605201B (en) | 2016-08-17 |
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| CN201310584281.5A Active CN103605201B (en) | 2013-11-20 | 2013-11-20 | Optical lens |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170285299A1 (en) * | 2016-03-29 | 2017-10-05 | Ability Enterprise Co., Ltd. | Optical lens |
| CN107290841A (en) * | 2016-03-31 | 2017-10-24 | 佳能企业股份有限公司 | Optical lens |
| CN108663785A (en) * | 2017-04-01 | 2018-10-16 | 宁波舜宇车载光学技术有限公司 | optical lens and imaging device |
| CN110297312A (en) * | 2019-06-29 | 2019-10-01 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| JP2020112835A (en) * | 2016-10-05 | 2020-07-27 | マクセル株式会社 | Image capturing lens system and image capturing device |
| CN113219637A (en) * | 2021-03-16 | 2021-08-06 | 上海峰梅光学科技有限公司 | Vehicle-mounted ADAS wide-angle lens |
| WO2023109685A1 (en) * | 2021-12-15 | 2023-06-22 | 东莞市宇瞳汽车视觉有限公司 | Prime lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20170285299A1 (en) * | 2016-03-29 | 2017-10-05 | Ability Enterprise Co., Ltd. | Optical lens |
| US10684452B2 (en) * | 2016-03-29 | 2020-06-16 | Ability Enterprise Co., Ltd. | Optical lens system |
| CN107290841A (en) * | 2016-03-31 | 2017-10-24 | 佳能企业股份有限公司 | Optical lens |
| CN107290841B (en) * | 2016-03-31 | 2020-11-10 | 佳能企业股份有限公司 | Optical lens |
| JP2020112835A (en) * | 2016-10-05 | 2020-07-27 | マクセル株式会社 | Image capturing lens system and image capturing device |
| CN108663785A (en) * | 2017-04-01 | 2018-10-16 | 宁波舜宇车载光学技术有限公司 | optical lens and imaging device |
| CN108663785B (en) * | 2017-04-01 | 2022-03-04 | 宁波舜宇车载光学技术有限公司 | Optical lens and imaging apparatus |
| CN110297312A (en) * | 2019-06-29 | 2019-10-01 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN110297312B (en) * | 2019-06-29 | 2021-04-06 | 瑞声光学解决方案私人有限公司 | Image pickup optical lens |
| CN113219637A (en) * | 2021-03-16 | 2021-08-06 | 上海峰梅光学科技有限公司 | Vehicle-mounted ADAS wide-angle lens |
| CN113219637B (en) * | 2021-03-16 | 2023-03-14 | 上海峰梅光学科技有限公司 | Vehicle-mounted ADAS wide-angle lens |
| WO2023109685A1 (en) * | 2021-12-15 | 2023-06-22 | 东莞市宇瞳汽车视觉有限公司 | Prime lens |
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| CN103605201B (en) | 2016-08-17 |
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