CN202306090U - Laser illuminating device possessing high light utilization rate and wide illuminating angle adjusting scope - Google Patents
Laser illuminating device possessing high light utilization rate and wide illuminating angle adjusting scope Download PDFInfo
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- CN202306090U CN202306090U CN2011204387354U CN201120438735U CN202306090U CN 202306090 U CN202306090 U CN 202306090U CN 2011204387354 U CN2011204387354 U CN 2011204387354U CN 201120438735 U CN201120438735 U CN 201120438735U CN 202306090 U CN202306090 U CN 202306090U
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Abstract
The utility model discloses a laser illuminating device possessing a high light utilization rate and a wide illuminating angle adjusting scope. The laser lighting device includes a laser, a viscolizer, a first short focal length focusing lens, and a second short focal length focusing lens. The first short focal length focusing lens is movable arranged between the laser and the viscolizer. The second short focal length focusing lens is arranged on the other side of the viscolizer relative to the first short focal length focusing lens. When the first short focal length focusing lens gets close to the laser, a laser beam is focused on the surface of the viscolizer, so the small-angle long-distance irradiation is satisfied, the light output loss is reduced, the laser utilization rate is improved, and the effective service lifetime of the laser is prolonged. When the first short focal length focusing lens gets close to the viscolizer, the laser beam is diffused on the surface of the viscolizer after being focused, so the big-angle close-distance irradiation is satisfied, the electric torch effect in the wide angle shooting is eliminated, and the illumination effect is improved. An original angle adjustment optical system surely considers the light extraction efficiency in the long-distance shooting and the irradiation angle in the close-distance shooting at the same time.
Description
Technical field
The utility model relates to the field of illuminating device of semiconductor laser, and in particular, what improvement related to is the laser illuminator system that a kind of light utilization efficiency height and light angle can be regulated on a large scale.
Background technology
Along with the development of camera technique at night, the infrared laser light filling is that the application of infrared laser illumination is also more and more general.Yet, because the dispersion angle of existing semiconductor laser is fixed, cause the distance of its irradiation limited, closely laser energy is excessive, the long distance laser energy shortage.
As shown in Figure 1, the laser that laser instrument 110 sends is played the homogenize of on homogenizer 120, carrying out hot spot and is handled, and the angle of divergence of the adjusting change laser of process angular adjustment optical system, with the shooting of adaptive video camera; The adjustment of adopting the formula of falling Galileo telescope zoom system, pancreatic system 130 to carry out on the dispersion angle of existing angular adjustment optical system more; The said formula of falling Galileo telescope zoom system, pancreatic system 130 is made up of a slice negative lens 131 and a slice positive lens 132; Wherein, Negative lens 131 is used for that the laser after the homogenize is expanded bundle to be handled, and positive lens 132 is used for expanding processings that collimate of laser behind the bundle, and reaches the adjustable purpose of laser beam divergence degree through mobile said negative lens 131.
But the wide-angle of existing infrared laser lighting device can only be accomplished 45 degree, and the wide-angle of video camera is generally about 60 degree, so " electric torch effect " when wide-angle imaging, can occur, promptly the range of exposures of laser lamp is much littler than the image pickup scope of video camera; In addition, the formula of falling the Galileo telescope zoom system, pancreatic system 130 that existing infrared laser lighting device is adopted, its laser utilization factor is not high yet; The laser of loss all changes into heat; Not only cause the irradiation distance of laser lamp shorter, be difficult to bring into play the advantage that laser lighting is applied to the medium and long distance illumination, can't satisfy the minimum light as requested of video camera requirement; And caused cooling system to be difficult to design, be difficult to guarantee the light extraction efficiency and the useful life of semiconductor laser.
Therefore, prior art still haves much room for improvement and develops.
The utility model content
The purpose of the utility model is, the laser illuminator system that provides a kind of light utilization efficiency height and light angle to regulate on a large scale can be taken into account the light extraction efficiency in remote when shooting and the irradiating angle when closely making a video recording simultaneously.
The technical scheme of the utility model is following: the laser illuminator system that a kind of light utilization efficiency height and light angle can be regulated on a large scale comprises laser instrument, homogenizer and angular adjustment optical system; Wherein: said angular adjustment optical system comprises the first short burnt condenser lens and the second short burnt condenser lens; The said first short burnt condenser lens is arranged between laser instrument and the homogenizer and can moves around; Relative this first short burnt condenser lens of the said second short burnt condenser lens is arranged on the opposite side of homogenizer.
The laser illuminator system that described light utilization efficiency height and light angle can be regulated on a large scale, wherein: the spacing between the said homogenizer and the second short burnt condenser lens equals the focal length of the second short burnt condenser lens.
The laser illuminator system that described light utilization efficiency height and light angle can be regulated on a large scale, wherein: the spacing between said laser instrument and the homogenizer is greater than the focal length of the twice first short burnt condenser lens.
The laser illuminator system that described light utilization efficiency height and light angle can be regulated on a large scale, wherein: said laser instrument is set to infrared laser; Said homogenizer is set to single face acute-matte or two-sided acute-matte.
The laser illuminator system that described light utilization efficiency height and light angle can be regulated on a large scale, wherein: the said first short burnt condenser lens is set to plano-convex lens, biconvex lens, aspheric mirror or GRIN Lens.
The laser illuminator system that described light utilization efficiency height and light angle can be regulated on a large scale, wherein: the said second short burnt condenser lens is set to plano-convex lens, biconvex lens, aspheric mirror or GRIN Lens.
The laser illuminator system that a kind of light utilization efficiency height that the utility model provided and light angle can be regulated on a large scale, owing to respectively adopted a burnt condenser lens of weak point in the homogenizer both sides, and through moving the first short burnt condenser lens between laser instrument and the homogenizer; And cooperate second of homogenizer opposite side to lack the emission angle that burnt condenser lens is regulated laser jointly, when first lacked burnt condenser lens near laser instrument, laser beam focused on the homogenizer surface; Satisfied the low-angle telecurie irradiation; Accomplish the collimation outgoing, reduced and optical loss, improved the utilization factor of laser; Reduce the design difficulty of cooling system, prolonged the useful life of semiconductor laser; When first lacked burnt condenser lens near homogenizer, laser beam was diffused in the homogenizer surface after focusing on, and has satisfied the wide-angle irradiation at short distance, and the electric torch effect when having eliminated wide-angle imaging has been improved illuminating effect; This shows light extraction efficiency when the angular adjustment optical system of the utility model original creation has been taken into account remote shooting really simultaneously and the irradiating angle when closely making a video recording.
Description of drawings
Fig. 1 is the laser illuminator system principle of compositionality synoptic diagram that prior art adopts the formula of falling Galileo telescope zoom system, pancreatic system.
Fig. 2 is the laser illuminator system inner structure sectional view that the utility model light utilization efficiency height and light angle can be regulated on a large scale.
Fig. 3 is that the utility model laser illuminator system is in the light path synoptic diagram under collimation (low-angle) state.
Fig. 4 is that the utility model laser illuminator system is in the light path synoptic diagram of dispersing under (wide-angle) state.
Embodiment
Below will combine accompanying drawing, the embodiment and the embodiment of the utility model specified, described specific embodiment in order to explain the utility model, is not the embodiment that is used to limit the utility model only.
A kind of light utilization efficiency height of the utility model and the laser illuminator system that light angle can be regulated on a large scale; Its inner structure is as shown in Figure 2; Comprise with optical axis and be installed in laser instrument 110, homogenizer 220 and angular adjustment optical system in the fixing socket 200; Along should be fixedly socket 200 axially be processed with through hole, be used for fixing installation laser instrument 110, homogenizer 220 and angular adjustment optical system; Wherein, said angular adjustment optical system comprises the first short burnt condenser lens 310 and the second short burnt condenser lens 320; The said first short burnt condenser lens 310 is arranged between laser instrument 110 and the homogenizer 220, and is slidingly connected in the through hole of said fixedly socket 200 through its holder 311, is used between laser instrument 110 and homogenizer 220, moving around; The said second short burnt condenser lens is fixedly connected in the through hole of said fixedly socket 200 through its holder 321, and the said relatively first short burnt condenser lens 310 is positioned at the opposite side of homogenizer 220; Said homogenizer 220 is fixedly connected in the through hole of said fixedly socket 200 through its holder 221.
