CN104166223A - Miniature high-definition camera lens - Google Patents
Miniature high-definition camera lens Download PDFInfo
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- CN104166223A CN104166223A CN201410414171.9A CN201410414171A CN104166223A CN 104166223 A CN104166223 A CN 104166223A CN 201410414171 A CN201410414171 A CN 201410414171A CN 104166223 A CN104166223 A CN 104166223A
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Abstract
The invention relates to a miniature high-definition camera lens. A front assembly A with the minus focal power and a rear assembly B with the plus focal power are sequentially arranged in the light incident direction. The front assembly A is provided with a double-concave lens A-1. The rear assembly B is sequentially provided with a double-convex lens B-1, a first bonded assembly formed by tightly connecting a crescent-shaped concave lens B-2 and a crescent-shaped convex lens B-3 and a second bonded assembly formed by tightly connecting a double-convex lens B-4 and a crescent-shaped concave lens B-5. According to the miniature high-definition camera lens, the focal power of the front assembly A and the focal power of the rear assembly B are reasonably distributed in a reverse long distance optical structure and the two bonded lens assemblies are additionally arranged on the rear assembly B on the basis of a three-sheet Cooke type structure, so that the camera lens reaches the performance indexes of the small lenses, the ultra-wide angle and the short structure; optical glass materials with high index of refraction and low chromatic dispersion are selected for use to the greatest extent, various image errors of the optical lens are corrected, the resolution of the camera lens is high, and the requirement for megapixel high-definition camera shooting can be met.
Description
Technical field
The present invention relates to a kind of Miniature high-definition pick-up lens.
Background technology
As shown in Figure 1, the TV camera len of ultra wide-angle of existing structure pattern has been applied more than 10 year in video camera field; Its performance index are not high, especially aspect image definition, it can only with the SD CCD of 20～300,000 pixels or cmos camera adaptation.Along with the continuous appearance of 1,000,000 grades of pixel high-resolution CCD, cmos image sensor, photo electric video frequency monitoring has stepped into network times; Along with improving constantly of people's level of consumption, minisize pick-up head is the product of modern high technology, have another name called mini-monitor, there is little, the powerful feature of volume, disguised relatively good, purposes is also more and more wider, has extensively applied to the industries such as aviation, business, medium, enterprises and institutions, family, more and more higher to the clear requirement of camera lens thus.
Summary of the invention
In order to meet the need of market better, technical matters to be solved by this invention is to provide a kind of Miniature high-definition pick-up lens.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: a kind of Miniature high-definition pick-up lens, setting gradually focal power along light incident direction is that front group of A and the focal power of bearing is rear group of positive B, described front group of A is provided with biconcave lens A-1, and described rear group of B is provided with biconvex lens B-1 successively, the first gummed group of being connected airtight by falcate concavees lens B-2 and positive meniscus lens B-3 and the second gummed group of being connected airtight by biconvex lens B-4 and falcate concavees lens B-5.
Further, the airspace between the biconcave lens A-1 of described front group of A and the biconvex lens B-1 of rear group of B is 0.52 ~ 0.535mm.
Further, the airspace between the biconvex lens B-1 of described rear group of B and the first gummed group is 0.105 ~ 0.12mm.
Further, the first gummed group of described rear group of B and the airspace of the second gummed group are 0.095 ~ 0.11mm.
Further, described front group of A and rear group of B are arranged in body tube successively, described biconcave lens A-1 is located by the flange in body tube front end, between described biconcave lens A-1 and biconvex lens B-1, be provided with feeding spaced papers, between the falcate concavees lens B-5 of the positive meniscus lens B-3 of described the first gummed group and the second gummed group, be provided with spacer ring, the falcate concavees lens B-5 of described the second gummed group is fastening by rear trim ring.
Further, on described body tube, be processed with tweezers groove.
Further, described spacer ring is notch cuttype.
Further, on described rear trim ring, be pasted with optical filter.
Compared with prior art, the present invention has following beneficial effect:
(1) in the optical texture of retrofocus type reasonable distribution the focal power of front group of A and rear group of B, wherein organize afterwards B and add cemented doublet group on three-chip type Ke Ke type architecture basics, make camera lens reach little eyeglass, super wide-angle, the short performance index of structure length.
(2) can, by the optical glass material of reasonable selection forward and backward two six four groups of large group, select the optical glass material of high index of refraction, low dispersion as far as possible; Can pass through area of computer aided optical design and optimization, proofread and correct the various aberrations of optical lens, make the resolution of camera lens high, can adapt to the requirement of mega pixel high definition pick-up.
(3) in the time of spatial design, by light hurdle Position Design on eyeglass (biconcave lens A-1).
(4) in the time of structural design, between biconcave lens A-1 and biconvex lens B-1, increase feeding spaced papers, prevent the scuffing between eyeglass and eyeglass; In the front end of body tube, can push down eyeglass, using the one side leveling of biconcave lens A-1 as the face of leaning on.
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Brief description of the drawings
Fig. 1 is the TV camera len of ultra wide-angle of existing structure pattern.
Fig. 2 is the optical system schematic diagram of the embodiment of the present invention.
Fig. 3 is the lens construction schematic diagram of the embodiment of the present invention.
In figure: 1-body tube, 2-feeding spaced papers, 3-spacer ring, trim ring after 4-, 5-optical filter; Group before A-, A-1-biconcave lens A-1, group after B-, B-1-biconvex lens B-1, B-2-falcate concavees lens B-2, B-3-positive meniscus lens B-3, B-4-biconvex lens B-4, B-5-falcate concavees lens B-5.
Embodiment
As shown in Fig. 2 ~ 3, a kind of Miniature high-definition pick-up lens, along light from left to right incident direction to set gradually focal power be that front group of A and the focal power of bearing is rear group of positive B, described front group of A is provided with biconcave lens A-1, and described rear group of B is provided with biconvex lens B-1 successively, the first gummed group of being connected airtight by falcate concavees lens B-2 and positive meniscus lens B-3 and the second gummed group of being connected airtight by biconvex lens B-4 and falcate concavees lens B-5.
In the present embodiment, airspace between the biconcave lens A-1 of described front group of A and the biconvex lens B-1 of rear group of B is 0.52 ~ 0.535mm, airspace between the biconvex lens B-1 of described rear group of B and the first gummed group is 0.105 ~ 0.12mm, and the first gummed group of described rear group of B and the airspace of the second gummed group are 0.095 ~ 0.11mm.
In the present embodiment, the light path of this camera lens adopts the optical texture of retrofocus type, the focal power that wherein the second gummed component has been carried on a shoulder pole rear group of B, has improved camera lens relative aperture, utilizes the second gummed to organize aberration and the wide spectrum aberration of the refractive index of positive and negative eyeglass and the difference correction camera lens of dispersion.The technical indicator being reached by above-mentioned lens set is as follows: (1) focal length: f '=3.7mm; (2) relative aperture D/F=1/2.8; (3) field angle 2 ω: 120 °; (4) be suitable for spectral range: 480nm～650nm; (5) light path overall length ∑≤14.1mm.
In the present embodiment, described front group of A and rear group of B are arranged in body tube 1 successively, described biconcave lens A-1 is located by the flange in body tube 1 front end, between described biconcave lens A-1 and biconvex lens B-1, be provided with feeding spaced papers 2, not only ensure the airspace between the two, and prevented from scratching between eyeglass; Between the falcate concavees lens B-5 of the positive meniscus lens B-3 of described the first gummed group and the second gummed group, be provided with spacer ring 3, ensured the airspace between the two; The falcate concavees lens B-5 of described the second gummed group is fastening by rear trim ring 4.Because body tube 1 is produced on same board, guarantee the right alignment of whole light path, after eyeglass assembling, compress by rear trim ring 4, make the off-axis aberration of optical lens reach designing requirement.
In the present embodiment, because whole camera lens is small and exquisite, for the ease of using, on described body tube 1, be processed with tweezers groove.Meanwhile, described spacer ring 3 is made notch cuttype, has both saved material, can play better again the effect of interception parasitic light.The general phenomenon such as red of the picture that causes for cancellation infrared light, on described rear trim ring 4 rear sides with the gluing optical filter 5 that posts of UV, so that imaging effect to be provided better.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (8)
1. a Miniature high-definition pick-up lens, it is characterized in that: setting gradually focal power along light incident direction is that front group of A and the focal power of bearing is rear group of positive B, described front group of A is provided with biconcave lens A-1, and described rear group of B is provided with biconvex lens B-1 successively, the first gummed group of being connected airtight by falcate concavees lens B-2 and positive meniscus lens B-3 and the second gummed group of being connected airtight by biconvex lens B-4 and falcate concavees lens B-5.
2. Miniature high-definition pick-up lens according to claim 1, is characterized in that: the airspace between the biconcave lens A-1 of described front group of A and the biconvex lens B-1 of rear group of B is 0.52 ~ 0.535mm.
3. Miniature high-definition pick-up lens according to claim 1 and 2, is characterized in that: the airspace between the biconvex lens B-1 of described rear group of B and the first gummed group is 0.105 ~ 0.12mm.
4. Miniature high-definition pick-up lens according to claim 1 and 2, is characterized in that: the first gummed group of described rear group of B and the airspace of the second gummed group are 0.095 ~ 0.11mm.
5. Miniature high-definition pick-up lens according to claim 1, it is characterized in that: described front group of A and rear group of B are arranged in body tube successively, described biconcave lens A-1 is located by the flange in body tube front end, between described biconcave lens A-1 and biconvex lens B-1, be provided with feeding spaced papers, between the falcate concavees lens B-5 of the positive meniscus lens B-3 of described the first gummed group and the second gummed group, be provided with spacer ring, the falcate concavees lens B-5 of described the second gummed group is fastening by rear trim ring.
6. Miniature high-definition pick-up lens according to claim 5, is characterized in that: on described body tube, be processed with tweezers groove.
7. Miniature high-definition pick-up lens according to claim 5, is characterized in that: described spacer ring is notch cuttype.
8. Miniature high-definition pick-up lens according to claim 5, is characterized in that: on described rear trim ring, be pasted with optical filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410414171.9A CN104166223B (en) | 2014-08-21 | 2014-08-21 | Miniature high-definition pick-up lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410414171.9A CN104166223B (en) | 2014-08-21 | 2014-08-21 | Miniature high-definition pick-up lens |
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| CN104166223A true CN104166223A (en) | 2014-11-26 |
| CN104166223B CN104166223B (en) | 2016-05-25 |
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| CN201410414171.9A Active CN104166223B (en) | 2014-08-21 | 2014-08-21 | Miniature high-definition pick-up lens |
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Citations (10)
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|---|---|---|---|---|
| CN2763825Y (en) * | 2004-12-28 | 2006-03-08 | 矽峰光电科技股份有限公司 | Sectional zoom lens |
| JP2007286548A (en) * | 2006-04-20 | 2007-11-01 | Sharp Corp | Zoom lens, digital camera, and portable information device |
| US20080117529A1 (en) * | 2006-11-22 | 2008-05-22 | Jin Moung Jeong | Zoom Lens |
| CN101666906A (en) * | 2008-09-05 | 2010-03-10 | 索尼株式会社 | Zoom lens and image pickup device |
| US20110063737A1 (en) * | 2009-09-11 | 2011-03-17 | Samsung Electronics Co., Ltd. | Compact zoom optical system |
| JP2011102838A (en) * | 2009-11-10 | 2011-05-26 | Nikon Corp | Achromatic athermal lens system and optical apparatus with the same |
| CN102289056A (en) * | 2011-09-27 | 2011-12-21 | 苏州大学 | Front objective lens with large field of view and large relative aperture for imaging spectrograph |
| US20130100541A1 (en) * | 2011-10-25 | 2013-04-25 | Hon Hai Precision Industry Co., Ltd. | Lens system with reduced length and high resolution |
| CN203133373U (en) * | 2012-11-16 | 2013-08-14 | 广州长步道光电科技有限公司 | Ultra-wide angle fish-eye lens |
| CN204009197U (en) * | 2014-08-21 | 2014-12-10 | 福建福光数码科技有限公司 | Miniature high-definition pick-up lens |
-
2014
- 2014-08-21 CN CN201410414171.9A patent/CN104166223B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2763825Y (en) * | 2004-12-28 | 2006-03-08 | 矽峰光电科技股份有限公司 | Sectional zoom lens |
| JP2007286548A (en) * | 2006-04-20 | 2007-11-01 | Sharp Corp | Zoom lens, digital camera, and portable information device |
| US20080117529A1 (en) * | 2006-11-22 | 2008-05-22 | Jin Moung Jeong | Zoom Lens |
| CN101666906A (en) * | 2008-09-05 | 2010-03-10 | 索尼株式会社 | Zoom lens and image pickup device |
| US20110063737A1 (en) * | 2009-09-11 | 2011-03-17 | Samsung Electronics Co., Ltd. | Compact zoom optical system |
| JP2011102838A (en) * | 2009-11-10 | 2011-05-26 | Nikon Corp | Achromatic athermal lens system and optical apparatus with the same |
| CN102289056A (en) * | 2011-09-27 | 2011-12-21 | 苏州大学 | Front objective lens with large field of view and large relative aperture for imaging spectrograph |
| US20130100541A1 (en) * | 2011-10-25 | 2013-04-25 | Hon Hai Precision Industry Co., Ltd. | Lens system with reduced length and high resolution |
| CN203133373U (en) * | 2012-11-16 | 2013-08-14 | 广州长步道光电科技有限公司 | Ultra-wide angle fish-eye lens |
| CN204009197U (en) * | 2014-08-21 | 2014-12-10 | 福建福光数码科技有限公司 | Miniature high-definition pick-up lens |
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| Publication number | Publication date |
|---|---|
| CN104166223B (en) | 2016-05-25 |
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Address after: 158 No. 350015 Fujian province Fuzhou Mawei District Jiangbin East Avenue Applicant after: FUJIAN FORECAM CO., LTD. Address before: 158 No. 350015 Fujian province Fuzhou Mawei District Jiangbin East Avenue Applicant before: Fujian Forecam Optics Co., Ltd. |
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