CN2906663Y - Adjustable laser alignment tube device - Google Patents
Adjustable laser alignment tube device Download PDFInfo
- Publication number
- CN2906663Y CN2906663Y CN 200620055695 CN200620055695U CN2906663Y CN 2906663 Y CN2906663 Y CN 2906663Y CN 200620055695 CN200620055695 CN 200620055695 CN 200620055695 U CN200620055695 U CN 200620055695U CN 2906663 Y CN2906663 Y CN 2906663Y
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- lens
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- collimator
- laser
- eyeglass
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Abstract
The utility model relates to a zoom type laser collimator tube assembly comprising a first component and a second component. The first component is socket connected with the second component and can rotate relatively; the first component comprises an collimator tube, a semiconductor laser and collimating lens; the collimator tube is provided with an axially penetrative cavity; the semiconductor laser is fixedly positioned inside the cavity; the collimating lens comprises a lens of the collimating lens and a base of the collimating lens; the base of the collimating lens is thread positioned in the wall of the collimator tube cavity; the lens of the collimating lens is positioned in the base; the second component comprises a lens soleplate and converging lens; the converging lens soleplate is fixedly positioned and provided with an axially penetrative cavity; the converging lens is fixedly positioned inside the cavity and positioned at a side of the collimating lens emergent light. By rotating the end of the collimator tube, the collimating lens can move back and forth inside the cavity of the collimator tube, realizing the regulation of the relative location between lens of the collimating lens and the emitting surface of the semiconductor laser, providing the complete unit with a compact conformation and a more stableness.
Description
[technical field]
The utility model is about a kind of laser alignment pipe assembly.
[background technology]
When flow cytometry uses, need provide the parallel beam that meets design requirement by laser instrument.General laser instrument mainly is divided into solid state laser, gas laser and semiconductor laser, sometimes for the consideration of cost, energy consumption, volume and weight, needs to select semiconductor laser as light source.Comparatively speaking, the semiconductor laser volume is little, efficient is high, the life-span is long, carry with easy to use, and its cost is relatively also much lower.But the laser beam that semiconductor laser produces is light and parallel plane cavate cleavage plane because its P-N binds up one's hair also, and the laser beam of generation is not a Gaussian beam yet, and beam cross section is also also non-circular, and is approximately rectangle; It luminous simultaneously has longitudinal divergence angle (5 °～10 °) and lateral divergence angle (40 °～60 °) two angles of divergence, and the very big and directivity of the angle of divergence of its light beam is not very good.Should collimate again with collimation lens when therefore doing parallel light source, also just design corresponding collimator assembly, in order to needed LASER Light Source to be provided with semiconductor laser.This collimator assembly is made up of semiconductor laser, aspheric surface collimation lens and collimator, the laser emitting surface of semiconductor laser is placed on the object space focal plane of aspheric surface collimation lens, according to paraxial geometric optical theory, the laser beam of dispersing forms parallel beam through behind the non-spherical lens like this.
In the existing laser alignment pipe assembly, need the light beam of collimation lens outgoing to test to judge whether it be whether the beam diameter size of directional light and this parallel beam meets the demands, and this method of inspection generally has following two kinds:
Scheme one: see also Fig. 1, arrange properly (distance that on behalf of laser, arrow advance) after the light path, on one side trace regulate the position of collimation lens 80, observe the hot spot that laser forms on projection screen 83 through two reflective mirrors, 81 reflection backs on one side.When the hot spot on the projection screen 83 is converged to minimum state, can think that the laser of collimator output is approximately directional light.The principle of its utilization be exactly directional light the meeting focus point at infinity, just approximately when relative at a distance (for example 5～6 meters) laser focusing so think directional light.
Scheme two: because dispersing of directional light is very little, in a very long segment distance, the size variation of hot spot is very little, and therefore the size at different distance observation laser facula should be identical.See also Fig. 2, laser instrument 70 emitted laser project on the projection screen after collimating through collimation lens 71, different two positions in light path, with projection screen 72,73 intercepting hot spots, the size that compares two place's hot spots 74,75, when two hot spots, 74,75 big or small approximately equals, just can determine the approximate directional light of laser beam that laser instrument 70 emits.
When checking out light beam not parallel, then need this collimator assembly is regulated by above-mentioned dual mode.These regulative modes comprise two kinds: 1) utilize simple anchor clamps manual adjustments naked eyes Direct observation, but when regulating collimation lens, shake easily hand-held anchor clamps, be unfavorable for observing, and the light intensity of laser is general also much larger than the surround lighting of nature, and the eyesight that detects by an unaided eye for a long time to personnel also has harmful effect; In addition because the diameter of laser beam is very tiny, and the existence of diffraction and scattering causes the border of hot spot very fuzzy, directly with the naked eye observes and judgement can be had any problem; 2) the collimation lens eyeglass is fixed on one and regulates in the nut, and will reconcile the front end of spiro cap, rotate the position that this adjusting nut is regulated the collimation lens eyeglass with hand, but this kind regulative mode is very inconvenient, and adjusting stability is also relatively poor at collimator.
[utility model content]
The purpose of this utility model is to provide a kind of energy the stable and convenient laser alignment pipe assembly of regulating collimator lens position.
The purpose of this utility model is achieved in that this adjustable laser collimator device comprises first assembly and second assembly, this first assembly and second modular connector also can rotate to it, this first assembly comprises collimator, semiconductor laser and collimation lens, this collimator has the cavity that axially runs through, this semiconductor laser is fixedly arranged in this cavity, this collimation lens comprises collimation lens eyeglass and microscope base, the chamber wall threaded engagement of this microscope base and collimator cavity, this collimation lens eyeglass is installed in this microscope base, this second assembly comprises lens mount pad and convergent lens, this lens mount pad fixedly installs and has the cavity that axially runs through, and convergent lens is fixedly arranged in this cavity and is positioned at a side of collimation lens emergent light.