So-called laser instrument 110 is well known to those skilled in the art, and for example semiconductor laser etc. repeats no more at this; So-called homogenizer 220 refers to and can carry out the device that homogenize is handled to irradiation laser facula in its surface, includes but not limited to single face acute-matte or two-sided acute-matte etc.; The burnt condenser lens 310 of so-called weak point or 320 refers to the condenser lens that has a short focal length at least, includes but not limited to plano-convex lens, biconvex lens, aspheric mirror or GRIN Lens etc.
In addition, as shown in Figure 2, said laser instrument 110 is arranged in the through hole of fixing socket 200; Be fixed on through screw 111 on the end face of fixing socket 200; The bottom of laser instrument 110 is connected on the wiring board 211, and the another side correspondence at wiring board 211 is provided with heating radiator 212 and radiator fan 213 simultaneously, as the cooling system of laser instrument 110; Reduce the working temperature of laser instrument 110 with simple design and lower cost, improved the useful life of laser instrument 110.
In the preferred implementation of the laser illuminator system that the utility model light utilization efficiency height and light angle can be regulated on a large scale; On the one hand; In conjunction with shown in Figure 3, the spacing between the said homogenizer 220 and the second short burnt condenser lens 320 equals the focal length of the second short burnt condenser lens 320; Lacking burnt condenser lens 320 through second thus can accomplish whole collimation outgoing in theory with the minimum laser bundle that focuses on the homogenizer 220, has farthest reduced optical loss, has reached the highest laser utilization factor.
On the other hand; In conjunction with shown in Figure 4; Spacing between said laser instrument 110 and the homogenizer 220 is greater than the focal length of the twice first short burnt condenser lens 310, and the spacing between promptly said laser instrument 110 and the homogenizer 220 surpasses the twice of the focal length of the first short burnt condenser lens 310; Can accomplish the angle of divergence of 180 degree in theory with focusing on earlier the maximum laser bundle that afterwards is diffused on the homogenizer through the second short burnt condenser lens 320 thus; The lighting requirement of 60 degree scopes when not only having satisfied existing picture pick-up device to wide-angle imaging, and satisfied lighting requirement wider when picture pick-up device is to wide-angle imaging in the future.
Compare with laser illuminator system of the prior art, the laser illuminator system that a kind of light utilization efficiency height that the utility model provided and light angle can be regulated on a large scale is owing to respectively adopted a burnt condenser lens of weak point in the homogenizer both sides; And through moving the first short burnt condenser lens between laser instrument and the homogenizer; And cooperate second of homogenizer opposite side to lack the emission angle that burnt condenser lens is regulated laser jointly, when first lacked burnt condenser lens near laser instrument, laser beam focused on the homogenizer surface; Satisfied the low-angle telecurie irradiation; Accomplish the collimation outgoing, reduced and optical loss, improved the utilization factor of laser; Reduce the design difficulty of cooling system, prolonged the useful life of semiconductor laser; When first lacked burnt condenser lens near homogenizer, laser beam was diffused in the homogenizer surface after focusing on, and has satisfied the wide-angle irradiation at short distance, and the electric torch effect when having eliminated wide-angle imaging has been improved illuminating effect.
Should be understood that; The preferred embodiment that the above is merely the utility model is not sufficient to limit the technical scheme of the utility model, concerning those of ordinary skills; Within the spirit and principle of the utility model; Can increase and decrease according to above-mentioned explanation, replacement, conversion or improvement, and all these increases and decreases, replacement, conversion or improve after technical scheme, all should belong to the protection domain of the utility model accompanying claims.
Claims (6)
1. the laser illuminator system that can regulate on a large scale of light utilization efficiency height and light angle comprises laser instrument, homogenizer and angular adjustment optical system; It is characterized in that: said angular adjustment optical system comprises the first short burnt condenser lens and the second short burnt condenser lens; The said first short burnt condenser lens is arranged between laser instrument and the homogenizer and can moves around; Relative this first short burnt condenser lens of the said second short burnt condenser lens is arranged on the opposite side of homogenizer.
2. the laser illuminator system that light utilization efficiency height according to claim 1 and light angle can be regulated on a large scale is characterized in that: the spacing between the said homogenizer and the second short burnt condenser lens equals the focal length of the second short burnt condenser lens.
