CN104090349B - High resolution day and night CS interface tight shot - Google Patents
High resolution day and night CS interface tight shot Download PDFInfo
- Publication number
- CN104090349B CN104090349B CN201410335285.4A CN201410335285A CN104090349B CN 104090349 B CN104090349 B CN 104090349B CN 201410335285 A CN201410335285 A CN 201410335285A CN 104090349 B CN104090349 B CN 104090349B
- Authority
- CN
- China
- Prior art keywords
- lens
- group
- interface
- night
- biconvex lens
- 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 present invention relates to a kind of high resolution day and night CS interface tight shot, the frame for movement of described camera lens adopts CS interface; It is that front group of A and the focal power of bearing is rear group of positive B that the optical system of described camera lens is provided with focal power successively along light incident direction, and described front group of A is provided with negative selenodont lens A-1 and biconcave lens A-2, the focal distance f of described front group of A successivelyA=-8.66mm, the gummed group that described rear group of B is provided with successively biconvex lens B-1 and connected airtight by biconvex lens B-2 and biconcave lens B-3, the focal distance f of described rear group of BB=6.92mm. This camera lens has adopted CS interface, meet the demand of client to CS interface, and reasonable distribution the focal power of front group of A and rear group of B, there is low distortion, object lens of large relative aperture, wide spectrum is confocal, resolution ratio is better than the advantages such as 3,000,000 pixels, is the main product of micro-television monitored video camera system.
Description
Technical field
The present invention relates to a kind of optical pick-up apparatus of video technique, particularly a kind of high resolution day and night CS interface tight shot.
Background technology
The appearance of micro television CCTV camera and the application history of existing 20～30 years, have the micro pick-up lens of varied specifications and models supporting with it. Their performance indications are very different, and great majority belong to low grade products, and performance indications are low, only adapt to the common camera of 20～300,000 pixels; The spectral region adapting to is narrow, can only under light condition, use in the daytime of 480nm～700nm; Pattern distortion amount is large, and pattern distortion and the poor change of visions of reality picture are large, and authenticity is poor.
Summary of the invention
In order to adapt to the development of fine definition of miniature video camera, promote the image quality of miniature video camera system, improve the authenticity of picture, expand the range of application of miniature camera system, overcome low this defect of micro pick-up lens prior art performance indications, the object of the invention is to provides that a kind of low distortion, object lens of large relative aperture, wide spectrum are confocal, resolution ratio is better than 3,000,000 pixels, adopts the high resolution day and night CS interface tight shot of CS interface for miniature video camera system.
To achieve these goals, technical scheme of the present invention is: a kind of high resolution day and night CS interface tight shot, and the frame for movement of described camera lens adopts CS interface; It is that front group of A and the focal power of bearing is rear group of positive B that the optical system of described camera lens is provided with focal power successively along light incident direction, and described front group of A is provided with negative selenodont lens A-1 and biconcave lens A-2, the focal distance f of described front group of A successivelyA=-8.66mm, the gummed group that described rear group of B is provided with successively biconvex lens B-1 and connected airtight by biconvex lens B-2 and biconcave lens B-3, the focal distance f of described rear group of BB=6.92mm。
In further technical scheme, airspace between described front group of A and rear group of B is 4.8 ~ 4.90mm, airspace between negative selenodont lens A-1 and biconcave lens A-2 in described front group of A is 0.31 ~ 0.38mm, and the biconvex lens B-1 in described rear group of B and the airspace between gummed group are 0.1 ~ 0.12mm.
In further technical scheme, the thickness of described negative selenodont lens A-1 is 1.50mm, and the thickness of described biconcave lens A-2 is 1.35mm, and the thickness of described biconvex lens B-1 is 2.05mm, the thickness of described biconvex lens B-2 is 3.8mm, and the thickness of described biconcave lens B-3 is 3.9mm.
In further technical scheme, described negative selenodont lens A-1 and biconcave lens A-2 all adopt the optical glass material of high refraction, low dispersion.
In further technical scheme, the frame for movement of described camera lens comprises main cylinder and Connection Block, described optical system is arranged in main cylinder and is fastened by the trim ring of front end, described trim ring front end lateral wall is threaded and is withstood by jackscrew with main cylinder, between described biconcave lens A-2 and biconvex lens B-1, be provided with the first spacer ring, between described biconvex lens B-1 and biconvex lens B-2, be provided with the second spacer ring, described Connection Block front end side wall lock onto the limited ring groove on main cylinder by locking nail, described Connection Block rear inside wall is connected with thick bamboo tube rear end lateral wall clearance thread, described Connection Block rear end lateral wall is provided with CS interface, described Connection Block front end side wall is provided with the banking pin that the limited ring groove on main cylinder matches.
