CN101786201A - Multiplexed output semiconductor laser capable of adaptively adjusting focal length of lenses - Google Patents

Multiplexed output semiconductor laser capable of adaptively adjusting focal length of lenses Download PDF

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Publication number
CN101786201A
CN101786201A CN 201010104056 CN201010104056A CN101786201A CN 101786201 A CN101786201 A CN 101786201A CN 201010104056 CN201010104056 CN 201010104056 CN 201010104056 A CN201010104056 A CN 201010104056A CN 101786201 A CN101786201 A CN 101786201A
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CN
China
Prior art keywords
laser
focal length
lenses
wireless
semiconductor laser
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
CN 201010104056
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Chinese (zh)
Inventor
张贵新
罗兵
陈�胜
黎小林
徐曙光
饶宏
王鹏
赵宇明
罗承沐
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.)
Tsinghua University
Research Institute of Southern Power Grid Co Ltd
Original Assignee
Tsinghua University
Power Grid Technology Research Center of China Southern Power Grid 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 Tsinghua University, Power Grid Technology Research Center of China Southern Power Grid Co Ltd filed Critical Tsinghua University
Priority to CN 201010104056 priority Critical patent/CN101786201A/en
Publication of CN101786201A publication Critical patent/CN101786201A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a multiplexed output semiconductor laser capable of adaptively adjusting focal length of lenses and belongs to the technical fields of the power-transmission equipment and the laser process equipment. The multiplexed output semiconductor laser comprises a laser source and a lens assembly. The lens assembly is connected with the laser source by an optical cable. In the lens assembly, a plurality of lenses, a wireless thermodetector and a wireless range finder are arranged on a focal length adjusting plate. One end of a transmission rod is meshed with the focal length adjusting plate, while the other end thereof is connected with an output end of a motor. The motor controller is respectively connected with the motor, the wireless thermodetector and the wireless range finder by single wires. The laser of the invention can more effectively play a role of the efficiency of the laser and reduce the energy waste, more reasonably carries out real-time control on the optical power density and guarantees the working quality of the laser. The semiconductor laser of the invention particularly can be used in a laser de-icing system and randomly changes the focal length of the lenses according to the shape, the temperature and the distance of the de-icing target object so as to greatly improve the de-icing efficiency.

