CN203553607U - Laser module group - Google Patents
Laser module group Download PDFInfo
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- CN203553607U CN203553607U CN201320602948.5U CN201320602948U CN203553607U CN 203553607 U CN203553607 U CN 203553607U CN 201320602948 U CN201320602948 U CN 201320602948U CN 203553607 U CN203553607 U CN 203553607U
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Abstract
The utility model discloses a laser module group comprising a laser device pedestal, a plurality of laser devices, a focusing lens barrel, and an optical fiber socket. The laser device pedestal can be used to accommodate a plurality of laser devices, and can be used to satisfy the requirements of the laser devices on the heat dissipation, and can be used to accommodate to accommodate a collimating lens. The laser devices can be the semiconductor laser devices or the solid laser devices. The inner side of the focusing lens barrel is provided with a focusing lens group, and an optical plug can be SMA or other optical fiber standard plugs. The light beams emitted by the laser devices can be collimated to be the parallel lights by the collimating lens, and enters the optical fiber after the coupling of the focusing lens barrel, and then can enter a laser display system after the transmission of the optical fiber. The laser module group is advantageous in that a plurality of laser devices of the laser module group can enter one optical fiber after the coupling of the multi-piece coupling system or the aspherical coupling system, and the structure adopts the modularization design, the structure can be compact, the processing costs of the elements can be low, the installation technology can be simple, the large-scale production can be facilitated, and the low-cost requirement of the laser display can be satisfied.
Description
Technical field
The utility model belongs to LASER Light Source field, relates to a kind of laser module, particularly a kind of laser module for the output of multi-laser coupling fiber, and target application is laser display light-source system used.
Background technology
Due to the special parameter of visible laser, red blue light is semiconductor laser, luminous power is only the go out luminous powers of hundred milliwatts to watt magnitude, green (light) laser is frequency double laser, going out luminous power is watt magnitude, the light source that three look lasers show as high brightness laser need to be brought together use by multiple lasers while using, and current technology is mainly that multiple red blue-green Laser are coupled in an optical fiber, then multifiber is combined into a branch of follow-up optical projection system that enters.In the laser module of existing laser display light source, for semiconductor laser, due to the difference of the beam characteristics on laser both direction, mostly adopted the mode of multiple cylindrical lenses to compress coupled light beam, the manufacturing cost of cylindrical lens is high, and assembly technology complexity, location difficulty, be not suitable for standardization and produce.For diode pumped solid state laser, because single laser volume is larger, be difficult to make the laser coupled from multiple (being greater than 2) laser to enter among an optical fiber, limit the usage quantity of laser in laser display light source, thereby limited the maximum display brightness of laser display system.
Utility model content
Present inventor considers the above-mentioned situation of prior art and has made the utility model, main purpose of the present utility model is to overcome shortcoming and the diode pumped solid state laser that in the amasthenic lens system of prior art, eyeglass manufacturing cost is too high, assembly technology is complicated and is difficult to the defect that multichannel is coupled, and a kind of semiconductor laser and the shared laser module of diode pumped solid state laser are provided, it has simple in structure, with low cost, the simple advantage of manufacturing process.The field of main application is the visible light source system that laser display is used.
According to embodiment of the present utility model, a kind of laser module for optical projection system is provided, it is characterized in that, described laser module comprises: laser base, is wherein provided with multiple lasers; Amasthenic lens system, is used for Laser Focusing that described multiple lasers are sent from described laser base; Fiber-optical socket, it is connected between amasthenic lens system and optical fiber, for by the laser coupled after focusing on via described amasthenic lens system to optical fiber, and deliver to optical projection system via optical fiber transmission; And Feedback of Power system, it is connected to described multiple laser, and comprises photodiode, and described photodiode is used for the power of the laser from described amasthenic lens system output to detect.
According to embodiment of the present utility model, described laser base also comprises laser fixed structure, collimating lens mounting structure and is arranged on the collimating lens in described collimating lens mounting structure, and described multiple lasers are installed in described laser fixed structure.
According to embodiment of the present utility model, described collimating lens is globe lens, and described amasthenic lens system is comprised of multiple-piece set of lenses or non-spherical lens.
According to embodiment of the present utility model, described collimating lens is globe lens, and described amasthenic lens system is comprised of globe lens.
According to embodiment of the present utility model, described multiple laser is arranged in convergence shape along circular radius, the common center of circle of pointing to described circle of laser of sending from described multiple lasers, described laser base also comprises and described multiple lasers multiple speculums one to one, is used for the each self-reflection of laser sending from described multiple lasers, outputing in parallel with each other described amasthenic lens system.
