CN204496091U - The economic money micro-lens of high resolution day and night - Google Patents
The economic money micro-lens of high resolution day and night Download PDFInfo
- Publication number
- CN204496091U CN204496091U CN201520095609.1U CN201520095609U CN204496091U CN 204496091 U CN204496091 U CN 204496091U CN 201520095609 U CN201520095609 U CN 201520095609U CN 204496091 U CN204496091 U CN 204496091U
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- lens
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- positive meniscus
- high resolution
- meniscus lens
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- 230000005499 meniscus Effects 0.000 claims abstract description 30
- 210000000554 Iris Anatomy 0.000 claims abstract description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 230000003287 optical Effects 0.000 abstract description 11
- 230000003595 spectral Effects 0.000 abstract description 7
- 230000004075 alteration Effects 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000005304 optical glass Substances 0.000 abstract description 3
- 230000004304 visual acuity Effects 0.000 abstract description 3
- 238000003384 imaging method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000037250 Clearance Effects 0.000 description 1
- 230000003044 adaptive Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000035512 clearance Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Abstract
The utility model relates to the economic money micro-lens of a kind of high resolution day and night, along light direction be provided with successively focal power be negative before to organize A, iris C and focal power be rear group of positive B, before described, group A is provided with positive meniscus lens A-1, the gummed group that described rear group of B is provided with positive meniscus lens B-1 successively and is touched by biconvex lens B-2 and biconcave lens B-3.The retrofocus type light channel structure that this camera lens adopts positive negative power to be separated, has the advantages such as low distortion, object lens of large relative aperture, high resolving power, wide spectral be confocal; Its eyeglass can select the optical glass material of high refraction, low dispersion, by computer optics Computer Aided Design and correct optical lens various aberrations with optimizing, make the high and low distortion of the resolution of camera lens, the requirement of the high definition video shooting of 2,000,000 pixels can be adapted to.
Description
Technical field
The utility model relates to a kind of imaging lens device of supervisory system, particularly the economic money micro-lens of a kind of high resolution day and night.
Background technology
Along with the development of science and technology and society to day of high definition camera product demand to increase sharply, the market of camera lens obtains swift and violent development.Through evolution and the development of 20 ~ 30 years, the micro pick-up lens of multiple different size model and video camera is had to support the use at present.But the performance index of these camera lenses are very different, great majority belong to low grade products, performance index are low, the spectral range not only adapted to is narrow, can only use, and pattern distortion amount is larger in the daytime of 480nm ~ 700nm under light condition, pattern distortion and visions of reality picture difference become large, authenticity is poor, only adapts to the common camera of 20 ~ 300,000 pixels, can not meet current needs.
Utility model content
In order to meet the high definition demand 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 to provide a kind of low distortion, the economic money micro-lens of wide spectral high resolution day and night that is confocal, that be better than 2,000,000 pixels.
To achieve these goals, the technical solution of the utility model is: the economic money micro-lens of a kind of high resolution day and night, along light direction be provided with successively focal power be negative before to organize A, iris C and focal power be rear group of positive B, before described, group A is provided with positive meniscus lens A-1, the gummed group that described rear group of B is provided with positive meniscus lens B-1 successively and is touched by biconvex lens B-2 and biconcave lens B-3.
Further, the airspace between described front group of A and rear group of B is 8.32mm.
Further, the positive meniscus lens B-1 in described rear group of B and the airspace of gummed group are 0.08mm.
Further, described rear group of B and front group of A is arranged in plastics body tube successively, described biconcave lens B-3 is located by the inward flange of body tube rear end, the second spacer ring is provided with between described biconvex lens B-2 and positive meniscus lens B-1, be provided with the first spacer ring between described positive meniscus lens B-1 and positive meniscus lens A-1, described positive meniscus lens A-1 is fixed by front trim ring.
Further, described first spacer ring adopts staged spacer ring.
Further, the external thread of described front trim ring matches with the internal thread of body tube front end.
Compared with prior art, the utility model has following beneficial effect:
(1) the retrofocus type light channel structure adopting positive negative power to be separated, has the advantages such as low distortion, object lens of large relative aperture, high resolving power, wide spectral be confocal.
(2) in structural design, adopt plastics body tube, reduce cost, and utilize stamper to suppress to make its structure compacter, stable, the air clearance in optics is more suitable, closer to standard, imaging is also good than metal lens barrel.
(3) eyeglass can select the optical glass material of high refraction, low dispersion, by computer optics Computer Aided Design and correct optical lens various aberrations with optimizing, make the high and low distortion of the resolution of camera lens, the requirement of the high definition video shooting of 2,000,000 pixels can be adapted to.
(4) 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.
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: 1-body tube, 2-first spacer ring, 3-second spacer ring; Before A-, group A, A-1-positive meniscus lens A-1, organizes B after B-, B-1-positive meniscus lens B-1, B-2-biconvex lens B-2, B-3-biconcave lens B-3, C-iris C.
Embodiment
As shown in Figure 1, the economic money micro-lens of a kind of high resolution day and night, along light from left to right incident direction be provided with successively focal power be negative before to organize A, iris C and focal power be rear group of positive B, before described, group A is provided with positive meniscus lens A-1, the gummed group that described rear group of B is provided with positive meniscus lens B-1 successively and is touched by biconvex lens B-2 and biconcave lens B-3.
In the present embodiment, the airspace between described front group of A and rear group of B is 8.32mm, and the positive meniscus lens B-1 in described rear group of B and the airspace of gummed group are 0.08mm.
