CN102819084B - High-speed camera camera lens - Google Patents
High-speed camera camera lens Download PDFInfo
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- CN102819084B CN102819084B CN201210306144.0A CN201210306144A CN102819084B CN 102819084 B CN102819084 B CN 102819084B CN 201210306144 A CN201210306144 A CN 201210306144A CN 102819084 B CN102819084 B CN 102819084B
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Abstract
The present invention relates to a kind of high-speed camera camera lens, comprise along light from left to right direction incidence be respectively equipped with focal power be negative before organize A and focal power is rear group of positive B, it is characterized in that: before described, group A is formed for negative crescent moon lens A-1, described rear group of B is provided with the gummed group of being touched by biconvex lens B-1 and biconcave lens B-2, the glue pellet of being touched by negative crescent moon lens B-3 and positive crescent moon B-4, biconvex lens B-5, the gummed group of being touched by biconvex lens B-6 and negative crescent moon lens B-7 successively.The present invention has object lens of large relative aperture, high resolving power, high permeability and the feature such as vibration resistance and impact; Select high index of refraction when light path design, the optical glass material of low dispersion, by computer optics Computer Aided Design and optimization, make imaging resolution up to 2,000,000 pixels, can be adaptive with the CCD of high definition or cmos camera, realize high definition video shooting.
Description
Technical field
The present invention relates to the high-speed camera camera lens of a kind of object lens of large relative aperture, high resolving power, high permeability and vibration resistance and impact, belong to camera lens field.
Background technology
Common pick-up lens is generally applied to indoor or the good outdoor application of environmental baseline, but can not meet the request for utilization of severe environmental conditions; Or the request for utilization of rugged surroundings can be adapted to, but do not meet the requirement of object lens of large relative aperture, high resolving power, high permeability.When environmental baseline is harsh, as high-intensity oscillation, impact and acceleration etc., camera lens and CCD relative position can be made to be subjected to displacement, to cause the theoretical image planes of pick-up lens and CCD image planes position not to overlap, thus occur the image blurring situation even not collecting image that CCD collects; Time serious, eyeglass also may be caused broken.
Along with the continuous appearance of 1,000,000 grades of pixel high-resolution CCD, cmos image sensor, require that pick-up lens has higher resolution characteristic to object scene, larger relative aperture; In special application scenario, also require that camera lens can adapt to rugged surroundings, there is good vibration resistance and the ability of impact, simultaneously the photosignal of energy quick obtaining object scene.
Summary of the invention
The object of the invention is to overcome above-mentioned defect, provide a kind of high-speed camera camera lens, this camera lens has the performance of object lens of large relative aperture, high resolving power, high permeability and vibration resistance and impact.
The invention is characterized in: a kind of high-speed camera camera lens, comprise along light from left to right direction incidence be respectively equipped with focal power be negative before organize A and focal power is rear group of positive B, it is characterized in that: before described, group A is formed for negative crescent moon lens A-1, described rear group of B is provided with the gummed group of being touched by biconvex lens B-1 and biconcave lens B-2, the glue pellet of being touched by negative crescent moon lens B-3 and positive crescent moon B-4, biconvex lens B-5, the gummed group of being touched by biconvex lens B-6 and negative crescent moon lens B-7 successively.
Along light direction, the airspace between described front group of A and rear group of B is 1.07mm; Along light direction, in described rear group of B, the airspace between the gummed group of being touched by biconvex lens B-1 and biconcave lens B-2 and the glue pellet of being touched by negative crescent moon lens B-3 and positive crescent moon B-4 is 2.55mm; Airspace between the glue pellet of being touched by negative crescent moon lens B-3 and positive crescent moon B-4 and biconvex lens B-5 is 0.15mm; Airspace between biconvex lens B-5 and the gummed group of being touched by biconvex lens B-6 and negative crescent moon lens B-7 is 0.15mm.