3. the laser illuminator system that light utilization efficiency height according to claim 1 and light angle can be regulated on a large scale is characterized in that: the spacing between said laser instrument and the homogenizer is greater than the focal length of the twice first short burnt condenser lens.
4. the laser illuminator system that light utilization efficiency height according to claim 1 and light angle can be regulated on a large scale is characterized in that: said laser instrument is set to infrared laser; Said homogenizer is set to single face acute-matte or two-sided acute-matte.
5. the laser illuminator system that light utilization efficiency height according to claim 1 and light angle can be regulated on a large scale is characterized in that: the said first short burnt condenser lens is set to plano-convex lens, biconvex lens, aspheric mirror or GRIN Lens.
6. the laser illuminator system that light utilization efficiency height according to claim 1 and light angle can be regulated on a large scale is characterized in that: the said second short burnt condenser lens is set to plano-convex lens, biconvex lens, aspheric mirror or GRIN Lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204387354U CN202306090U (en) | 2011-11-08 | 2011-11-08 | Laser illuminating device possessing high light utilization rate and wide illuminating angle adjusting scope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204387354U CN202306090U (en) | 2011-11-08 | 2011-11-08 | Laser illuminating device possessing high light utilization rate and wide illuminating angle adjusting scope |
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| CN202306090U true CN202306090U (en) | 2012-07-04 |
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| CN2011204387354U Expired - Fee Related CN202306090U (en) | 2011-11-08 | 2011-11-08 | Laser illuminating device possessing high light utilization rate and wide illuminating angle adjusting scope |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345049A (en) * | 2013-07-08 | 2013-10-09 | 山东神戎电子股份有限公司 | Variable-focal-length laser illuminator with controllable luminous surface size |
| CN104456430A (en) * | 2014-12-22 | 2015-03-25 | 四川九洲视讯科技有限责任公司 | Lens system for light path adjusting |
| CN108267428A (en) * | 2016-12-30 | 2018-07-10 | 北京大学深圳研究生院 | Portable reinforced surface plasma resonance biosensor |
| CN108627113A (en) * | 2018-04-02 | 2018-10-09 | 北京信息科技大学 | Even light pipe lighting device for digital speckle pattern interferometry system |
| CN111135471A (en) * | 2020-01-11 | 2020-05-12 | 武汉时代阳光科技发展有限公司 | Novel infrared spectrum therapeutic instrument |
| CN112954152A (en) * | 2020-12-30 | 2021-06-11 | 神思电子技术股份有限公司 | System and method for eliminating light reflection of laser camera |
| CN113217832A (en) * | 2021-04-08 | 2021-08-06 | 上海工程技术大学 | High-power zooming laser lighting device |
-
2011
- 2011-11-08 CN CN2011204387354U patent/CN202306090U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345049A (en) * | 2013-07-08 | 2013-10-09 | 山东神戎电子股份有限公司 | Variable-focal-length laser illuminator with controllable luminous surface size |
| CN103345049B (en) * | 2013-07-08 | 2015-11-11 | 山东神戎电子股份有限公司 | A kind of Zoom laser illuminator of controllable luminous size |
| CN104456430A (en) * | 2014-12-22 | 2015-03-25 | 四川九洲视讯科技有限责任公司 | Lens system for light path adjusting |
| CN104456430B (en) * | 2014-12-22 | 2017-07-07 | 四川九洲视讯科技有限责任公司 | A kind of lens combination for light path adjustment |
| CN108267428A (en) * | 2016-12-30 | 2018-07-10 | 北京大学深圳研究生院 | Portable reinforced surface plasma resonance biosensor |
| CN108627113A (en) * | 2018-04-02 | 2018-10-09 | 北京信息科技大学 | Even light pipe lighting device for digital speckle pattern interferometry system |
| CN111135471A (en) * | 2020-01-11 | 2020-05-12 | 武汉时代阳光科技发展有限公司 | Novel infrared spectrum therapeutic instrument |
| CN112954152A (en) * | 2020-12-30 | 2021-06-11 | 神思电子技术股份有限公司 | System and method for eliminating light reflection of laser camera |
| CN113217832A (en) * | 2021-04-08 | 2021-08-06 | 上海工程技术大学 | High-power zooming laser lighting device |
| CN113217832B (en) * | 2021-04-08 | 2022-10-21 | 上海工程技术大学 | High-power zooming laser lighting device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20201108 |