CN201758240U - Semiconductor laser collimation beam expander - Google Patents
Semiconductor laser collimation beam expander Download PDFInfo
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- CN201758240U CN201758240U CN2010202028615U CN201020202861U CN201758240U CN 201758240 U CN201758240 U CN 201758240U CN 2010202028615 U CN2010202028615 U CN 2010202028615U CN 201020202861 U CN201020202861 U CN 201020202861U CN 201758240 U CN201758240 U CN 201758240U
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Abstract
A semiconductor laser alignment beam expander comprises the compounds of a laser, a collimator and a beam expander, and is characterized in that the axes of the three components are the same; the laser component and the collimator component are cylinder bodies; the beam expander component is a conical cylinder body; the components are connected with each other through threads and the distance is adjustable; the whole device is fixed by the threads on the side wall of the beam expander; the laser and lens can be replaced; the front and the rear sides of the lens are locked by using a small sleeve; and the space between the lenses can be changed through the small sleeves on the front and the rear sides of the lenses. The semiconductor laser alignment beam expander has small divergent angle, variable focus of collimation lens unit, weak diffraction light, low cost and strong practicability and convenient operation, and is suitable for batch production.
Description
Technical field
The utility model relates to a kind of semiconductor laser alignment beam expander, the semiconductor laser alignment beam expander that especially a kind of weak diffraction is variable times.
Background technology
Semiconductor laser because of its high brightness, monochromaticjty is good, volume is little, low in energy consumption, advantage such as the life-span is grown, can modulate, be widely used in fields such as laser radar, mapping, communication, printing, holography, information stores, but its directivity is improved further according to the purposes needs.Because of being that two angles of divergence of common lasers are respectively about 10 ° and 40 °, and need the directional light of different hot spots in the real work, so need collimate and expand bundle laser.
At present, the most tight shot of laser collimator commonly used or the transmitance of adjustable camera lens are not high, and the angle of divergence is big, and capacity usage ratio reduces greatly, causes waste significantly and increase emergent power by the raising laser power; Beam expander generally is the fixed bundle that doubly expands, and promptly multiplication factor is fixed, variable times of its system complex of beam expander of part, and system is longer; In the prior art, there is not effectively to solve the problem of laser diffraction in addition, the many and out-of-shape of laser facula diffraction fringe, therefore the application to laser has certain limitation.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, proposes a kind of semiconductor laser, collimater and beam expander in one, compact conformation, can focus the variable sesquialter conductor of the weak diffraction laser alignment beam expander that transmitance is high.
Problem and purpose based on above-mentioned existence, the measure that the utility model is taked comprises laser assembly, collimator assembly and beam expander assembly, it is adjustable to it is characterized in that being threaded between laser assembly I, collimator assembly II and the beam expander assembly III, is regulated and locking by small sleeve before and after each lens;
Described laser assembly I is a cylindrical tube, and wherein, the power supply of semiconductor laser is connected on the slot, is fixedly clamped by front bayonet slot and back draw-in groove; Front bayonet slot and back draw-in groove are threaded with the laser outer sleeve; The laser outer sleeve is inboard to be connected with collimator assembly II inner sleeve outside screw, is locked by small sleeve I;
Described collimator assembly II is a cylindrical tube, and wherein, the collimater inner sleeve outside is connected with the inside thread of beam expander assembly III urceolus, is locked by small sleeve II;
The urceolus of described beam expander assembly III is to be made of the cylindrical tube at two ends and middle conic tube, and the cylindrical drum diameter ratio at its two ends is 1: 2,1: 5,1: 8 or 1: 10.
The set of lenses of collimator assembly II described in the technique scheme is the pancratic lens group that is made of the three-chip type structure collimater convex lens, collimater left side planoconvex spotlight, the right planoconvex spotlight of collimater, its lens diameter is greater than spot diameter, and focal length is by the distance adjustment between lens;
Or constitute the pancratic lens group of two-piece type structure by optical collimation lens group one left convex lens, optical collimation lens group one right convex lens;
Or constitute the pancratic lens group of two-piece type structure by optical collimation lens group two convex lens, optical collimation lens group two cemented doublets;
Or constitute the pancratic lens group of two-piece type structure by optical collimation lens group three left cemented doublets, optical collimation lens group three right cemented doublets;
Or constitute the pancratic lens group of three-chip type structure by optical collimation lens group four left cemented doublets, optical collimation lens group Siping City convex lens, optical collimation lens group four right cemented doublets;
Or constitute the pancratic lens group of three-chip type structure by optical collimation lens group five plano-concave lenss, optical collimation lens group five left meniscus lens, optical collimation lens group five right meniscus lens;
Or constitute the pancratic lens group of three-chip type structure by optical collimation lens group six left planoconvex spotlights, optical collimation lens group six right planoconvex spotlights, optical collimation lens group six cemented doublets.
