CN204613498U - Small-sized wide-angle lens - Google Patents
Small-sized wide-angle lens Download PDFInfo
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- CN204613498U CN204613498U CN201520282343.1U CN201520282343U CN204613498U CN 204613498 U CN204613498 U CN 204613498U CN 201520282343 U CN201520282343 U CN 201520282343U CN 204613498 U CN204613498 U CN 204613498U
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
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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
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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
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The utility model provides a kind of small-sized wide-angle lens, it is characterized in that, is followed successively by from object space side to image space side: have the first lens combination of negative focal length, diaphragm, second lens combination with positive focal length, optical filter and cover glass; First lens combination comprises first lens with negative power, second lens with negative power and has the 3rd lens of positive light coke; Second lens combination is made up of the 4th lens, the 5th lens and the 6th lens, and have positive light coke after the 4th lens and the 5th lens gummed, the 6th lens have positive light coke.Native system adopts six full glass lens structures, compact conformation, has good processing technology, production cost low.Invention achieves more than 130 degree, horizontal view angle, optics overall length (TTL) is than similar camera lens is little by about 30% on the market, not only can based on the wide-angle on-vehicle lens of type, and the feature of miniaturization makes it can broadly be arranged in all kinds of home equipment.
Description
(1) technical field
The present invention relates to wide-angle lens technical field, particularly small-sized wide-angle lens.
(2) background technology
Optical lens instead people's eyes visual information receive organ, be widely used in every field.When device for image application with some specific area in time, wide-angle lens can be needed to increase visual field.Wide-angle lens is the significant components of some Large visual angle projects, as supervising device, vehicle-mounted wide angle imaging system.Meanwhile, the development of imaging detector technology, substantially increases resolution and the pixel quantity of detector.The distortion of the image quality of camera lens, the size of visual field and camera lens determines the quality of wide-angle lens, and thus the performance of camera lens and visual field become the significant consideration of design wide-angle lens.
The wide-angle lens of current known technology, most employing pre-group lens are negative power, rear group's lens are the framework of positive light coke, improve the visual angle of wide-angle lens whereby.But the aberration of this type of wide-angle lens, image resolution ratio and variation of ambient temperature still have problems such as the impacts of optical property manyly improves space.In order to ensure image quality and the high brightness of high-resolution camera, reach enough field angle, digital imaging system often needs the quantity increasing lens simultaneously; Or adopt the method for non-spherical lens to carry out aberration correction, improve image quality with this, but this product length does not reach compact requirement far away, and the production cost of camera lens is higher.At present this class is applicable to 1/3 " wide-angle lens of inch size, stock size is all comparatively large, and length is at about 23mm.Optical lens, as the access port of various smart machine, is more and more used in various smart machine, but lacks a wide-angle lens of miniaturization having high definition, Large visual angle angle concurrently in the market.
Therefore, be necessary to provide a kind of miniaturization, high imaging quality, wide-angle, cost low simultaneously to the insensitive wide-angle lens of variation of ambient temperature.
(3) summary of the invention
The present invention will overcome the above-mentioned shortcoming of prior art, provides a kind of small-sized wide-angle lens, has image quality high, and field angle is large, and volume is little, low cost of manufacture, to advantages such as variation of ambient temperature are insensitive.
To achieve these goals, the technical solution used in the present invention is:
A kind of small-sized wide-angle lens, is characterized in that, be followed successively by from the object side to image side: have the first lens combination of negative focal length, diaphragm, second lens combination with positive focal length, optical filter and cover glass; First lens combination comprises first lens with negative power, second lens with negative power and has the 3rd lens of positive light coke; Second lens combination is made up of the 4th lens, the 5th lens and the 6th lens, and wherein have positive light coke after the 4th lens and the 5th lens gummed, the 6th lens have positive light coke.
Above-mentioned small-sized wide-angle lens, is characterized in that: described small-sized wide-angle lens meets following condition: 1.0<|D/f
1| <5.0.Wherein D be the thing side surface of this small-sized wide-angle lens first spherical lens to imaging surface along the distance on optical axis direction, f
1for the effective focal length of this small-sized wide-angle lens first camera lens combination.
Above-mentioned small-sized wide-angle lens, is characterized in that: described small-sized wide-angle lens meets following condition: 2.0<|D/f
2| <6.0.Wherein D be the thing side surface of this small-sized wide-angle lens first spherical lens to imaging surface along the distance on optical axis direction, f
2for the effective focal length of this small-sized wide-angle lens second camera lens combination.
Above-mentioned small-sized wide-angle lens, is characterized in that, the first described lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens all adopt glass material to make.
Above-mentioned small-sized wide-angle lens, is characterized in that: between the 3rd lens and the 4th lens, be provided with diaphragm.