According to embodiment of the present utility model, described multiple lasers are 6 diode pumped solid state lasers, and via 6 bundle laser vertical also outputs parallel to each other in laser base bottom surface of described speculum reflection, the mutual spacing of described 6 bundle laser is less than 12 millimeters.
According to embodiment of the present utility model, described multiple lasers are visible lasers of semiconductor laser, solid state laser or other types.
According to embodiment of the present utility model, described Feedback of Power system also comprises light splitting piece and the control circuit of reflecting part laser, and, described Feedback of Power system utilizes described photodiode to carry out power detection to the laser of described light splitting piece reflection, and the signal of telecommunication corresponding with laser power of described photodiode output is sent to described control circuit, thereby calculate the power of the laser that amasthenic lens system exports.
According to embodiment of the present utility model, it is SMA905 or FC standard plug for described fiber-optical socket.
According to embodiment of the present utility model, described multiple laser is 7 semiconductor lasers that are arranged in described laser fixed structure, it between the diameter of described collimating lens mounting structure and collimating lens, is same size loose fit tolerance, utilize glue or Welding Structure to fix the position of described collimating lens, from seven bundle laser of 7 semiconductor laser outputs, be parallel to each other, described 7 semiconductor lasers are fixed on orthohexagonal six summits and hexagonal center in described laser fixed structure, the described orthohexagonal length of side is 6.1 millimeters to 8.1 millimeters.
Advantage beneficial effect major embodiment of the present utility model is in the following areas: collimating lens and condenser lens that the laser module in the utility model is used all can be globe lens, the laser base of this form can meet the installation of semiconductor laser TO packaged type and diode pumped solid state laser simultaneously, after two kinds of lasers are arranged on base, follow-up focusing barrel can be general, the consistency that improves part, effectively reduces production cost.The all parts simple structure of this laser module on the whole, therefore its low processing cost, assembling are simple, highly versatile, the large-scale low-cost of very applicable laser display light source is produced.
Accompanying drawing explanation
Fig. 1 is the base scheme schematic diagram according to the semiconductor laser of the laser module of embodiment of the present utility model;
Fig. 2 is the base scheme schematic diagram according to the semiconductor solid state laser of the laser module of embodiment of the present utility model;
Fig. 3 is according to the structural representation of the amasthenic lens system of the laser module of embodiment of the present utility model;
Fig. 4 is according to the structural representation of the Feedback of Power system of the laser module of embodiment of the present utility model.
Embodiment
Enumerate preferred embodiment of the present utility model below, and carry out by reference to the accompanying drawings the clearer the utility model that intactly illustrates.
Fig. 1 is the base scheme schematic diagram according to the semiconductor laser of the laser module of embodiment of the present utility model.As shown in Figure 1, the laser base 1 in the present embodiment comprises: semiconductor laser fixed structure 2; Collimating lens mounting structure 3; Be arranged on seven semiconductor lasers 4 in fixed structure 2; Collimating lens 5, it is globe lens, be placed in collimating lens mounting structure 3, it between the diameter of collimating lens mounting structure 3 and collimating lens, is same size loose fit tolerance, collimating lens utilizes glue or Welding Structure to fix position, obtain seven bundle collimation output beams, described seven bundle collimation output beams are parallel to each other (outgoing in the same way), and seven restraint the collimated light beam being parallel to each other can guarantee that light beam obtains the focal beam spot of a diameter minimum after amasthenic lens system on projection surface.The distance being arranged between the laser in fixed structure is to set up model according to the coefficient of heat transfer of the luminous power of existing visible waveband laser and submount material, calculates simulation and draws concrete numerical value.This embodiment for visible laser be the visible laser that luminous power 1W, the manufactured materials of base is 6061 aluminium alloys, through modeling Simulation, calculate, phase mutual edge distance between laser in fixed structure 2 can be in 6.1 to 8.1mm scope, be preferably 7.1mm(with laser center calculation), determining on the basis of this distance, focal length ratio between design collimating lens and amasthenic lens, goes thereby the hot spot of 7 visible light semiconductor lasers can be focused in the Transmission Fibers of core diameter 400um.
Fig. 2 is the base scheme schematic diagram according to the semiconductor solid state laser of the laser module of embodiment of the present utility model.As shown in Figure 2, according to the laser base 6 of another embodiment of the present utility model, comprise diode pumped solid state laser fixed structure 7, six diode pumped solid state lasers 8 are installed in fixed structure 7, due to the radiating requirements (bottom surface is radiating surface) of large-power semiconductor ripple solid state laser, therefore need diode pumped solid state laser 8 to obtain the light beam output perpendicular to bottom surface by 45 ° of inner speculums, obtain six bundle collimation output beams, being limited in diameter 12mm or less circular scope of this six bundles collimated light beam, described six bundle collimation output beams are perpendicular to base the output that is parallel to each other, six restraint the collimated light beam being parallel to each other can guarantee that light beam obtains the hot spot that a focus coincides together after following amasthenic lens system in focus, thereby can be coupled in optical fiber.The technical scheme of this embodiment can be applicable to existing demonstration relatively high power green (light) laser.
Fig. 3 is according to the structural representation of the amasthenic lens system of the laser module of embodiment of the present utility model.As shown in Figure 3, the focus lens group that comprises lens barrel structure 9, formed by condenser lens 10 and 11 according to the amasthenic lens system in embodiment of the present utility model.Condenser lens 10 and 11 is installed in lens barrel structure 9, by lens barrel structure 9, guarantee the concentricity of two lens, between two condenser lenses 10 and 11, utilize spacer ring to guarantee phase mutual edge distance, this distance is carried out analog computation by softwares such as ZEMAX, thereby realize the basic function focusing on, effectively eliminate the unfavorable factors such as spherical aberration, effectively improved coupling effect.This focus lens group can be also a slice lens or multi-disc lens more, is not limited only to two.
Fig. 4 is according to the structural representation of the Feedback of Power system of the laser module of embodiment of the present utility model.As shown in Figure 4, the Feedback of Power system in the present embodiment is installed in lens barrel structure 9 inside, and it comprises light splitting piece 13, photodiode 14, control circuit 15.Light splitting piece 13 is fixed on lens barrel 9 inside by a base, with light direction angle at 45 °, the reflectivity of light splitting piece 13 choose the parameter that needs reference photodiode 14, to be no more than, to measure threshold value and be as the criterion.The installation site of photodiode 14 determined by light splitting piece 13, and light beam is with through inciding and be as the criterion on photodiode 14 after light splitting piece 13 reflections, and position accuracy demand is lower.Output beam reflects by light splitting piece 13, part light is exported on photodiode 14, photodiode 14 is electronic simulation signal (relevant to light intensity) by light energy conversion, by control circuit, be transferred to control circuit 15, the power stage of laser monitored or controls by control circuit 15 according to the electronic simulation signal obtaining.In addition, transmission is coupled in optical fiber, is entered follow-up optical projection system by the laser of light splitting piece 13.
By upper, according to the laser base of embodiment of the present utility model, can support 7 semiconductor lasers or 6 diode pumped solid state lasers, this laser base can meet the heat radiation requirement of laser, and provides location for the installation of collimating lens.
Wherein, semiconductor laser output facula close-packed arrays, output beam forms arrangement mode the most closely according to hexagon, and semiconductor laser output beams collimates by non-spherical lens.
Wherein, diode pumped solid state laser output facula close-packed arrays, output beam forms arrangement mode the most closely according to hexagon.
Amasthenic lens comprises lens barrel, and multiple-piece Lens Coupling system or Aspheric lenses coupler system, can effectively reduce the unfavorable factors such as spherical aberration, distortion.
Fiber-optical socket accesses Transmission Fibers fast for laser module, can match according to different demands and various standard plug.
Feedback of Power system, it comprises photodiode and supporting control circuit, for monitoring or control the power output of laser module, can obtain the Laser output of power invariability.
Although more than described embodiment of the present utility model, but those skilled in the art is to be understood that, these only illustrate, and are not deviating under the prerequisite of principle of the present utility model and essence, can make numerous variations or modification to these execution modes.Therefore, protection range of the present utility model is limited by appended claims.
In sum, those skilled in the art will appreciate that above-described embodiment of the present utility model can be made various modifications, modification and be replaced, it all falls into the protection range of the present utility model limiting as claims.
Claims (10)
1. for a laser module for optical projection system, it is characterized in that, described laser module comprises:
Laser base, is wherein provided with multiple lasers;
Amasthenic lens system, is used for Laser Focusing that described multiple lasers are sent from described laser base;
Fiber-optical socket, it is connected between amasthenic lens system and optical fiber, for the laser coupled after focusing on via described amasthenic lens system is delivered to optical projection system to optical fiber and via optical fiber transmission; And
Feedback of Power system, it is connected to described multiple laser, and comprises photodiode, and described photodiode is used for the power of the laser from described amasthenic lens system output to detect.
2. laser module according to claim 1, it is characterized in that, described laser base also comprises laser fixed structure, collimating lens mounting structure and is arranged on the collimating lens in described collimating lens mounting structure, and described multiple lasers are installed in described laser fixed structure.
3. laser module according to claim 2, is characterized in that, described collimating lens is globe lens, and described amasthenic lens system is comprised of multiple-piece set of lenses or non-spherical lens.
4. laser module according to claim 2, is characterized in that, described collimating lens is globe lens, and described amasthenic lens system is comprised of globe lens.
5. laser module according to claim 1, is characterized in that, described multiple lasers are arranged in convergence shape along circular radius, the common center of circle of pointing to described circle of laser of sending from described multiple lasers,
Described laser base also comprises and described multiple lasers multiple speculums one to one, is used for the each self-reflection of laser sending from described multiple lasers, outputing in parallel with each other described amasthenic lens system.
6. laser module according to claim 5, it is characterized in that, described multiple laser is 6 diode pumped solid state lasers, and via 6 bundle laser vertical also outputs parallel to each other in laser base bottom surface of described speculum reflection, the mutual spacing of described 6 bundle laser is less than 12 millimeters.
7. laser module according to claim 1, is characterized in that, described multiple lasers are visible lasers of semiconductor laser, solid state laser or other types.
8. laser module according to claim 1, is characterized in that, described Feedback of Power system also comprises light splitting piece and the control circuit of reflecting part laser,
And, described Feedback of Power system utilizes described photodiode to carry out power detection to the laser of described light splitting piece reflection, and the signal of telecommunication corresponding with laser power of described photodiode output is sent to described control circuit, thereby calculate the power of the laser that amasthenic lens system exports.
9. laser module according to claim 1, is characterized in that, described fiber-optical socket is SMA905 or FC standard plug.
10. laser module according to claim 2, it is characterized in that, described multiple laser is 7 semiconductor lasers that are arranged in described laser fixed structure, it between the diameter of described collimating lens mounting structure and collimating lens, is same size loose fit tolerance, utilize glue or Welding Structure to fix the position of described collimating lens, from seven bundle laser of 7 semiconductor laser outputs, be parallel to each other, described 7 semiconductor lasers are fixed on orthohexagonal six summits and hexagonal center in described laser fixed structure, the described orthohexagonal length of side is 6.1 millimeters to 8.1 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320602948.5U CN203553607U (en) | 2013-09-27 | 2013-09-27 | Laser module group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320602948.5U CN203553607U (en) | 2013-09-27 | 2013-09-27 | Laser module group |
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| CN203553607U true CN203553607U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320602948.5U Expired - Lifetime CN203553607U (en) | 2013-09-27 | 2013-09-27 | Laser module group |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015043521A1 (en) * | 2013-09-27 | 2015-04-02 | 深圳极光世纪科技有限公司 | Laser module |
| CN107069418A (en) * | 2016-11-29 | 2017-08-18 | 中国电子科技集团公司第三十四研究所 | A kind of multiple diode laser array encapsulating structures |
| CN109976077A (en) * | 2017-12-19 | 2019-07-05 | 夏普株式会社 | Light source module group |
-
2013
- 2013-09-27 CN CN201320602948.5U patent/CN203553607U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015043521A1 (en) * | 2013-09-27 | 2015-04-02 | 深圳极光世纪科技有限公司 | Laser module |
| CN107069418A (en) * | 2016-11-29 | 2017-08-18 | 中国电子科技集团公司第三十四研究所 | A kind of multiple diode laser array encapsulating structures |
| CN109976077A (en) * | 2017-12-19 | 2019-07-05 | 夏普株式会社 | Light source module group |
| CN109976077B (en) * | 2017-12-19 | 2020-12-15 | 夏普株式会社 | Light source module |
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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: 20161111 Address after: 621000, building 1, Nanhu Electronic Information Industrial Park, Mianyang, Sichuan Patentee after: SINOLASER PROJECTION TECHNOLOGY Co.,Ltd. Address before: 518000 Guangdong city of Shenzhen province Nanshan District Xili Sports Center affiliated building B 11A Patentee before: SHENZHEN AURORA CENTURY TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
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| CX01 | Expiry of patent term |