Beam expander assembly described in the technique scheme is to be made of beam expander concavees lens and beam expander planoconvex spotlight, and distance can be in harmonious proportion replacing between the lens;
Or constitute by optical beam-expanding set of lenses one concavees lens and optical beam-expanding set of lenses one convex lens;
Or constitute by optical beam-expanding set of lenses two concavees lens and optical beam-expanding set of lenses two cemented doublets;
Or constitute by optical beam-expanding set of lenses three concavees lens, optical beam-expanding set of lenses three left convex lens and optical beam-expanding set of lenses three right convex lens.
Compared with prior art, the utility model advantage is: (1) angle of divergence is to 10-5mrad; (2) collimation lens set adjustable focal length is realized becoming and is doubly expanded bundle; (3) the optical lens group diameter is bigger than hot spot, and diffraction light is very weak; (4) adopt cylinder and conical sleeve structure, screw thread and bayonet socket connected mode, the one design that laser and set of lenses are concentric, arbitrary assembly is replaceable; (5) the design's cost is low, and practicality is easy to operate.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an optical lens group structural representation of the present utility model;
Fig. 3 is optical collimation lens group one structural representation of the present utility model;
Fig. 4 is optical collimation lens group two structural representations of the present utility model;
Fig. 5 is optical collimation lens group three structural representations of the present utility model;
Fig. 6 is optical collimation lens group four structural representations of the present utility model;
Fig. 7 is optical collimation lens group five structural representations of the present utility model;
Fig. 8 is optical collimation lens group six structural representations of the present utility model;
Fig. 9 is optical beam-expanding set of lenses one structural representation of the present utility model;
Figure 10 is optical beam-expanding set of lenses two structural representations of the present utility model;
Figure 11 is optical beam-expanding set of lenses three structural representations of the present utility model.
Among the figure: 1: draw-in groove behind the laser; 2: the laser socket of band lead; 3: semiconductor laser; 4: the laser front bayonet slot; 5: the laser outer sleeve; 6: the outer small sleeve of laser; 7: the collimater convex lens; 8: collimater left side planoconvex spotlight; 9: the right planoconvex spotlight of collimater; 10: the collimater inner sleeve; 11: the beam expander concavees lens; 12: the beam expander urceolus; 13: the beam expander planoconvex spotlight; 14: the beam expander small sleeve; 15: beam expander sidewall thread hole; 16: optical collimation lens group one left convex lens; 17: optical collimation lens group one right convex lens; 18: optical collimation lens group two convex lens; 19: optical collimation lens group two cemented doublets; 20: optical collimation lens group three left cemented doublets; 21: optical collimation lens group three right cemented doublets; 22: optical collimation lens group four left cemented doublets; 23: optical collimation lens group Siping City convex lens; 24: optical collimation lens group four right cemented doublets; 25: optical collimation lens group five plano-concave lenss; 26: optical collimation lens group five left meniscus lens; 27: optical collimation lens group five right meniscus lens; 28: optical collimation lens group six left planoconvex spotlights; 29: optical collimation lens group six right planoconvex spotlights; 30: optical collimation lens group six cemented doublets; 31: optical beam-expanding set of lenses one concavees lens; 32: optical beam-expanding set of lenses one convex lens; 33: optical beam-expanding set of lenses two concavees lens; 34: optical beam-expanding set of lenses two cemented doublets; 35: optical beam-expanding set of lenses three concavees lens; 36: optical beam-expanding set of lenses three left convex lens; 37: optical beam-expanding set of lenses three right convex lens.
Embodiment
Further describe embodiment of the present utility model below in conjunction with accompanying drawing.
