CN204287586U - High resolution day and night micro-lens - Google Patents
High resolution day and night micro-lens Download PDFInfo
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- CN204287586U CN204287586U CN201420793351.8U CN201420793351U CN204287586U CN 204287586 U CN204287586 U CN 204287586U CN 201420793351 U CN201420793351 U CN 201420793351U CN 204287586 U CN204287586 U CN 204287586U
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- meniscus lens
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Abstract
The utility model relates to a kind of high resolution day and night micro-lens, the optical system of described camera lens along light direction be provided with successively focal power be negative before organize A and focal power is rear group of positive B, before described, group A is provided with positive meniscus lens A-1, negative meniscus lens A-2 and biconvex lens A-3 successively, and described rear group of B is provided with positive meniscus lens B-1, the gummed group of being touched by single concavees lens B-2 and biconvex lens B-3 and biconvex lens B-4 successively.This camera lens can not only blur-free imaging under photoenvironment in the daytime, under night pole low-light (level) environment, by infrared light filling, also can blur-free imaging, the advantage such as there is low distortion, object lens of large relative aperture, high resolving power, cost performance height uses, scope is wide, can adapt to the requirement of 5,000,000 pixel high definition video shootings, be the main product of Household monitor.
Description
Technical field
The utility model relates to the imaging lens device of miniature video camera system, particularly a kind of high resolution day and night micro-lens.
Background technology
Micro television CCTV camera, through the evolution of 20 ~ 30 years and development, has the micro pick-up lens of varied specifications and models to support the use with it at present.But the performance index of these camera lenses are very different, and great majority belong to low grade products, and performance index are low, only adapt to the common camera of 20 ~ 300,000 pixels; The spectral range adapted to is narrow, can only use in the daytime of 480nm ~ 700nm under light condition; Pattern distortion amount is comparatively large, and pattern distortion and visions of reality picture difference become large, and authenticity is poor.Therefore, these camera lenses all can not meet current needs.
The development of science and technology and the surge of social safety demand must be helped, the swift and violent expansion that security protection market obtains.Technology of video compressing encoding now along with advanced person is constantly ripe, the develop rapidly of IP-based Internet Transmission and the application of Digital Zoom technology, market has been proposed the high-definition camera of a series of 2,000,000, three mega pixels.
Utility model content
In order to meet the demand of the high 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 micro pick-up lens prior art performance index this defect low, the purpose of this utility model is the high resolution day and night micro-lens for miniature video camera system provides a kind of low distortion, resolution is better than 2,000,000 pixels.
To achieve these goals, the technical solution of the utility model is: a kind of high resolution day and night micro-lens, the optical system of described camera lens along light direction be provided with successively focal power be negative before organize A and focal power is rear group of positive B, before described, group A is provided with positive meniscus lens A-1, negative meniscus lens A-2 and biconvex lens A-3 successively, and described rear group of B is provided with positive meniscus lens B-1, the gummed group of being touched by single concavees lens B-2 and biconvex lens B-3 and biconvex lens B-4 successively.
Further, the airspace between described front group of A and rear group of B is 7.01mm.
Further, the airspace between the positive meniscus lens A-1 before described in group A and negative meniscus lens A-2 is 2.354mm, and the airspace between described negative meniscus lens A-2 and biconvex lens A-3 is 0.576mm.
Further, the positive meniscus lens B-1 in described rear group of B and the airspace between gummed group are 0.276mm, and the airspace between described gummed group and biconvex lens B-4 is 0.157mm.
Compared with prior art, the utility model has following beneficial effect:
(1) when optical design, aberration correction and balance are carried out to the wide spectral range of 480 ~ 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.
(2) optical glass material of high refraction, low dispersion is selected, by computer optics Computer Aided Design and correct optical lens various aberrations with optimizing, make the resolution of camera lens high, low distortion, the requirement of 5,000,000 pixel high definition video shootings can be adapted to.
(3) this camera lens both in conjunction with market optical parametric and solution as demand, degree of depth excavation is carried out on the basis of forefathers, ensure that comparatively loose tolerance simultaneously, thus accomplish higher cost performance.
(4) when structural design, both ensured the accurate of the concentricity of camera lens, precision and axial location, and made again structural design compact small and exquisite (overall dimensions φ 14mm × 16.4mm), the occasion that structure is compacter can be applicable to, such as small-sized ball machine, hemisphere 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, volume little, lightweight.
(5) advantages such as this camera lens has low distortion, object lens of large relative aperture, high resolving power, cost performance height uses, scope is wide are the main products of Household monitor.
Below in conjunction with the drawings and specific embodiments, elaboration detailed is further done to the utility model.
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-positive meniscus lens A-1, A-2-negative meniscus lens A-2 before A-, A-3-biconvex lens A-3, organizes B after B-, B-1-positive meniscus lens B-1, B-2-mono-concavees lens B-2, B-3-biconvex lens B-3, B-4-biconvex lens B-4; 1-body tube, 2-first spacer ring, 3-second spacer ring, 4-gummed group, 5-escapes meat.
Embodiment
As shown in Figure 1, a kind of high resolution day and night micro-lens, the optical system of described camera lens along light from left to right incident direction be provided with successively focal power be negative before organize A and focal power is rear group of positive B, before described, group A is provided with positive meniscus lens A-1, negative meniscus lens A-2 and biconvex lens A-3 successively, and described rear group of B is provided with positive meniscus lens B-1, the gummed group of being touched by single concavees lens B-2 and biconvex lens B-3 and biconvex lens B-4 successively.
