CN104459959A - High-resolution 3.6-mm fixed-focus miniature lens - Google Patents

High-resolution 3.6-mm fixed-focus miniature lens Download PDF

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Publication number
CN104459959A
CN104459959A CN201410777009.3A CN201410777009A CN104459959A CN 104459959 A CN104459959 A CN 104459959A CN 201410777009 A CN201410777009 A CN 201410777009A CN 104459959 A CN104459959 A CN 104459959A
Authority
CN
China
Prior art keywords
lens
resolving power
biconvex
optical
gummed
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.)
Pending
Application number
CN201410777009.3A
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Chinese (zh)
Inventor
叶维森
刘任重
杨樟洪
辛历东
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
Original Assignee
Fujian Forecam Optics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujian Forecam Optics Co Ltd filed Critical Fujian Forecam Optics Co Ltd
Priority to CN201410777009.3A priority Critical patent/CN104459959A/en
Publication of CN104459959A publication Critical patent/CN104459959A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00Optical objectives specially designed for the purposes specified below
    • G02B13/001Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/021Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens

Abstract

The invention relates to a high-resolution 3.6-mm fixed-focus miniature lens. The high-resolution 3.6-mm fixed-focus miniature lens comprises an optical system arranged in a primary mirror tube. The optical system comprises a negative crescent lens, a biconvex lens A, a biconvex lens B and a gluing set closely connected with a positive crescent lens, wherein the negative crescent lens, the biconvex lens A, the biconvex lens B and the gluing set are sequentially arranged in the incidence direction of light. Compared with the prior art, the lens adopts the combination of four lenses instead of six lenses in the past, so that the cost is lowered, meanwhile, the requirement of image quality is guaranteed, the performance cost ratio is high, the pixel is high, the size is small, the mass is light, the structure is light, and the requirement that the total size is small is met.

Description

High resolving power 3.6mm focuses micro-lens
Technical field
The present invention relates to a kind of high resolving power 3.6mm and focus micro-lens.
Background technology
Appearance and the application of micro television CCTV camera have the history of 20 ~ 30 years; there is the micro pick-up lens of varied specifications and models supporting with it. their performance index are very different; great majority belong to low grade products, and performance index are low, only adapt to the common camera of 20 ~ 300,000 pixels; The spectral range adapted to is narrow, can only use in the daytime of 480nm ~ 700nm under light condition; Pattern distortion amount is large, and pattern distortion and visions of reality picture difference become large, and authenticity is poor.
Summary of the invention
The object of the invention is for above weak point, provide a kind of low distortion, resolution is better than 3,000,000 pixels, the high resolving power 3.6mm of day and night micro pick-up lens focuses micro-lens.
The scheme that technical solution problem of the present invention adopts is that a kind of high resolving power 3.6mm focuses micro-lens, comprise the optical system be arranged in primary mirror bucket, described optical system is the gummed group that the negative selenodont lens, biconvex lens A and the biconvex lens B that set gradually along light direction and positive selenodont lens touch.
Further, the airspace between described negative selenodont lens and biconvex lens A is 7.65mm.
Further, the airspace between described biconvex lens A and gummed group is 1mm.
Further, be provided with the first spacer ring between described negative selenodont lens, biconvex lens A, between described biconvex lens A and gummed group, be provided with the second spacer ring.
Further, described negative selenodont lens, biconvex lens A and gummed group are the optical glass material of low dispersion, high refraction.
Further, described primary mirror bucket is that high-precision mold injection forms.
Further, described primary mirror bucket inside is provided with some positioning boss for positioning optical system components.
Further, the described negative selenodont focal length of lens is-11.01mm, and described biconvex lens A focal length is 5.18mm, and described gummed group focal length is 0.75mm.
Further, when optical design, aberration correction and balance are carried out to the wide spectral range of 485 ~ 850nm, make camera lens all have excellent picture element at wide spectral range.
Compared with prior art, the present invention has following beneficial effect: camera lens forms four lens combinations by original six eyeglasses by change, reduces costs simultaneously, ensure that picture element requirement, cost performance is high, pixel is high, volume is little, quality is light, light structure, meets the principle that overall volume is little.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, patent of the present invention is further illustrated.
Fig. 1 is structural representation of the present invention;
In figure:
1-bears selenodont lens; 2-first spacer ring; 3-biconvex lens A; 4-second spacer ring; 5-gummed group; 6-primary mirror bucket.
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
As shown in Figure 1, a kind of high resolving power 3.6mm focuses micro-lens, comprise the optical system be arranged in primary mirror bucket 6, described optical system is the gummed group 5 that the negative selenodont lens 1, biconvex lens A3 and the biconvex lens B that set gradually along light direction and positive selenodont lens touch, the glass of low-refraction selected by negative selenodont lens 1, strengthen with the slanted angle of optical axis, after the eyeglass refraction of biconvex lens 3 and gummed group 5, the angle of chief ray and optical axis reduces, and makes camera lens achieve excellent aberration correction.Biconvex lens A3 is set, effectively utilizes the aberration that it carrys out corrective lens, make the resolution of camera lens up to 3,000,000 pixels.
 
In the present embodiment, the airspace between described negative selenodont lens 1 and biconvex lens A3 is 7.65mm.
In the present embodiment, the airspace between described biconvex lens A3 and gummed group 5 is 1mm.
In the present embodiment, be provided with the first spacer ring 2 between described negative selenodont lens 1, biconvex lens A3, between described biconvex lens A3 and gummed group 5, be provided with the second spacer ring 4.
In the present embodiment, described negative selenodont lens 1, biconvex lens A3 and gummed group 5 are the optical glass material of low dispersion, high refraction, the field angle being corrected optical lens by computer optics Computer Aided Design and optimization makes camera lens realize high resolving power, more meets the requirement of high definition video shooting.
In the present embodiment, described primary mirror bucket 6 forms for high-precision mold injection, ensure that the coaxial precision of optical requirement.
In the present embodiment, described primary mirror bucket 6 inside is provided with some positioning boss for positioning optical system components.
In the present embodiment, described negative selenodont lens 1 focal length is-11.01mm, and described biconvex lens A3 focal length is 5.18mm, and described gummed group 5 focal length is 0.75mm.
In the present embodiment, when optical design, aberration correction and balance are carried out to the wide spectral range of 485 ~ 850nm, make camera lens all have excellent picture element at wide spectral range, achieve wide spectral confocal.
In the present embodiment, this camera lens reaches following optical index: (1) focal length: f '=3.6mm; (2) relative aperture F=2.0; (3) field angle: 2w≤156 °; (4) resolution: can be adaptive with 5,000,000 pixel high-resolution CCD or cmos camera; (5) light path overall length ∑≤18.6 mm, optics rear cut-off distance l ' >=5.1mm; (6) spectral line scope: 480nm ~ 850nm is suitable for.
Above-listed preferred embodiment; the object, technical solutions and advantages of the present invention are further described; be understood that; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention; within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (9)

1. a high resolving power 3.6mm focuses micro-lens, it is characterized in that: comprise the optical system be arranged in primary mirror bucket, described optical system is the gummed group that the negative selenodont lens, biconvex lens A and the biconvex lens B that set gradually along light direction and positive selenodont lens touch.
2. the high resolving power 3.6mm according to claims 1 focuses micro-lens, it is characterized in that: the airspace between described negative selenodont lens and biconvex lens A is 7.65mm.
3. the high resolving power 3.6mm according to claims 1 focuses micro-lens, it is characterized in that: the airspace between described biconvex lens A and gummed group is 1mm.
4. the high resolving power 3.6mm according to claims 1 focuses micro-lens, it is characterized in that: be provided with the first spacer ring between described negative selenodont lens, biconvex lens A, be provided with the second spacer ring between described biconvex lens A and gummed group.
5. the high resolving power 3.6mm according to claims 1 focuses micro-lens, it is characterized in that: described negative selenodont lens, biconvex lens A and gummed group are the optical glass material of low dispersion, high refraction.
6. the high resolving power 3.6mm according to claims 1 focuses micro-lens, it is characterized in that: described primary mirror bucket is that high-precision mold injection forms.
7. the high resolving power 3.6mm according to claims 6 focuses micro-lens, it is characterized in that: described primary mirror bucket inside is provided with some positioning boss for positioning optical system components.
8. the high resolving power 3.6mm according to claims 1 focuses micro-lens, it is characterized in that: the described negative selenodont focal length of lens is-11.01mm, and described biconvex lens A focal length is 5.18mm, and described gummed group focal length is 0.75mm.
9. the high resolving power 3.6mm according to claims 1 focuses micro-lens, it is characterized in that: 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.
CN201410777009.3A 2014-12-17 2014-12-17 High-resolution 3.6-mm fixed-focus miniature lens Pending CN104459959A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410777009.3A CN104459959A (en) 2014-12-17 2014-12-17 High-resolution 3.6-mm fixed-focus miniature lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410777009.3A CN104459959A (en) 2014-12-17 2014-12-17 High-resolution 3.6-mm fixed-focus miniature lens

Publications (1)

Publication Number Publication Date
CN104459959A true CN104459959A (en) 2015-03-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410777009.3A Pending CN104459959A (en) 2014-12-17 2014-12-17 High-resolution 3.6-mm fixed-focus miniature lens

Country Status (1)

Country Link
CN (1) CN104459959A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
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
WO2021189644A1 (en) * 2020-03-27 2021-09-30 东莞市宇瞳光学科技股份有限公司 Prime lens

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201133962Y (en) * 2007-12-25 2008-10-15 叶明华 Fixed focus lens with 8.0mm focus
CN201133961Y (en) * 2007-12-25 2008-10-15 叶明华 Fixed focus lens with 6.0mm focus
CN201166730Y (en) * 2007-12-25 2008-12-17 叶明华 Tight shot with focal distance of 4.0 mm
CN201464694U (en) * 2009-03-31 2010-05-12 河南同城光电有限公司 Afocal lens
CN103913818A (en) * 2014-04-08 2014-07-09 福建福光数码科技有限公司 Large-view-field low-distortion micro camera lens
CN204287590U (en) * 2014-12-17 2015-04-22 福建福光数码科技有限公司 High resolving power 3.6mm focuses micro-lens

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201133962Y (en) * 2007-12-25 2008-10-15 叶明华 Fixed focus lens with 8.0mm focus
CN201133961Y (en) * 2007-12-25 2008-10-15 叶明华 Fixed focus lens with 6.0mm focus
CN201166730Y (en) * 2007-12-25 2008-12-17 叶明华 Tight shot with focal distance of 4.0 mm
CN201464694U (en) * 2009-03-31 2010-05-12 河南同城光电有限公司 Afocal lens
CN103913818A (en) * 2014-04-08 2014-07-09 福建福光数码科技有限公司 Large-view-field low-distortion micro camera lens
CN204287590U (en) * 2014-12-17 2015-04-22 福建福光数码科技有限公司 High resolving power 3.6mm focuses micro-lens

Cited By (2)

* Cited by examiner, † Cited by third party
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
WO2021189644A1 (en) * 2020-03-27 2021-09-30 东莞市宇瞳光学科技股份有限公司 Prime lens

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SE01 Entry into force of request for substantive examination
COR Change of bibliographic data

Free format text: CORRECT: APPLICANT; FROM: FUJIAN FORECAM DIGITAL TECHNOLOGY CO., LTD. TO: FUJIAN FORECAM CO., LTD.

C53 Correction of patent for invention or patent application
CB02 Change of applicant information

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.

RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20150325