CN203376545U - Laser lighting device adopting rotary light-homogenizing sheet to homogenize - Google Patents
Laser lighting device adopting rotary light-homogenizing sheet to homogenize Download PDFInfo
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- CN203376545U CN203376545U CN201320312807.XU CN201320312807U CN203376545U CN 203376545 U CN203376545 U CN 203376545U CN 201320312807 U CN201320312807 U CN 201320312807U CN 203376545 U CN203376545 U CN 203376545U
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- homogenizing
- mating plate
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Abstract
The utility model provides a laser lighting device adopting a rotary light-homogenizing sheet to homogenize, relates to the laser lighting device and solves problems that an existing homogenizing device can only eliminate partial light and shade large strips in images, serious laser speckles are generated simultaneously, and thus lighting effect is seriously affected. The laser lighting device comprises a semiconductor laser, the homogenizing device and a lens group. The semiconductor laser sends laser beams which are homogenized by the homogenizing device and then incident to the lens group. The laser beams are emergent via the lens group to a light projection surface so that homogenizing light spots are formed. The homogenizing device at least is a rotary device and a light-homogenizing sheet which are used for performing homogenizing treatment on the laser speckles. A technology of homogenizing glass in a rotary way is adopted by the laser lighting device so that the laser speckles caused by high coherence of laser are completely eliminated, application effect of infrared laser supplement in the night shooting field is greatly enhanced and thus images are clearer.
Description
Technical field
The utility model relates to a kind of laser illuminator system, is specifically related to a kind of laser illuminator system that adopts the even mating plate homogenize of rotation.
Background technology
Along with the development of camera technique at night, infrared laser illumination (light filling) technology has been widely used in the security protection industry.Most high power semi-conductor half laser illuminators that adopt carry out the infrared photography light filling in the market.
Because there is the inhomogeneous defect of light energy distribution in semiconductor laser, generally adopt in the market light beam cutter (as frosted glass) or optical fiber to carry out homogenize to laser beam, because laser has very high coherence, above-mentioned all homogenizers are only understood the large striped of part light and shade in removal of images, also can produce serious laser speckle, have a strong impact on illuminating effect simultaneously.Therefore, prior art haves much room for improvement and improves.
The utility model content
The utility model, for solving the part light and shade large striped of existing homogenizer in can only removal of images, also can produce serious laser speckle, has a strong impact on the problem of illuminating effect, and a kind of laser illuminator system that adopts the even mating plate homogenize of rotation is provided simultaneously.
A kind of laser illuminator system that adopts the even mating plate homogenize of rotation, comprise semiconductor laser, homogenizer and lens combination, described semiconductor laser sends laser beam and be incident to lens combination after the homogenizer homogenize, the angle of divergence of the laser beam of described lens combination after to homogenize is adjusted, and the light beam after described adjustment forms uniform hot spot through lens combination outgoing to light projection surface.
Described homogenizer comprises wheelwork and even mating plate, and described even mating plate is arranged on the turning axle of wheelwork, and wheelwork is for periodically rotating even mating plate.
Described wheelwork is motor.
Described lens combination comprises beam expanding lens and focus lamp, and light beam outgoing to light projection surface after expanding, focusing on forms uniform light spots.
The beneficial effects of the utility model: the laser illuminator system of the even mating plate homogenize of the rotation that the utility model provides, due to the technology that has adopted rotation homogenize glass, thoroughly eliminated the laser speckle that the high coherence due to laser causes, greatly promoted make a video recording at the night effect in field of infrared laser light filling, made the image more clear.
The accompanying drawing explanation
Fig. 1 is a kind of structural drawing that adopts the laser illuminator system of the even mating plate homogenize of rotation described in the utility model;
In Fig. 2 a, b, c, d and e be in a kind of laser illuminator system that adopts the even mating plate homogenize of rotation described in the utility model at camera sensor in integral time during out of phase the laser facula schematic diagram of (0, pi/2, π, 3 pi/2s, 2 π);
The laser facula Overlay schematic diagram that Fig. 3 is the out of phase shown in Fig. 2 (0, pi/2, π, 3 pi/2s, 2 π);
Fig. 4 is a kind of schematic diagram that adopts the laser illuminator system of the even mating plate homogenize of rotation described in the utility model;
The schematic diagram that Fig. 5 is embodiment two of the present utility model;
In Fig. 6, a and b are respectively the contrast effect figure that adopts existing apparatus and adopt the homogenize hot spot of laser illuminator system of the present utility model.
Embodiment
Embodiment one, in conjunction with Fig. 1 to Fig. 4, present embodiment is described, a kind of laser illuminator system that adopts the even mating plate homogenize of rotation, comprise semiconductor laser 1, homogenizer 2 and lens combination 3; Described homogenizer 2 is arranged between semiconductor laser 1 and lens combination 3 or before being arranged on whole lighting device; The homogenize device that described homogenizer 2 is the even mating plate of rotation, be that the laser that described semiconductor laser 1 sends carries out the homogenize processing through the even mating plate of over-rotation, described even mating plate 2-2 can drive rotation by wheelwork 2-1, and this wheelwork 2-1 can drive and rotate or the interlock of motor-driven eccentric wheel by motor.Drive even mating plate 2-2 rotation by wheelwork 2-1, thereby make the laser facula generating period rotation on projection surface, to irradiating, with laser, carry out further homogenize processing, so that the every bit on the light projection surface is all shone uniformly within a certain period of time.
The described wheelwork 2-1 of present embodiment drives even mating plate 2-2 and rotates, when the rotating speed of described even mating plate 2-2 reaches 40 π per second, within the integral time of camera sensor, (50ms) just can complete the mutual stack of the laser beam of out of phase, be equivalent to several independently sample averagings of speckle pattern, every bit on the light projection surface all can be shone uniformly like this, thereby has thoroughly eliminated laser speckle.
When shown in Fig. 2, described even mating plate rotating speed reaches 40 π per second, at camera sensor laser facula pattern schematic diagram during out of phase in integral time, shown in Fig. 3, be the laser facula Overlay schematic diagram of out of phase, visible the utility model can thoroughly have been eliminated laser speckle.
Embodiment two, in conjunction with Fig. 5 and Fig. 6, present embodiment is described, present embodiment is the described a kind of Application Example that adopts the laser illuminator system of the even mating plate homogenize of rotation of embodiment one: semiconductor laser 1 is arranged on heat dissipation base 4, homogenizer 2 is arranged on lens barrel shell 5, be provided with even mating plate 2-2 in the rotating shaft of wheelwork 2-1 in described homogenizer, concrete can be that rotary electric machine drives even mating plate, is provided with lens combination 3 in the tube chamber of lens barrel shell 5.Experimental result shows, the laser illuminator system that the utility model adopts the even mating plate homogenize of rotation is the eliminate laser speckle phenomenon thoroughly.
The elimination result of the utility model laser speckle as shown in Figure 6, the design sketch that figure a is the speckle of even mating plate when not rotating, this image is the result after the homogenize of available technology adopting frosted glass or optical fiber homogenize aftertreatment, it is clear and the laser speckle phenomenon is serious that it is not fogging, figure b is depicted as the design sketch that adopts the utility model to rotate the speckle after even mating plate homogenize, clear picture and thoroughly eliminated the laser speckle phenomenon.
The technical characterictic that the utility model is not described can be realized by prior art, is understandable that, for those of ordinary skills; the variation of making in the utility model essential scope; remodeling, add or be equal to replacement, also belongs to protection domain of the present utility model.
Claims (4)
1. a laser illuminator system that adopts the even mating plate homogenize of rotation, comprise semiconductor laser (1), homogenizer (2) and lens combination (3); It is characterized in that, described semiconductor laser (1) sends laser beam and be incident to lens combination (3) after homogenizer (2) homogenize, described lens combination (3) is adjusted the angle of divergence of the laser beam after homogenize, and the light beam after described adjustment forms uniform hot spot through lens combination (3) outgoing to light projection surface.
According to claim 1 a kind of adopt the rotation even mating plate homogenize laser illuminator system, it is characterized in that, described homogenizer (2) comprises wheelwork and even mating plate (2-2), described even mating plate (2-2) is arranged on the turning axle of wheelwork (2-1), and wheelwork (2-1) is for periodically rotating even mating plate (2-2).
3. a kind of laser illuminator system that adopts the even mating plate homogenize of rotation according to claim 2, is characterized in that, described wheelwork (2-1) is motor.
According to claim 1 a kind of adopt the rotation even mating plate homogenize laser illuminator system, it is characterized in that, described lens combination (3) comprises beam expanding lens (3-1) and focus lamp (3-2), and light beam outgoing to light projection surface after expanding, focusing on forms uniform light spots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320312807.XU CN203376545U (en) | 2013-06-03 | 2013-06-03 | Laser lighting device adopting rotary light-homogenizing sheet to homogenize |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320312807.XU CN203376545U (en) | 2013-06-03 | 2013-06-03 | Laser lighting device adopting rotary light-homogenizing sheet to homogenize |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203376545U true CN203376545U (en) | 2014-01-01 |
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| CN201320312807.XU Expired - Fee Related CN203376545U (en) | 2013-06-03 | 2013-06-03 | Laser lighting device adopting rotary light-homogenizing sheet to homogenize |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103279000A (en) * | 2013-06-03 | 2013-09-04 | 吉林省晟世源科技有限公司 | Laser illuminating device which homogenizes with spinning light homogenizing sheet |
| CN104076522A (en) * | 2014-06-27 | 2014-10-01 | 浙江宇视科技有限公司 | Laser light supplementation assembly and video monitoring device |
| CN105589206A (en) * | 2016-03-25 | 2016-05-18 | 刘磊 | Laser supplementing device and illumination control method thereof |
| CN106526882A (en) * | 2015-12-09 | 2017-03-22 | 西安域视光电科技有限公司 | Method and device for eliminating laser speckle |
| CN107664849A (en) * | 2016-07-27 | 2018-02-06 | 长春理工大学 | A kind of laser illuminator system of illumination spot high uniformity |
| CN108067756A (en) * | 2016-11-07 | 2018-05-25 | 三星显示有限公司 | The control method of Laser crystallization equipment and crystallization laser beam |
| CN108181724A (en) * | 2018-02-11 | 2018-06-19 | 吉林省威科拓科技有限公司 | For the high zoom ratio laser illumination system of security protection night vision |
| CN109254415A (en) * | 2018-10-31 | 2019-01-22 | 四川长虹电器股份有限公司 | The laser of engraving external diffusion disappears speckle device in a kind of multidimensional |
-
2013
- 2013-06-03 CN CN201320312807.XU patent/CN203376545U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103279000A (en) * | 2013-06-03 | 2013-09-04 | 吉林省晟世源科技有限公司 | Laser illuminating device which homogenizes with spinning light homogenizing sheet |
| CN104076522A (en) * | 2014-06-27 | 2014-10-01 | 浙江宇视科技有限公司 | Laser light supplementation assembly and video monitoring device |
| CN106526882A (en) * | 2015-12-09 | 2017-03-22 | 西安域视光电科技有限公司 | Method and device for eliminating laser speckle |
| CN106526882B (en) * | 2015-12-09 | 2018-06-26 | 西安域视光电科技有限公司 | A kind of method and device for eliminating laser speckle |
| CN105589206A (en) * | 2016-03-25 | 2016-05-18 | 刘磊 | Laser supplementing device and illumination control method thereof |
| CN107664849A (en) * | 2016-07-27 | 2018-02-06 | 长春理工大学 | A kind of laser illuminator system of illumination spot high uniformity |
| CN108067756A (en) * | 2016-11-07 | 2018-05-25 | 三星显示有限公司 | The control method of Laser crystallization equipment and crystallization laser beam |
| CN108067756B (en) * | 2016-11-07 | 2021-11-05 | 三星显示有限公司 | Laser crystallization apparatus and method for controlling crystallized laser beam |
| CN108181724A (en) * | 2018-02-11 | 2018-06-19 | 吉林省威科拓科技有限公司 | For the high zoom ratio laser illumination system of security protection night vision |
| CN108181724B (en) * | 2018-02-11 | 2024-04-05 | 吉林省威科拓科技有限公司 | High-zoom-ratio laser lighting system for security night vision |
| CN109254415A (en) * | 2018-10-31 | 2019-01-22 | 四川长虹电器股份有限公司 | The laser of engraving external diffusion disappears speckle device in a kind of multidimensional |
| CN109254415B (en) * | 2018-10-31 | 2020-07-28 | 四川长虹电器股份有限公司 | Laser speckle eliminating device for multi-dimensional inner engraving and outer diffusion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20140603 |