CN204229040U - Large target surface high-precision mold high definition zoom monitoring camera - Google Patents

Large target surface high-precision mold high definition zoom monitoring camera Download PDF

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Publication number
CN204229040U
CN204229040U CN201420729732.XU CN201420729732U CN204229040U CN 204229040 U CN204229040 U CN 204229040U CN 201420729732 U CN201420729732 U CN 201420729732U CN 204229040 U CN204229040 U CN 204229040U
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CN
China
Prior art keywords
lens
crescent moon
gummed
target
negative crescent
Prior art date
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Withdrawn - After Issue
Application number
CN201420729732.XU
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Chinese (zh)
Inventor
朱艳文
肖维军
唐礼量
林平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujian Forecam Optics Co Ltd
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Fujian Forecam Optics Co Ltd
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Priority to CN201420729732.XU priority Critical patent/CN204229040U/en
Application granted granted Critical
Publication of CN204229040U publication Critical patent/CN204229040U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of large target surface high-precision mold high definition zoom monitoring camera, the optical system of described camera lens along light direction be provided with successively focal power be negative before organize A, iris C and focal power are rear group of positive B, the first gummed group that before described, group A is provided with negative crescent moon 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 by biconvex lens B-1 successively, negative crescent moon lens B-2, negative crescent moon lens B-3, the second gummed group of being touched by biconvex lens B-4 and biconcave lens B-5 and the 3rd gummed group of being touched by biconvex lens B-6 and negative crescent moon lens B-7.The utility model reasonable distribution focal power of front group of A and rear group of B, adopts cemented doublet group, makes camera lens reach the performance index of object lens of large relative aperture, wide-angle, short, the large space of a whole page of structure length, high definition pixel in rear group of B.

Description

Large target surface high-precision mold high definition zoom monitoring camera
Technical field
The utility model relates to the imaging lens device of miniature video camera system, particularly a kind of large target surface high-precision mold high definition zoom monitoring camera.
Background technology
Micro television CCTV camera occurs existing 20 ~ 30 years till now, and through innovation for many years and development, the pick-up lens forming different series plurality of specifications model at present supports the use with it.But the performance index of these camera lenses are very different, far can not meet the demand of high-end market, large target surface, high resolving power, that high-quality becomes client is required.Meanwhile, along with the fast development of science and technology, the improving gradually of people's awareness of safety, the developing rapidly of safe protection engineering, the requirement of people to lens quality quality is also more and more higher, in monitoring, then need wider monitoring.
Utility model content
In order to meet high-end customer needs, improve the validity of image quality also original picture, expand monitoring range, overcome low pixel camera camera lens prior art performance index this defect low, the purpose of this utility model be for high-end market a kind of large target surface be provided, be better than 8,000,000 pixels, the large target surface high-precision mold high definition zoom monitoring camera of CS interface camera lens.
To achieve these goals, the technical solution of the utility model is: a kind of large target surface high-precision mold high definition zoom monitoring camera, the optical system of described camera lens along light direction be provided with successively focal power be negative before organize A, iris C and focal power are rear group of positive B, the first gummed group that before described, group A is provided with negative crescent moon 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 crescent moon lens B-2, negative crescent moon lens B-3, the second gummed group of being touched by biconvex lens B-4 and biconcave lens B-5 and the 3rd gummed group of being touched by biconvex lens B-6 and negative crescent moon lens B-7.
Further, the airspace between described front group of A and rear group of B is 22.137mm.
Further, the negative crescent moon lens A-1 in described front group A and the airspace between the first gummed group are 3.893mm.
Further, the first gummed group in described front group A and the airspace between iris C are 2mm ~ 14.528mm.
Further, the airspace between the biconvex lens B-1 of described iris C and rear group of B is 0.5mm ~ 7.551mm.
Further, airspace between the biconvex lens B-1 of described rear group of B and negative crescent moon lens B-2 is 0.316mm, airspace between described negative crescent moon lens B-2 and negative crescent moon lens B-3 is 0.86mm, airspace between described negative crescent moon lens B-3 and the second gummed group is 0.86mm, and the airspace between described second gummed group and the 3rd gummed group is 0.688mm.
Further, the physical construction of described camera lens comprises and is arranged on front arrangement of mirrors seat in body tube and rear arrangement of mirrors seat, described body tube is provided with successively and focuses on runner, front outer cover, rear outer cover, turn to shell fragment and CS interface, described body tube is provided with CD-ROM drive between front outer cover and rear outer cover, described front outer cover being provided with for locking locking nail before front arrangement of mirrors seat, described rear outer cover being provided with the rear locking nail for locking rear arrangement of mirrors seat.
Further, the physical construction of described camera lens adopts reinforced plastic.
Compared with prior art, the utility model has the following advantages:
(1) in the optical system of retrofocus type, the reasonable distribution focal power of front group of A and rear group of B; In rear group of B, fourth, fifth eyeglass of three-chip type Ke Ke type structure is changed into cemented doublet group, to share the focal power of rear group of B, be beneficial to and improve camera lens relative aperture, be beneficial to the aberration correction of camera lens, especially the correction of wide spectral aberration, makes camera lens reach the performance index of object lens of large relative aperture, wide-angle, short, the large space of a whole page of structure length, high definition pixel.
(2) by the optical glass material of reasonable selection forward and backward two groups ten seven groups, select the optical glass material 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, make the resolution of camera lens high, the requirement of 8,000,000 pixel high definition video shootings can be adapted to.
(3) this camera lens uses reinforced plastic, and 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.
(4) in structural design, under the prerequisite not affecting imaging effect, directly trigger interface conversion is become CS interface, improve camera lens yield rate.
Below in conjunction with the drawings and specific embodiments, elaboration detailed is further done to the utility model.
Accompanying drawing explanation
Fig. 1 is the optical system diagram of the utility model embodiment.
Fig. 2 is the mechanical construction drawing of the utility model embodiment.
In figure: before A-, group A, A-1-bear crescent moon lens A-1, A-2-biconcave lens A-2, A-3-biconvex lens A-3, organize B after B-, B-1-biconvex lens B-1, B-2-bear crescent moon lens B-2, B-3-bears crescent moon lens B-3, B-4-biconvex lens B-4, B-5-biconcave lens B-5, B-6-biconvex lens B-6, B-7-bears crescent moon lens B-7, C-iris C; 1-body tube, arrangement of mirrors seat before 2-, arrangement of mirrors seat after 3-, 4-focuses on runner, outer cover before 5-, outer cover after 6-, and 7-turns to shell fragment, 8-CS interface, 9-CD-ROM drive, locking nail before 10-, locking nail after 11-.
Embodiment
As shown in Figure 1, a kind of large target surface high-precision mold high definition zoom monitoring camera, the optical system of described camera lens along light from left to right incident direction be provided with successively focal power be negative before organize A, iris C and focal power are rear group of positive B, the first gummed group that before described, group A is provided with negative crescent moon 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 crescent moon lens B-2, negative crescent moon lens B-3, the second gummed group of being touched by biconvex lens B-4 and biconcave lens B-5 and the 3rd gummed group of being touched by biconvex lens B-6 and negative crescent moon lens B-7.
In the present embodiment, airspace between described front group of A and rear group of B is 22.137mm, the first gummed group before described in group A and the airspace between iris C are 2mm ~ 14.528mm, and the airspace between the biconvex lens B-1 of described iris C and rear group of B is 0.5mm ~ 7.551mm.
In the present embodiment, the negative crescent moon lens A-1 in described front group A and the airspace between the first gummed group are 3.893mm; Airspace between the biconvex lens B-1 of described rear group of B and negative crescent moon lens B-2 is 0.316mm, airspace between described negative crescent moon lens B-2 and negative crescent moon lens B-3 is 0.86mm, airspace between described negative crescent moon lens B-3 and the second gummed group is 0.86mm, and the airspace between described second gummed group and the 3rd gummed group is 0.688mm.
In the present embodiment, for catering to market, this lens design becomes 1/1.8 " target surface, focal length 3.6 ~ 10mm, 8,000,000 pixels high definition zoom CS interface die camera lens, its optical index reached is as follows: (1) focal length: f '=3.6 ~ 10mm; (2) relative aperture: D/F=1/1.5; (3) field angle 2 ω: 109 ° ~ 42 ° (effective imaging surface n ' >=φ 8.93mm); (4) spectral range: 480nm ~ 850nm is suitable for; (5) resolution: adaptive with the high-definition camera of 8,000,000 pixels; (6) light path overall length ∑ L≤54mm.
As shown in Figure 2, the physical construction of described camera lens comprises and is arranged on front arrangement of mirrors seat 2 in body tube 1 and rear arrangement of mirrors seat 3, described body tube 1 is provided with successively and focuses on runner 4, front outer cover 5, rear outer cover 6, turn to shell fragment 7 and CS interface 8, described body tube 1 is provided with CD-ROM drive 9 between front outer cover 5 and rear outer cover 6, described front outer cover 5 is provided with for locking locking nail 10 before front arrangement of mirrors seat 2, described rear outer cover 6 is provided with the rear locking nail 11 for locking rear arrangement of mirrors seat 3, directly can be converted to CS camera lens by trigger camera lens, do not affect imaging effect, achieve the efficient conversion realizing trigger camera lens and CS camera lens.
In the present embodiment, because the resolution of this camera lens is very high, and the resolution of peripheral field and central market does not allow very large 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 structural design.Therefore, the physical construction of this camera lens have employed reinforced plastic, first devising front arrangement of mirrors seat 2 and rear arrangement of mirrors seat 3, suppressing by adopting, eyeglass ensureing coaxial basis is blended on those microscope bases by the technology that melts, the consistance that camera lens is produced in batches is good, yield is high; Again those microscope bases are matched with in the body tube 1 of trigger camera lens.
The utility model is the reasonable distribution focal power of front group of A and rear group of B in optical system, physical construction use reinforced plastic to improve camera lens yield, rear burnt consistance, and direct installation focuses on runner 4, front outer cover 5, rear outer cover 6, turns to shell fragment 7, CS interface 8 five parts on trigger interface camera lens basis, trigger interface camera lens is converted to CS interface camera lens and does not affect imaging effect, and easy installation and removal.The utility model improves the requirement of people to video camera, can adapt to the requirement of 8,000,000 pixel high definition video shootings, large space of a whole page imaging.And camera lens uses reinforced plastic, promote camera lens production efficiency, meet the need of market.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.

Claims (8)

1. a large target surface high-precision mold high definition zoom monitoring camera, it is characterized in that: the optical system of described camera lens along light direction be provided with successively focal power be negative before organize A, iris C and focal power are rear group of positive B, the first gummed group that before described, group A is provided with negative crescent moon 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 crescent moon lens B-2, negative crescent moon lens B-3, the second gummed group of being touched by biconvex lens B-4 and biconcave lens B-5 and the 3rd gummed group of being touched by biconvex lens B-6 and negative crescent moon lens B-7.
2. large target surface high-precision mold high definition zoom monitoring camera according to claim 1, is characterized in that: the airspace between described front group of A and rear group of B is 22.137mm.
3. large target surface high-precision mold high definition zoom monitoring camera according to claim 1 and 2, is characterized in that: the negative crescent moon lens A-1 before described in group A and the airspace between the first gummed group are 3.893mm.
4. large target surface high-precision mold high definition zoom monitoring camera according to claim 1 and 2, is characterized in that: the first gummed group before described in group A and the airspace between iris C are 2mm ~ 14.528mm.
5. large target surface high-precision mold high definition zoom monitoring camera according to claim 1 and 2, is characterized in that: the airspace between the biconvex lens B-1 of described iris C and rear group of B is 0.5mm ~ 7.551mm.
6. large target surface high-precision mold high definition zoom monitoring camera according to claim 1 and 2, it is characterized in that: the airspace between the biconvex lens B-1 of described rear group of B and negative crescent moon lens B-2 is 0.316mm, airspace between described negative crescent moon lens B-2 and negative crescent moon lens B-3 is 0.86mm, airspace between described negative crescent moon lens B-3 and the second gummed group is 0.86mm, and the airspace between described second gummed group and the 3rd gummed group is 0.688mm.
7. large target surface high-precision mold high definition zoom monitoring camera according to claim 1, it is characterized in that: the physical construction of described camera lens comprises and is arranged on front arrangement of mirrors seat in body tube and rear arrangement of mirrors seat, described body tube is provided with successively and focuses on runner, front outer cover, rear outer cover, turn to shell fragment and CS interface, described body tube is provided with CD-ROM drive between front outer cover and rear outer cover, described front outer cover being provided with for locking locking nail before front arrangement of mirrors seat, described rear outer cover being provided with the rear locking nail for locking rear arrangement of mirrors seat.
8. large target surface high-precision mold high definition zoom monitoring camera according to claim 7, is characterized in that: the physical construction of described camera lens adopts reinforced plastic.
CN201420729732.XU 2014-11-29 2014-11-29 Large target surface high-precision mold high definition zoom monitoring camera Withdrawn - After Issue CN204229040U (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104360467A (en) * 2014-11-29 2015-02-18 福建福光数码科技有限公司 Large-target-surface high-precision mold high-definition zooming monitoring lens
CN105353500A (en) * 2015-12-14 2016-02-24 福建福光股份有限公司 Low-sensitivity high-definition zoom lens

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104360467A (en) * 2014-11-29 2015-02-18 福建福光数码科技有限公司 Large-target-surface high-precision mold high-definition zooming monitoring lens
CN104360467B (en) * 2014-11-29 2016-09-21 福建福光股份有限公司 Big target surface high-precision mold high definition zoom monitoring camera
CN105353500A (en) * 2015-12-14 2016-02-24 福建福光股份有限公司 Low-sensitivity high-definition zoom lens

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Legal Events

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GR01 Patent grant
C14 Grant of patent or utility model
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.

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.

AV01 Patent right actively abandoned

Granted publication date: 20150325

Effective date of abandoning: 20160921

C25 Abandonment of patent right or utility model to avoid double patenting