In the present embodiment, the optical system be made up of above-mentioned lens set reaches following optical index: (1) focal length: f '=6.0mm; (2) relative aperture F=2.0; (3) horizontal view angle: 1/3Full=47 °, 1/3.2Full=45 °; (4) TV distortion: 1/3Full " <-5%; (5) resolution: can be adaptive with 2,000,000 pixel high-resolution video cameras; (6) interface type: M12 × 0.5; (7) image planes size: 1/3 "; (8) aperture type: Fixed; (9) working temperature :-20 DEG C ~ 60 DEG C.
The utility model, when optical design, carries out aberration correction and balance to the wide spectral range of 485 ~ 850nm, makes camera lens all have excellent picture element at wide spectral range, achieves 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.The utility model can select the optical glass material of high refraction, low dispersion, by computer optics Computer Aided Design and optimization, corrects the various aberrations of optical lens, makes camera lens have the advantage such as high resolving power, object lens of large relative aperture, day and night confocal, low distortion.
As shown in Figure 2, described rear group of B and front group of A is arranged in plastics body tube 1 successively, described biconcave lens B-3 is located by the inward flange of body tube 1 rear end, the second spacer ring 3 is provided with between described biconvex lens B-2 and positive meniscus lens B-1, be provided with the first spacer ring 2 between described positive meniscus lens B-1 and positive meniscus lens A-1, described positive meniscus lens A-1 is fixed by front trim ring (omitting in figure).
In the present embodiment, described positive meniscus lens A-1 and positive meniscus lens B-1, after stamper is suppressed, limits interiors of products element degree of freedom, ensures stationarity and the stability of eyeglass assembling.Ensure that the spacer ring of eyeglass airspace and the plane of lens contacts will have accurate verticality to ensure the accuracy that eyeglass assembles in described body tube 1, therefore strict size Control is carried out to spacer ring bore inner diameter size, make it coordinate closely with eyeglass, 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, its external diameter adopts M12 interface, meets the interface requirement that client uses video camera.
In the present embodiment, described first spacer ring 2 ensure that airspace and the optical axis assembling thereof of positive meniscus lens A-1 and positive meniscus lens B-1, and described second spacer ring 3 ensure that airspace and the optical axis assembling thereof of positive meniscus lens B-1 and gummed group; Wherein, described first spacer ring 2 adopts staged spacer ring.In addition, the external thread of described front trim ring matches with the internal thread of body tube 1 front end.
The utility model, when structural design, had both ensured the accurate of the concentricity of camera lens, precision and axial location, made again compact conformation small and exquisite, met the principle that overall volume is little, can be applicable to the occasion that structure is compacter, and its applicable surface is wider.Wherein, all constitutional details can adopt NC super machining technique, ensure the accuracy of its precision, meet the strict demand of optical design to air distance, make the compact conformation of camera lens, volume little, lightweight.
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. the economic money micro-lens of high resolution day and night, it is characterized in that: along light direction be provided with successively focal power be negative before to organize A, iris C and focal power be rear group of positive B, before described, group A is provided with positive meniscus lens A-1, the gummed group that described rear group of B is provided with positive meniscus lens B-1 successively and is touched by biconvex lens B-2 and biconcave lens B-3.
2. the economic money micro-lens of high resolution day and night according to claim 1, is characterized in that: the airspace between described front group of A and rear group of B is 8.32mm.
3. the economic money micro-lens of high resolution day and night according to claim 1 and 2, is characterized in that: the positive meniscus lens B-1 in described rear group of B and the airspace of gummed group are 0.08mm.
4. the economic money micro-lens of high resolution day and night according to claim 1, it is characterized in that: described rear group of B and front group of A is arranged in plastics body tube successively, described biconcave lens B-3 is located by the inward flange of body tube rear end, the second spacer ring is provided with between described biconvex lens B-2 and positive meniscus lens B-1, be provided with the first spacer ring between described positive meniscus lens B-1 and positive meniscus lens A-1, described positive meniscus lens A-1 is fixed by front trim ring.
5. the economic money micro-lens of high resolution day and night according to claim 4, is characterized in that: described first spacer ring adopts staged spacer ring.
6. the economic money micro-lens of high resolution day and night according to claim 4, is characterized in that: the external thread of described front trim ring matches with the internal thread of body tube front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520095609.1U CN204496091U (en) | 2015-02-11 | 2015-02-11 | The economic money micro-lens of high resolution day and night |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520095609.1U CN204496091U (en) | 2015-02-11 | 2015-02-11 | The economic money micro-lens of high resolution day and night |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204496091U true CN204496091U (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520095609.1U Expired - Fee Related CN204496091U (en) | 2015-02-11 | 2015-02-11 | The economic money micro-lens of high resolution day and night |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204496091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678535A (en) * | 2015-02-11 | 2015-06-03 | 福建福光数码科技有限公司 | High-resolution day and night dual-purpose economic miniature lens |
| CN105116512A (en) * | 2015-09-21 | 2015-12-02 | 福建福光股份有限公司 | Economical prime lens for M12 interfaces |
-
2015
- 2015-02-11 CN CN201520095609.1U patent/CN204496091U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678535A (en) * | 2015-02-11 | 2015-06-03 | 福建福光数码科技有限公司 | High-resolution day and night dual-purpose economic miniature lens |
| CN105116512A (en) * | 2015-09-21 | 2015-12-02 | 福建福光股份有限公司 | Economical prime lens for M12 interfaces |
| CN105116512B (en) * | 2015-09-21 | 2017-10-31 | 福建福光股份有限公司 | The economical tight shot of M12 interfaces |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20170211 |