CN202103313U - Laser source module - Google Patents
Laser source module Download PDFInfo
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- CN202103313U CN202103313U CN2011201345148U CN201120134514U CN202103313U CN 202103313 U CN202103313 U CN 202103313U CN 2011201345148 U CN2011201345148 U CN 2011201345148U CN 201120134514 U CN201120134514 U CN 201120134514U CN 202103313 U CN202103313 U CN 202103313U
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- light source
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Abstract
The utility model provides a laser source module, which comprises a red laser device, a green laser device, a blue laser device, a plurality of collimating lenses, a focus lens set and an optical conduction element. The light of the read leaser device, the light of the green laser device and the blue laser device are collimated through respective collimating lenses and then shot to the focus lens set parallely. The received red light, the green light and the blue light are coupled into the optical conduction element through the focus lens set and then output by the optical conduction element. The laser source module not only reduces the volume of the whole laser module, but also improves the system integration level. The number of used optical elements is greatly reduced compared with the prior art, accordingly, the laser source module is small in volume, high in integration level, convenient to install and transport and not easy to be damaged, and the coupling process is simple.
Description
Technical field
The utility model relates to optical field, particularly a kind of LASER Light Source module.
Background technology
Need to adopt semiconductor laser as light source usually in the occasion of high power laser light output in existing laser display or other.The Output optical power of single semiconductor laser or semiconductor laser package module is lower; Often can not satisfy the requirement of laser display, output polishing shape that often will a plurality of independently semiconductor lasers in the practical application, merge to together and export for high power laser sources.As shown in Figure 1, be the sketch map of LASER Light Source modular structure in the prior art.Wherein, the light that is sent by a plurality of lasers 101 incides respectively on the condenser lens 103 separately behind collimating lens 102 collimations separately, and line focus lens 103 focus on the optical fiber of back through separately and are coupled to the output of buncher 104 boundlings.
Therefore in the arranging of above-mentioned lasing fluorescence; Each laser back all is provided with more optical element such as collimating lens, condenser lens etc., and coupling process is complicated; And because more optical element and optical fiber; Not only cause in installation, transportation, integrated process fragilely, and make that the volume of light source module is big, integrated level is not high.
The utility model content
The purpose of the utility model is to overcome the defective of above-mentioned prior art, and the LASER Light Source module that a kind of volume is little, be easy to assemble is provided.
The above-mentioned purpose of the utility model realizes through following technical scheme:
An aspect according to the utility model provides a kind of LASER Light Source module, comprises red laser, green (light) laser and blue laser, a plurality of collimating lenses, focus lens group and photo-conduction cell;
The light of wherein said red laser, said green (light) laser and the emission of said blue laser incides on the said focus lens group after through collimating lens collimation separately; Said focus lens group is coupled into the ruddiness, blue light and the green glow that receive in the said photo-conduction cell, through said photo-conduction cell output.
Above-mentioned LASER Light Source module also can comprise reflecting element, the light of said red laser and the emission of said blue laser through collimating lens collimation separately after parallel inciding on the said focus lens group; Simultaneously, the green glow of said green (light) laser emission incides on the said reflecting element after through the collimating lens collimation, and the reflection through said reflecting element, incides on the said focus lens group.
Said red laser and blue laser are semiconductor laser, and said green (light) laser is a solid state laser.
In above-mentioned LASER Light Source module, said focus lens group is a Cassegrain telescope.
In above-mentioned LASER Light Source module; Said Cassegrain telescope comprises non-spherical reflector and spherical lens; Said non-spherical reflector is provided with perforate; Be coated with the reflectance coating of reflect red, blue light on the convex surface of said spherical lens, said spherical lens is arranged between said reflecting element and the said non-spherical reflector.
In above-mentioned LASER Light Source module; Said non-spherical reflector receives the ruddiness and the blue light of said red laser and the emission of blue laser process collimating lens; And reflect it on the said spherical lens; Said spherical lens reflects away the perforate through said non-spherical reflector of the ruddiness of said non-spherical reflector reflection and blue light once more, is coupled in the said photo-conduction cell.
In above-mentioned LASER Light Source module, said spherical lens receives the green glow by said reflected, and goes out through the perforate transmission of said non-spherical reflector, is coupled in the said smooth conductor.
In above-mentioned LASER Light Source module, said focus lens group is the achromatism focus lens group.
In above-mentioned LASER Light Source module; Said achromatism focus lens group is made up of two or more lens; Wherein said lens are processed by unlike material; Be used to receive ruddiness and blue light, and receive green glow, and they are coupled in the said photo-conduction cell through said reflected by behind the process collimating lens collimation of red laser and blue laser emission.
