CN205193339U - Economical 2. 6mm camera lens of high resolution - Google Patents
Economical 2. 6mm camera lens of high resolution Download PDFInfo
- Publication number
- CN205193339U CN205193339U CN201520875083.9U CN201520875083U CN205193339U CN 205193339 U CN205193339 U CN 205193339U CN 201520875083 U CN201520875083 U CN 201520875083U CN 205193339 U CN205193339 U CN 205193339U
- Authority
- CN
- China
- Prior art keywords
- lens
- group
- economical
- biconvex
- body tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Lenses (AREA)
Abstract
The utility model relates to an economical 2.6mm camera lens of high resolution, including a primary mirror section of thick bamboo, it has set gradually A of group and the preceding B of group of lens group before the lens group to follow the light incidence direction in the primary mirror section of thick bamboo, be provided with the diaphragm before the lens group before A of group and the lens group between the B of group, the B's of group rear end is provided with the light filter before the lens group. The utility model discloses utensil simple structure, the panel number is less, and under the circumstances at not enough light or night, through infrared light filling, also can guarantee image high -quality when can reach high -quality pixel daytime, and used glass is few, has lightened the lens assembly degree of difficulty, has reduced manufacturing cost.
Description
Technical field
The utility model relates to the economical 2.6mm camera lens of high resolving power.
Background technology
The mid-90 in last century is born in by web camera, and camera lens is as the main composition part of video camera, and its performance directly affects image quality.Early stage market there is various tight shot be applied in safety-protection system, but, because the spectrophotometric data of a lot of product is lower, great majority belong to low-end product, can only the common camera of adaptive lower pixel, and be difficult to realize the advantages such as large wide-angle, high resolving power, day and night confocal and eyeglass sheet number be less.
Utility model content
In order to overcome, existing pick-up lens technical indicator is lower, assembly difficulty these defects comparatively large, and the utility model provides the economical 2.6mm camera lens of high resolving power.
The technical solution of the utility model is, the economical 2.6mm camera lens of high resolving power, comprise body tube, B is organized before organizing A and lens set before being disposed with lens set along light direction in described body tube, before described lens set, group A and front the group between B of lens set are provided with diaphragm, and before described lens set, the rear end of group B is provided with optical filter.
Further, before described, group A comprises the biconcave lens A-1 and biconvex lens A-2 that set gradually along light direction, and described rear group of B comprises the biconvex lens B-1 set gradually along light direction and the negative crescent moon matrix lens B-2 glued together with biconvex lens B-1.
Further, the airspace between described front group of A and rear group of B is 0.91mm, and the airspace between described biconcave lens A-1 and biconvex lens A-2 is 5.31mm.
Further, the front end of described body tube is provided with for described biconcave lens A-1 pressing is fixed on trim ring before on body tube.
Further, in described body tube, between biconcave lens A-1 and biconvex lens A-2, be provided with AB spacer ring, in body tube, between biconvex lens A-2 and biconvex lens B-1, be provided with BC spacer ring.
Further, described biconcave lens A-1, biconvex lens A-2, biconvex lens B-1 and the optical axis of negative crescent moon matrix lens B-2 that glues together with biconvex lens B-1 all overlap.
Compared with prior art, the utility model has following beneficial effect: structure is simple, sheet number is less, select high refraction, the flint glass of low dispersion with carry out achromatism compared with the crown glass of low-refraction, and the focal power of camera lens has carried out reasonable distribution, camera lens is made to be corrected at the aberration of the wavelength coverage of 480 ~ 850nm and balance, ensure that this camera lens can blur-free imaging under photoenvironment in the daytime, under night pole low-light (level) environment, by infrared light filling, also can blur-free imaging, glass used is few, alleviate eyeglass assembly difficulty, reduce production cost, by arranging the air distance that spacer ring ensures between eyeglass, before coordinating, the pressing of trim ring is fixed, ensure the being mounted with property of whole eyeglass, stability.
Below in conjunction with the drawings and specific embodiments, elaboration detailed is further done to the utility model.