As shown in Figure 1, the laser socket 2 of semiconductor laser 3 and band lead by laser outer sleeve 5 usefulness internal threads and laser after the external screw thread of draw-in groove 1 and laser front bayonet slot 4 connect and compose the Laser emission assembly;
The compound lens of collimater convex lens 7, collimater left side planoconvex spotlight 8, the right planoconvex spotlight 9 of collimater connects and composes laser aligner by collimater inner sleeve 10, it and Laser emission assembly are that the fixedly usefulness between laser outer sleeve 5 and the collimater inner sleeve 10 is threaded, outer small sleeve 6 lockings of laser, can regulate distance between them by screw thread;
For example, collimater convex lens 7 are selected the convex lens of aperture 9mm, focal length 10mm for use, collimater left side planoconvex spotlight 8 is selected the planoconvex spotlight of aperture 9mm, focal length 15mm for use, the right planoconvex spotlight 9 of collimater is selected the planoconvex spotlight of aperture 9mm, focal length 20mm for use, their spacing is 1mm, the effective focal length of its collimation lens set is 4.95mm, and numerical aperture is 0.67, the coupling efficiency height; The expander lens group that beam expander concavees lens 11, beam expander planoconvex spotlight 13 constitute connects and composes laser beam expander by beam expander urceolus 12, it and laser alignment assembly are that the fixedly usefulness between collimater inner sleeve 10 and the beam expander urceolus 12 is threaded, 14 lockings of beam expander small sleeve, can regulate distance between them by screw thread; All lens are locked by tapped small sleeve front and back, and can change the distance between the lens by the position of sleeve before and after changing; Laser is identical with the set of lenses axle center, set of lenses schematic diagram such as Fig. 2; Beam expander urceolus 12 has beam expander sidewall thread hole 15 so that fixing;
For example, beam expander concavees lens 11 are selected aperture 10mm, focal length-10mm concavees lens for use, and beam expander planoconvex spotlight 13 is selected the planoconvex spotlight of aperture 50mm, focal length 70mm for use, realize 5 times expansion bundle, 5 times of angle of divergence compressions.
Replace by the pancratic lens group that the one left convex lens 16 of optical collimation lens group among Fig. 3, optical collimation lens group one right convex lens 17 constitute the two-piece type structure with the embodiment 1 different pancratic lens groups of collimater convex lens 7, collimater left side planoconvex spotlight 8, the right planoconvex spotlight 9 of collimater that are;
For example, optical collimation lens group one left convex lens 16 are selected the convex lens of aperture 9mm, focal length 10mm for use, optical collimation lens group one right convex lens 17 are selected the planoconvex spotlight of aperture 9mm, focal length 15mm for use, their spacing is 3mm, the effective focal length of its optical collimation lens group one is 6.8mm, and numerical aperture is 0.55.
Replace by the pancratic lens group that two convex lens 18 of optical collimation lens group among Fig. 4, optical collimation lens group two cemented doublets 19 constitute the two-piece type structure with the embodiment 1 different pancratic lens groups of collimater convex lens 7, collimater left side planoconvex spotlight 8, the right planoconvex spotlight 9 of collimater that are.
Replace by the pancratic lens group that the three left cemented doublets 20 of optical collimation lens group among Fig. 5, optical collimation lens group three right cemented doublets 21 constitute the two-piece type structure with the embodiment 1 different pancratic lens groups of collimater convex lens 7, collimater left side planoconvex spotlight 8, the right planoconvex spotlight 9 of collimater that are.
Replace by the pancratic lens group that the four left cemented doublets 22 of optical collimation lens group among Fig. 6, optical collimation lens group Siping City convex lens 23, optical collimation lens group four right cemented doublets 24 constitute the three-chip type structure with the embodiment 1 different pancratic lens groups of collimater convex lens 7, collimater left side planoconvex spotlight 8, the right planoconvex spotlight 9 of collimater that are.
Replace by the pancratic lens group that five plano-concave lenss 25 of optical collimation lens group among Fig. 7, optical collimation lens group five left meniscus lens 26, optical collimation lens group five right meniscus lens 27 constitute the three-chip type structure with the embodiment 1 different pancratic lens groups of collimater convex lens 7, collimater left side planoconvex spotlight 8, the right planoconvex spotlight 9 of collimater that are.
