CN204287590U - High resolving power 3.6mm focuses micro-lens - Google Patents
High resolving power 3.6mm focuses micro-lens Download PDFInfo
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- CN204287590U CN204287590U CN201420795264.6U CN201420795264U CN204287590U CN 204287590 U CN204287590 U CN 204287590U CN 201420795264 U CN201420795264 U CN 201420795264U CN 204287590 U CN204287590 U CN 204287590U
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- lens
- resolving power
- high resolving
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- biconvex
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Abstract
The utility model relates to a kind of high resolving power 3.6mm and focuses micro-lens, comprise the optical system be arranged in primary mirror bucket, described optical system is the negative selenodont lens set gradually along light direction, the gummed group that biconvex lens A and biconvex lens B and positive selenodont lens touch, compared with prior art, the utility model has following beneficial effect: camera lens forms four lens combinations by original six eyeglasses by change, reduce costs simultaneously, ensure that picture element requirement, cost performance is high, pixel is high, volume is little, quality is light, light structure, meet the principle that overall volume is little.
Description
Technical field
The utility model relates to a kind of high resolving power 3.6mm and focuses micro-lens.
Background technology
Appearance and the application of micro television CCTV camera have the history of 20 ~ 30 years; there is the micro pick-up lens of varied specifications and models supporting with it. their performance index are very different; 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 large, and pattern distortion and visions of reality picture difference become large, and authenticity is poor.
Utility model content
The purpose of this utility model is for above weak point, provides a kind of low distortion, resolution is better than 3,000,000 pixels, the high resolving power 3.6mm of day and night micro pick-up lens focuses micro-lens.
The scheme that the utility model technical solution problem adopts is that a kind of high resolving power 3.6mm focuses micro-lens, comprise the optical system be arranged in body tube, described optical system is the gummed group that the negative selenodont lens, biconvex lens A and the biconvex lens B that set gradually along light direction and positive selenodont lens touch.
Further, the airspace between described negative selenodont lens and biconvex lens A is 7.65mm.
Further, the airspace between described biconvex lens A and gummed group is 1mm.
Further, be provided with the first spacer ring between described negative selenodont lens, biconvex lens A, between described biconvex lens A and gummed group, be provided with the second spacer ring.
Further, described negative selenodont lens, biconvex lens A and gummed group are the optical glass material of low dispersion, high refraction.
Further, described body tube is that high-precision mold injection forms.
Further, described body tube inside is provided with some positioning boss for positioning optical system components.
Further, the described negative selenodont focal length of lens is-11.01mm, and described biconvex lens A focal length is 5.18mm, and described gummed group focal length is 0.75mm.
Compared with prior art, the utility model has following beneficial effect: camera lens forms four lens combinations by original six eyeglasses by change, reduces costs simultaneously, ensure that picture element requirement, cost performance is high, pixel is high, volume is little, quality is light, light structure, meets the principle that overall volume is little.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model patent is further illustrated.
Fig. 1 is structural representation of the present utility model;
In figure: 1-bears selenodont lens; 2-first spacer ring; 3-biconvex lens A; 4-second spacer ring; 5-gummed group; 6-body tube.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
As shown in Figure 1, a kind of high resolving power 3.6mm focuses micro-lens, comprise the optical system be arranged in body tube 6, described optical system is the gummed group 5 that the negative selenodont lens 1, biconvex lens A3 and the biconvex lens B that set gradually along light direction and positive selenodont lens touch, the glass of low-refraction selected by negative selenodont lens 1, strengthen with the slanted angle of optical axis, after the eyeglass refraction of biconvex lens 3 and gummed group 5, the angle of chief ray and optical axis reduces, and makes camera lens achieve excellent aberration correction.Biconvex lens A3 is set, effectively utilizes the aberration that it carrys out corrective lens, make the resolution of camera lens up to 3,000,000 pixels.
In the present embodiment, the airspace between described negative selenodont lens 1 and biconvex lens A3 is 7.65mm.
In the present embodiment, the airspace between described biconvex lens A3 and gummed group 5 is 1mm.