Advantage of the present invention:
The focal power of reasonable distribution front group of A and rear group of B in the optical texture of 1, this retrofocus type, in rear group of B, double gauss complex structure, makes camera lens reach the short performance index of object lens of large relative aperture, Large visual angle, high resolving power, structure length;
2, in optical design, Design of Temperature Compensation is carried out; The 2A12-T4 aluminium that employing expansion coefficient is lower and close with optical glass expansion coefficient is simultaneously the major mechanical material of camera lens, ensures the request for utilization of camera lens under high temperature and low temperature environment;
3, under the prerequisite ensureing compact conformation, adopt a series of measures, improve the ability of camera lens vibration resistance, impact;
4, pick-up lens adopts integrated design, has good watertightness performance.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention light channel structure schematic diagram.
Fig. 2 is optical lens structural representation of the present invention.
Wherein: 1. the gummed group that the spacer ring 11.GH microscope base 12. between the gummed group of holding glue pellet 8. that holding screw 5.AC microscope base 6. body tube 7. is being touched by negative crescent moon lens B-3 and positive crescent moon B-4 to bore to hold holding screw 9. biconvex lens B-510. biconvex lens B-5 and touched by biconvex lens B-6 and negative crescent moon lens B-7 is touched by biconvex lens B-6 and negative crescent moon lens B-7 bored by the gummed group 3.A sheet trim ring 4. that negative crescent moon lens A-12. is touched by biconvex lens B-1 and biconcave lens B-2.
Fig. 3 is the one-piece construction schematic diagram of the embodiment of the present invention.
Wherein: 1. screening glass trim ring 2. screening glass 3.O RunddichtringO 4. light shield 5. front shroud cylinder 6. hexagon socket cap head screw 7.O RunddichtringO 8. crossed pan head screw 9. optical lens 10.CCD imager 11. slotted cheese head screw
Cap 14. main body 15. underwater electrical connector modified by 12. cover plates 13..
Embodiment
With reference to figure 1, the present invention relates to a kind of high-speed camera camera lens, comprise along light from left to right direction incidence be respectively equipped with focal power be negative before organize A and focal power is rear group of positive B, before described, group A is formed for negative crescent moon lens A-1, and described rear group of B is provided with the gummed group of being touched by biconvex lens B-1 and biconcave lens B-2, the glue pellet of being touched by negative crescent moon lens B-3 and positive crescent moon B-4, biconvex lens B-5, the gummed group of being touched by biconvex lens B-6 and negative crescent moon lens B-7 successively.
Along light direction, the airspace between described front group of A and rear group of B is 1.07mm; Along light direction, in described rear group of B, the airspace between the gummed group of being touched by biconvex lens B-1 and biconcave lens B-2 and the glue pellet of being touched by negative crescent moon lens B-3 and positive crescent moon B-4 is 2.55mm; Airspace between the glue pellet of being touched by negative crescent moon lens B-3 and positive crescent moon B-4 and biconvex lens B-5 is 0.15mm; Airspace between biconvex lens B-5 and the gummed group of being touched by biconvex lens B-6 and negative crescent moon lens B-7 is 0.15mm.
With reference to figure 2, the present invention also comprises the body tube 6 installing lens, the AC microscope base 5 of gummed group that the front inner wall of described body tube 6 is provided with to install negative crescent moon lens A-1, is touched by biconvex lens B-1 and biconcave lens B-2, the rear end of described body tube 6 is connected with the GH microscope base 11 installing the gummed group of being touched by biconvex lens B-6 and negative crescent moon lens B-7.
Above-mentioned AC microscope base 5 and GH microscope base 11 are connected with body tube 6 through uniform cone end holding screw 8, and are marked with shellac on tie point.
Above-mentioned body tube front inner wall is provided with the A sheet trim ring 3 in order to fastening front group A.
The optical system be made up of above-mentioned lens set reaches following optical index:
Service band: 0.4um-0.8um;
Focal length: f '=10mm;
Image planes size: 1/3 ";
Field angle: 2 ω=27 ° × 20 °;
Relative aperture D/f ': 1/1.19;
Optical texture length ∑ L≤34.00mm;
Resolution of lens: with super mega pixel 1/3 " ccd video camera or cmos camera adaptation.
Specific implementation process:
When optical design, by choosing rational initial configuration and making it complicated, and rational material adapted, correct the various aberrations of optical lens perfectly, make camera lens reach the short requirement of object lens of large relative aperture, Large visual angle, high resolving power, structure length; In optical design optimizing process, consider that the thermal expansivity of different optical material is different, pass through optical design software, some different temperature nodes are got in the temperature range of-40 DEG C ~+60 DEG C, optical system is optimized, make the position of focal plane of optical system substantially be in same position in the temperature range of-40 DEG C ~+60 DEG C, thus the image quality of optical system is not substantially changed within the scope of different temperatures; By limiting minimum center, the edge thickness of eyeglass, be that camera lens possesses the capability foundation discussion bearing comparatively strong overload.
With reference to figure 2, optical lens part-structure is divided into two groups, front and back, and A-1, B-1, B-2, B-3, B-4 eyeglass loads from body tube 6 front portion, and B-5, B-6, B-7 eyeglass is loaded by body tube 6 rear portion; Be conducive to reducing assembly difficulty, improve efficiency of assembling, be convenient to the debugging of camera lens.Glue pellet and the A-1 eyeglass of the glue pellet of being touched by B-4 and B-3, AC lens barrel 5, B-1 and B-2 contiguity load in body tube 6 with reference to order shown in figure 1, and tighten up with A sheet trim ring 3; The glue pellet of B-5 eyeglass, GH spacer ring 10, B-6 and B-6 contiguity and GH microscope base 11 are pressed order shown in Fig. 1 load in body tube 6, and tighten up.Cone end holding screw 4 is loaded 3 threaded holes on body tube 6, cone end holding screw 8 is loaded 3 threaded holes on GH microscope base 11, note shellac is all put by all threaded engagement places, and the method contributes to the vibration resistance and the impact resistance that improve optical lens part, improves the anti-seismic performance of overall camera lens.The mechanical material of optical lens shown in Fig. 2 adopts expansion coefficient lower and the 2A12-T4 aluminium close with optical glass expansion coefficient, under high temperature or low temperature environment, expansion between optical lens optical glass and mechanical component is close with amount of contraction, be no more than reserved tolerance clearance between eyeglass and mechanical component, the image quality of optical lens does not change substantially, ensure that the request for utilization of camera lens under high temperature or low temperature environment.
With reference to figure 3, shown optical lens 9, CCD imager 10, light shield 4, underwater electrical connector 15, by connecting formation entirety with front shroud cylinder 5 and main body 14.O RunddichtringO is all laid at front shroud cylinder 5 and main body 14 junction, screening glass 2 and front shroud cylinder 5 junction and cover plate 12 and main body 14 junction, and embedding 6704 silica gel, ensure that the watertightness performance of camera lens entirety.Between each mechanical component, joint bolt is all furnished with standard spring washer retaining simultaneously, and note shellac is all put by joint bolt place, ensures the direct coupled fixing of part, improves vibration resistance and the impact property of camera lens entirety.The present invention can meet random vibration frequency within the scope of 6-2000Hz, and power spectrum density peak value is 0.06g
2the random vibration test requirement of/Hz; And the semisinusoidal impulse test requirement of impact acceleration peak value 70g, duration 6ms.
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 (4)
1. a high-speed camera camera lens, comprise along light from left to right direction incidence be respectively equipped with focal power be negative before organize A and focal power is rear group of positive B, it is characterized in that: before described, group A is formed for negative crescent moon lens A-1, described rear group of B is provided with the gummed group of being touched by biconvex lens B-1 and biconcave lens B-2, the glue pellet of being touched by negative crescent moon lens B-3 and positive crescent moon B-4, biconvex lens B-5, the gummed group of being touched by biconvex lens B-6 and negative crescent moon lens B-7 successively; Along light direction, the airspace between described front group of A and rear group of B is 1.07mm; Along light direction, in described rear group of B, the airspace between the gummed group of being touched by biconvex lens B-1 and biconcave lens B-2 and the glue pellet of being touched by negative crescent moon lens B-3 and positive crescent moon B-4 is 2.55mm; Airspace between the glue pellet of being touched by negative crescent moon lens B-3 and positive crescent moon B-4 and biconvex lens B-5 is 0.15mm; Airspace between biconvex lens B-5 and the gummed group of being touched by biconvex lens B-6 and negative crescent moon lens B-7 is 0.15mm; The optical system that above-mentioned lens set is formed reaches following optical index:
Service band: 0.4um-0.8um;
Focal length: f '=10mm;
Image planes size: 1/3 ";
Field angle: 2 ω=27 ° × 20 °;
Relative aperture D/f ': 1/1.19;
Optical texture length ∑ L≤34.00mm;
Resolution of lens: with super mega pixel 1/3 " ccd video camera or cmos camera adaptation.
2. high-speed camera camera lens according to claim 1, it is characterized in that: the body tube also comprising installing lens, the AC microscope base of gummed group that the front inner wall of described body tube is provided with to install negative crescent moon lens A-1, is touched by biconvex lens B-1 and biconcave lens B-2, the rear end of described body tube is connected with the GH microscope base installing the gummed group of being touched by biconvex lens B-6 and negative crescent moon lens B-7.
3. high-speed camera camera lens according to claim 2, is characterized in that: described AC microscope base and GH microscope base are connected with body tube with uniform cone end holding screw by screw thread, and are marked with shellac on tie point.
4. high-speed camera camera lens according to claim 3, is characterized in that: described body tube front inner wall is provided with the A sheet trim ring in order to fastening front group A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210306144.0A CN102819084B (en) | 2012-08-27 | 2012-08-27 | High-speed camera camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210306144.0A CN102819084B (en) | 2012-08-27 | 2012-08-27 | High-speed camera camera lens |
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| Publication Number | Publication Date |
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| CN102819084A CN102819084A (en) | 2012-12-12 |
| CN102819084B true CN102819084B (en) | 2016-01-20 |
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| CN201210306144.0A Active CN102819084B (en) | 2012-08-27 | 2012-08-27 | High-speed camera camera lens |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108241195B (en) * | 2016-12-27 | 2023-11-24 | 广州长步道光学科技有限公司 | Lens structure with double positioning assembly references for preventing lens inclination |
| CN113946027A (en) * | 2021-09-16 | 2022-01-18 | 茂莱（南京）仪器有限公司 | Combined lens base suitable for assembling concave lens |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2862067Y (en) * | 2005-09-08 | 2007-01-24 | 南阳市卧龙光学有限公司 | Imagery orthostigmat |
| CN101644823A (en) * | 2009-09-16 | 2010-02-10 | 福建福光数码科技有限公司 | Wide-angle low-light high-resolution lens |
| CN101762866A (en) * | 2008-12-25 | 2010-06-30 | 比亚迪股份有限公司 | Wide-angle lens and camera |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004037927A (en) * | 2002-07-04 | 2004-02-05 | Minolta Co Ltd | Imaging apparatus |
| JP2007108711A (en) * | 2005-09-13 | 2007-04-26 | Olympus Imaging Corp | Imaging optical system and electronic imaging device having it |
| JP2008191306A (en) * | 2007-02-02 | 2008-08-21 | Olympus Imaging Corp | Imaging optical system and electronic imaging apparatus having the same |
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- 2012-08-27 CN CN201210306144.0A patent/CN102819084B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2862067Y (en) * | 2005-09-08 | 2007-01-24 | 南阳市卧龙光学有限公司 | Imagery orthostigmat |
| CN101762866A (en) * | 2008-12-25 | 2010-06-30 | 比亚迪股份有限公司 | Wide-angle lens and camera |
| CN101644823A (en) * | 2009-09-16 | 2010-02-10 | 福建福光数码科技有限公司 | Wide-angle low-light high-resolution lens |
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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: 350015, Fuzhou, Fujian Province, Mawei District, No. 39 Applicant before: Fujian Forecam Optics Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: FUJIAN FORECAM DIGITAL TECHNOLOGY CO., LTD. TO: FUJIAN FORECAM CO., LTD. |
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