In above-mentioned LASER Light Source module, said photo-conduction cell is silica fiber or plastic fiber or liquid light guide pipe.
In above-mentioned LASER Light Source module, the end face of reception ruddiness, blue light and the green glow of said photo-conduction cell is positioned at the along of said focus lens group.
In above-mentioned LASER Light Source module, also comprise concentrating element, it is set to receive the light that is sent by said photo-conduction cell.
Compared with prior art, the LASER Light Source module of the utility model has the following advantages:
1, employed optical element is few, and coupling process is simple;
2, volume is little, integrated level is high, be convenient to install, transport, and not fragile.
Description of drawings
Fig. 1 is the sketch map of LASER Light Source modular structure in the prior art;
Fig. 2 is the LASER Light Source modular structure sketch map of the employing Cassegrain telescope of a preferred embodiment of the utility model;
Fig. 3 is the LASER Light Source modular structure sketch map of the employing achromatism focus lens group of another embodiment of the utility model;
Fig. 4 shows the cross-sectional view of ruddiness and blue light arrangement mode in the LASER Light Source module of a preferred embodiment of the utility model.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing the utility model being further specified, is the restriction to the utility model but should not be construed as.
The utility model discloses a kind of LASER Light Source module, comprise red laser, green (light) laser and blue laser, a plurality of collimating lenses, focus lens group and photo-conduction cell; The light of wherein said red laser, said green (light) laser and the emission of said blue laser incides on the said focus lens group after through collimating lens collimation separately; Said focus lens group is coupled into the ruddiness, blue light and the green glow that receive in the said photo-conduction cell, through said photo-conduction cell output.
Fig. 2 is the LASER Light Source modular structure sketch map of a preferred embodiment of the utility model; As shown in Figure 2; This LASER Light Source module comprises: red laser 201a (semiconductor laser), blue laser 201b (semiconductor laser) and green (light) laser 201c (solid state laser); Wherein red laser 201a and the parallel placement of blue laser 201b, green (light) laser 201c places with blue laser 201b is vertical; Also be included in the collimating lens 202 that is provided with on the exit direction of light of each laser emission; The reflecting element 203 that is provided with on the direction after the green glow process collimating lens 202 of green (light) laser 201c emission; Focus lens group 204 (frame of broken lines part among the figure) and photo-conduction cell 205, wherein focus lens group 204 is between reflecting element 203 and photo-conduction cell 205.
Generally speaking, the operation principle of this module be the blue light of ruddiness, blue laser 201b emission of red laser 201a emission through corresponding collimating lens collimation after, incide on the focus lens group 204; Simultaneously; Incide on the reflecting element 203 behind the collimating lens collimation of green glow through correspondence of green (light) laser 201c emission; And the reflection through reflecting element 203; Incide on the focus lens group 204, become white light through photo-conduction cell 205 outputs after ruddiness, green glow and blue light focus on through focus lens group 204.Below each parts are elaborated:
In the present embodiment, focus lens group 204 is a Cassegrain telescope, and Cassegrain telescope is a kind of reflecting telescope, comprises concave surface primary mirror and convex surface secondary mirror, and concave surface primary mirror central authorities are provided with perforate usually, and this concave surface primary mirror focus generally is positioned at said perforate back.The concave surface primary mirror can reflex to all light that are parallel to its optical axis incident on the convex surface secondary mirror, and the convex surface secondary mirror reflects all light again, and passes through the perforate outgoing of concave surface primary mirror, thereby converges to the along at concave surface primary mirror rear.
As shown in Figure 2, the concave surface primary mirror in the focus lens group 204 adopts non-spherical reflector 204b, and the convex surface secondary mirror adopts spherical lens 204a, and the concave surface primary mirror is designed to aspheric surface, can reduce spherical aberration, improves optical coupling efficiency.Non-spherical reflector 204b is provided with perforate 206; Said spherical lens 204a is arranged between reflecting element 203 and the non-spherical reflector 204b, is coated with the reflectance coating of reflect red, blue light on the convex surface of said spherical lens 204a.
