CN201607563U

CN201607563U - Co-centric axis regulation structure of laser module

Info

Publication number: CN201607563U
Application number: CN2010201053874U
Authority: CN
Inventors: 黄显荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-01-28
Filing date: 2010-01-28
Publication date: 2010-10-13
Anticipated expiration: 2020-01-28

Abstract

The utility model provides a co-centric axis regulation structure of a laser module, which includes a laser module and an eccentric sleeve, wherein the laser module is provided with a fixing seat; an optical module, a laser diode and a circuit board for the welding of the laser diode are accommodated inside the fixing seat; the eccentric sleeve is movably sleeved outside the laser module; through the rotation of the eccentric sleeve, a guiding inclined surface on the inner wall surface of the eccentric sleeve can be propped against the fixing seat in a sliding manner to realize a relative rotation, and then the laser module can be actuated to conduct the micro-regulation positioning with 360-degree displacement amount; and when the deflection angles of the optical axis of the laser module and the mechanical axis of the eccentric shaft sleeve are adjusted to be on the same axis, the packing and the fixation with adhesive are conducted, the high-level laser module realizing the concentricity of the optical axis of laser and the mechanical axis can be formed, the integral structure is simple, and the assembly, the adjustment and the counterpoint are relatively easy.

Description

The concentric shaft adjusting structure of laser module

Technical field

The utility model provides a kind of concentric shaft adjusting structure of laser module, especially refer to that rotatable excentric sleeve rotation is held in the holder outside, and the interlock laser module is done 360 degree displacement fine setting location, the optical axis of laser light and excentric sleeve can be adjusted be positioned on the same axle center, it is simple in structure and assemble, adjust in the contraposition all quite simple and easy.

Background technology

The laser module of visible light (as ruddiness or green glow) is for applying to the teaching indication in a large number now, the aiming apparatus, use on level meter and the Laser Line Marker purposes such as (Line Laser Marker), yet prolong used many year after, only have only the manufacturer of minority to do an improvement at the quality on its emitted laser spot and the laser lines, and because of its finished-product volume less, so that be difficult for adjusting in same axle center between laser diode and optical mirror slip group, so the finished product optical spot quality that produces is very different, and then the laser spot that causes its ejaculation is incomplete or present irregular, and optical axis and mechanical axis decentraction, and require on the market to be tending towards harsh especially, make the effect of consumer when using not clear (especially with even more serious at a distance), thereby cause its whole surcharge to reduce.

Yet, along with optical technology day is more progressive, many surveying instruments (as level meter) or location purposes (producing instrument as the laser lines) etc. need use green glow and manifest, wherein each spare part of green laser inside modules is mainly external member via some copper or aluminium and it is assembled becomes one, but because of it constitutes suitable many and more complicated of spare part, when therefore conduct is assembled into a green laser module, the concentricity of its optical axis and mechanical axis is to be not easy to reach and have bigger off-centre, and also is difficult for assembling on producing.

Because early stage red laser modular structure is simple, this case applicant once developed this kind " the concentric shaft adjusting structure of laser diode " novel patent case and announced on record, see also Fig. 7, shown in 8, it is placed in eyeglass C among the eyeglass cover B, the external thread B1 that again eyeglass is overlapped on the B is screwed in the internal thread A1 place in sleeve A left side, in addition to insert the circuit board F that welds laser diode E in the laser diode fixed cover D, continue laser diode fixed cover D then is screwed in the internal thread A1 on sleeve A right side, have a gap because of generation between the internal thread A1 of the external thread D2 of laser diode fixed cover D and sleeve A this moment, so can be by the quartern screw A2 that is offered on the sleeve A, be screwed in each screw A2 with four screw A3, and support D1 position, blocking part to the laser diode fixed cover D, again by X, two groups of screw A3 on the Y-axis adjust the central shaft deviation angle of laser diode fixed cover D, online to guarantee laser diode E and eyeglass C center at same axle, utilize adhesive to fix again, when making the laser module production and assembly, can adjust the focal length of laser diode E and eyeglass C easily, to form the concentric shaft adjusting structure of a laser module.