Replace by the pancratic lens group that the six left planoconvex spotlights 28 of optical collimation lens group among Fig. 8, optical collimation lens group six right planoconvex spotlights 29, optical collimation lens group six cemented doublets 30 constitute the three-chip type structure with the embodiment 1 different pancratic lens groups of collimater convex lens 7, collimater left side planoconvex spotlight 8, the right planoconvex spotlight 9 of collimater that are.
Constituting set of lenses with the embodiment 1 different expander lens groups that are that beam expander concavees lens 11, beam expander planoconvex spotlight 13 constitute by one concavees lens 31 of optical beam-expanding set of lenses among Fig. 9 and optical beam-expanding set of lenses one convex lens 32 replaces.
Constituting set of lenses with the embodiment 1 different expander lens groups that are that beam expander concavees lens 11, beam expander planoconvex spotlight 13 constitute by two concavees lens 33 of optical beam-expanding set of lenses among Figure 10 and optical beam-expanding set of lenses two cemented doublets 34 replaces.
Constituting set of lenses with the embodiment 1 different expander lens groups that are that beam expander concavees lens 11, beam expander planoconvex spotlight 13 constitute by three concavees lens 35 of optical beam-expanding set of lenses among Figure 11, optical beam-expanding set of lenses three left convex lens 36 and optical beam-expanding set of lenses three right convex lens 37 replaces.
Constituting set of lenses with the embodiment 2 different expander lens groups that are that beam expander concavees lens 11, beam expander planoconvex spotlight 13 constitute by one concavees lens 31 of optical beam-expanding set of lenses among Fig. 9 and optical beam-expanding set of lenses one convex lens 32 replaces.
Constituting set of lenses with the embodiment 2 different expander lens groups that are that beam expander concavees lens 11, beam expander planoconvex spotlight 13 constitute by two concavees lens 33 of optical beam-expanding set of lenses among Figure 10 and optical beam-expanding set of lenses two cemented doublets 34 replaces.
Constituting set of lenses with the embodiment 2 different expander lens groups that are that beam expander concavees lens 11, beam expander planoconvex spotlight 13 constitute by three concavees lens 35 of optical beam-expanding set of lenses among Figure 11, optical beam-expanding set of lenses three left convex lens 36 and optical beam-expanding set of lenses three right convex lens 37 replaces.
Claims (3)
1. semiconductor laser alignment beam expander, comprise laser assembly, collimator assembly and beam expander assembly, it is adjustable to it is characterized in that being threaded between laser assembly I, collimator assembly II and the beam expander assembly III, is regulated and locking by small sleeve before and after each lens;
Described laser assembly I is a cylindrical tube, and wherein, the power supply of semiconductor laser (3) is connected on the slot (2), is fixedly clamped by front bayonet slot (1) and back draw-in groove (4); Front bayonet slot (1) and back draw-in groove (4) are threaded with laser outer sleeve (5); Laser outer sleeve (5) is inboard to be connected with collimator assembly II inner sleeve (10) outside screw, is locked by small sleeve I (6);
Described collimator assembly II is a cylindrical tube, and wherein, collimater inner sleeve (10) outside is connected with the inside thread of beam expander assembly III urceolus (12), is locked by small sleeve II (14);
The urceolus (12) of described beam expander assembly III is to be made of the cylindrical tube at two ends and middle conic tube, and the cylindrical drum diameter ratio at its two ends is 1: 2,1: 5,1: 8 or 1: 10.
2. semiconductor laser alignment beam expander as claimed in claim 1, the set of lenses that it is characterized in that the collimator assembly II is the pancratic lens group that is made of the three-chip type structure collimater convex lens (7), collimater left side planoconvex spotlight (8), the right planoconvex spotlight of collimater (9), its lens diameter is greater than spot diameter, and focal length is by the distance adjustment between lens;
Or constitute the pancratic lens group of two-piece type structure by optical collimation lens group one left convex lens (16), optical collimation lens group one right convex lens (17);
Or constitute the pancratic lens group of two-piece type structure by optical collimation lens group two convex lens (18), optical collimation lens group two cemented doublets (19);
Or constitute the pancratic lens group of two-piece type structure by optical collimation lens group three left cemented doublets (20), optical collimation lens group three right cemented doublets (21);
Or constitute the pancratic lens group of three-chip type structure by optical collimation lens group four left cemented doublets (22), optical collimation lens group Siping City convex lens (23), optical collimation lens group four right cemented doublets (24);
Or constitute the pancratic lens group of three-chip type structure by optical collimation lens group five plano-concave lenss (25), optical collimation lens group five left meniscus lens (26), optical collimation lens group five right meniscus lens (27);
Or constitute the pancratic lens group of three-chip type structure by optical collimation lens group six left planoconvex spotlights (28), optical collimation lens group six right planoconvex spotlights (29), optical collimation lens group six cemented doublets (30).
