CN204287582U - Large target surface high-resolution focuses CS monitoring camera - Google Patents
Large target surface high-resolution focuses CS monitoring camera Download PDFInfo
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- CN204287582U CN204287582U CN201420792746.6U CN201420792746U CN204287582U CN 204287582 U CN204287582 U CN 204287582U CN 201420792746 U CN201420792746 U CN 201420792746U CN 204287582 U CN204287582 U CN 204287582U
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Abstract
The utility model relates to a kind of large target surface high-resolution and focuses CS monitoring camera, the optical system of described camera lens is provided with front group of A, light hurdle C and rear group of B successively along light direction, the first gummed group that before described, group A is provided with plano-convex lens A-1 successively, is touched by biconvex lens A-2 and biconcave lens A-3, described rear group of B is provided with the second gummed group of being touched by biconvex lens B-1 and biconcave lens B-2, the 3rd gummed group of being touched by plano-concave lens B-3 and biconvex lens B-4 successively.The light path of this camera lens adopts the anti-distance optical structure be made up of four groups of seven lens, and relative aperture is comparatively large, and luminous flux is large, and distort little, lens edge dispersion is little, has that object lens of large relative aperture, wide spectral are confocal, resolution is better than the advantages such as 6,000,000 pixels.
Description
Technical field
The utility model relates to a kind of optical pick-up apparatus of video technique, and particularly a kind of large target surface high-resolution focuses CS monitoring camera.
Background technology
Along with the demand in security protection market constantly increases, the kind of camera lens is also day by day enriched.The design of tight shot, manufacture and come simple than zoom lens, better realize the advantages such as high image quality, large aperture, small size, image quality are stable, moving object clear picture importantly captured by tight shot and stablizing, focusing accurately, picture is fine and smooth, granular sensation is slight, and light-metering is also more accurate.Therefore, standard tight shot is the main product of miniature monitored video camera system.
Experienced by the early stage planning of safe city, after mid-term builds, the appearance gradually of 4K, high definition camera lens, bandwidth sum code stream technology is also changed thereupon, and "smart" products become new lover.For the camera lens focusing this type, the advantages such as the high image quality of utilization own, large aperture, image quality are stable, walk the forward position at high definition camera lens, for hardware foundation is established in next step safe city construction.Along with monitoring application is more and more wider, especially outdoor monitoring project gets more and more, and people wish that the scope of supervisory system is more wide better.Except the communal facility such as harbour, airport, present petrochemical industry project, generating etc. the demand of field to remote monitoring also grow with each passing day.
Utility model content
In order to meet the monitoring demand of farther Distance geometry wider scope, long focal length lens demand increases just fast, and the purpose of this utility model is to provide that a kind of object lens of large relative aperture, wide spectral are confocal, resolution is better than 6,000,000 pixels, adopt the large target surface high-resolution of CS interface to focus CS monitoring camera.
To achieve these goals, the technical solution of the utility model is: a kind of large target surface high-resolution focuses CS monitoring camera, the optical system of described camera lens is provided with front group of A, light hurdle C and rear group of B successively along light direction, the first gummed group that before described, group A is provided with plano-convex lens A-1 successively, is touched by biconvex lens A-2 and biconcave lens A-3, described rear group of B is provided with the second gummed group of being touched by biconvex lens B-1 and biconcave lens B-2, the 3rd gummed group of being touched by plano-concave lens B-3 and biconvex lens B-4 successively.
Further, the airspace between described front group of A and rear group of B is 2.844mm.
Further, the described front airspace organized between the plano-convex lens A-1 of A and the first gummed group is 0.301mm.
Further, the airspace between the second gummed group of described rear group of B and the 3rd gummed group is 2.59mm.
Further, before described, plano-convex lens A-1, the biconvex lens A-2 of group A and biconcave lens A-3 all adopt the optical glass material of high index of refraction.
Compared with prior art, the utility model has the following advantages:
(1) light path of this camera lens adopts the anti-distance optical structure be made up of four groups of seven lens, wherein, three eyeglasses of group A assume responsibility for very large focal power, make the oblique ray of wide-angle, after front group of A, fast " convergence ", reduce with the slanted angle of optical axis, through after organize B refraction after, the angle of chief ray and optical axis reduces, and makes camera lens achieve excellent aberration correction, and makes the uniform-illumination of image planes.
(2) this camera lens relative aperture is comparatively large, and luminous flux is large, and distort little, lens edge dispersion is little; Relative aperture is greatly its maximum advantage, then light can enter camera lens more; Heavy caliber camera lens, just likely produces large aperture; Large aperture, just more easily moulds image.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the optical system diagram of the utility model embodiment.