Yet can learn by above-mentioned, existing laser module tool X on sleeve A, be screwed into four screw A3 in two groups of screw A2 of Y-axis, and utilize the screw A3 among the arbitrary group of screw A3 to locate, another screw A3 is then urged, then make laser diode fixed cover D can do trickle up and down or the concentric shafts adjustment of left and right displacement, but this sleeve A volume is less, and make screw A2 on the sleeve A in the machining processing procedure, be easy to produce defective, and damage or reduction sleeve A structural strength, so sleeve A must have certain wall thickness, just be enough to strengthen screw A2 overall construction intensity, cause its tube wall thickening, overall dimensions become the design requirement that does not meet the finished product miniaturization greatly and relatively.

The utility model content

The creator is because above-mentioned problem and shortcoming, is collect related data via assessing in many ways and consider, and utilizes the research and development experience for many years of engaging in the industry constantly to study and revise, and the beginning is designed the novel birth of concentric shaft adjusting structure of this kind laser module.In order to solve above-mentioned prior art problems, the purpose of this utility model provides a kind of concentric shaft adjusting structure of laser module.

For reaching described purpose, the utility model proposes a kind of concentric shaft adjusting structure of laser module, especially the concentric shaft adjusting structure that refers to adjustable laser module optical axis and holder mechanical axis deviation angle, include laser module and excentric sleeve, wherein: this laser module is for having a hollow holders, and contain optical module in holder inside, laser diode and can establish for the laser diode weldering and form the circuit board that electrically connects; This excentric sleeve be pivot bush unit in the laser module outside, and excentric sleeve internal face place is formed with slidably to be held in and is counterrotating guiding incline on the holder, does the fine settings location of 360 degree displacements in order to the interlock laser module.

Wherein, the holder inside of this laser module contains photovoltaic diode, and is located at formation electric connection on the circuit board with a plurality of pin welderings of photovoltaic diode institute tool.

Wherein, the optical module of this laser module is for including focus lamp, crystal group, spectroscope, biconcave lens and lens.

Wherein, the holder one side opening place of this laser module is provided with to form the projection hole that aligns with optical module.

Wherein, be provided be spirally connected mutually fixing external thread, internal thread between the holder of this laser module institute tool and excentric sleeve.

The beneficial effects of the utility model:

The utility model can slide with the guiding incline at inner wall surface thereof place by the eccentric rotation axis cover and be held in the holder outside and be a rotation relatively, and the interlock laser module is done 360 degree displacement fine setting location, the optical axis of its laser module and the mechanical axis deviation angle adjustment of excentric sleeve are positioned to same axle center, giving packing again fixes or utilizes adhesive to fix, thereby revise its off-centre, the disalignment problem, optical axis with the correcting laser light serves as correct coaxial high-level green laser module with mechanical axis, can solve simultaneously coping screw and adjust the tube wall thickening that mode is derived, problems such as the overall dimensions change is big, the design requirement that can meet the finished product miniaturization thus, one-piece construction is simply assembled, adjust in the contraposition all quite simple and easy.

Can further be provided be spirally connected mutually fixing external thread, internal thread between the holder of laser module of the present utility model institute tool and excentric sleeve, more stable, certain and degree of accuracy is high when making the excentric sleeve rotation be held on the holder; In addition, after finishing, laser module and excentric sleeve assembling can further be arranged at the inside pipe casing of pedestal institute tool, organizing formation laser pointer device with this uses, or excentric sleeve the place ahead inside pipe casing is further combined with being positioned with cylindrical mirror, then make the emitted laser beam of laser diode line the desired position, produce on the purposes of instrument and use and can be applicable to level meter or laser lines by cylindrical mirror.

Description of drawings

Fig. 1 is a stereo appearance figure of the present utility model.