Accompanying drawing explanation
Fig. 1 is light channel structure schematic diagram of the present utility model;
Fig. 2 is structural representation of the present utility model.
In figure:
1-biconcave lens A-1; 2-biconvex lens A-2; 3-biconvex lens B-1; 4-bears crescent moon matrix lens B-2; 5-diaphragm; 6-optical filter; Trim ring before 7-; 8-body tube; 9-BC spacer ring; 10-AB spacer ring.
Embodiment
As shown in Figure 1 and 2, the economical 2.6mm camera lens of high resolving power, comprise body tube 8, B is organized before organizing A and lens set before being disposed with lens set along light direction in described body tube 8, before described lens set, group A and front the group between B of lens set are provided with diaphragm 5, and before described lens set, the rear end of group B is provided with optical filter 6.
In the present embodiment, before described, group A comprises the biconcave lens A-11 and biconvex lens A-22 that set gradually along light direction, and described rear group of B comprises the biconvex lens B-13 set gradually along light direction and the negative crescent moon matrix lens B-24 glued together with biconvex lens B-13.
In the present embodiment, the airspace between described front group of A and rear group of B is 0.91mm, and the airspace between described biconcave lens A-11 and biconvex lens A-22 is 5.31mm.
In the present embodiment, the front end of described body tube 8 is provided with for described biconcave lens A-11 pressing is fixed on trim ring 7 before on body tube 8.
In the present embodiment, between biconcave lens A-11 and biconvex lens A-22, be provided with AB spacer ring 10 in described body tube 8, in body tube 8, between biconvex lens A-22 and biconvex lens B-13, be provided with BC spacer ring 9.
In the present embodiment, described biconcave lens A-11, biconvex lens A-22, biconvex lens B-13 and the optical axis of negative crescent moon matrix lens B-24 that glues together with biconvex lens B-13 all overlap.
In the present embodiment, when optical design, reasonable distribution has been carried out to the focal power of camera lens, camera lens is made to obtain correcting and balance at the aberration of the wavelength coverage of 480 ~ 850nm, such camera lens can not only blur-free imaging under photoenvironment in the daytime, under night pole low-light (level) environment, by infrared light light filling, also can blur-free imaging.
In the present embodiment, select in optical system high refraction, low dispersion flint glass with carry out achromatism compared with the crown glass of low-refraction.
In the present embodiment, body tube 8 pairs of endoporus internal diameter sizes carry out strict size Control, make it coordinate with eyeglass and closely reach the right alignment of eyeglass installation requirement and the consistance of lens light axis, and on main cylinder, have strict size and status requirement to ensure the normal assembling of eyeglass, and the M12X0.5 interface of design meets the common interfaces specification on market, devises the air distance that BC spacer ring 9 ensures biconvex lens A-22 and biconvex lens B-13; Design AB spacer ring 10 ensures the air distance of biconcave lens A-11 and biconvex lens A-22, and trim ring 7 before designing for biconcave lens A-11, ensures the being mounted with property of whole eyeglass, stability.
In the present embodiment, the optical system be made up of above-mentioned lens set reaches following optical index:
1. focal length: f '=2.6mm;
2. relative aperture F=2.3
Field angle: 2w >=120 ° (image space is as visual field 2 η ' >=Ф 4.5mm);
3. distort: <-20%;
4. resolution: can be adaptive with 5,000,000 pixel high-resolution CCD or cmos camera;
5. light path overall length ∑≤18mm, optics rear cut-off distance L ' >=5mm;
6. be suitable for spectral line scope: 480nm ~ 850nm.
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. the economical 2.6mm camera lens of high resolving power, it is characterized in that: comprise body tube, B is organized before organizing A and lens set before being disposed with lens set along light direction in described body tube, before described lens set, group A and front the group between B of lens set are provided with diaphragm, and before described lens set, the rear end of group B is provided with optical filter.
2. the economical 2.6mm camera lens of high resolving power according to claim 1, it is characterized in that: before described, group A comprises the biconcave lens A-1 and biconvex lens A-2 that set gradually along light direction, and described rear group of B comprises the biconvex lens B-1 set gradually along light direction and the negative crescent moon matrix lens B-2 glued together with biconvex lens B-1.
