CN204086659U - High resolving power fine setting day and night tight shot - Google Patents
High resolving power fine setting day and night tight shot Download PDFInfo
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- CN204086659U CN204086659U CN201420534541.8U CN201420534541U CN204086659U CN 204086659 U CN204086659 U CN 204086659U CN 201420534541 U CN201420534541 U CN 201420534541U CN 204086659 U CN204086659 U CN 204086659U
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- high resolving
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Abstract
The utility model relates to a kind of high resolving power fine setting day and night tight shot, in the optical system of described camera lens, along light, incident direction is provided with focal power successively is from left to right that to organize A and focal power before negative lens set be organize B after positive lens set, be provided with iris C between described front group of A and rear group of B, before described, group A comprises the positive meniscus lens A-1 and negative meniscus lens A-2 that set gradually from left to right; Described rear group of B comprises gummed group and the biconvex lens B-3 of biconcave lens B-1 and the biconvex lens B-2 contiguity set gradually from left to right.This high resolving power fine setting day and night tight shot has low distortion, object lens of large relative aperture, high-resolution advantage, can adapt to the requirement of 3,000,000 pixel high definition video shootings, realize wide spectral confocal.
Description
Technical field
The utility model relates to a kind of high resolving power fine setting day and night tight shot, belongs to the optical pick-up apparatus field of video technique.
Background technology
Micro television CCTV camera is through the evolution of 20 ~ 30 years and development, the micro pick-up lens of varied specifications and models is had 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, and can only use under light condition in the daytime of 480nm ~ 700nm, pattern distortion amount is larger, pattern distortion and visions of reality picture difference become large, and authenticity is poor.These all can not meet current needs.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of low distortion, object lens of large relative aperture, realizes the confocal high resolving power fine setting day and night tight shot of wide spectral, can meet the requirement of high definition video shooting.
The utility model adopts following scheme to realize: a kind of high resolving power fine setting day and night tight shot, in the optical system of described camera lens, along light, incident direction is provided with focal power successively is from left to right that to organize A and focal power before negative lens set be organize B after positive lens set, be provided with iris C between described front group of A and rear group of B, before described, group A comprises the positive meniscus lens A-1 and negative meniscus lens A-2 that set gradually from left to right; Described rear group of B comprises gummed group and the biconvex lens B-3 of biconcave lens B-1 and the biconvex lens B-2 contiguity set gradually from left to right.
Further, the airspace between described front group of A and rear group of B is 6.27mm; Airspace between described iris C and rear group of B is 1.18mm.
Further, the airspace before described in group A between positive meniscus lens A-1 and negative meniscus lens A-2 is 0.12mm, and the airspace in described rear group of B between gummed group and biconvex lens B-3 is 0.08mm.
Further, described camera lens physical construction comprises body tube, and A is organized before being provided with lens set in body tube inner chamber front portion, organizes B after body tube inner chamber rear portion is provided with lens set; Body tube outer race is provided with Connection Block.
Further, be provided with spacer between front group of A and rear group of B, body tube front end is provided with the trim ring being pressed on outer edge on front side of positive meniscus lens A-1, is provided with spacer ring between the gummed group that biconcave lens B-1 and biconvex lens B-2 touches and biconvex lens B-3.
Further, described Connection Block adopts C interface, Connection Block is connected with locking nail and banking pin.
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 485 ~ 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 3,000,000 pixel high definition video shootings can be adapted to;
(3) 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 Ф 30mm x 20mm), the occasion that structure is compacter can be applicable to.Wherein all constitutional details adopt NC super machining technique, and meet the strict demand of optical design to air distance, make the compact conformation of camera lens, volume is little, lightweight.
Accompanying drawing explanation
Fig. 1 is the optical system schematic diagram of the utility model embodiment;
Fig. 2 is the physical construction schematic diagram of the utility model embodiment;
Number in the figure illustrates: 1-trim ring, 2-body tube, 3-locking nail, 4-Connection Block, 5-positive meniscus lens A-1,6-negative meniscus lens A-2,7-spacer, 8-biconcave lens B-1,9-biconvex lens B-2,10-biconvex lens B-3,11-spacer ring, 12-banking pin.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly understand, below by specific embodiment and relevant drawings, the utility model will be described in further detail.
As described in Fig. 1 ~ 2, a kind of high resolving power fine setting day and night tight shot, in the optical system of described camera lens, along light, incident direction is provided with focal power successively is from left to right that to organize A and focal power before negative lens set be organize B after positive lens set, be provided with iris C between described front group of A and rear group of B, before described, group A comprises the positive meniscus lens A-1(5 set gradually from left to right) and negative meniscus lens A-2(6); Described rear group of B comprises the biconcave lens B-1(8 set gradually from left to right) and biconvex lens B-2(9) the gummed group of touching and biconvex lens B-3(10).
In the present embodiment, the airspace between described front group of A and rear group of B is 6.27mm; Airspace between described iris C and rear group of B is 1.18mm.
In the present embodiment, airspace before described in group A between positive meniscus lens A-1 and negative meniscus lens A-2 is 0.12mm, airspace in described rear group of B between gummed group and biconvex lens B-3 is 0.08mm, this kind of lens combination, there is low distortion, object lens of large relative aperture, high resolving power, realize the advantages such as wide spectral is confocal, the requirement of 3,000,000 pixel high definition videos shootings can be adapted to.