Fig. 2 is a three-dimensional exploded view of the present utility model.

Fig. 3 adjusts preceding side cutaway view for the utility model.

Fig. 4 is the adjusted side cutaway view of the utility model.

Fig. 5 is the side cutaway view of the utility model preferred embodiment.

Fig. 6 is the side view of another preferred embodiment of the utility model.

Fig. 7 is the three-dimensional exploded view of existing laser module.

Fig. 8 is the side cutaway view of existing laser module.

[main element symbol description]

1 laser module

11 holders, 124 biconcave lenss

111 projection holes, 125 lens

12 optical modules, 13 laser diodes

121 focus lamps, 14 photovoltaic diodes

122 crystal groups, 15 circuit boards

123 spectroscopes, 16 external threads

2 excentric sleeves

21 guiding inclines, 22 internal threads

3 pedestals

31 sleeve pipes

The A sleeve pipe

A1 internal thread A3 screw

The A2 screw

B eyeglass cover

The B1 external thread

The C eyeglass

The D laser diode is fixed

D1 blocking part D2 external thread

The E laser diode

The F circuit board

Embodiment

For reaching above-mentioned purpose and structure, technological means that the utility model adopted and effect thereof, drawing now illustrates in detail that with regard to preferred embodiment of the present utility model its step and function are as follows, in order to understanding fully.

See also shown in Fig. 1,2,3,4, be respectively stereo appearance figure of the present utility model, three-dimensional exploded view, preceding side cutaway view and the adjusted side cutaway view of adjustment, find out that by knowing among the figure the utility model is for including laser module 1 and excentric sleeve 2, wherein:

This laser module 1 is for having hollow holders 11, and contain optical module 12, laser diode 13, photovoltaic diode 14 in holder 11 inside and can supply laser diode 13, photovoltaic diode 14 welderings to establish and form the circuit board 15 that electrically connects, and holder 11 1 side opening places then are provided with and can form the projection hole 111 that aligns with optical module 12; And laser diode 13 wavelength coverage preferred embodiment can be between 800～820nm, and this optical module 12 is for including focus lamp 121, crystal group 122, spectroscope 123, biconcave lens 124 and lens 125, the laser that is projected when laser diode 13 produces wavelength 520～540nm green glow by optical module 12, and in the process of laser modulation, feed back for can part light being projected to photovoltaic diode 14 by spectroscope 124, make control circuit on the circuit board 15 can control the output size of laser diode 13 laser according to feedback signal, but how relevant laser diode 13 laser produce green glow (532nm) because of non-the utility model emphasis place by optical module 12, so only doing one in this manual underdraws, for understanding.

This excentric sleeve 2 is made by metal materials such as copper or aluminium, and pivot bush unit is in the outside fine setting of laser module 1 location, and excentric sleeve 2 hollow wall face places are formed with and can be a counterrotating guiding incline 21 on the holder 11 for sliding be held in.

When the utility model in when assembling, with the assembling in advance of spare parts such as optical module 12, laser diode 13 and photovoltaic diode 14, finish green laser module 1 with the group structure, again with excentric sleeve 2 pivot bush units on the holder 11 of laser module 1, the optical axis that makes laser module 1 when rotation is with the mechanical axis of excentric sleeve 2 when coaxial, fixed, just finished the assembling of the utility model integral body.