Fig. 2 is the mechanical construction drawing of the utility model embodiment.
In figure: group A, A-1-plano-convex lens A-1, A-2-biconvex lens A-2 before A-, A-3-biconcave lens A-3, organizes B after B-, B-1-biconvex lens B-1, B-2-biconcave lens B-2, B-3-plano-concave lens B-3, B-4-biconvex lens B-4, C-light hurdle C; Trim ring before 1-, 2-point Jiao Kou, 3-first spacer ring, 4-second spacer ring, 5-locking nail, 6-Connection Block, 7-the 3rd spacer ring, 8-body tube, 9-plano-convex lens A-1,10-first gummed group, 11-banking pin, 12-second gummed group, 13-the 3rd gummed group.
Embodiment
As shown in Figure 1, a kind of large target surface high-resolution focuses CS monitoring camera, the optical system of described camera lens along light from left to right incident direction be provided with front group of A, light hurdle C and rear group of B successively, the first gummed group that before described, group A is provided with plano-convex lens A-1 successively, is touched by biconvex lens A-2 and biconcave lens A-3, described rear group of B is provided with the second gummed group of being touched by biconvex lens B-1 and biconcave lens B-2, the 3rd gummed group of being touched by plano-concave lens B-3 and biconvex lens B-4 successively.
In the present embodiment, airspace between described front group of A and rear group of B is 2.844mm, before described, the airspace organized between the plano-convex lens A-1 of A and the first gummed group is 0.301mm, and the airspace between the second gummed group of described rear group of B and the 3rd gummed group is 2.59mm.Wherein, plano-convex lens A-1, the biconvex lens A-2 of described front group A and biconcave lens A-3 all adopt the optical glass material of high index of refraction, and the convex surface of described plano-convex lens A-1 is coated with Buddha's warrior attendant film, has good scratch resistant effect.
In the present embodiment, the optical system be made up of above-mentioned lens set reaches following optical index: (1) focal length: f '=25mm; (2) relative aperture F=1.8; (3) image planes size: 1/1.8 "; (4) field angle: 2w >=14 ° (image space is as visual field 2 η ' >=Ф 8mm); (5) resolution: can be adaptive with 6,000,000 pixel high-resolution CCD or cmos camera; (6) light path overall length ∑≤29.942mm, optics rear cut-off distance l ' >=7.68mm; (7) spectral line scope: 400nm ~ 850nm is suitable for.
When optical design, aberration correction and balance are carried out to the wide spectral range of 400 ~ 850nm, make camera lens all have excellent picture element at wide spectral range, achieve wide spectral confocal.Such camera lens can not only blur-free imaging under photoenvironment in the daytime, under night pole low-light (level) environment, by infrared light filling, and also can blur-free imaging.On the other hand, the optical glass material selecting high refraction, low dispersion is considered when optical design, various aberration and the distortion of optical lens is corrected by computer optics Computer Aided Design and optimization, camera lens is made to realize full filed, high resolving power, more meet the requirement of large space of a whole page high definition video shooting, be applicable to the shooting of panorama machine.
As shown in Figure 2, the physical construction of described camera lens comprises body tube 8 and Connection Block 6, described optical system to be arranged in body tube 8 and to be fixed by front trim ring 1, described front trim ring 1 lateral wall is threaded with body tube 8 and is fixed by some glue mouth 2 glue on body tube 8 sidewall, described plano-convex lens A-1(9) and the first gummed group 10 between be provided with the first spacer ring 3, the second spacer ring 4 is provided with between described first gummed group 10 and the second gummed group 12, the 3rd spacer ring 7 is provided with between described second gummed group 12 and the 3rd gummed group 13, described Connection Block 6 front end side wall lock onto the limited ring groove on body tube 8 by locking nail 5, described Connection Block 6 rear inside wall is connected with body tube 8 rear end lateral wall clearance thread, described Connection Block 6 rear end lateral wall is provided with CS interface, described Connection Block 6 front end side wall is provided with the banking pin 11 coordinated with the limited ring groove on body tube 8.
In the present embodiment, described body tube 8 is once machining, the positional precision of body tube 8 can be ensured well, and ensure that the spacer ring of eyeglass airspace and the plane of lens contacts have accurate verticality adding to be strict with man-hour, and ensure the accuracy that eyeglass assembles thus.Strict size Control is carried out to body tube 8 bore inner diameter size, makes it coordinate with eyeglass and closely reach the right alignment of eyeglass installation requirement and the consistance of lens light axis.And by ensureing the air distance between each eyeglass to the accurate processing of spacer ring.
In the present embodiment, described Connection Block 6 also plays an important role at camera lens itself.First, by coordinating of body tube 8 and Connection Block 6, ensure the connection of CS interface; Secondly, lock banking pin 11 by the spacing hole on Connection Block 6 and fix camera lens, ensure body tube 8 and Connection Block 6 close-fitting; Finally, by locking nail 5 control linkage seat 6, make it rotate, reach function burnt after regulating.On the whole, by front trim ring 1, the being mounted with property of whole eyeglass, stability is ensured.The utility model light structure, meets the principle that overall volume is little; In addition, compact in order to coordinate, adopt numerical control processing technology, ensure the accuracy of its precision.
When structural design, both ensured the accurate of the concentricity of camera lens, precision and axial location, make again compact conformation small and exquisite (overall dimensions Ф 30mm × 22.38mm), 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 geometry eyeglass concentricity, make the compact conformation of camera lens, volume little, ensure to be connected with CS interface.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (6)
1. a large target surface high-resolution focuses CS monitoring camera, it is characterized in that: the optical system of described camera lens is provided with front group of A, light hurdle C and rear group of B successively along light direction, the first gummed group that before described, group A is provided with plano-convex lens A-1 successively, is touched by biconvex lens A-2 and biconcave lens A-3, described rear group of B is provided with the second gummed group of being touched by biconvex lens B-1 and biconcave lens B-2, the 3rd gummed group of being touched by plano-concave lens B-3 and biconvex lens B-4 successively.
2. large target surface high-resolution according to claim 1 focuses CS monitoring camera, it is characterized in that: the airspace between described front group of A and rear group of B is 2.844mm.
3. large target surface high-resolution according to claim 1 and 2 focuses CS monitoring camera, it is characterized in that: the airspace organized before described between the plano-convex lens A-1 of A and the first gummed group is 0.301mm.
4. large target surface high-resolution according to claim 1 and 2 focuses CS monitoring camera, it is characterized in that: the airspace between the second gummed group of described rear group of B and the 3rd gummed group is 2.59mm.
5. large target surface high-resolution according to claim 1 focuses CS monitoring camera, it is characterized in that: plano-convex lens A-1, the biconvex lens A-2 of described front group A and biconcave lens A-3 all adopt the optical glass material of high index of refraction.
6. large target surface high-resolution according to claim 1 focuses CS monitoring camera, it is characterized in that: the physical construction of described camera lens comprises body tube and Connection Block, described optical system to be arranged in body tube and to be fixed by front trim ring, described front trim ring lateral wall is threaded with body tube and is fixed by the some glue stomion glue on body tube sidewall, the first spacer ring is provided with between described plano-convex lens A-1 and the first gummed group, the second spacer ring is provided with between described first gummed group and the second gummed group, the 3rd spacer ring is provided with between described second gummed group and the 3rd gummed group, described Connection Block front end side wall lock onto the limited ring groove on body tube by locking nail, described Connection Block rear inside wall is connected with body 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 coordinated with the limited ring groove on body tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420792746.6U CN204287582U (en) | 2014-12-16 | 2014-12-16 | Large target surface high-resolution focuses CS monitoring camera |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420792746.6U CN204287582U (en) | 2014-12-16 | 2014-12-16 | Large target surface high-resolution focuses CS monitoring camera |
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| CN204287582U true CN204287582U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420792746.6U Withdrawn - After Issue CN204287582U (en) | 2014-12-16 | 2014-12-16 | Large target surface high-resolution focuses CS monitoring camera |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459943B (en) * | 2014-12-16 | 2016-08-24 | 福建福光股份有限公司 | Big target surface high-resolution focuses CS monitoring camera |
-
2014
- 2014-12-16 CN CN201420792746.6U patent/CN204287582U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459943B (en) * | 2014-12-16 | 2016-08-24 | 福建福光股份有限公司 | Big target surface high-resolution focuses CS monitoring camera |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: FUJIAN FORECAM CO., LTD. Free format text: FORMER NAME: FUJIAN FORECAM DIGITAL TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 158 No. 350015 Fujian province Fuzhou Mawei District Jiangbin East Avenue Patentee after: FUJIAN FORECAM CO., LTD. Address before: 158 No. 350015 Fujian province Fuzhou Mawei District Jiangbin East Avenue Patentee before: Fujian Forecam Optics Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150422 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |