CN204496091U - The economic money micro-lens of high resolution day and night - Google Patents

The economic money micro-lens of high resolution day and night Download PDF

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Publication number
CN204496091U
CN204496091U CN201520095609.1U CN201520095609U CN204496091U CN 204496091 U CN204496091 U CN 204496091U CN 201520095609 U CN201520095609 U CN 201520095609U CN 204496091 U CN204496091 U CN 204496091U
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CN
China
Prior art keywords
lens
positive meniscus
night
meniscus lens
resolution
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Expired - Fee Related
Application number
CN201520095609.1U
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Chinese (zh)
Inventor
陈华萍
柳振全
杨樟洪
黄健欣
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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Filing date
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Priority to CN201520095609.1U priority Critical patent/CN204496091U/en
Application granted granted Critical
Publication of CN204496091U publication Critical patent/CN204496091U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the economic money micro-lens of a kind of high resolution day and night, along light direction be provided with successively focal power be negative before to organize A, iris C and focal power be rear group of positive B, before described, group A is provided with positive meniscus lens A-1, the gummed group that described rear group of B is provided with positive meniscus lens B-1 successively and is touched by biconvex lens B-2 and biconcave lens B-3.The retrofocus type light channel structure that this camera lens adopts positive negative power to be separated, has the advantages such as low distortion, object lens of large relative aperture, high resolving power, wide spectral be confocal; Its eyeglass can select the optical glass material of high refraction, low dispersion, by computer optics Computer Aided Design and correct optical lens various aberrations with optimizing, make the high and low distortion of the resolution of camera lens, the requirement of the high definition video shooting of 2,000,000 pixels can be adapted to.

Description

The economic money micro-lens of high resolution day and night
Technical field
The utility model relates to a kind of imaging lens device of supervisory system, particularly the economic money micro-lens of a kind of high resolution day and night.
Background technology
Along with the development of science and technology and society to day of high definition camera product demand to increase sharply, the market of camera lens obtains swift and violent development.Through evolution and the development of 20 ~ 30 years, the micro pick-up lens of multiple different size model and video camera is had to support the use at present.But the performance index of these camera lenses are very different, great majority belong to low grade products, performance index are low, the spectral range not only adapted to is narrow, can only use, and pattern distortion amount is larger in the daytime of 480nm ~ 700nm under light condition, pattern distortion and visions of reality picture difference become large, authenticity is poor, only adapts to the common camera of 20 ~ 300,000 pixels, can not meet current needs.
Utility model content
In order to meet the high definition demand of miniature video camera, promote the image quality of miniature video camera system, improve the authenticity of picture, expand the range of application of miniature camera system, overcome micro pick-up lens prior art performance index this defect low, the purpose of this utility model is to provide a kind of low distortion, the economic money micro-lens of wide spectral high resolution day and night that is confocal, that be better than 2,000,000 pixels.
To achieve these goals, the technical solution of the utility model is: the economic money micro-lens of a kind of high resolution day and night, along light direction be provided with successively focal power be negative before to organize A, iris C and focal power be rear group of positive B, before described, group A is provided with positive meniscus lens A-1, the gummed group that described rear group of B is provided with positive meniscus lens B-1 successively and is touched by biconvex lens B-2 and biconcave lens B-3.
Further, the airspace between described front group of A and rear group of B is 8.32mm.
Further, the positive meniscus lens B-1 in described rear group of B and the airspace of gummed group are 0.08mm.
Further, described rear group of B and front group of A is arranged in plastics body tube successively, described biconcave lens B-3 is located by the inward flange of body tube rear end, the second spacer ring is provided with between described biconvex lens B-2 and positive meniscus lens B-1, be provided with the first spacer ring between described positive meniscus lens B-1 and positive meniscus lens A-1, described positive meniscus lens A-1 is fixed by front trim ring.
Further, described first spacer ring adopts staged spacer ring.
Further, the external thread of described front trim ring matches with the internal thread of body tube front end.
Compared with prior art, the utility model has following beneficial effect:
(1) the retrofocus type light channel structure adopting positive negative power to be separated, has the advantages such as low distortion, object lens of large relative aperture, high resolving power, wide spectral be confocal.
(2) in structural design, adopt plastics body tube, reduce cost, and utilize stamper to suppress to make its structure compacter, stable, the air clearance in optics is more suitable, closer to standard, imaging is also good than metal lens barrel.
(3) eyeglass can select the optical glass material of high refraction, low dispersion, by computer optics Computer Aided Design and correct optical lens various aberrations with optimizing, make the high and low distortion of the resolution of camera lens, the requirement of the high definition video shooting of 2,000,000 pixels can be adapted to.
(4) both in conjunction with market optical parametric and solution as demand, degree of depth excavation is carried out on the basis of forefathers, ensure that comparatively loose tolerance simultaneously, thus accomplish higher cost performance.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
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: 1-body tube, 2-first spacer ring, 3-second spacer ring; Before A-, group A, A-1-positive meniscus lens A-1, organizes B after B-, B-1-positive meniscus lens B-1, B-2-biconvex lens B-2, B-3-biconcave lens B-3, C-iris C.
Embodiment
As shown in Figure 1, the economic money micro-lens of a kind of high resolution day and night, along light from left to right incident direction be provided with successively focal power be negative before to organize A, iris C and focal power be rear group of positive B, before described, group A is provided with positive meniscus lens A-1, the gummed group that described rear group of B is provided with positive meniscus lens B-1 successively and is touched by biconvex lens B-2 and biconcave lens B-3.
In the present embodiment, the airspace between described front group of A and rear group of B is 8.32mm, and the positive meniscus lens B-1 in described rear group of B and the airspace of gummed group are 0.08mm.
In the present embodiment, the optical system be made up of above-mentioned lens set reaches following optical index: (1) focal length: f '=6.0mm; (2) relative aperture F=2.0; (3) horizontal view angle: 1/3Full=47 °, 1/3.2Full=45 °; (4) TV distortion: 1/3Full " <-5%; (5) resolution: can be adaptive with 2,000,000 pixel high-resolution video cameras; (6) interface type: M12 × 0.5; (7) image planes size: 1/3 "; (8) aperture type: Fixed; (9) working temperature :-20 DEG C ~ 60 DEG C.
The utility model, when optical design, carries out aberration correction and balance to the wide spectral range of 485 ~ 850nm, makes camera lens all have excellent picture element at wide spectral range, achieves 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.The utility model can select the optical glass material of high refraction, low dispersion, by computer optics Computer Aided Design and optimization, corrects the various aberrations of optical lens, makes camera lens have the advantage such as high resolving power, object lens of large relative aperture, day and night confocal, low distortion.
As shown in Figure 2, described rear group of B and front group of A is arranged in plastics body tube 1 successively, described biconcave lens B-3 is located by the inward flange of body tube 1 rear end, the second spacer ring 3 is provided with between described biconvex lens B-2 and positive meniscus lens B-1, be provided with the first spacer ring 2 between described positive meniscus lens B-1 and positive meniscus lens A-1, described positive meniscus lens A-1 is fixed by front trim ring (omitting in figure).
In the present embodiment, described positive meniscus lens A-1 and positive meniscus lens B-1, after stamper is suppressed, limits interiors of products element degree of freedom, ensures stationarity and the stability of eyeglass assembling.Ensure that the spacer ring of eyeglass airspace and the plane of lens contacts will have accurate verticality to ensure the accuracy that eyeglass assembles in described body tube 1, therefore strict size Control is carried out to spacer ring bore inner diameter size, make it coordinate closely with eyeglass, reach the right alignment of eyeglass installation requirement and the consistance of lens light axis; And strict size and status requirement is had on body tube 1, its external diameter adopts M12 interface, meets the interface requirement that client uses video camera.
In the present embodiment, described first spacer ring 2 ensure that airspace and the optical axis assembling thereof of positive meniscus lens A-1 and positive meniscus lens B-1, and described second spacer ring 3 ensure that airspace and the optical axis assembling thereof of positive meniscus lens B-1 and gummed group; Wherein, described first spacer ring 2 adopts staged spacer ring.In addition, the external thread of described front trim ring matches with the internal thread of body tube 1 front end.
The utility model, when structural design, had both ensured the accurate of the concentricity of camera lens, precision and axial location, made again compact conformation small and exquisite, met the principle that overall volume is little, can be applicable to the occasion that structure is compacter, and its applicable surface is wider.Wherein, all constitutional details can adopt NC super machining technique, ensure the accuracy of its precision, meet the strict demand of optical design to air distance, make the compact conformation of camera lens, volume little, lightweight.
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 (6)

1. the economic money micro-lens of high resolution day and night, it is characterized in that: along light direction be provided with successively focal power be negative before to organize A, iris C and focal power be rear group of positive B, before described, group A is provided with positive meniscus lens A-1, the gummed group that described rear group of B is provided with positive meniscus lens B-1 successively and is touched by biconvex lens B-2 and biconcave lens B-3.
2. the economic money micro-lens of high resolution day and night according to claim 1, is characterized in that: the airspace between described front group of A and rear group of B is 8.32mm.
3. the economic money micro-lens of high resolution day and night according to claim 1 and 2, is characterized in that: the positive meniscus lens B-1 in described rear group of B and the airspace of gummed group are 0.08mm.
4. the economic money micro-lens of high resolution day and night according to claim 1, it is characterized in that: described rear group of B and front group of A is arranged in plastics body tube successively, described biconcave lens B-3 is located by the inward flange of body tube rear end, the second spacer ring is provided with between described biconvex lens B-2 and positive meniscus lens B-1, be provided with the first spacer ring between described positive meniscus lens B-1 and positive meniscus lens A-1, described positive meniscus lens A-1 is fixed by front trim ring.
5. the economic money micro-lens of high resolution day and night according to claim 4, is characterized in that: described first spacer ring adopts staged spacer ring.
6. the economic money micro-lens of high resolution day and night according to claim 4, is characterized in that: the external thread of described front trim ring matches with the internal thread of body tube front end.
CN201520095609.1U 2015-02-11 2015-02-11 The economic money micro-lens of high resolution day and night Expired - Fee Related CN204496091U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520095609.1U CN204496091U (en) 2015-02-11 2015-02-11 The economic money micro-lens of high resolution day and night

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520095609.1U CN204496091U (en) 2015-02-11 2015-02-11 The economic money micro-lens of high resolution day and night

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CN204496091U true CN204496091U (en) 2015-07-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104678535A (en) * 2015-02-11 2015-06-03 福建福光数码科技有限公司 High-resolution day and night dual-purpose economic miniature lens
CN105116512A (en) * 2015-09-21 2015-12-02 福建福光股份有限公司 Economical prime lens for M12 interfaces

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104678535A (en) * 2015-02-11 2015-06-03 福建福光数码科技有限公司 High-resolution day and night dual-purpose economic miniature lens
CN105116512A (en) * 2015-09-21 2015-12-02 福建福光股份有限公司 Economical prime lens for M12 interfaces
CN105116512B (en) * 2015-09-21 2017-10-31 福建福光股份有限公司 The economical tight shot of M12 interfaces

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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

Owner name: FUJIAN FORECAM CO., LTD.

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

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: 20150722

Termination date: 20170211