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CN105098600A - Laser light source module - Google Patents

Laser light source module Download PDF

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Publication number
CN105098600A
CN105098600A CN201510528809.6A CN201510528809A CN105098600A CN 105098600 A CN105098600 A CN 105098600A CN 201510528809 A CN201510528809 A CN 201510528809A CN 105098600 A CN105098600 A CN 105098600A
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CN
China
Prior art keywords
light source
source module
laser
bar
reflecting prism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510528809.6A
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Chinese (zh)
Inventor
文玮
何龙
姜银磊
孙瑞鸿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Changhong Electric Co Ltd
Original Assignee
Sichuan Changhong Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Changhong Electric Co Ltd filed Critical Sichuan Changhong Electric Co Ltd
Priority to CN201510528809.6A priority Critical patent/CN105098600A/en
Publication of CN105098600A publication Critical patent/CN105098600A/en
Pending legal-status Critical Current

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Abstract

The invention relates to the technical field of lasers and provides a laser light source module with the object of solving the problems of wide gaps between light spots and low energy density generated by a conventional light source module. The laser light source module comprises a first light source module, a second light source module, reflection prism strips, a first light beam receiving face, plane reflection mirror strips, and a second light beam receiving face. The first light source module and the second light source module are oppositely parallel in space; the reflection prism strips are arranged between the first light source module and the second light source module; the reflection prism strips are used to make the laser beams from the first light source module and the second light source module turn vertically; the first light beam receiving face is used to receive laser beams turned by the reflection prism strips; the plane reflection mirror strips are used to make the laser beams penetrating the first light beam receiving face turn vertically; the second light beam receiving face is used to receive the light beams turned by the plane reflection mirror strips. The laser light source module of the invention is suitable for use on a laser display apparatus.

Description

LASER Light Source module
Technical field
The present invention relates to laser technology field, be specifically related to a kind of LASER Light Source module.
Background technology
The features such as laser diode light source has that brightness is high, good directionality, monochromaticjty are good, volume is little, reliable, the life-span long and energy-conservation, its application is just becoming more and more extensive.Need in laser display or other in use scenes of high brightness, high light beam quality laser, as laser television, laser projection and laser stage lamp etc., usually select the laser diode of high-power, small size as lighting source.But, owing to being subject to the restriction of semiconductor process technology and material self character, the Output optical power of current single laser diode light source is lower, the luminous power of such as single blue light laser diode can reach several watts, the luminous power of red laser diode also can arrive a watt level, and the luminous power of green laser diode only has tens to hundred milliwatts, the demand of laser display product to high power laser sources often can not be met.In actual applications, usually multiple independently laser diode is integrated together, and meets actual product needed by the design of certain moduli group.
A kind of way in current industry be by many laser diodes by array arrangement integration packaging on a panel module, single laser diode luminous power is completed on the whole simple cumulative, by arranging heavy caliber collector lens in rear end, optically focused is carried out to it, reach and promote the object that luminous power obtains higher laser energy density.Another kind does rule on aforementioned base, has done larger improvement, adopt two panels being integrated with laser diode, utilization and laser beam are 45° angle and the plane mirror bar of arranged in dislocation turns to the laser beam that a panel sends, the light that another panel sends is through the gap plane mirror bar, be irradiated to together with the light be diverted on the receiving plane of rear end, reach and promote the laser beam that luminous power obtains higher laser energy density.But by two kinds of technique study above, find to there is comparatively wide arc gap between the hot spot that exports, laser energy density also has room for promotion.Meanwhile, owing to not fully taking into account the beam characteristics of Appropriate application laser diode, make the volume of whole module comparatively large, be unfavorable for later stage complete machine structure and appearance design.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of LASER Light Source module, excesssive gap between the hot spot that solution conventional light source module sends, the problem that energy density is little.
For solving the problem, the technical solution used in the present invention is: LASER Light Source module, comprises the first light source module, secondary light source module, reflecting prism bar, the first beam reception face, plane mirror bar and the second beam reception face; First light source module and secondary light source module are spatially in the parallel placement of opposition, and reflecting prism bar is between the first light source module and secondary light source module;
Wherein, the laser beam vertical duction launched for making the first light source module, secondary light source module of reflecting prism bar; First beam reception face is for receiving the laser beam turned to by reflecting prism bar; Plane mirror bar is for making the laser beam vertical duction through the first beam reception face; Laser beam after second beam reception face turns to for receiving plane speculum bar;
The laser beam that first light source module and secondary light source module send is radiated on reflecting prism bar respectively, the first time space optically focused realizing light beam by the reflection of reflecting prism bar compresses and forms the first reverberation, and the hot spot that the first reverberation is formed on the first beam reception face is parallel to each other and do not overlap; Described first reverberation is radiated on plane mirror bar subsequently, and the second time space optically focused realizing light beam by reflection compresses and forms the second reverberation, the position of the second reverberation on the second beam reception face be parallel, do not overlap and closely continuously arrange.
Further, in described first light source module and secondary light source module, integration packaging has many congener laser diodes be arranged in array; And, the laser diode of the first light source module is equal with the laser diode quantity in secondary light source module and arrangement mode is consistent, spatially oppose after parallel placement, each laser diode in each laser diode of the first light source module and secondary light source module all can one_to_one corresponding.
Concrete, described reflecting prism bar is isosceles right-angle reflecting prism bar, and two central plane is used for reflection lasering beam.
Further, between the laser beam that a central plane normal direction of described reflecting prism bar and the first light source module are launched, angle is 45 °, angle between the laser beam that another central plane normal direction and secondary light source module are launched is 45 °, and the angle between the reflection lasering beam that the normal direction of plane mirror bar and prism send is 45 °.
Further, described laser diode front end is provided with micro collimating lens.
Further, the quantity of described reflecting prism bar is equal with the upper laser diode line number of the first light source module and secondary light source module, and the quantity of plane mirror bar is equal with the upper laser diode columns of the first light source module and secondary light source module.
Further, described reflecting prism bar and plane mirror bar spatially orthogonal thereto arrangement.
Further, the laser-beam irradiated face of described reflecting prism bar and plane mirror bar is all coated with the highly reflecting films matched with optical maser wavelength.
Concrete, described first beam reception face is optical reference plane.
Concrete, described second beam reception face is plane mirror or lens.
The invention has the beneficial effects as follows: the mode utilizing the spatially mutually orthogonal placement of isosceles right-angle prism and plane mirror bar, the laser beam sent the laser diode of integration packaging on light source module carries out the compression in row and column both direction, very effectively can reduce spot size, improve the optical energy density of unit are.
Accompanying drawing explanation
Fig. 1 is embodiment front view;
Fig. 2 is embodiment vertical view;
Fig. 3 is the design sketch of output facula spatial arrangement.
Number in figure: 100 is the first light source module, 101 is the laser diode of the first light source module, 102 is the collimating lens of the first light source module, 200 is secondary light source module, and 201 is the laser diode of secondary light source module, and 202 is the collimating lens of secondary light source module, 301-304 is first to fourth reflecting prism bar, 400 is the first beam reception face, and 501-504 is first to fourth plane mirror bar, and 600 is the second beam reception face.
Embodiment
The present invention is intended to propose a kind of LASER Light Source module, and further improving laser energy density on the basis of light source module in the prior art, reduces the volume of whole light source module.The present invention passes through isosceles right-angle reflecting prism and the plane mirror bar of the orthogonal placement of installation space, and dislocation arrangement is carried out to them, compression in row and column both direction is carried out to laser beam, the object that small-volume light source module produces high power density laser bundle can be realized.