3. the economical 2.6mm camera lens of high resolving power according to claim 2, is characterized in that: the airspace between described front group of A and rear group of B is 0.91mm, and the airspace between described biconcave lens A-1 and biconvex lens A-2 is 5.31mm.
4. the economical 2.6mm camera lens of high resolving power according to claim 2, is characterized in that: the front end of described body tube is provided with for described biconcave lens A-1 pressing is fixed on trim ring before on body tube.
5. the economical 2.6mm camera lens of high resolving power according to claim 2, it is characterized in that: in described body tube, between biconcave lens A-1 and biconvex lens A-2, be provided with AB spacer ring, in body tube, between biconvex lens A-2 and biconvex lens B-1, be provided with BC spacer ring.
6. the economical 2.6mm camera lens of high resolving power according to claim 2, is characterized in that: described biconcave lens A-1, biconvex lens A-2, biconvex lens B-1 and the optical axis of negative crescent moon matrix lens B-2 glued together with biconvex lens B-1 all overlap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875083.9U CN205193339U (en) | 2015-11-05 | 2015-11-05 | Economical 2. 6mm camera lens of high resolution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875083.9U CN205193339U (en) | 2015-11-05 | 2015-11-05 | Economical 2. 6mm camera lens of high resolution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205193339U true CN205193339U (en) | 2016-04-27 |
Family
ID=55786317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520875083.9U Active CN205193339U (en) | 2015-11-05 | 2015-11-05 | Economical 2. 6mm camera lens of high resolution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205193339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105242377A (en) * | 2015-11-05 | 2016-01-13 | 福建福光股份有限公司 | High-resolution economic 2.6mm lens |
-
2015
- 2015-11-05 CN CN201520875083.9U patent/CN205193339U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105242377A (en) * | 2015-11-05 | 2016-01-13 | 福建福光股份有限公司 | High-resolution economic 2.6mm lens |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103439782B (en) | 2.8 focus bugeye lens | |
| CN104155741B (en) | High resolution day and night tight shot | |
| CN103913818B (en) | The low distortion micro pick-up lens of Large visual angle | |
| CN103116213B (en) | Three mega pixels are confocal trigger camera lens day and night | |
| CN105259646A (en) | 2.8-8mm small-size zoom lens | |
| CN105445906A (en) | 4mm-focal length wide-angle high-light transmission day-and-night confocal lens | |
| CN105425365A (en) | 6mm high-light-transmission prime lens | |
| CN205193339U (en) | Economical 2. 6mm camera lens of high resolution | |
| CN105242377A (en) | High-resolution economic 2.6mm lens | |
| CN105372797B (en) | A kind of mini-focal aspheric lens | |
| CN205027964U (en) | 2. 8 -12mm zoom aspherical mirror head | |
| CN205507205U (en) | Low susceptibility high definition zoom | |
| CN204556943U (en) | High resolving power, low distortion day and night tight shot | |
| CN114047597B (en) | Fixed focus optical lens and imaging method thereof | |
| CN105353500A (en) | Low-sensitivity high-definition zoom lens | |
| CN202904110U (en) | Low-distortion high-resolution day and night dual-purpose miniature pick-up lens | |
| CN105467561B (en) | A kind of big thang-kng high-definition fixed-focus camera lens of big wide-angle | |
| CN202177734U (en) | Day and night mini camera lens having super wide angle and high resolution | |
| CN102279458B (en) | Ultra wide-angle high-resolution day and night dual-purpose mini-type pick-up lens | |
| CN205318006U (en) | Big light high definition tight shot that leads to of big wide angle | |
| CN205353442U (en) | Big light tight shot that leads to of 6mm | |
| CN205318004U (en) | Big confocal camera lens of light day night that leads to of 4mm focus wide angle | |
| CN204855923U (en) | Dual -purpose economic money camera lens of high resolution day night | |
| CN205193336U (en) | Big light high definition of leading to focuses aspherical mirror head | |
| CN203422519U (en) | Ultra-wide-angle 2.8 primary lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |