CN204166263U - A kind of semiconductor laser illumination module of many dispersion angles - Google Patents
A kind of semiconductor laser illumination module of many dispersion angles Download PDFInfo
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- CN204166263U CN204166263U CN201420532687.9U CN201420532687U CN204166263U CN 204166263 U CN204166263 U CN 204166263U CN 201420532687 U CN201420532687 U CN 201420532687U CN 204166263 U CN204166263 U CN 204166263U
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Abstract
The utility model provides a kind of semiconductor laser illumination module with multiple angle of divergence, comprises semiconductor laser, illumination module base, illumination module camera lens, illumination module cover plate, beam shaping lens and light spot homogenizing device; Described semiconductor laser is fixed on illumination module base; exiting surface front priming illumination module group lens; illumination module camera lens inside comprises beam shaping lens and light spot homogenizing device, and illumination module cover plate is fixed on the back side of illumination module base, and noise spectra of semiconductor lasers shields.Dispersion angle scope is from 5 °-60 °, often kind of dispersion angle all adopts a semiconductor laser to obtain through beam shaping, the laser module of multiple dispersion angle can need to control respectively to open or open simultaneously according to light filling in video camera zooming procedure, coordinate the use of market Zoom camera largely, thus take into account far and near distance and the large multiple light illumination mode of low-angle, the scope of application is wider, and monitoring picture is more clear.In addition, the utility model structure is simple, and reliability is strong, can meet the demand of market today.
Description
Technical field
The utility model relates to a kind of semiconductor laser illumination module of many dispersion angles, belongs to security device technical field.
Background technology
Along with expanding economy, public safety has become the key factor affecting world development, has promoted the fast development of security protection industry, also proposes higher performance requirement to security device, for covering larger monitoring area, wherein the requirement of the monitoring distance of video camera is increased greatly.Good for image quality under CCD or cmos camera by day natural light condition, but at night, especially in entirely black environment, be subject to the restriction of light luminance, image quality declines greatly.At present, the servicing lighting of collocation video camera is 850nm infrarede emitting diode (LED), because the light radiation angle of LED is larger, at night to the floor light of video camera apart from limited, by secondary optical design, larger light loss can be caused, especially to arrange in pairs or groups Zoom camera, need the dispersion angle controlling luminaire within 10 °, require the illumination distances realizing 300 meters, for the long distance illumination adopting the luminaire of LED cannot realize real meaning.
Chinese patent CN102830571A discloses " a kind of laser lamp for line-scan digital camera compensatory light ", the laser lamp be specifically made up of multiple semiconductor laser chip.Illumination path is formed by the post lens of semiconductor laser chip and corresponding light, laser chip and power supply constant current source to be arranged in shell on bearing, each laser chip top is added with and makes light beam change nyctitropic optical system, on laser chip, square column lens are embedded in housing, post lens tip is luminescence window, and shell has heat radiator.Multi-point luminous, avoids forming shade on illuminated object.Utilize multiple low power laser chip can reduce requirement to environment, temperature range applicatory is wide, and has the comparatively long life, and the fault of minority laser chip can not affect the work of entire compensation light source, increases the reliability of light source.But the semiconductor laser lamp light radiation angle in this patent is fixed, Zoom camera of cannot arranging in pairs or groups uses.
Chinese patent CN103472659A discloses " a kind of zoom-type laser infrared lamp ", comprise housing, tail-hood and protecgulum, laser infrared emitter is provided with in described housing, optical zoom apparatus, control circuit, driving circuit, motor, lens holder, described optical zoom apparatus is made up of two groups of lens, and scioptics fixture is connected with housing, first group of lens is two plano-convex lenss, the convex surface of described two plano-convex lenss is arranged face-to-face, second group of lens is a biconvex lens, the center of described two groups of lens is all positioned on light source center line, realize the demand adapting to different distance monitoring infrared illumination in the mode of zoom, but this device needs multiple lens and motor to realize zoom, complex structure, light loss is larger, simultaneously, in zooming procedure, easily occur that lens depart from the phenomenon of optical axis.
800nm-1000nm semiconductor laser is based on GaAs based material, and active area adopts body strain multivariate solid solution quantum well, and have the high differential gain, quantum well can be with potential barrier high, at high temperature can reduce the spilling of charge carrier; End face adopts special Coating Materials, has the disastrous damage threshold of high end face, has good hot operation characteristic and excellent reliability.800nm-1000nm semiconductor laser photoelectric transformation efficiency is greater than 60%, and device power consumption is low, and internal heat accumulation is few, and the life-span is long.Adopt accurate waveguide layer thickness to control, the reasonably optimizing of ridge waveguide and secondary optics shaping methods can realize the beam exit of the different angle of divergence.
Utility model content
Not enough for prior art, the utility model provides a kind of semiconductor laser illumination module of many dispersion angles, the laser module of multiple dispersion angle can need to control respectively to open or open, to meet the floor light demand of video camera simultaneously according to light filling in video camera zooming procedure.The utility model structure is simple, flexible, adopts exclusive semiconductor laser light spot homogenizing technology and beam divergence angle control technology, coordinates video camera to use in night, ensures the sharpness of image.
Technical solutions of the utility model are as follows:
There is a semiconductor laser illumination module for multiple angle of divergence, comprise semiconductor laser, illumination module base, illumination module camera lens, illumination module cover plate, beam shaping lens and light spot homogenizing device; Described semiconductor laser is fixed on illumination module base; exiting surface front priming illumination module group lens; illumination module camera lens inside comprises beam shaping lens and light spot homogenizing device, and illumination module cover plate is fixed on the back side of illumination module base, and noise spectra of semiconductor lasers shields.
Preferred according to the utility model, described semiconductor laser adopts 800nm-1000nm near infrared semiconductor laser, as the floor light light source of Zoom camera.
Preferred according to the utility model, described light spot homogenizing device adopts optical integral rod or random microlens array.
Preferred according to the utility model, the laser beam divergence degree of described semiconductor laser module outgoing is 5 °-60 °.
Preferred according to the utility model, described illumination module, comprises N number of module group unit, described N >=2.
In described illumination module, the laser that the semiconductor laser in each module group unit sends, carries out homogenize by light spot homogenizing device, and the light beam after homogenize is again by beam shaping lens outgoing; The distance of adjustment beam shaping lens and light spot homogenizing device, or in light spot homogenizing device, adopt the microlens array of different shooting angle, realize different angle of divergence beam exit, and then realize different irradiation distances.In addition, by controlling multiple semiconductor laser simultaneously or open alone, the requirement of large low-angle and far and near distance can be taken into account better, thus the use of more complete cooperation high definition Zoom camera.
The beneficial effects of the utility model:
The semiconductor laser illumination module with multiple angle of divergence provided by the utility model, adopt semiconductor laser as light source, make up the deficiency that LED cannot realize long distance illumination, illumination distances increases greatly, adopt multiple dispersion angle simultaneously, coordinate the use of market Zoom camera largely, thus take into account far and near distance and the large multiple light illumination mode of low-angle, the scope of application is wider, and monitoring picture is more clear.In addition, the utility model structure is simple, and reliability is strong, can meet the demand of market today.
Accompanying drawing explanation
Fig. 1 is the semiconductor laser illuminating module structure schematic diagram of a kind of many dispersion angles described in embodiment 1.
In figure, 1 is semiconductor laser, and 2 is illumination module base, and 3 is illumination module camera lens, and 4 is illumination module cover plate, and 5 is beam shaping lens, and 6 is light spot homogenizing device.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail, but is not limited thereto.
Embodiment 1,
As shown in Figure 1, a kind of semiconductor laser illumination module with multiple angle of divergence, comprises semiconductor laser 1, illumination module base 2, illumination module camera lens 3, illumination module cover plate 4, beam shaping lens 5 and light spot homogenizing device 6; Described semiconductor laser 1 is fixed on illumination module base 2, exiting surface front priming illumination module group lens 3, and illumination module camera lens 3 inside comprises beam shaping lens 5 and light spot homogenizing device 6, and illumination module cover plate 4 is fixed on the back side of illumination module base 2.Described semiconductor laser 1 adopts 808nm near infrared semiconductor laser; Described light spot homogenizing device 6 adopts optical integral rod.
The described semiconductor laser illumination module with multiple angle of divergence, comprises 3 module group units.The laser that semiconductor laser 1 in each module group unit sends, carries out homogenize by light spot homogenizing device 6, and the light beam after homogenize is again by beam shaping lens 5 outgoing; The distance of adjustment beam shaping lens 5 and light spot homogenizing device 6, realizes different angle of divergence beam exit, and then realizes different irradiation distances.In addition, open by controlling 3 semiconductor lasers 1, the laser beam divergence degree that can realize the outgoing of semiconductor laser module is 60 ° simultaneously.
Embodiment 2,
A semiconductor laser illumination module for a kind of many dispersion angles as described in Example 1, its difference is,
Described semiconductor laser 1 adopts 980nm near infrared semiconductor laser; Described light spot homogenizing device 6 adopts random microlens array.
The described semiconductor laser illumination module with multiple angle of divergence, comprises 5 module group units.The laser that semiconductor laser 1 in each module group unit sends, carries out homogenize by light spot homogenizing device 6, and the light beam after homogenize is again by beam shaping lens 5 outgoing; Adopt the microlens array of different shooting angle in described light spot homogenizing device 6, realize different angle of divergence beam exit, and then realize different irradiation distances.In addition, open by controlling 5 semiconductor lasers 1, the laser beam divergence degree that can realize the outgoing of semiconductor laser module is 45 ° simultaneously.
Claims (7)
1. a semiconductor laser illumination module for dispersion angle more than, comprises semiconductor laser, illumination module base, illumination module camera lens, illumination module cover plate, beam shaping lens and light spot homogenizing device; Described semiconductor laser is fixed on illumination module base, exiting surface front priming illumination module group lens, and illumination module camera lens inside comprises beam shaping lens and light spot homogenizing device, and illumination module cover plate is fixed on the back side of illumination module base.
2. the semiconductor laser illumination module of a kind of many dispersion angles according to claim 1, is characterized in that, described semiconductor laser adopts 800nm-1000nm near infrared semiconductor laser, as the floor light light source of Zoom camera.
3. the semiconductor laser illumination module of a kind of many dispersion angles according to claim 1, is characterized in that, described light spot homogenizing device adopts optical integral rod or random microlens array.
4. the semiconductor laser illumination module of a kind of many dispersion angles according to claim 1, is characterized in that, the laser beam divergence degree of described semiconductor laser module outgoing is 5 °-60 °.
5. the semiconductor laser illumination module of a kind of many dispersion angles according to claim 1, is characterized in that described illumination module comprises N number of module group unit, described N >=2.
6. the semiconductor laser illumination module of a kind of many dispersion angles according to claim 1, is characterized in that, described different dispersion angle can be realized by the distance of adjustment beam shaping lens and light spot homogenizing device.
7. the semiconductor laser illumination module of a kind of many dispersion angles according to claim 1, is characterized in that, described different dispersion angle can adopt the microlens array of different shooting angle to realize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420532687.9U CN204166263U (en) | 2014-09-09 | 2014-09-09 | A kind of semiconductor laser illumination module of many dispersion angles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420532687.9U CN204166263U (en) | 2014-09-09 | 2014-09-09 | A kind of semiconductor laser illumination module of many dispersion angles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204166263U true CN204166263U (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420532687.9U Expired - Fee Related CN204166263U (en) | 2014-09-09 | 2014-09-09 | A kind of semiconductor laser illumination module of many dispersion angles |
Country Status (1)
| Country | Link |
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| CN (1) | CN204166263U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105404079A (en) * | 2014-09-09 | 2016-03-16 | 山东华光光电子有限公司 | Semiconductor laser lighting module with multiple divergence angles |
| 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 |
-
2014
- 2014-09-09 CN CN201420532687.9U patent/CN204166263U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105404079A (en) * | 2014-09-09 | 2016-03-16 | 山东华光光电子有限公司 | Semiconductor laser lighting module with multiple divergence angles |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151211 Address after: Tianchen Avenue high tech Zone of Ji'nan City, Shandong Province, No. 1835 250101 Patentee after: Shandong Huaguang Photoelectronic Co., Ltd. Address before: 261061 Weifang high tech Zone, Jin Road, No. 9, No. Patentee before: Shandong Inspur Huaguang Optoelectronics 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: 20150218 Termination date: 20190909 |