Wherein, non-spherical reflector 204b is set to receive ruddiness and the blue light of being launched respectively through collimating lens by red laser 201a and blue laser 201b, and reflects it on the spherical lens 204a.Spherical lens 204a is set to receive ruddiness and the blue light through non-spherical reflector 204b reflection; And the perforate 206 of its reflection being passed non-spherical reflector 204b; Converge on the end face (receiving terminal) of the photo-conduction cell 205 that is placed on the Cassegrain telescope along, and then be coupled in the photo-conduction cell 205.It should be understood by one skilled in the art that; The position of perforate 206 should be according to confirming through the ruddiness of spherical lens 204a reflection, blue light with through the incident angle of the green glow of spherical lens 204a transmission; Promptly make them all converge on the end face of photo-conduction cell 205, be coupled into then in the photo-conduction cell 205 through this perforate 206.Preferably, perforate 206 is arranged on the central authorities of non-spherical reflector 204b, and the central shaft of spherical lens 204a is coaxial with the center of this perforate 206.
In the present embodiment, reflecting element 203 is arranged on from the corresponding collimating lens 202 of green (light) laser 201c to the light path the focus lens group 204, is used for green (light) laser 201c is reflexed to focus lens group 204 through the green glow of collimating lens 202 emissions.Particularly, as shown in Figure 2, incide on the reflecting element 203 behind the collimating lens collimation of green glow through correspondence of green (light) laser 201c emission; Through after the reflection of reflecting element 203; Incide on the spherical lens 204a, go out through perforate 206 transmissions of non-spherical reflector 204b, final and ruddiness, blue light converge to a branch of white light and converge on the end face of photo-conduction cell 205; And then be coupled in the photo-conduction cell 205, through photo-conduction cell 205 outputs.Preferably, be coated with the anti-reflection film of green glow on the surface of the reception green glow of spherical lens 204a, in order to improve the transmitance of green glow.Need to prove that the green glow that incides spherical lens 204a can be in the incident of the center of spherical lens, it can realize passing spheric reflection 204a equally.Alternatively; When green (light) laser 201c selects non-solid laser for use (such as semiconductor laser); Can be with placing green (light) laser 201c with red laser 201a or the identical arrangement of blue laser 201b; Be that green (light) laser 201c is directly incident on focus lens group 204 through behind its collimating lens 202, thereby save reflecting element 203.
Under the situation of above-mentioned employing Cassegrain telescope as focus lens group 204; Can shorten the length of optical system greatly, promptly spherical lens 204a is to the distance between the focus at non-spherical reflector 204b rear, thereby reduced the volume of whole light source module; Improved level of integrated system; And the quantity of employed optical element compares prior art and significantly reduces, and therefore be easy to assembling, carry, and coupling process is simple.In addition; Spherical lens 204a can be regarded as the condenser lens of green (light) laser 201c; The focal length that this shows the spherical lens 204a that green (light) laser 201c is corresponding shortens with the focal length of the focus lens group 204 of blue laser 201b correspondence than red laser 201a greatly; Therefore this LASER Light Source module requires also just to have reduced to the directive property of green glow, has made things convenient for the assembling of LASER Light Source module.Directive property is exactly when placing green (light) laser and the perpendicularity requirement of red laser, or perhaps the perpendicularity requirement of green (light) laser and blue laser.
Need to prove; In practical application; The quantity of above-mentioned red laser, green (light) laser, blue laser can be confirmed according to certain color matching rule; Promptly can determine the quantity of various primary colours lasers according to separate unit laser power and vision white balance power ratio, this knows those of ordinary skills.What for example in the utility model embodiment, adopt is D65 color matching rule (being that the RGB color-ratio is 1: 1: 1); Because red laser and blue laser all adopt semiconductor laser; And power is identical; The quantity of red laser and blue laser also should equate, for example can be 9 respectively.But; Because green (light) laser is a solid state laser in the present embodiment; Its power ratio red laser and blue laser power big a lot (for example in the present embodiment, the power of 1 green (light) laser is identical with the power of 9 red lasers), so; In order to satisfy above-mentioned color matching rule, only need 1 green laser to get final product.Certainly, it will be understood by those skilled in the art that in other embodiment of the utility model,, can number of lasers be changed according to the actual power of laser in order to realize desired different colours matching scheme.
In addition; The arrangement mode of 18 red lasers and blue laser is not unique yet among the utility model embodiment; For example, can 18 red lasers and blue laser be arranged that according to disk shown in Figure 4 wherein circle is represented red beam or blue beam; In the middle of light beam, reserve the space of reflecting element 203; Can 18 red lasers and blue laser be arranged according to other shape that also for example rectangle, polygon etc. can incide on the focus lens group 204 but its total arrangement principle is the light that each laser is launched.