Description

The multi-channel output semiconductor laser that a kind of focal length of lens self adaptation is regulated
Technical field
The present invention relates to the multi-channel output semiconductor laser that a kind of focal length of lens self adaptation is regulated, belong to fields such as transmission facility and laser process equipment technology.
Background technology
Be accompanied by the fast development of full science and technology, semiconductor laser technique is constantly ripe, thereby promotes the extensive use of high power semiconductor lasers in the whole world.Comparing semiconductor laser with gas laser has many good qualities, photoelectric transformation efficiency height, volume are little, in light weight, cooling requires relatively low etc., but semiconductor laser also comes with some shortcomings, and, collimation lower as the single tube power output is relatively poor relatively etc.At two shortcomings more than the semiconductor laser, solution is: the output of multitube serial or parallel connection solves the little problem of power; The method that adds collimation lens solves the problem of collimation difference.During variable in distance between camera lens and the object, the spot size that acts on the object also can change thereupon, and when change of external conditions, changes as wind speed, and the effect of laser action will be different, and this just needs to measure in real time the temperature at laser action place.Because the focal length of lens is changeless during laser works, if want to regulate according to actual needs the focal length of lens, present solution all is earlier laser instrument to be quit work, and then the manual adjustment focal length, so just greatly reduces operating efficiency.Under opposite extreme situations relatively, overhead very high or as the position of lens in high temperature, high-tension place, just lens must be transferred to the place that the people can safety operation and just can regulate, operating procedure is very loaded down with trivial details.
Summary of the invention
The objective of the invention is to propose the multi-channel output semiconductor laser that a kind of focal length of lens self adaptation is regulated, automatically regulate the laser alignment focal length according to the temperature height apart from size and object laser action place between camera lens and the object, with different laser power densities object is shone as requested or heat, with energy savings, raise the efficiency.
The multi-channel output semiconductor laser that the focal length of lens self adaptation that the present invention proposes is regulated comprises lasing light emitter and set of lenses, and set of lenses links to each other with lasing light emitter by optical cable; Described set of lenses comprises many lens, wireless thermodetector, wireless distance finding instrument, focus adjustment plate, drive link, motor and electric machine controller; Described many lens, wireless thermodetector and wireless distance finding instrument place on the focus adjustment plate, and an end and the focus adjustment plate of described drive link are meshing with each other, and the other end of drive link links to each other with motor output end; Described electric machine controller links to each other with motor, wireless thermodetector and wireless distance finding instrument respectively by holding wire.
The multi-channel output semiconductor laser that a kind of focal length of lens self adaptation that the present invention proposes is regulated, its advantage is: it is convenient flexibly that focal length of lens self adaptation is regulated the use that makes laser instrument, improved the operating efficiency of device; Can more effective performance efficiency of laser, reduce energy dissipation; More reasonably control optical power density in real time, stop human error, guarantee the work quality of laser instrument.The multi-channel output semiconductor laser that the focal length of lens self adaptation that the present invention proposes is regulated especially can be used for the laser deicing system, and shape, temperature and distance according to the deicing object change lens focus arbitrarily, thereby improve deicing efficiency greatly.This laser instrument also can be used for occasions such as other LASER HEAT TREATMENT.
Description of drawings
Fig. 1 is a structured flowchart of inventing the multi-channel output semiconductor laser of the focal length of lens self adaptation adjusting that proposes.
Fig. 2 is the structural representation of set of lenses in the laser instrument shown in Figure 1.
Among Fig. 1 and Fig. 2, the 1st, lasing light emitter, the 2nd, optical cable, the 3rd, set of lenses, the 4th, laser beam output, the 5th, focus adjustment plate, the 6th, motor, the 7th, drive link, the 8th, collimation lens, the 9th, wireless thermodetector, the 10th, wireless distance finding instrument, the 11st, electric machine controller, the 12nd, base plate.
The specific embodiment
The multi-channel output semiconductor laser that the focal length of lens self adaptation that the present invention proposes is regulated, its structure comprises lasing light emitter 1 and set of lenses 3 as shown in Figure 1, set of lenses 3 links to each other with lasing light emitter 1 by optical cable 2.The structure of set of lenses 3 wherein comprises many lens 8, wireless thermodetector 9, wireless distance finding instrument 10, focus adjustment plate 5, drive link 7, motor 6 and electric machine controller 11 as shown in Figure 2.Many lens 3, wireless thermodetector 10 and wireless distance finding instrument 11 place on the focus adjustment plate 5, and an end and the focus adjustment plate 5 of drive link 7 are meshing with each other, and the other end of drive link 7 links to each other with the output of motor 6.Electric machine controller 11 links to each other with motor 6, wireless thermodetector 9 and wireless distance finding instrument 10 respectively by holding wire.Motor can be fixed on the base plate 12.
In the multi-channel output semiconductor laser that the focal length of lens self adaptation that the present invention proposes is regulated, drive link 7 links to each other with focus adjustment plate 5 in the screw thread rotation mode, the output of electric machine controller 11 links to each other with micromachine 6, and the input of electric machine controller receives the temperature signal of wireless thermodetector and the distance signal of wireless distance finding instrument.Micromachine controller 11 carries out analytical calculation according to the real-time measuring-signal of input, controls two motors 6 and rotates, and moves to promote focus adjustment plate 5 thereby drive drive link 6, realizes regulating the focal length of lens and laser power density.Here adopted micromachine controller 11 to control the mode of two micromachine synchronous workings simultaneously.
In the multi-channel output semiconductor laser that the focal length of lens self adaptation that the present invention proposes is regulated, motor can adopt battery-powered or laser energy supply, in one embodiment of the present of invention, micromachine has used the 20GP130-107 type reducing motor by Shenzhen Wanda's motor Manufacturing Co., Ltd, power output 0.72W.The rotation of motor is to control by controller.When being used for laser deicing, the common single-chip microcomputer of controller use can be realized the control to ice detachment.In one embodiment of the present of invention, controller used by Atmel company produce, model is the single-chip microcomputer of mega16.Controller carries out analytical calculation according to the distance of object distance and the size of laser action place temperature, thereby the control motor is regulated best focal length.In one embodiment of the present of invention, wireless thermodetector has used the infrared radiation thermometer of the KT15.82II P of prosperous positive development in science and technology Co., Ltd of Beijing BDCom, the wireless distance finding instrument has used Beijing will to descend the ZCCJ--70 rice laser range finder of Co., Ltd of electromechanical research institute all day long, lens are design research and development voluntarily, focal length is 40cm, two-sided plating 980nm laser anti-reflection film, printing opacity power is 70W.

Claims (1)

1. the multi-channel output semiconductor laser that focal length of lens self adaptation is regulated is characterized in that this laser instrument comprises lasing light emitter and set of lenses, and set of lenses links to each other with lasing light emitter by optical cable; Described set of lenses comprises many lens, wireless thermodetector, wireless distance finding instrument, focus adjustment plate, drive link, motor and electric machine controller; Described many lens, wireless thermodetector and wireless distance finding instrument place on the focus adjustment plate, and an end and the focus adjustment plate of described drive link are meshing with each other, and the other end of drive link links to each other with motor output end; Described electric machine controller links to each other with motor, wireless thermodetector and wireless distance finding instrument respectively by holding wire.
CN 201010104056 2010-01-29 2010-01-29 Multiplexed output semiconductor laser capable of adaptively adjusting focal length of lenses Pending CN101786201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010104056 CN101786201A (en) 2010-01-29 2010-01-29 Multiplexed output semiconductor laser capable of adaptively adjusting focal length of lenses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010104056 CN101786201A (en) 2010-01-29 2010-01-29 Multiplexed output semiconductor laser capable of adaptively adjusting focal length of lenses

Publications (1)

Publication Number Publication Date
CN101786201A true CN101786201A (en) 2010-07-28

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Application Number Title Priority Date Filing Date
CN 201010104056 Pending CN101786201A (en) 2010-01-29 2010-01-29 Multiplexed output semiconductor laser capable of adaptively adjusting focal length of lenses

Country Status (1)

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CN (1) CN101786201A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107079099A (en) * 2014-11-04 2017-08-18 高通股份有限公司 Method and apparatus for the camera auto-focusing based on Wi Fi ranging technologies

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107079099A (en) * 2014-11-04 2017-08-18 高通股份有限公司 Method and apparatus for the camera auto-focusing based on Wi Fi ranging technologies
CN107079099B (en) * 2014-11-04 2019-01-18 高通股份有限公司 Method and apparatus for the camera auto-focusing based on Wi-Fi ranging technology

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Application publication date: 20100728