Compared with prior art, the present invention has the following advantages:
(1) the retrofocus type structure that adopts positive negative power to separate, the focal distance f of front group of AA=-8.66mm, the focal distance f of rear group of BB=6.92mm, after two constituent element combinations, makes the posterior principal point reach of camera lens, and the rear cut-off distance of camera lens reaches 7.5mm.
(2) the negative selenodont lens A-1 of front group of A and biconcave lens A-2 select the glass of high index of refraction, bear very large focal power, make the skew ray of wide-angle, after front group, " convergence ", reduces with the slanted angle of optical axis fast, through after organize after B refraction, the angle of chief ray and optical axis reduces, and makes camera lens realize good aberration correction, and makes the uniform-illumination of image planes.
(3) at rear group of camera lens biconvex lens B-2 that places drum type, effectively utilize it and come the aberration of corrective lens, make the resolution ratio of camera lens up to 3,000,000 pixels.
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Brief description of the drawings
Fig. 1 is the optical system diagram of the embodiment of the present invention.
Fig. 2 is the mechanical construction drawing of the embodiment of the present invention.
In figure: group A before A-, A-1-bears selenodont lens A-1, and A-2-biconcave lens A-2, organizes B after B-, B-1-biconvex lens B-1, B-2-biconvex lens B-2, B-3-biconcave lens B-3, O-image planes; 1-trim ring, 2-jackscrew, the main cylinder of 3-, 4-the first spacer ring, 5-locking nail, 6-the second spacer ring, 7-Connection Block, 8-banking pin.
Detailed description of the invention
As shown in Figure 1, a kind of high resolution day and night CS interface tight shot, the frame for movement of described camera lens adopts CS interface; It is that front group of A and the focal power of bearing is rear group of positive B that the optical system of described camera lens is provided with focal power successively along light incident direction, and described front group of A is provided with negative selenodont lens A-1 and biconcave lens A-2, the focal distance f of described front group of A successivelyA=-8.66mm, the gummed group that described rear group of B is provided with successively biconvex lens B-1 and connected airtight by biconvex lens B-2 and biconcave lens B-3, the focal distance f of described rear group of BB=6.92mm。
In the present embodiment, airspace between described front group of A and rear group of B is 4.8 ~ 4.90mm, airspace between negative selenodont lens A-1 and biconcave lens A-2 in described front group of A is 0.31 ~ 0.38mm, and the biconvex lens B-1 in described rear group of B and the airspace between gummed group are 0.1 ~ 0.12mm.
In the present embodiment, the thickness of described negative selenodont lens A-1 is 1.50mm, and the thickness of described biconcave lens A-2 is 1.35mm, and the thickness of described biconvex lens B-1 is 2.05mm, the thickness of described biconvex lens B-2 is 3.8mm, and the thickness of described biconcave lens B-3 is 3.9mm.
In the present embodiment, the optical system being made up of above-mentioned lens set has reached following optical index: (1) focal length: f '=12mm; (2) relative aperture F=1.6; (3) angle of visual field: 2w≤35 °; (4) resolution ratio: can with 3,000,000 pixel high-resolution CCD or cmos camera adaptation; (5) light path overall length ∑≤23mm, optics rear cut-off distance l ' >=7.5mm; (6) be suitable for spectral line scope: 480nm～850nm.
The present invention, in the time of optical design, carries out aberration correction and balance to the wide spectral range of 485～850nm, makes camera lens all have good picture element at wide spectral range, has realized wide spectrum confocal. Like this camera lens can not only photoenvironment in the daytime under blur-free imaging, under night utmost point low-light (level) environment, by infrared light filling, also can blur-free imaging. Negative selenodont lens A-1 of the present invention and biconcave lens A-2 select the optical glass material of high refraction, low dispersion, the various aberrations of having proofreaied and correct optical lens by computer optics Computer Aided Design and optimization make camera lens realize high-resolution, more meet the requirement of high definition video shooting, be applicable to the shooting of panorama machine.
As shown in Figure 2, the frame for movement of described camera lens comprises main cylinder 3 and Connection Block 7, described optical system is arranged in main cylinder 3 and is fastened by the trim ring 1 of front end, described trim ring 1 front end lateral wall is threaded and is withstood by jackscrew 2 with main cylinder 3, between described biconcave lens A-2 and biconvex lens B-1, be provided with the first spacer ring 4, between described biconvex lens B-1 and biconvex lens B-2, be provided with the second spacer ring 6, described Connection Block 7 front end side wall lock onto the limited ring groove on main cylinder 3 by locking nail 5, described Connection Block 7 rear inside walls are connected with thick bamboo tube rear end lateral wall clearance thread, described Connection Block 7 rear end lateral walls are provided with CS interface, described Connection Block 7 front end side wall are provided with the banking pin 8 that the limited ring groove on main cylinder 3 matches.
In the present embodiment, the being mounted with property and the stability that ensure whole eyeglasses of coordinating of described trim ring 1 and main cylinder 3, described jackscrew 2 ensures stationarity and the stability that trim ring 1 assembles, air distance between logical light and the eyeglass of described the first spacer ring 4 and second spacer ring 6 its eyeglasses of guarantee, described locking nail 5 ensures stationarity and the stability of lens focus, clearance thread between described Connection Block 7 and main cylinder 3 coordinates and plays micro-focusing action, the interface 1 " x (1/32) " of described Connection Block 7 standard configurations ensures and video camera perfect cooperation, described banking pin 8 comes off to prevent Connection Block 7 with the scope that the engagement limits Connection Block 7 of main cylinder 3 moves.
In the present embodiment, the plane that the spacer ring of guarantee eyeglass airspace contacts with eyeglass will have accurate perpendicularity to ensure the accuracy of eyeglass assembling; Design main cylinder 3 o'clock, endoporus internal diameter size is carried out to strict size Control, it is coordinated closely with eyeglass, reach the axiality of eyeglass installation requirement and the uniformity of lens light axis, and have strict size and status requirement on main cylinder 3. Structure of the present invention is light and handy, meets the principle that overall volume is little, exquisite, and in order to coordinate compactness, can adopt numerical control processing technology, ensures the accuracy of its precision.
The present invention is in the time of structural design, both ensured camera lens concentricity, precision and axial location accurately, make again structural design compactness small and exquisite (overall dimensions Ф 30mm × 21.6mm), can be applicable to the occasion that structure is compacter, such as small-sized ball machine etc., its applicable surface is wider. Wherein all constitutional details adopt NC super machining technique, meet the strict demand of optical design to air distance, make the compact conformation of camera lens, meet the demand of client to CS interface.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1. a high resolution day and night CS interface tight shot, is characterized in that: the frame for movement of described camera lens adopts CS interface; It is that front group of A and the focal power of bearing is rear group of positive B that the optical system of described camera lens is provided with focal power successively along light incident direction, and described front group of A is provided with negative selenodont lens A-1 and biconcave lens A-2, the focal distance f of described front group of A successivelyA=-8.66mm, the gummed group that described rear group of B is provided with successively biconvex lens B-1 and connected airtight by biconvex lens B-2 and biconcave lens B-3, the focal distance f of described rear group of BB=6.92mm。
2. high resolution day and night CS interface tight shot according to claim 1, it is characterized in that: the airspace between described front group of A and rear group of B is 4.8 ~ 4.90mm, airspace between negative selenodont lens A-1 and biconcave lens A-2 in described front group of A is 0.31 ~ 0.38mm, and the biconvex lens B-1 in described rear group of B and the airspace between gummed group are 0.1 ~ 0.12mm.
3. high resolution day and night CS interface tight shot according to claim 1 and 2, it is characterized in that: the thickness of described negative selenodont lens A-1 is 1.50mm, the thickness of described biconcave lens A-2 is 1.35mm, the thickness of described biconvex lens B-1 is 2.05mm, the thickness of described biconvex lens B-2 is 3.8mm, and the thickness of described biconcave lens B-3 is 3.9mm.
4. high resolution day and night CS interface tight shot according to claim 1, it is characterized in that: the frame for movement of described camera lens comprises main cylinder and Connection Block, described optical system is arranged in main cylinder and is fastened by the trim ring of front end, described trim ring front end lateral wall is threaded and is withstood by jackscrew with main cylinder, between described biconcave lens A-2 and biconvex lens B-1, be provided with the first spacer ring, between described biconvex lens B-1 and biconvex lens B-2, be provided with the second spacer ring, described Connection Block front end side wall lock onto the limited ring groove on main cylinder by locking nail, described Connection Block rear inside wall is connected with thick bamboo tube rear end lateral wall clearance thread, described Connection Block rear end lateral wall is provided with CS interface, described Connection Block front end side wall is provided with the banking pin that the limited ring groove on main cylinder matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410335285.4A CN104090349B (en) | 2014-07-15 | 2014-07-15 | High resolution day and night CS interface tight shot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410335285.4A CN104090349B (en) | 2014-07-15 | 2014-07-15 | High resolution day and night CS interface tight shot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104090349A CN104090349A (en) | 2014-10-08 |
| CN104090349B true CN104090349B (en) | 2016-05-25 |
Family
ID=51638078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410335285.4A Active CN104090349B (en) | 2014-07-15 | 2014-07-15 | High resolution day and night CS interface tight shot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104090349B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105460425A (en) * | 2015-12-25 | 2016-04-06 | 福建福光股份有限公司 | Bubble housing for lenses and use method of bubble housing |
| CN112099176B (en) * | 2020-09-01 | 2022-08-02 | Oppo广东移动通信有限公司 | Lens barrel, lens assembly, camera module and electronic device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3572037B2 (en) * | 2001-08-24 | 2004-09-29 | キヤノン株式会社 | Lens system and optical apparatus having the same |
| JP4815304B2 (en) * | 2006-08-04 | 2011-11-16 | 株式会社シグマ | Wide angle lens |
| JP5480089B2 (en) * | 2010-09-29 | 2014-04-23 | 富士フイルム株式会社 | Projection lens and projection display device |
| TWI460492B (en) * | 2012-09-26 | 2014-11-11 | Sintai Optical Shenzhen Co Ltd | Slim lens assembly |
| CN203950066U (en) * | 2014-07-15 | 2014-11-19 | 福建福光数码科技有限公司 | High resolution day and night CS interface tight shot |
-
2014
- 2014-07-15 CN CN201410335285.4A patent/CN104090349B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104090349A (en) | 2014-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104155741B (en) | High resolution day and night tight shot | |
| CN104330873B (en) | High resolution day and night fish eye lens | |
| CN103913818B (en) | The low distortion micro pick-up lens of Large visual angle | |
| CN103984077B (en) | High resolution day and night tight shot | |
| CN104459950B (en) | High resolution day and night micro-lens | |
| CN204229037U (en) | High resolution day and night fish eye lens | |
| CN103399391B (en) | Ten million pixel large target surface day and night micro pick-up lens | |
| CN104090349B (en) | High resolution day and night CS interface tight shot | |
| CN104808314A (en) | Fisheye lens adapted to high-pixel large-target-surface chip | |
| CN203870318U (en) | High-resolution day-night prime lens | |
| CN203455537U (en) | Ten-million-pixel large-target-surface night and day miniature camera lens | |
| CN204556943U (en) | High resolving power, low distortion day and night tight shot | |
| CN104181674B (en) | High-resolution fine setting day and night tight shot | |
| CN203950066U (en) | High resolution day and night CS interface tight shot | |
| CN202904110U (en) | Low-distortion high-resolution day and night dual-purpose miniature pick-up lens | |
| CN204009196U (en) | Economical high resolution day and night tight shot | |
| CN203825276U (en) | Large-viewing-field low-distortion micro camera lens | |
| CN204496091U (en) | The economic money micro-lens of high resolution day and night | |
| CN203759343U (en) | Small-target-surface high-resolution ultra-wide-angle fish-eye lens | |
| CN103823291B (en) | Little target surface high resolving power ultra-wide angle fish eye lens | |
| CN103389565B (en) | Low-distortion and high-resolution infrared miniature lens | |
| CN204287586U (en) | High resolution day and night micro-lens | |
| CN205263385U (en) | Big miniature aspherical mirror head that leads to light of big target surface | |
| CN203422522U (en) | Low-distortion high-resolution infrared miniature lens | |
| CN104459959A (en) | High-resolution 3.6-mm fixed-focus miniature lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 158 No. 350015 Fujian province Fuzhou Mawei District Jiangbin East Avenue Applicant after: FUJIAN FORECAM CO., LTD. Address before: 158 No. 350015 Fujian province Fuzhou Mawei District Jiangbin East Avenue Applicant before: Fujian Forecam Optics Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: FUJIAN FORECAM DIGITAL TECHNOLOGY CO., LTD. TO: FUJIAN FORECAM CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |