CN103389563B - Super-definition camera lens adopting plastic CS interface structure - Google Patents

Super-definition camera lens adopting plastic CS interface structure Download PDF

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Publication number
CN103389563B
CN103389563B CN201310355361.3A CN201310355361A CN103389563B CN 103389563 B CN103389563 B CN 103389563B CN 201310355361 A CN201310355361 A CN 201310355361A CN 103389563 B CN103389563 B CN 103389563B
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lens
cover
interface
gummed
airspace
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CN201310355361.3A
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CN103389563A (en
Inventor
吴志良
肖维军
张世忠
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Fujian Forecam Optics Co Ltd
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Fujian Forecam Optics Co Ltd
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Abstract

The invention relates to a super-definition camera lens adopting a plastic CS interface structure. An optical system of the lens is provided with a front assembly A with negative focal power, a diaphragm C and a rear assembly B with positive focal power in the light ray incident direction from left to right; the front assembly A is sequentially provided with a negative crescent lens A-1 and a first gluing group which is formed through tight connection of a biconcave lens A-2 and a biconvex lens A-3; and the rear assembly B is sequentially provided with a biconvex lens B-3, a negative crescent lens B-2, a second gluing group formed through tight connection of a negative crescent lens B-3 and a biconvex lens B-4, a negative crescent lens B-5, as well as a third gluing group formed through tight connection of a negative crescent lens B-6 and a negative crescent lens B-7. The lens has the advantages of ultra-wide field, high resolution, large relative aperture, broadband spectrum confocal performance, short structure length, high production efficiency and the like, and can meet requirements of 3 mega-pixel high-definition video camera shooting.

Description

The super clear pick-up lens of CS interface plastic construction
Technical field
The present invention relates to the super clear pick-up lens of a kind of CS interface plastic construction.
Background technology
Numerous and diverse and the easy imaging effect affecting camera lens changed by common metal trigger interface camera lens and metal CS interface camera lens, mainly because metal CS interface lens construction and trigger interface lens construction complexity and different, structural complexity influence factor is many, and imaging effect is poor.And along with the appearance of high-precision mold camera lens, but still there is the problem existing for metal shot, namely the CS interface of existing high-precision mold camera lens cannot directly connect conversion from trigger interface direct and not affect imaging effect, causes the accumulation of camera lens or supply falls short of demand.In addition, along with the fast development of science and technology, the raising gradually of people's awareness of safety, developing rapidly of safe protection engineering.The requirement of people to lens quality quality also improves accordingly, namely also has higher requirement to the material of lens construction.
Summary of the invention
In order to overcome the defect of existing CS interface high-precision mold camera lens, the technical problem to be solved in the present invention is to provide a kind of super clear pick-up lens of CS interface plastic construction with wide-angle, high resolving power, object lens of large relative aperture, the advantage such as wide spectral is confocal, imaging is good.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: the super clear pick-up lens of a kind of CS interface plastic construction, in the optical system of described camera lens along light from left to right incident direction be respectively equipped with focal power be negative before organize A, diaphragm C and focal power are rear group of positive B, the first gummed group that before described, group A is provided with negative selenodont lens A-1 successively and is touched by biconcave lens A-2 and biconvex lens A-3, described rear group of B is provided with biconvex lens B-1 successively, negative selenodont lens B-2, the second gummed group of being touched by negative selenodont lens B-3 and biconvex lens B-4, negative selenodont lens B-5 and the 3rd gummed group of being touched by biconvex lens B-6 and negative selenodont lens B-7.
In further technical scheme, the airspace between described front group of A and rear group of B is 20.236mm.
In further technical scheme, the negative selenodont lens A-1 before described in group A and the airspace between the first gummed group are 5.867mm.
In further technical scheme, the airspace between described first gummed group and diaphragm C is 13.957mm, and the airspace between described diaphragm C and biconvex lens B-1 is 6.279mm.
In further technical scheme, biconvex lens B-1 in described rear group of B and the airspace between negative selenodont lens B-2 are 1.517mm, airspace between described negative selenodont lens B-2 and the second gummed group is 0.900mm, airspace between described second gummed group and negative selenodont lens B-5 is 0.900mm, and the airspace between described negative selenodont lens B-5 and the 3rd gummed group is 1.370mm.
In further technical scheme, the physical construction of described camera lens comprises front outer cover and rear outer cover, described front outer cover front end is provided with focusing runner, described rear outer cover rear end is provided with CS interface, be provided with between described rear outer cover and CS interface and turn to shell fragment, described front group of A and rear group of B forms trigger camera lens, described focusing runner, front outer cover, rear outer cover, shell fragment and CS interface is turned to be directly installed on trigger camera lens, in the cover body of described front outer cover and rear outer cover composition, CD-ROM drive is installed, described front outer cover sidewall is provided with front locking nail, described rear outer cover sidewall is provided with rear locking nail.
Compared with prior art, the present invention has following beneficial effect:
(1) this camera lens reasonable distribution focal power of front group of A and rear group of B in retrofocus type optical texture, in rear group of B, 3rd arrangement of mirrors sheet of traditional three-chip type Ke Ke type structure is changed into cemented doublet group, makes camera lens reach the short performance index of object lens of large relative aperture, wide-angle, structure length.
(2) this camera lens is by the optical glass material of reasonable selection forward and backward two groups ten seven groups, selects the optical glass material (such as H-FK61 optical material etc.) of high index of refraction, low dispersion as far as possible; By area of computer aided optical design and optimization, correct the various aberrations of optical lens perfectly, the resolution of camera lens is greatly improved, the requirement of 3,000,000 pixel high definition video shootings can be adapted to.
(3) this camera lens is when optical design, carries out aberration correction and balance to the wide spectral range of 480nm ~ 850nm, makes camera lens have excellent picture element at wide spectral range, achieves wide spectral confocal.This camera lens can not only blur-free imaging under photoenvironment in the daytime, night pole low-light (level) or zero illumination environment under also can blur-free imaging by infrared light filling, the monitoring continuously that achieves 24 hours, and when day and night switching not defocusing, focus without the need to scene.
(4) this camera lens uses reinforced plastic, have high strength and elasticity coefficient, high impact, serviceability temperature scope are wide, electrical specification is excellent, is easily moulded and makes, and the consistance of camera lens batch production is good, yield is high, rear burnt consistance is good etc. advantage, be conducive to raising camera lens production efficiency.
(5) trigger camera lens directly can be converted to CS camera lens by this camera lens, do not affect imaging effect and easy installation and removal, achieve the efficient conversion of trigger camera lens and CS camera lens, overcome the shortcoming of existing high-precision mold camera lens CS interface, avoid the accumulation of camera lens or supply falls short of demand.
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Accompanying drawing explanation
Fig. 1 is the optical system schematic diagram of the embodiment of the present invention.
Fig. 2 is the physical construction schematic diagram of the embodiment of the present invention.
In figure: 1-focuses on runner, outer cover before 2-, 3-CD-ROM drive, outer cover after 4-, and 5-turns to shell fragment, 6-CS interface, locking nail after 7-, locking nail before 8-, 9-trigger camera lens; Group before A-, A-1-bears selenodont lens, A-2-biconcave lens, A-3-biconvex lens, group after B-, B-1-biconvex lens, B-2-bears selenodont lens, and B-3-bears selenodont lens, B-4-biconvex lens, B-5-bears selenodont lens, B-6-biconvex lens, and B-7-bears selenodont lens, C-diaphragm.
Embodiment
As shown in Figure 1, the super clear pick-up lens of a kind of CS interface plastic construction, in the optical system of described camera lens along light from left to right incident direction be respectively equipped with focal power be negative before organize A, diaphragm C and focal power are rear group of positive B, the first gummed group that before described, group A is provided with negative selenodont lens A-1 successively and is touched by biconcave lens A-2 and biconvex lens A-3, described rear group of B is provided with biconvex lens B-1 successively, negative selenodont lens B-2, the second gummed group of being touched by negative selenodont lens B-3 and biconvex lens B-4, negative selenodont lens B-5 and the 3rd gummed group of being touched by biconvex lens B-6 and negative selenodont lens B-7.
In the present embodiment, the airspace between described front group of A and rear group of B is 20.236mm; Negative selenodont lens A-1 before described in group A and the airspace between the first gummed group are 5.867mm; Airspace between described first gummed group and diaphragm C is 13.957mm, and the airspace between described diaphragm C and biconvex lens B-1 is 6.279mm; Biconvex lens B-1 in described rear group of B and the airspace between negative selenodont lens B-2 are 1.517mm, airspace between described negative selenodont lens B-2 and the second gummed group is 0.900mm, airspace between described second gummed group and negative selenodont lens B-5 is 0.900mm, and the airspace between described negative selenodont lens B-5 and the 3rd gummed group is 1.370mm.In order to improve optical property, all eyeglasses of this camera lens all adopt the optical material of high refraction, low dispersion, such as H-FK61 optical material etc.
In the present embodiment, the optical system be made up of above-mentioned lens set reaches following optical index: (1) focal length: f '=3.0mm ~ 10.5mm; (2) relative aperture D/F=1/1.4; (3) field angle: 2 ω=132 ° ~ 35.5 ° (effective imaging surface n ' >=φ 6.72mm); (4) resolution: adaptive with the high-definition camera of 3,000,000 pixels; (5) light path overall length ∑ L≤50mm; (6) spectral line scope: 480nm ~ 850nm is suitable for.
Because the resolution of this camera lens is very high, and the resolution of peripheral field and central market does not allow to make a big difference, so will guarantee the accurate, steadily and good hand touch of the actions such as the concentricity of each constituent element of system and focusing in Design of Mechanical Structure.
As shown in Figure 2, physical construction of the present invention comprises front outer cover 2 and rear outer cover 4, described front outer cover 2 front end is provided with and focuses on runner 1, described rear outer cover 4 rear end is provided with CS interface 6, be provided with between described rear outer cover 4 and CS interface 6 and turn to shell fragment 5, described front group of A and rear group of B forms trigger camera lens 9, described focusing runner 1, front outer cover 2, rear outer cover 4, shell fragment 5 and CS interface 6 is turned to be directly installed on trigger camera lens 9, in the cover body that described front outer cover 2 and rear outer cover 4 form, CD-ROM drive 3 is installed, described front outer cover 2 sidewall is provided with front locking nail 8, described rear outer cover 4 sidewall is provided with rear locking nail 7.The material of the focusing runner 1 of this camera lens, front outer cover 2, rear outer cover 4 and CS interface 6 adopts reinforced plastic, can be specifically 80%PC+20% glass.
During assembling, only need will focus on runner 1, front outer cover 2, rear outer cover 4, turn to shell fragment 5 and these five parts of CS interface 6 to be directly installed on trigger camera lens 9, and install CD-ROM drive 3, rear locking nail 7, front locking nail 8 and just directly trigger camera lens 9 can be converted to CS camera lens, do not affect imaging effect, achieve the efficient conversion of trigger camera lens 9 and CS camera lens.
The foregoing is only preferred embodiment of the present invention, all equalizations done 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 (5)

1. the super clear pick-up lens of CS interface plastic construction, it is characterized in that: in the optical system of described camera lens along light from left to right incident direction be respectively equipped with focal power be negative before organize A, diaphragm C and focal power are rear group of positive B, the first gummed group that before described, group A is provided with negative selenodont lens A-1 successively and is touched by biconcave lens A-2 and biconvex lens A-3, described rear group of B is provided with biconvex lens B-1 successively, negative selenodont lens B-2, the second gummed group of being touched by negative selenodont lens B-3 and biconvex lens B-4, negative selenodont lens B-5 and the 3rd gummed group of being touched by biconvex lens B-6 and negative selenodont lens B-7, the physical construction of described camera lens comprises front outer cover and rear outer cover, described front outer cover front end is provided with focusing runner, described rear outer cover rear end is provided with CS interface, be provided with between described rear outer cover and CS interface and turn to shell fragment, described front group of A and rear group of B forms trigger camera lens, described focusing runner, front outer cover, rear outer cover, shell fragment and CS interface is turned to be directly installed on trigger camera lens, in the cover body of described front outer cover and rear outer cover composition, CD-ROM drive is installed, described front outer cover sidewall is provided with front locking nail, and described rear outer cover sidewall is provided with rear locking nail.
2. the super clear pick-up lens of CS interface plastic construction according to claim 1, is characterized in that: the airspace between described front group of A and rear group of B is 20.236mm.
3. the super clear pick-up lens of CS interface plastic construction according to claim 1 and 2, is characterized in that: the negative selenodont lens A-1 before described in group A and the airspace between the first gummed group are 5.867mm.
4. the super clear pick-up lens of CS interface plastic construction according to claim 1 and 2, is characterized in that: the airspace between described first gummed group and diaphragm C is 13.957mm, and the airspace between described diaphragm C and biconvex lens B-1 is 6.279mm.
5. the super clear pick-up lens of CS interface plastic construction according to claim 1 and 2, it is characterized in that: the biconvex lens B-1 in described rear group of B and the airspace between negative selenodont lens B-2 are 1.517mm, airspace between described negative selenodont lens B-2 and the second gummed group is 0.900mm, airspace between described second gummed group and negative selenodont lens B-5 is 0.900mm, and the airspace between described negative selenodont lens B-5 and the 3rd gummed group is 1.370mm.
CN201310355361.3A 2013-08-15 2013-08-15 Super-definition camera lens adopting plastic CS interface structure Active CN103389563B (en)

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CN105158886B (en) * 2015-10-10 2017-10-03 福建福光股份有限公司 2.8 12mm zoom aspheric lenses

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CN100501490C (en) * 2004-09-15 2009-06-17 株式会社尼康 Wide zoom lens system
JP5056184B2 (en) * 2006-06-22 2012-10-24 株式会社ニコン Zoom lens, imaging device, zoom lens zooming method
EP2045639A4 (en) * 2006-07-21 2012-06-13 Nikon Corp Variable power optical system, imaging device, method of varying magnification of variable power optical system
JP2008241904A (en) * 2007-03-26 2008-10-09 Nidec Copal Corp Zoom lens
CN103176263B (en) * 2013-02-20 2015-10-28 福建福光股份有限公司 Three mega pixel day and night P-iris camera lenses
CN103116213B (en) * 2013-02-20 2016-03-30 福建福光股份有限公司 Three mega pixels are confocal trigger camera lens day and night
CN203422520U (en) * 2013-08-15 2014-02-05 福建福光数码科技有限公司 Plastic CS mount ultra-clear camera lens

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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.

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Owner name: FUJIAN FORECAM CO., LTD.

Free format text: FORMER NAME: FUJIAN FORECAM DIGITAL TECHNOLOGY CO., LTD.