Be described further with regard to technical scheme of the present invention below in conjunction with drawings and the specific embodiments.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
See Fig. 1, LASER Light Source module in the present embodiment comprises the first light source module 100, secondary light source module 200, isosceles right-angle reflecting prism bar 301-304, the first beam reception face 400, plane mirror bar 501-504 and the second beam reception face 600, first light source module 100 and secondary light source module 200 and adopts space to oppose parallel placement.Wherein, the laser beam vertical duction launched for making the first light source module 100, secondary light source module 200 of isosceles right-angle reflecting prism bar 301-304; Described first beam reception face 400 is for receiving the laser beam turned to by isosceles right-angle reflecting prism bar 301-304; Plane mirror bar 501-504 is for making the laser beam vertical duction through the first beam reception face 400; Laser beam after second beam reception face 600 turns to for receiving plane speculum bar 501-504.
On above-mentioned first light source module, integration packaging has the laser diode 101 of the arrangement in ranks, the dead ahead of each laser diode 101 is installed with a micro collimating lens 102, in like manner, in secondary light source module, integration packaging has the laser diode 201 of the arrangement in ranks, and the dead ahead of every laser diode 201 is installed with a micro collimating lens 202.After two light source modules carry out opposing parallel placement, each laser diode above all can one_to_one corresponding.
First the laser beam that laser diode 101 on above-mentioned first light source module 100 is launched carries out collimating and receiving light through micro collimating lens 102, then be irradiated on a central plane of isosceles right-angle reflecting prism bar 301, the first reverberation formed penetrates the first receiving plane 400, be irradiated on plane mirror bar 501-504 by order, reflected to form the second reverberation by plane mirror, the second beam reception face 600 forms hot spot.In like manner, the laser beam that laser diode 201 in secondary light source module 200 is launched is after micro collimating lens 202 collimates and receives light, be irradiated on another central plane of isosceles right-angle reflecting prism bar 301, the first reverberation formed penetrates the first reception 400, be irradiated on plane mirror bar 501-504 by order, reflected formation second reverberation by plane mirror, the second beam reception face 600 forms hot spot.Parallel to each other and the locations complementary of each laser beam in first reverberation and the second reverberation.In this way, be equivalent to utilize isosceles right-angle reflecting prism bar to complete the spatially first time compression of front end incoming laser beam, recycling plane mirror completes the compression of second time spatially of laser beam, the final laser facula irradiated on the receiving surface is closely filled, greatly improves the Output of laser energy density of whole LASER Light Source module.Meanwhile, because laser beam is compressed in the minimum region of receiving plane lastblock by light source module, effectively can reduce the volume of back-end optical structure, more be beneficial to complete machine structure design.
Above-mentioned isosceles right-angle reflecting prism bar 301-304 adopts order to arrange in the same way when mounted, in specific embodiment, the a certain same position row laser alignd in the first light source module 100 and secondary light source module 200 respectively in the center of the central plane up and down of isosceles right-angle reflecting prism bar 301 go out light center, the next column laser alignd in the first light source module 100 and secondary light source module 200 respectively in the center of the central plane up and down of adjacent isosceles right-angle reflecting prism bar 302 go out light center, and meet the columns requirement of light source module by that analogy; Simultaneously, the edge bottom of isosceles right-angle reflecting prism bar 301 and the uppermost edge of isosceles right-angle reflecting prism bar 302 are in same level, the edge bottom of isosceles right-angle reflecting prism bar 302 and the uppermost edge of isosceles right-angle reflecting prism bar 303 are in same level, and arrive last row laser of light source module by that analogy.
See Fig. 2, the vertical view of embodiment.In the embodiment of the present invention, the direction in space of isosceles right-angle reflecting prism bar 301-304 and the direction in space perpendicular quadrature of plane mirror bar 501-504.
Above-mentioned plane mirror bar 501-504 adopts order to arrange in the same way when mounted, in specific embodiment, the center of plane mirror bar 501 is aimed at and is gone out the mirror position of light center on isosceles right-angle reflecting prism bar 301-304 with a line laser in the first light source module 100 and secondary light source module 200, what the adjacent a line laser in the first light source module 100 and secondary light source module 200 was aimed in the center of plane mirror bar 502 goes out the mirror position of light center at isosceles right-angle reflecting prism bar 301-304, and the laser line number requirement met by that analogy on light source module, simultaneously, the low order end place vertical plane of plane mirror bar 501 overlaps with the high order end place vertical plane of plane mirror bar 502, the low order end place vertical plane of plane mirror bar 502 overlaps with the high order end place vertical plane of plane mirror bar 503, and arrives last column laser of light source module by that analogy.
When light source module works, the laser beam center position that on light source module, laser sends is after the reflection of isosceles right-angle reflecting prism bar central plane, incident direction is 90 ° with the angle with exit direction facing on face, subsequently after the reflection of plane mirror bar, the angle of incident direction and exit direction is also 90 ° on top view face.
Above-mentioned isosceles right-angle prism and plane mirror bar are made by optical glass, plated film processing process is carried out respectively at two central planes of prism and the reflecting surface of plane reflection lens, make it form high reflectivity for the laser wavelength on laser light source module, the material of this reflective coating can be metal or nonmetal composite oxide film material.
LASER Light Source module provided by the invention, the isosceles right-angle reflecting prism bar adopting orthogonal space to place and plane mirror bar, by rationally arranging the spatial arrangement mode of isosceles right-angle reflecting prism bar and plane mirror bar, realize carrying out space second-compressed to the laser beam of the ranks laser arrangement outgoing on the light source module of discrete setting.Consider the oblong nature that laser diode gives off laser beam, light source module provided by the invention had both eliminated the gap between laser facula minor axis, also consider and eliminate the gap between laser facula major axis, make hot spot on beam reception face can farthest close-packed arrays, concrete effect be see Fig. 3.The hot spot area occupied of such formation is little, and energy density is high, is beneficial to very much later stage optical treatment and practical application.
Should be noted that; these are only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or the replacement of directly or indirectly using other associated components to be equal to element described in the invention or amendment, include in scope of patent protection of the present invention.

Claims (10)

1. LASER Light Source module, it is characterized in that, comprise the first light source module (100), secondary light source module (200), reflecting prism bar (301,302,303,304), the first beam reception face (400), plane mirror bar (501,502,503,504) and the second beam reception face (600); First light source module (100) and secondary light source module (200) are spatially in the parallel placement of opposition, and reflecting prism bar (301,302,303,304) is positioned between the first light source module (100) and secondary light source module (200);
Wherein, reflecting prism bar (301,302,303,304) is for the laser beam vertical duction making the first light source module (100), secondary light source module (200) is launched; First beam reception face (400) is for receiving the laser beam turned to by reflecting prism bar (301,302,303,304); Plane mirror bar (501,502,503,504) is for making the laser beam vertical duction through the first beam reception face (400); Laser beam after second beam reception face (600) turns to for receiving plane speculum bar (501,502,503,504);
The laser beam that first light source module (100) and secondary light source module (200) send is radiated on reflecting prism bar (301,302,303,304) respectively, the first time space optically focused realizing laser beam by reflecting prism bar (301,302,303,304) reflection compress and forms the first reverberation, and the hot spot of the first reverberation upper formation in the first beam reception face (400) is parallel to each other and do not overlap; Described first reverberation is radiated on plane mirror bar (501,502,503,504) subsequently, the second time space optically focused realizing light beam by reflection compresses and forms the second reverberation, the position of the second reverberation on the second beam reception face (600) be parallel, do not overlap and closely continuously arrange.
2. LASER Light Source module as claimed in claim 1, it is characterized in that, described reflecting prism bar (301,302,303,304) is isosceles right-angle reflecting prism bar, and two central plane is used for reflection lasering beam.
3. LASER Light Source module as claimed in claim 2, it is characterized in that, between the laser beam that a central plane normal direction of described reflecting prism bar (301,302,303,304) and the first light source module (100) are launched, angle is 45 °, angle between the laser beam that another central plane normal direction and secondary light source module (200) are launched is 45 °, and the angle between the reflection lasering beam that the normal direction of plane mirror bar (501,502,503,504) and reflecting prism bar (301,302,303,304) send is 45 °.
4. LASER Light Source module as claimed in claim 3, is characterized in that, described first light source module (100) and the upper integration packaging of secondary light source module (200) have many congener laser diodes be arranged in array; And, the laser diode (101) of the first light source module (100) is equal with laser diode (201) quantity in secondary light source module (200) and arrangement mode is consistent, spatially oppose after parallel placement, each laser diode (201) in each laser diode (101) of the first light source module (100) and secondary light source module (200) all can one_to_one corresponding.
5. LASER Light Source module as claimed in claim 4, it is characterized in that, described laser diode (101,201) front end is provided with micro collimating lens (102,202).
6. LASER Light Source module as claimed in claim 5, it is characterized in that, the quantity of described reflecting prism bar (301,302,303,304) is equal with the upper laser diode line number of the first light source module (100) and secondary light source module (200), and the quantity of plane mirror bar (501,502,503,504) is equal with the upper laser diode columns of the first light source module (100) and secondary light source module (200).
7. LASER Light Source module as claimed in claim 6, is characterized in that, described reflecting prism bar (301,302,303,304) and plane mirror bar (501,502,503,504) spatially orthogonal thereto arrangement.
8. LASER Light Source module as claimed in claim 1, it is characterized in that, the laser-beam irradiated face of described reflecting prism bar (301,302,303,304) and plane mirror bar (501,502,503,504) is all coated with the highly reflecting films matched with optical maser wavelength.
9. LASER Light Source module as claimed in claim 1, it is characterized in that, described first beam reception face (400) is optical reference plane.
10. LASER Light Source module as claimed in claim 1, it is characterized in that, described second beam reception face (600) is plane mirror or lens.
CN201510528809.6A 2015-08-26 2015-08-26 Laser light source module Pending CN105098600A (en)

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Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106911065A (en) * 2015-12-23 2017-06-30 无锡视美乐激光显示科技有限公司 A kind of LASER Light Source set combination structure
CN108020912A (en) * 2016-11-03 2018-05-11 江苏艾洛维显示科技股份有限公司 A kind of laser pack secondary reflection structure
CN110488427A (en) * 2018-05-14 2019-11-22 深圳市联赢激光股份有限公司 A kind of laser light source coupling device and method
CN110543017A (en) * 2018-06-12 2019-12-06 深圳疆程技术有限公司 A laser lighting device and a holographic head-up display system
CN110967874A (en) * 2019-12-20 2020-04-07 深圳疆程技术有限公司 Backlight module, liquid crystal display and vehicle-mounted head-up display system
CN112540499A (en) * 2019-09-20 2021-03-23 精工爱普生株式会社 Projector with a light source
CN112661329A (en) * 2020-12-02 2021-04-16 甘肃远效科技信息咨询有限公司 Water purification system
TWI736828B (en) * 2018-01-31 2021-08-21 美商莫仕有限公司 Connectors and connector components

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102436129A (en) * 2009-06-30 2012-05-02 卡西欧计算机株式会社 Light source unit, light source apparatus and projector
CN104297927A (en) * 2014-09-29 2015-01-21 四川长虹电器股份有限公司 Laser diode array light source module set

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102436129A (en) * 2009-06-30 2012-05-02 卡西欧计算机株式会社 Light source unit, light source apparatus and projector
CN104297927A (en) * 2014-09-29 2015-01-21 四川长虹电器股份有限公司 Laser diode array light source module set

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106911065A (en) * 2015-12-23 2017-06-30 无锡视美乐激光显示科技有限公司 A kind of LASER Light Source set combination structure
CN108020912A (en) * 2016-11-03 2018-05-11 江苏艾洛维显示科技股份有限公司 A kind of laser pack secondary reflection structure
TWI736828B (en) * 2018-01-31 2021-08-21 美商莫仕有限公司 Connectors and connector components
CN110488427A (en) * 2018-05-14 2019-11-22 深圳市联赢激光股份有限公司 A kind of laser light source coupling device and method
CN110543017A (en) * 2018-06-12 2019-12-06 深圳疆程技术有限公司 A laser lighting device and a holographic head-up display system
CN112540499A (en) * 2019-09-20 2021-03-23 精工爱普生株式会社 Projector with a light source
CN110967874A (en) * 2019-12-20 2020-04-07 深圳疆程技术有限公司 Backlight module, liquid crystal display and vehicle-mounted head-up display system
CN110967874B (en) * 2019-12-20 2024-06-21 合肥疆程技术有限公司 Vehicle-mounted head-up display system
CN112661329A (en) * 2020-12-02 2021-04-16 甘肃远效科技信息咨询有限公司 Water purification system

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Application publication date: 20151125