Above-mentioned small-sized wide-angle lens, is characterized in that: this small-sized wide-angle lens all surface is sphere;
Above-mentioned small-sized wide-angle lens, is characterized in that: described 4th spherical lens comprises one the 4th picture end surfaces, and described 5th lens comprise a 5th thing end surfaces, and described 4th picture end surfaces and described 5th thing end surfaces glue together fixing.
Compared with conventional art, the utility model, at G3, between 4 eyeglasses, eliminates spaced ring, and uses code-locked sheet instead, by similar approach, the utility model has the advantages that: effectively ensure that miniaturization.All have employed glass mirror, insensitive to variation of ambient temperature, can be applicable in the environment of temperature-10 DEG C to 85 DEG C.Can be applied in various smart machine based on this utility model model.
(4) accompanying drawing explanation
Fig. 1 is the structural representation of small-sized wide-angle lens embodiment 1 provided by the invention;
Fig. 2 is the spherical aberration figure of embodiment 1;
Fig. 3 is the curvature of field figure of embodiment 1;
Fig. 4 is the distortion figure of embodiment 1;
Fig. 5 is the optical transfer function curve of embodiment 1;
(5) embodiment
Embodiment 1:
In embodiment 1, as shown in Figure 1, the present invention is made up of six-element lens, is followed successively by the first lens E1, the second lens E2, the 3rd lens E3, diaphragm, the 4th lens E4, the 5th lens E5, the 6th lens E6, optical filter E7 and cover glass E8 from object space to image space.From object space to image space, two faces of described first lens E1 are respectively S1, S2; Two faces of the second lens E2 are respectively S3, S4; Two faces of the 3rd lens E3 are respectively S5, S6; Diaphragm face is S7; Three faces after 4th lens E4 and the 5th lens E5 glues together are S8, S9, S10; Two faces of the 6th lens E6 are respectively S11, S12; Two faces of optical filter E7 are respectively S13, S14; Two faces of cover glass E8 are respectively S15, S16.
Embodiment 1 meets the condition of table 1:
Table 1
Embodiment 1 lens construction parameter
The small-sized wide-angle lens of the present embodiment, its spherical aberration figure, curvature of field figure, by figure, distortion figure, optical transfer function figure, respectively as shown in Fig. 2 to Fig. 5, can find out that the present invention has good optical property.
It should be noted that; although describe principle of the present invention and embodiment for small-sized wide-angle lens above; but under above-mentioned instruction of the present invention; those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improve or distortion all drops in protection scope of the present invention.It will be understood by those skilled in the art that specific descriptions are above to explain object of the present invention, and not for limiting the present invention, protection scope of the present invention is by claim and equivalents thereof.
Claims (8)
1. a small-sized wide-angle lens, is characterized in that, is followed successively by from the object side to image side: have the first lens combination of negative focal length, diaphragm, have the second lens combination, the optical filter of positive focal length; First lens combination comprises first lens with negative power, second lens with negative power and has the 3rd lens of positive light coke; Second lens combination is made up of the 4th lens, the 5th lens and the 6th lens, and wherein have positive light coke after the 4th lens and the 5th lens gummed, the 6th lens have positive light coke.
2. small-sized wide-angle lens according to claim 1, is characterized in that, described camera lens meets following condition: 1.0<|D/f
1| <5.0, wherein D be the thing side surface of this small-sized wide-angle lens first spherical lens to imaging surface along the distance on optical axis direction, f
1for the effective focal length of this small-sized wide-angle lens first camera lens combination.
3. small-sized wide-angle lens according to claim 1, is characterized in that, described camera lens meets following condition: 2.0<|D/f
2| <6.5, wherein D be the thing side surface of this small-sized wide-angle lens first spherical lens to imaging surface along the distance on optical axis direction, f
2for the effective focal length of this small-sized wide-angle lens second camera lens combination.
4. small-sized wide-angle lens according to claim 1, is characterized in that: described lens all adopt glass material to make.
5. small-sized wide-angle lens according to claim 1, is characterized in that: between the 3rd lens and the 4th lens, be provided with diaphragm.
6. small-sized wide-angle lens according to claim 1, is characterized in that: this camera lens all surface is sphere;
7. small-sized wide-angle lens according to claim 1, it is characterized in that: described 4th spherical lens comprises one the 4th picture end surfaces, described 5th lens comprise a 5th thing end surfaces, and described 4th picture end surfaces and described 5th thing end surfaces glue together fixing.