In the present embodiment, be provided with the first spacer ring 2 between described negative selenodont lens 1, biconvex lens A3, between described biconvex lens A3 and gummed group 5, be provided with the second spacer ring 4.
In the present embodiment, described negative selenodont lens 1, biconvex lens A3 and gummed group 5 are the optical glass material of low dispersion, high refraction, the field angle being corrected optical lens by computer optics Computer Aided Design and optimization makes camera lens realize high resolving power, more meets the requirement of high definition video shooting.
In the present embodiment, described body tube 6 forms for high-precision mold injection, ensure that the coaxial precision of optical requirement.
In the present embodiment, described body tube 6 inside is provided with some positioning boss for positioning optical system components.
In the present embodiment, described negative selenodont lens 1 focal length is-11.01mm, and described biconvex lens A3 focal length is 5.18mm, and described gummed group 5 focal length is 0.75mm.
In the present embodiment, when optical design, aberration correction and balance are carried out to the wide spectral range of 485 ~ 850nm, make camera lens all have excellent picture element at wide spectral range, achieve wide spectral confocal.
In the present embodiment, this camera lens reaches following optical index: (1) focal length: f '=3.6mm; (2) relative aperture F=2.0; (3) field angle: 2w≤156 °; (4) resolution: can be adaptive with 5,000,000 pixel high-resolution CCD or cmos camera; (5) light path overall length ∑≤18.6 mm, optics rear cut-off distance l ' >=5.1mm; (6) spectral line scope: 480nm ~ 850nm is suitable for.
Above-listed preferred embodiment; the purpose of this utility model, technical scheme and advantage are further described; be understood that; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a high resolving power 3.6mm focuses micro-lens, it is characterized in that: comprise the optical system be arranged in body tube, described optical system is the gummed group that the negative selenodont lens, biconvex lens A and the biconvex lens B that set gradually along light direction and positive selenodont lens touch.
2. the high resolving power 3.6mm according to claims 1 focuses micro-lens, it is characterized in that: the airspace between described negative selenodont lens and biconvex lens A is 7.65mm.
3. the high resolving power 3.6mm according to claims 1 focuses micro-lens, it is characterized in that: the airspace between described biconvex lens A and gummed group is 1mm.
4. the high resolving power 3.6mm according to claims 1 focuses micro-lens, it is characterized in that: be provided with the first spacer ring between described negative selenodont lens, biconvex lens A, be provided with the second spacer ring between described biconvex lens A and gummed group.
5. the high resolving power 3.6mm according to claims 1 focuses micro-lens, it is characterized in that: described negative selenodont lens, biconvex lens A and gummed group are the optical glass material of low dispersion, high refraction.
6. the high resolving power 3.6mm according to claims 1 focuses micro-lens, it is characterized in that: described body tube is that high-precision mold injection forms.
7. the high resolving power 3.6mm according to claims 6 focuses micro-lens, it is characterized in that: described body tube inside is provided with some positioning boss for positioning optical system components.
8. the high resolving power 3.6mm according to claims 1 focuses micro-lens, it is characterized in that: the described negative selenodont focal length of lens is-11.01mm, and described biconvex lens A focal length is 5.18mm, and described gummed group focal length is 0.75mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420795264.6U CN204287590U (en) | 2014-12-17 | 2014-12-17 | High resolving power 3.6mm focuses micro-lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420795264.6U CN204287590U (en) | 2014-12-17 | 2014-12-17 | High resolving power 3.6mm focuses micro-lens |
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| Publication Number | Publication Date |
|---|---|
| CN204287590U true CN204287590U (en) | 2015-04-22 |
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| CN201420795264.6U Active CN204287590U (en) | 2014-12-17 | 2014-12-17 | High resolving power 3.6mm focuses micro-lens |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459959A (en) * | 2014-12-17 | 2015-03-25 | 福建福光数码科技有限公司 | High-resolution 3.6-mm fixed-focus miniature lens |
-
2014
- 2014-12-17 CN CN201420795264.6U patent/CN204287590U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459959A (en) * | 2014-12-17 | 2015-03-25 | 福建福光数码科技有限公司 | High-resolution 3.6-mm fixed-focus miniature 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. |