The LASER Light Source module that the utility model provides can be applied to medical treatment, laser display and laser micro-processing and other fields.When being applied to the laser display field, need red laser 201a be set according to the employed light engine of laser display ray machine, the polarization direction of blue laser 201b and green (light) laser 201c.For example; LCOS Technology Need in the light engine uses polarized light source; Therefore be applied to laser display when this LASER Light Source module, and its light engine is when using LCOS, need be with red laser 201a among the utility model embodiment; The polarization direction of blue laser 201b and green (light) laser 201c all is set to identical polarization direction, promptly is that the P polarization perhaps is the s polarization entirely entirely; And the DLP in light engine technology is used non-polarized light, and when this LASER Light Source module is applied to laser display, and its light engine can consider the polarization direction of laser when using DLP, and promptly the polarization direction of all lasers can be identical, also can be different.
As the another kind of implementation of the utility model, focus lens group can also adopt the achromatism focus lens group.Achromatic lens is meant the set of lenses that the aberration of the light of three kinds of wavelength (blue light, green glow and ruddiness) is proofreaied and correct.Aberration is the chromatic dispersion of light in glass and the difference of refraction coefficient that comes from different wave length, thereby causes the light of different wave length that different focuses is arranged.Utilize the collocation of different materials, like crown board and the collocation of flint glass in convergent lens and divergent lens, the chromatic dispersion of every kind of glass can be compensated by another kind of glass, thereby it is minimum to make comprehensive aberration reduce to.The achromatism focus lens group is made up of the lens of coaxial two or more unlike materials among the utility model embodiment, and its effect is to focus on the light of multiple different colours in the photo-conduction cell.
Fig. 3 is the LASER Light Source modular structure sketch map with achromatism focus lens group of the utility model, and wherein the achromatism focus lens group comprises two lens 304a and 304b that processed by unlike material.In the present embodiment; The first lens 304a is set to receive ruddiness behind the collimating lens collimation and the blue light of being launched respectively by red laser 201a and blue laser 201b; And by the green glow through reflecting element 203 reflections of green (light) laser 201c emission; And ruddiness, blue light and green glow converged on the second lens 304b, all light that the second lens 304b is set to it is received converge to the receiving terminal of photo-conduction cell 205, are coupled in the photo-conduction cell 205.Preferably, the first lens 304a and the second lens 304b and photo-conduction cell 205 are set to coaxial.One with ordinary skill in the art would appreciate that in the achromatic lens group that the quantity of lens is not limited to two, also can be a plurality of, and the material of these lens is also all inequality.For example; First lens are set to receive ruddiness and the blue light by behind the process collimating lens collimation of red laser and blue laser emission; And through the green glow of said reflected; And said ruddiness, blue light and green glow converged on all the other lens, and its all optical coupling that receive are advanced in the said photo-conduction cell the most at last.
As can beappreciated from fig. 3, specific volume is little mutually, integrated level is high with prior art for the LASER Light Source module that present embodiment provides, and be convenient to assembling, and employed optical element is few, and coupling process is simple.
It should be noted last that above embodiment is only unrestricted in order to the technical scheme of explanation the utility model.Although the utility model is specified with reference to embodiment; Those of ordinary skill in the art is to be understood that; The technical scheme of the utility model is made amendment or is equal to replacement; The spirit and the scope that do not break away from the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.For example, what launch owing to laser in the utility model the foregoing description is direct is hollow beam, when some need use the field of solid light beam, can realize through increasing concentrating element.The concrete other end in photo-conduction cell output can add a concentrating element, and through the focusing of concentrating element, hollow beam can be changed into solid light beam.This concentrating element can be a globe lens, GRIN Lens or have other optical elements of focal power effect.In the utility model, said photo-conduction cell 205 can be a silica fiber, plastic fiber, liquid light guide pipe or other light transmitting materials.
Claims (12)
1. a LASER Light Source module is characterized in that, comprises red laser, green (light) laser and blue laser, a plurality of collimating lenses, focus lens group and photo-conduction cell;
The light of wherein said red laser, said green (light) laser and the emission of said blue laser incides on the said focus lens group after through collimating lens collimation separately; Said focus lens group is coupled into the ruddiness, blue light and the green glow that receive in the said photo-conduction cell, through said photo-conduction cell output.
2. LASER Light Source module according to claim 1 is characterized in that, also comprises reflecting element, the light of said red laser and the emission of said blue laser through collimating lens collimation separately after parallel inciding on the said focus lens group; Simultaneously, the green glow of said green (light) laser emission incides on the said reflecting element after through the collimating lens collimation, and the reflection through said reflecting element, incides on the said focus lens group.
3. LASER Light Source module according to claim 2 is characterized in that said red laser and blue laser are semiconductor laser, and said green (light) laser is a solid state laser.
4. according to claim 2 or 3 described LASER Light Source modules, it is characterized in that said focus lens group is a Cassegrain telescope.
5. LASER Light Source module according to claim 4; It is characterized in that; Said Cassegrain telescope comprises non-spherical reflector and spherical lens; Said non-spherical reflector is provided with perforate, is coated with the reflectance coating of reflect red, blue light on the convex surface of said spherical lens, and said spherical lens is arranged between said reflecting element and the said non-spherical reflector.
6. LASER Light Source module according to claim 5; It is characterized in that; Said non-spherical reflector receives the ruddiness and the blue light of said red laser and the emission of blue laser process collimating lens; And reflect it on the said spherical lens, said spherical lens reflects away the perforate through said non-spherical reflector of the ruddiness of said non-spherical reflector reflection and blue light once more, is coupled in the said photo-conduction cell.
7. LASER Light Source module according to claim 5 is characterized in that, said spherical lens receives the green glow by said reflected, and goes out through the perforate transmission of said non-spherical reflector, is coupled in the said smooth conductor.
8. according to claim 2 or 3 described LASER Light Source modules, it is characterized in that said focus lens group is the achromatism focus lens group.
9. LASER Light Source module according to claim 8; It is characterized in that; Said achromatism focus lens group is made up of two or more lens, and wherein said lens are processed by unlike material, is used to receive ruddiness and the blue light by behind the process collimating lens collimation of red laser and blue laser emission; And receive green glow, and they are coupled in the said photo-conduction cell through said reflected.
10. according to claim 1 or 2 each described LASER Light Source modules, it is characterized in that said photo-conduction cell is silica fiber or plastic fiber or liquid light guide pipe.
11. LASER Light Source module according to claim 1 is characterized in that, the end face of reception ruddiness, blue light and the green glow of said photo-conduction cell is positioned at the along of said focus lens group.
12. LASER Light Source module according to claim 1 is characterized in that, also comprises concentrating element, it is set to receive the light that is sent by said photo-conduction cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201345148U CN202103313U (en) | 2011-04-29 | 2011-04-29 | Laser source module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201345148U CN202103313U (en) | 2011-04-29 | 2011-04-29 | Laser source module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202103313U true CN202103313U (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201345148U Expired - Fee Related CN202103313U (en) | 2011-04-29 | 2011-04-29 | Laser source module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674909A (en) * | 2013-09-27 | 2014-03-26 | 上海电力学院 | Sensor for detecting gas nitro-aromatics explosives |
| CN107589498A (en) * | 2017-09-29 | 2018-01-16 | 重庆光遥光电科技有限公司 | A kind of coupled system that more branch semiconductor lasers are coupled into simple optical fiber |
| CN108931888A (en) * | 2017-05-24 | 2018-12-04 | 中芯国际集成电路制造(上海)有限公司 | The lighting system of litho machine |
-
2011
- 2011-04-29 CN CN2011201345148U patent/CN202103313U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674909A (en) * | 2013-09-27 | 2014-03-26 | 上海电力学院 | Sensor for detecting gas nitro-aromatics explosives |
| CN108931888A (en) * | 2017-05-24 | 2018-12-04 | 中芯国际集成电路制造(上海)有限公司 | The lighting system of litho machine |
| CN107589498A (en) * | 2017-09-29 | 2018-01-16 | 重庆光遥光电科技有限公司 | A kind of coupled system that more branch semiconductor lasers are coupled into simple optical fiber |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING GOODWILL LAW FIRM Free format text: FORMER OWNER: OPTOELECTRONICS TECHNOLOGY CO., LTD. OF BEIJING ZHONGSHIDA + CHINESE ACADEMY OF Effective date: 20140716 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100094 HAIDIAN, BEIJING TO: 100010 DONGCHENG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140716 Address after: 100010, D building, Fuhua building, No. 8 North Main Street, Beijing, Dongcheng District, Chaoyangmen, 14A Patentee after: Beijing Sega law firm Address before: 100094, Haidian District, Yongfeng hi tech industrial base, 3 North Wing Road, modern enterprise accelerator B block, 5 floor, Beijing Patentee before: Optoelectronics Technology Co., Ltd. Of Beijing Zhongshida & Chinese Academy Of |
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| 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: 20120104 Termination date: 20180429 |