In the present embodiment, the optical system be made up of above-mentioned lens set reaches following optical index:
(1) focal length: f '=8.0mm;
(2) relative aperture F=2.0;
(3) field angle: 2w=50 ° (image space is as visual field 2 η ' >=Ф 6.7mm);
(4) distort: <-10.45%;
(5) resolution: can be adaptive with 3,000,000 pixel high-resolution video cameras;
(6) light path overall length ∑≤23.09mm, optics rear cut-off distance l ' >=9.47mm;
(7) spectral line scope: 480nm ~ 850nm is suitable for.
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.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; Select the optical glass material of high refraction, low dispersion simultaneously, 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 3,000,000 pixel high definition video shootings can be adapted to;
In the present embodiment, described camera lens physical construction comprises body tube 2, and A is organized before being provided with lens set in body tube 2 inner chamber front portion, organizes B after body tube 2 inner chamber rear portion is provided with lens set; Body tube 2 outer race is provided with Connection Block 4, and Connection Block 4 and body tube 2, by threaded engagement, can make body tube movable to realize focusing when rotating body tube.
In the present embodiment, be provided with spacer 7 between front group of A and rear group of B, light enters rear group of B by the light hole in the middle part of described spacer 7, ensures the airspace between front group of A and rear group of B.Body tube 2 front end is provided with and is pressed on positive meniscus lens A-1(5) front side outer edge trim ring 1, trim ring 1 is fixed on body tube front end by screw lock, trim ring 1 limits product inner member degree of freedom, ensure stationarity and the stability of eyeglass assembling, this trim ring 1 step-like structure simultaneously, both material, weight reduction had been saved, also can better absorption edge parasitic light; Biconcave lens B-1(8) and biconvex lens B-2(9) the gummed group of touching and biconvex lens B-3(10) between be provided with spacer ring (11).
In the present embodiment, in order to meet the request for utilization of client's video camera, described Connection Block 4 adopts C interface, Connection Block 4 is connected with locking nail 3 and banking pin 12, wherein locking nail 3 can lock Connection Block 4 and the axial location of body tube 2, prevents the focal length confirmed from moving at gamma camera or moving body tube 2 in vibrations process and cause focal length variations; And banking pin 12 stretches in body tube upper limit position groove through after Connection Block perisporium, the shift position of body tube 2 can be limited, prevent transition from moving and coming off.
When structural design, ensure the accurate of the concentricity of camera lens, precision and axial location, structural design compact small and exquisite (overall dimensions Ф 30mm x 20mm), can be applicable to the occasion that structure is compacter.Wherein all constitutional details adopt NC super machining technique, and meet the strict demand of optical design to air distance, make the compact conformation of camera lens, volume is little, lightweight.
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 (6)
1. a high resolving power fine setting day and night tight shot, it is characterized in that: in the optical system of described camera lens, along light, incident direction is provided with focal power successively is from left to right that to organize A and focal power before negative lens set be organize B after positive lens set, be provided with iris C between described front group of A and rear group of B, before described, group A comprises the positive meniscus lens A-1 and negative meniscus lens A-2 that set gradually from left to right; Described rear group of B comprises gummed group and the biconvex lens B-3 of biconcave lens B-1 and the biconvex lens B-2 contiguity set gradually from left to right.
2. high resolving power fine setting day and night tight shot according to claim 1, is characterized in that: the airspace between described front group of A and rear group of B is 6.27mm; Airspace between described iris C and rear group of B is 1.18mm.
3. high resolving power fine setting day and night tight shot according to claim 1, it is characterized in that: the airspace before described in group A between positive meniscus lens A-1 and negative meniscus lens A-2 is 0.12mm, and the airspace in described rear group of B between gummed group and biconvex lens B-3 is 0.08mm.
4. high resolving power fine setting day and night tight shot according to claim 1, it is characterized in that: described camera lens physical construction comprises body tube, A is organized before being provided with lens set in body tube inner chamber front portion, organizes B after body tube inner chamber rear portion is provided with lens set; Body tube outer race is provided with Connection Block.
5. high resolving power fine setting day and night tight shot according to claim 4, it is characterized in that: between front group of A and rear group of B, be provided with spacer, body tube front end is provided with the trim ring being pressed on outer edge on front side of positive meniscus lens A-1, is provided with spacer ring between the gummed group that biconcave lens B-1 and biconvex lens B-2 touches and biconvex lens B-3.
6. high resolving power fine setting day and night tight shot according to claim 4, is characterized in that: described Connection Block adopts C interface, Connection Block is connected with locking nail and banking pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420534541.8U CN204086659U (en) | 2014-09-18 | 2014-09-18 | High resolving power fine setting day and night tight shot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420534541.8U CN204086659U (en) | 2014-09-18 | 2014-09-18 | High resolving power fine setting day and night tight shot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204086659U true CN204086659U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420534541.8U Expired - Fee Related CN204086659U (en) | 2014-09-18 | 2014-09-18 | High resolving power fine setting day and night tight shot |
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| CN (1) | CN204086659U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181674A (en) * | 2014-09-18 | 2014-12-03 | 福建福光数码科技有限公司 | High-resolution fine adjustment day and night prime lens |
-
2014
- 2014-09-18 CN CN201420534541.8U patent/CN204086659U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181674A (en) * | 2014-09-18 | 2014-12-03 | 福建福光数码科技有限公司 | High-resolution fine adjustment day and night prime lens |
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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 | ||
| 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: 20150107 Termination date: 20170918 |