Because the above-mentioned laser module 1 inner member of forming is quite a lot of, make its laser diode 13 be difficult for reaching by optical axis and the holder 11 mechanical axis concentricitys that optical module 12 penetrates, and because of the many and volume that each spare part of laser module 1 is suitable less, so that the location of position is wayward in the assembling process, just can produce the minor shifts amount that adds up, cause optical module 12 itself and laser diode 13 centers also can't guarantee on same axle center and form light shaft offset angle [alpha] (as shown in Figure 3), and when using, just can overlap 2 guiding inclines 21 with the inner wall surface thereof place by eccentric rotation axis serves as to slide to be held in to be a rotation relatively on the holder 11, and interlock laser module 1 is done the fine setting location of 360 degree displacements, and when the optical axis of laser module 1 is positioned on the same axle center for the mechanical axis deviation angle α with excentric sleeve 2 is adjusted to, can give packing fixes, or utilize general adhesive (as instant glue, seccotine or resin etc.) be attached to holder 11 and fixed with excentric sleeve 2 bonding stations, thereby revise its off-centre, the out-of-alignment problem, optical axis with the correcting laser light serves as correct coaxial high-level green laser module with mechanical axis, can effectively solve simultaneously coping screw adjusts mode and derives and have relevant tube wall to thicken, problems such as the overall dimensions change is big, the design requirement that can meet the finished product miniaturization thus, and one-piece construction is simple, member is few, no matter be in assembling, adjust in the contraposition all quite simple and easy, and can save material, cost in the manufacturing can realize fully that also laser diode 13 is more complete by the emitted laser spot shape of optical module 12.

In addition, the above only is preferred embodiment of the present utility model, non-so limit to claim of the present utility model, 2 of the holder 11 of 1 tool of the utility model laser module and excentric sleeves also can further be provided with the fixing external thread 16 that is spirally connected mutually, internal thread 22 (as shown in Figure 5), and make excentric sleeve 2 more stable, certain and degree of accuracy is high when being one on holder 11 rotation supports relatively; In addition, laser module 1 is with also visual user's demand after excentric sleeve 2 assemblings are finished or design different sleeve pipe 31 inside (as shown in Figure 6) that further are arranged at 3 tools of pedestal, organizes with this to constitute the use of laser pointer device; Moreover, one specific embodiment of the utility model laser module the best can be the green laser module, but when practical application, be not as limitation with this, when also can be the red laser module application and on level meter or Laser Line Marker purposes such as (Line Laser Marker), using, before excentric sleeve 2 in the square casing 31 further combined with being positioned with the cylindrical mirror (not shown), it only need provide laser diode 13 emitted laser beam, can line to use on the desired position by cylindrical mirror and get final product, so every form of reaching aforementioned effect is contained by the utility model all should, simple and easy modification of this kind and equivalent structure change, all should in like manner be contained in the claim of the present utility model, close and give Chen Ming.

In sum, the concentric shaft adjusting structure of the laser module that the utility model is above-mentioned for reaching its effect and purpose really, so the utility model really is the creation of a practicality excellence, meets the application requirement of utility model patent in fact, files an application in accordance with the law.

Claims

1. the concentric shaft adjusting structure of a laser module refers to it is characterized in that the concentric shaft adjusting structure of adjustable laser module optical axis and holder mechanical axis deviation angle especially, includes laser module and excentric sleeve, wherein:

This laser module is for having a hollow holders, and contain optical module in holder inside, laser diode and can establish for the laser diode weldering and form the circuit board that electrically connects;

This excentric sleeve be pivot bush unit in the laser module outside, and excentric sleeve internal face place is formed with slidably to be held in and is counterrotating guiding incline on the holder, does the fine settings location of 360 degree displacements in order to the interlock laser module.

2. the concentric shaft adjusting structure of laser module as claimed in claim 1 is characterized in that, the holder inside of this laser module contains photovoltaic diode, and is located at formation electric connection on the circuit board with a plurality of pin welderings of photovoltaic diode institute tool.

3. the concentric shaft adjusting structure of laser module as claimed in claim 1 is characterized in that, the optical module of this laser module is for including focus lamp, crystal group, spectroscope, biconcave lens and lens.

4. the concentric shaft adjusting structure of laser module as claimed in claim 1 is characterized in that, the holder one side opening place of this laser module is provided with to form the projection hole that aligns with optical module.

5. the concentric shaft adjusting structure of laser module as claimed in claim 1 is characterized in that, is provided be spirally connected mutually fixing external thread, internal thread between the holder of this laser module institute tool and excentric sleeve.