In the present embodiment, the airspace between described front group of A and rear group of B is 7.01mm; Airspace between positive meniscus lens A-1 before described in group A and negative meniscus lens A-2 is 2.354mm, and the airspace between described negative meniscus lens A-2 and biconvex lens A-3 is 0.576mm; Positive meniscus lens B-1 in described rear group of B and the airspace between gummed group are 0.276mm, and the airspace between described gummed group and biconvex lens B-4 is 0.157mm.
In the present embodiment, the technical indicator that realized by retrofocus type optical texture of this camera lens is as follows: (1) focal length: f '=4mm; (2) relative aperture: F=1.7; (3) field angle: 2 ω=80 ° (image space is as visual field 2 η ' >=φ 7mm); (4) distort: <-12%; (5) resolution: can be adaptive with 5,000,000 pixel high-resolution video cameras; (6) light path overall length ∑≤15.87mm, optics rear cut-off distance l ' >=6.82mm; (7) spectral line scope: 480nm ~ 850nm is suitable for.
As shown in Figure 2, the physical construction of described camera lens comprises body tube 1, described front group of A and rear group of B to be arranged on successively in body tube 1 and to be compressed by front trim ring (omitting in figure), compressed by front trim ring on front side of described positive meniscus lens A-1, the first spacer ring 2 is provided with between described biconvex lens A-3 and positive meniscus lens B-1, be provided with the second spacer ring 3 between described biconvex lens B-3 and biconvex lens B-4, located by the step in body tube 1 on rear side of described biconvex lens B-4.
In the present embodiment, the design of mechanical parts mainly meets the request for utilization of client and ensures logical light and the airspace of eyeglass.Wherein, described body tube 1 ensures that the spacer ring of eyeglass airspace and the plane of lens contacts will have accurate verticality to ensure the accuracy that eyeglass assembles, strict size Control is carried out to its bore inner diameter size, make it coordinate with eyeglass and closely reach the right alignment of eyeglass installation requirement and the consistance of lens light axis, and strict size and status requirement is had on body tube 1, external diameter adopts M12 interface, meets the interface requirement that client uses video camera; In addition, be also designed with in described body tube 1 sidewall and escape meat 5, strengthen body tube 1 intensity, prevent body tube 1 drawdown deformation.Described first spacer ring 2 ensures the airspace of biconvex lens A-3 and positive meniscus lens B-1 and optical axis assembling thereof, and described second spacer ring 3 ensures airspace and the optical axis assembling thereof of biconvex lens B-3 in gummed group 4 and biconvex lens B-4.
The utility model light structure, meets the principle that overall volume is little, and compactly adopts numerical control processing technology to coordinate, and ensures the accuracy of its precision.
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 (5)
1. a high resolution day and night micro-lens, it is characterized in that: the optical system of described camera lens along light direction be provided with successively focal power be negative before organize A and focal power is rear group of positive B, before described, group A is provided with positive meniscus lens A-1, negative meniscus lens A-2 and biconvex lens A-3 successively, and described rear group of B is provided with positive meniscus lens B-1, the gummed group of being touched by single concavees lens B-2 and biconvex lens B-3 and biconvex lens B-4 successively.
2. high resolution day and night micro-lens according to claim 1, is characterized in that: the airspace between described front group of A and rear group of B is 7.01mm.
3. high resolution day and night micro-lens according to claim 1 and 2, it is characterized in that: the airspace between the positive meniscus lens A-1 before described in group A and negative meniscus lens A-2 is 2.354mm, and the airspace between described negative meniscus lens A-2 and biconvex lens A-3 is 0.576mm.
4. high resolution day and night micro-lens according to claim 1 and 2, it is characterized in that: the positive meniscus lens B-1 in described rear group of B and the airspace between gummed group are 0.276mm, and the airspace between described gummed group and biconvex lens B-4 is 0.157mm.
5. high resolution day and night micro-lens according to claim 1, it is characterized in that: the physical construction of described camera lens comprises body tube, described front group of A and rear group of B to be arranged on successively in body tube and to be compressed by front trim ring, compressed by front trim ring on front side of described positive meniscus lens A-1, the first spacer ring is provided with between described biconvex lens A-3 and positive meniscus lens B-1, be provided with the second spacer ring between described biconvex lens B-3 and biconvex lens B-4, located by the step in body tube on rear side of described biconvex lens B-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420793351.8U CN204287586U (en) | 2014-12-16 | 2014-12-16 | High resolution day and night micro-lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420793351.8U CN204287586U (en) | 2014-12-16 | 2014-12-16 | High resolution day and night micro-lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204287586U true CN204287586U (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420793351.8U Withdrawn - After Issue CN204287586U (en) | 2014-12-16 | 2014-12-16 | High resolution day and night micro-lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204287586U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459950A (en) * | 2014-12-16 | 2015-03-25 | 福建福光数码科技有限公司 | High-resolution miniature lens for daytime and night |
-
2014
- 2014-12-16 CN CN201420793351.8U patent/CN204287586U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459950A (en) * | 2014-12-16 | 2015-03-25 | 福建福光数码科技有限公司 | High-resolution miniature lens for daytime and night |
| CN104459950B (en) * | 2014-12-16 | 2016-08-24 | 福建福光股份有限公司 | High resolution day and night micro-lens |
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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 |