8. small-sized wide-angle lens according to claim 7, is characterized in that: the 4th described lens are refractive index high-dispersion glass, and its Abbe number Vd<26; The 5th described lens are low dispersion.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520282343.1U CN204613498U (en) | 2015-05-04 | 2015-05-04 | Small-sized wide-angle lens |
| PCT/CN2015/083707 WO2016176911A1 (en) | 2015-05-04 | 2015-07-10 | Small-size wide-angle camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520282343.1U CN204613498U (en) | 2015-05-04 | 2015-05-04 | Small-sized wide-angle lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204613498U true CN204613498U (en) | 2015-09-02 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520282343.1U Active CN204613498U (en) | 2015-05-04 | 2015-05-04 | Small-sized wide-angle lens |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204613498U (en) |
| WO (1) | WO2016176911A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109788089A (en) * | 2018-10-16 | 2019-05-21 | 华为技术有限公司 | The method and terminal of microspur imaging |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI600940B (en) * | 2017-03-01 | 2017-10-01 | 大立光電股份有限公司 | Optical imaging lens system, image capturing unit and electronic device |
| CN107045183B (en) * | 2017-05-26 | 2023-05-16 | 东莞市宇瞳光学科技股份有限公司 | Athermalized wide working distance 6MP machine vision lens |
| CN107102429B (en) * | 2017-05-26 | 2023-05-19 | 东莞市宇瞳光学科技股份有限公司 | Industrial lens with optical compensation function |
| CN107065153B (en) * | 2017-05-26 | 2023-05-16 | 东莞市宇瞳光学科技股份有限公司 | Visual lens of wide-angle high-definition machine |
| CN107608058B (en) * | 2017-11-08 | 2023-04-28 | 广东弘景光电科技股份有限公司 | Low distortion wide angle optical system |
| CN109407279B (en) * | 2018-12-12 | 2021-09-14 | 江西联创电子有限公司 | Wide-angle lens and imaging apparatus |
| CN110441889B (en) * | 2019-09-12 | 2024-06-18 | 舜宇光学(中山)有限公司 | Fixed focus lens |
| CN111458839B (en) * | 2020-04-21 | 2024-05-31 | 中国科学院西安光学精密机械研究所 | Large-view-field low-distortion lens |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4083924B2 (en) * | 1999-06-09 | 2008-04-30 | オリンパス株式会社 | Wide angle lens |
| CN101359087B (en) * | 2007-08-02 | 2010-06-02 | 鸿富锦精密工业（深圳）有限公司 | Wide-angle lens and vehicle apparatus using the wide-angle lens |
| JP5045300B2 (en) * | 2007-08-07 | 2012-10-10 | 株式会社ニコン | Wide-angle lens and imaging device having the wide-angle lens |
| CN101930111A (en) * | 2009-06-20 | 2010-12-29 | 凤凰光学(广东)有限公司 | Wide-angle lens |
| CN103439782B (en) * | 2013-08-15 | 2015-08-12 | 福建福光数码科技有限公司 | 2.8 focus bugeye lens |
| CN103499874B (en) * | 2013-10-29 | 2015-11-18 | 姚学文 | A kind of bugeye lens |
-
2015
- 2015-05-04 CN CN201520282343.1U patent/CN204613498U/en active Active
- 2015-07-10 WO PCT/CN2015/083707 patent/WO2016176911A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109788089A (en) * | 2018-10-16 | 2019-05-21 | 华为技术有限公司 | The method and terminal of microspur imaging |
| US11405538B2 (en) | 2018-10-16 | 2022-08-02 | Huawei Technologies Co., Ltd. | Macro imaging method and terminal |
| US11683574B2 (en) | 2018-10-16 | 2023-06-20 | Huawei Technologies Co., Ltd. | Macro imaging method and terminal |
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| WO2016176911A1 (en) | 2016-11-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: The big thang-kng small-sized wide-angle lens of 2.8mm Effective date of registration: 20170913 Granted publication date: 20150902 Pledgee: Agricultural Bank of China Limited by Share Ltd Jiaxing science and Technology Branch Pledgor: Jiaxing Zhongrun Optical Science and Technology Co., Ltd. Registration number: 2017330000101 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201210 Granted publication date: 20150902 Pledgee: Agricultural Bank of China Limited by Share Ltd. Jiaxing science and Technology Branch Pledgor: JIAXING ZHONGRUN OPTICAL SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: 2017330000101 |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 314000 No.188, Taojing Road, Gaozhao street, Xiuzhou District, Jiaxing City, Zhejiang Province Patentee after: Jiaxing Zhongrun Optical Technology Co.,Ltd. Address before: 314000 No. 383 Rende Road, Xiuzhou District, Jiaxing City, Zhejiang Province Patentee before: JIAXING ZHONGRUN OPTICAL SCIENCE AND TECHNOLOGY Co.,Ltd. |