CN201434341Y - Wide-angle laser zoom lighting device - Google Patents
Wide-angle laser zoom lighting device Download PDFInfo
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- CN201434341Y CN201434341Y CN2009200275850U CN200920027585U CN201434341Y CN 201434341 Y CN201434341 Y CN 201434341Y CN 2009200275850 U CN2009200275850 U CN 2009200275850U CN 200920027585 U CN200920027585 U CN 200920027585U CN 201434341 Y CN201434341 Y CN 201434341Y
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- thin lens
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- sliding sleeve
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Abstract
The utility model provides a wide-angle laser zoom lighting device. The technical scheme is that the utility model comprises a semi-conductor laser, the back of the semi-conductor laser is fixedly provided with a heat dispersion device, and the front of the semi-conductor laser is successively provided with an optical reshaping smoothing device and a thin lens group; the thin lens group drives thedevice to move forward and backward through the mechanical driving mechanism and the motor; the distance L between the thin lens group and the optical reshaping smoothing device satisfies that L is greater than or equal to 0 and smaller than or equal to f, wherein, f refers to the focus distance of the thin lens group; the thin lens group has Masamitsu focal power, and the range of F is that F isgreater than or equal to 0.8 and smaller than or equal to 1.2. The lighting angle of the utility model is under power-driven control, the maximum lighting angle reaches more than 45 DEG, and the minimum lighting angle is under 2 DEG. The utility model can adjust the lighting angle continuously based on different viewing angle of the camera.
Description
Technical field
The utility model relates to a kind of infrared laser lighting engineering, especially relates to a kind of wide-angle laser zooming illuminating apparatus.
Background technology
Semiconductor laser lighting have illumination distances far away, disguised strong, the life-span is long and characteristics such as energy-conserving and environment-protective, is widely used in the infrared illumination field.For remote monitor on a large scale, the zoom light ratio focuses illumination tangible advantage, and its light angle size is adjustable continuously, in the time of can satisfying the far and near different objects of cameras view to the demand of laser illumination and different light angles.
The monitoring camera lens maximum field of view angle of but using in night vision monitoring field is greater than 40 °, at present in the laser illuminator of variable illumination angle, accessible highest luminance angle is big inadequately, cause camera lens when wide-angle side, the illumination hot spot can't cover whole visual field, has very big lighting blind zone.The name of patent application of the applicant's invention is " Zooming apparatus of long-distance large-range semiconductor laser lighting device ", the patent No. is the utility model patent of CN200620084576.1, adopt electronic control mode, can realize the adjustable continuously of laser lighting angle, and to have provided the maximum angle excursion be 0 °～30 ° embodiment, hot spot can not be full of the shortcoming of whole camera field of view when but near objects was seen in same existence, can't reach optimal night vision illumination effect.
Summary of the invention
The utility model is at the existing in prior technology shortcoming, and provide a kind of light angle electronic control, the highest luminance angle reaches more than 45 °, and minimum light angle can be carried out the laser zooming illuminating apparatus that light angle is regulated continuously according to the different angles of visual field of video camera below 2 °.
The utility model is realized by following technical measures: a kind of wide-angle laser zooming illuminating apparatus, it comprises semiconductor laser, be set with heat abstractor in the semiconductor laser back, the front of semiconductor laser is disposed with optical shaping homogenizer, thin lens group; It moves forward and backward the thin lens group by mechanical transmission mechanism, driven by motor, interval L between thin lens group and optical shaping homogenizer satisfies: 0≤L≤f, wherein f is the focal length of thin lens group, and described thin lens group has positive light coke, and the scope of F number is: 0.8≤F≤1.2.
Concrete characteristics of the present utility model also have, and above-mentioned optical shaping homogenizer comprises the post lens that are fixed on before the semiconductor laser, and the optical microlens array is installed behind the post lens.Wherein, the optical microlens array can be quartz or plastic material, the light transmittance height, and to carry out homogenize shaping and expansion bundle through the semiconductor laser after the shaping of post lens, can be from buying on the market.Above-mentioned thin lens group is fixed on the mobile mirror holder by trim ring, mobile mirror holder cooperates with sliding sleeve by sliding bar, and sliding sleeve is sleeved on the sleeve, and described sliding bar cooperates with cam path on the sliding sleeve, described sliding sleeve is connected with motor by transmission mechanism, and sliding sleeve is by sliding sleeve back-up ring axial limiting.
The beneficial effect of this programme can learn that light angle is adjustable continuously according to the narration to such scheme, and when satisfying far and near illumination on a large scale, closely light angle is big, can mate with the camera lens angle of visual field, avoids lighting blind zone.
Description of drawings
Fig. 1 is the principle schematic of the utility model specific embodiment.
Fig. 2 is the structural representation of the utility model specific embodiment.
Fig. 3 is the enlarged drawing of B portion among Fig. 2.
Among the figure, 1, semiconductor laser, 2, heat abstractor, 3, optical shaping homogenizer, 4, the thin lens group, 5, mechanical transmission mechanism, 6, motor, 7, simple lens, 8, trim ring, 9, sliding bar, 10, mobile mirror holder, 11, sliding sleeve, 12, sliding sleeve back-up ring, 13, sleeve, 14, cam path, 15, fixed mount, 16, the post lens, 17, the optical microlens array.
The specific embodiment
For clearly demonstrating the technical characterstic of this programme,, this programme is set forth below by a specific embodiment.
A kind of wide-angle laser zooming illuminating apparatus, it comprises semiconductor laser 1, is set with heat abstractor 2 in the semiconductor laser back, the front of semiconductor laser is disposed with optical shaping homogenizer 3, thin lens group 4; Thin lens group 4 drives it and moves forward and backward by mechanical transmission mechanism 5, drive motors 6, and described thin lens group 4 has positive light coke, and the scope of F number is: 0.8≤F≤1.2.Concrete characteristics of the present utility model also have, above-mentioned optical shaping homogenizer 3 comprises the post lens 16 that are fixed on before the semiconductor laser 1, optical microlens array 17 is installed behind the post lens 16, the fast axle angle of divergence of post lens 16 compression laser, make laser fast and slow axis angle of divergence ratio between 0.8～1.0,17 pairs of multi-mode lasers of optical microlens array carry out homogenize and expand bundle, make it to satisfy even lighting requirement, and increase the angle of divergence of shoot laser.Thin lens group 4 is fixed on the mobile mirror holder 10 by trim ring 8, mobile mirror holder 10 cooperates with sliding sleeve 11 by sliding bar 9, sliding sleeve 11 is sleeved on the sleeve 13, described sliding bar 9 cooperates with cam path 14 on the sliding sleeve 11, sliding sleeve 11 is connected with motor 6 by transmission mechanism, and sliding sleeve 11 is by sliding sleeve back-up ring 12 axial limitings.The light beam of 3 pairs of semiconductor laser quick shaft directions of optical shaping homogenizer compresses shaping, and the multimode hot spot is carried out homogenize, makes it to satisfy evenly illumination, simultaneously, and the expansion of laser light angle of divergence.Thin lens group 4 specifically can adopt simple lens, cemented doublet, air-spaced doublet or other more complicated thin lens group of object lens of large relative aperture, and the scope of F number is: 0.8≤F≤1.2.Can guarantee that like this highest luminance angle reaches more than 45 °, minimum light angle can be carried out light angle according to the different angles of visual field of video camera and regulate continuously below 2 °.
The utility model can pass through existing techniques in realizing without the technical characterictic of describing, and does not repeat them here.
Claims (3)
1, a kind of wide-angle laser zooming illuminating apparatus, it comprises semiconductor laser (1), it is characterized in that, be set with heat abstractor (2) in the semiconductor laser back, the front of semiconductor laser is disposed with optical shaping homogenizer (3), thin lens group (4); Thin lens group (4) drives it and moves forward and backward by mechanical transmission mechanism (5), motor (6), interval L between thin lens group (4) and optical shaping homogenizer (3) satisfies: 0≤L≤f, wherein f is the focal length of thin lens group, described thin lens group (4) has positive light coke, and the scope of F number is: 0.8≤F≤1.2.
2, wide-angle laser zooming illuminating apparatus according to claim 1, it is characterized in that, described optical shaping homogenizer (3) comprises and is fixed on the preceding post lens (16) of semiconductor laser (1), and optical microlens array (17) is installed behind the post lens (16).
3, wide-angle laser zooming illuminating apparatus according to claim 1, it is characterized in that, described thin lens group (4) is fixed on the mobile mirror holder (10) by trim ring (8), mobile mirror holder (10) cooperates with sliding sleeve (11) by sliding bar (9), sliding sleeve (11) is sleeved on the sleeve (13), described sliding bar (9) cooperates with cam path (14) on the sliding sleeve (11), and described sliding sleeve (11) is connected with motor (6) by transmission mechanism, and sliding sleeve (11) is by sliding sleeve back-up ring (12) axial limiting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200275850U CN201434341Y (en) | 2009-06-16 | 2009-06-16 | Wide-angle laser zoom lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200275850U CN201434341Y (en) | 2009-06-16 | 2009-06-16 | Wide-angle laser zoom lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201434341Y true CN201434341Y (en) | 2010-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200275850U Expired - Fee Related CN201434341Y (en) | 2009-06-16 | 2009-06-16 | Wide-angle laser zoom lighting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201434341Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914934A (en) * | 2012-09-27 | 2013-02-06 | 西安瑞博华信息技术有限公司 | Laser lighting and imaging device |
| CN103472659A (en) * | 2013-09-22 | 2013-12-25 | 四川九洲视讯科技有限责任公司 | Zoom-type laser infrared lamp |
| CN105301749A (en) * | 2014-08-01 | 2016-02-03 | 山东华光光电子有限公司 | Laser zoom lighting module with optic axis fine adjustment and applications thereof |
| CN108267428A (en) * | 2016-12-30 | 2018-07-10 | 北京大学深圳研究生院 | Portable reinforced surface plasma resonance biosensor |
-
2009
- 2009-06-16 CN CN2009200275850U patent/CN201434341Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914934A (en) * | 2012-09-27 | 2013-02-06 | 西安瑞博华信息技术有限公司 | Laser lighting and imaging device |
| CN103472659A (en) * | 2013-09-22 | 2013-12-25 | 四川九洲视讯科技有限责任公司 | Zoom-type laser infrared lamp |
| CN103472659B (en) * | 2013-09-22 | 2016-06-15 | 四川九洲视讯科技有限责任公司 | A kind of zoom-type laser infrared lamp |
| CN105301749A (en) * | 2014-08-01 | 2016-02-03 | 山东华光光电子有限公司 | Laser zoom lighting module with optic axis fine adjustment and applications thereof |
| CN108267428A (en) * | 2016-12-30 | 2018-07-10 | 北京大学深圳研究生院 | Portable reinforced surface plasma resonance biosensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100331 Termination date: 20140616 |
|
| EXPY | Termination of patent right or utility model |