3. semiconductor laser alignment beam expander as claimed in claim 1 is characterized in that the beam expander assembly is to be made of beam expander concavees lens (11) and beam expander planoconvex spotlight (13), and distance can be in harmonious proportion replacing between the lens;
Or by optical beam-expanding set of lenses one concavees lens (31) and optical beam-expanding set of lenses one convex lens (32) formation;
Or by optical beam-expanding set of lenses two concavees lens (33) and optical beam-expanding set of lenses two cemented doublets (34) formation;
Or by optical beam-expanding set of lenses three concavees lens (35), optical beam-expanding set of lenses three left convex lens (36) and optical beam-expanding set of lenses three right convex lens (37) formation.
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| CN2010202028615U CN201758240U (en) | 2010-05-21 | 2010-05-21 | Semiconductor laser collimation beam expander |
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| CN2010202028615U CN201758240U (en) | 2010-05-21 | 2010-05-21 | Semiconductor laser collimation beam expander |
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| CN102789067A (en) * | 2011-05-18 | 2012-11-21 | 苏州生物医学工程技术研究所 | Beam collimating device of high-power semiconductor laser array |
| CN102928951A (en) * | 2012-11-09 | 2013-02-13 | 重庆理工大学 | Laser light source special for michelson interferometer |
| CN103176226A (en) * | 2012-11-03 | 2013-06-26 | 西安华科光电有限公司 | Dodging special-shaped lens used for shaping semiconductor laser leams, dodging laser source and optical system |
| CN103217766A (en) * | 2012-01-19 | 2013-07-24 | 昆山思拓机器有限公司 | Method adopting beam expanding lens to adjust laser beams to be coaxial |
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| CN103212791A (en) * | 2012-01-19 | 2013-07-24 | 昆山思拓机器有限公司 | Coaxial collimator for beam expander |
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| CN105033451A (en) * | 2015-09-07 | 2015-11-11 | 江苏大学 | Double spacing coordinated regulation laser expanding device |
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| CN102789067A (en) * | 2011-05-18 | 2012-11-21 | 苏州生物医学工程技术研究所 | Beam collimating device of high-power semiconductor laser array |
| CN103217766A (en) * | 2012-01-19 | 2013-07-24 | 昆山思拓机器有限公司 | Method adopting beam expanding lens to adjust laser beams to be coaxial |
| CN103217795A (en) * | 2012-01-19 | 2013-07-24 | 昆山思拓机器有限公司 | Beam expander |
| CN103212791A (en) * | 2012-01-19 | 2013-07-24 | 昆山思拓机器有限公司 | Coaxial collimator for beam expander |
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| CN104503088A (en) * | 2014-12-18 | 2015-04-08 | 北京首量科技有限公司 | Beam expander optical system for coherent illumination |
| WO2016094987A1 (en) * | 2014-12-19 | 2016-06-23 | Esteves Palmeira André Luiz | Electromagnetic and solar energy concentrator |
| CN105044916A (en) * | 2015-09-07 | 2015-11-11 | 江苏大学 | High-power laser beam expander lens system with automatic temperature compensation function |
| CN105033451B (en) * | 2015-09-07 | 2016-08-24 | 江苏大学 | Double pitch synergic adjustment laser beam expander |
| CN105033451A (en) * | 2015-09-07 | 2015-11-11 | 江苏大学 | Double spacing coordinated regulation laser expanding device |
| CN105929407A (en) * | 2016-04-24 | 2016-09-07 | 西南技术物理研究所 | Laser wind-finding radar optical antenna focal length self-adaptive adjustment method |
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| CN114488555A (en) * | 2022-03-31 | 2022-05-13 | 武汉锐科光纤激光技术股份有限公司 | Light beam collimation device, method, apparatus, storage medium and electronic apparatus |
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