Described second assembly also comprises optical filter, and this optical filter is fixedly arranged in the cavity of lens mount pad, and is positioned at a side of convergent lens emergent light.
One side of described convergent lens emergent light also is provided with the CCD eyeglass, this CCD eyeglass is installed on the CCD eyeglass seat, this CCD eyeglass seat is installed on the slide block, and this slide block is installed on the guide rail by sliding pair, and also is provided with on this slide block and is used for slide block is locked at securing member on the guide rail.
The microscope base of described collimation lens is provided with groove near the position of lens mount pad, and this lens mount pad is provided with projection near the position of this microscope base, and this projection is inserted in this groove.
Compared with prior art, the utlity model has following advantage: the tail end by the rotation collimator can make collimation lens seesaw in the cavity of collimator, realize the adjusting of relative position between the collimation lens eyeglass and the semiconductor laser surface of emission, not only make whole apparatus structure compactness, and be convenient to the user and regulate, simultaneously because collimation lens and collimator are threaded engagement, so regulate reliable and stable.
[description of drawings]
Fig. 1 is the schematic diagram of first kind of existing laser alignment pipe regulative mode.
Fig. 2 is the schematic diagram of second kind of existing laser alignment pipe regulative mode.
Fig. 3 is the collimator of the utility model adjustable laser collimator device, the three-dimensional exploded view before the collimation lens assembling.
Fig. 4 is the sectional view of the utility model adjustable laser collimator device.
Fig. 5 is the assembly structure figure of the utility model adjustable laser collimator device.
Fig. 6 is an optical schematic diagram of the present utility model.
[embodiment]
See also Fig. 3 to Fig. 6, the utility model adjustable laser collimator device comprises first, second assembly of pegging graft and cooperating, and this first assembly can rotate relative to second assembly.This first assembly comprises collimator 1, semiconductor laser 2 and collimation lens 3, this collimator 1 is used to locate this semiconductor laser 2 and collimation lens 3, this semiconductor laser 2 is used to launch laser, and the laser beam collimation that this collimation lens 3 is used for dispersing is to form parallel beam.This collimator 1 middle part is provided with the cavity 11 that runs through along optical axis direction, and this semiconductor laser installing is in this cavity 11.This collimation lens 3 is made up of microscope base 31 and aspheric collimation lens eyeglass 32, these microscope base 31 middle parts are provided with the cavity 311 that runs through along optical axis direction, has screw thread 312 on the outer wall of this microscope base 31, the also corresponding screw thread 12 that is provided with in position that cooperates with this microscope base 32 on the chamber wall of collimator cavity 11, thereby realize the threaded engagement of this collimation lens 3 and this collimator 1, this collimation lens eyeglass 32 is embedded in this cavity 311.In addition, also be arranged with O-ring seal 14 on this collimation lens 3 to strengthen the sealing property of 1 of itself and collimator.
This second assembly comprises lens mount pad 4 and convergent lens 5.This lens mount pad 4 is used to install convergent lens 5, and this convergent lens 5 is used for the parallel beam of self-focus lens 3 outgoing is assembled.These lens mount pad 4 middle parts are penetrated with cavity 41 along optical axis direction, and this convergent lens 5 embeds in this cavity 41, and this convergent lens 5 is positioned at a side of these collimation lens 3 emergent lights.This second assembly also comprises the neutral colour filter 6 in the cavity 41 that embeds lens mount pad 4, and this optical filter 6 is positioned at a side of these convergent lens 5 emergent lights.The laser emitting surface 21 of this semiconductor laser 2, collimation lens eyeglass 32 and convergent lens 5 coaxial cables.In addition, in the microscope base 31 of this collimation lens 3 near the recessed groove 33 that is formed with of the front end of lens mount pads 4, protrude out near the tail end of these microscope bases 31 in this lens mount pad 4 and to be formed with projection 42, this projection 42 is inserted in this groove 33, thereby realize being connected of this collimation lens 3 and this lens mount pad 4, and pass through engagement limits collimator 1 the moving of this projection 42 and groove 33 in optical axis direction.
This adjustable laser collimator device also can comprise CCD eyeglass seat 8 and CCD eyeglass 7, this CCD eyeglass seat 8 is installed on the slide block 9, this slide block 9 is installed on the guide rail 10 by sliding pair and can moves along optical axis direction relative to this guide rail 10, and also is provided with on this slide block 9 and is used for this slide block 9 is locked at securing member 91 on the guide rail 10.This CCD eyeglass 7 is installed on this CCD eyeglass seat 8, and its photoelectricity target surface is positioned on the object space focal plane of convergent lens 5, and poly-lens 5 coaxial cables of the photoelectricity target surface participant of this CCD eyeglass 7.In the present embodiment, be not positioned on the object space focal plane of convergent lens 5, then can move along guide rail 10 and regulate by the slide block 9 that will be loaded with CCD eyeglass 7 as the photoelectricity target surface of CCD eyeglass 7.
When this adjustable laser collimator device is installed, lens mount pad 4 is fixed on the support 44 by back-up block 43, promptly this lens mount pad 4 is for fixedly installing, collimator 1 along optical axis direction insert this back-up block 43 and relatively this back-up block 43 rotate on optical axis and projection 42 grafting of the groove 33 of collimation lens 3 microscope bases 31 and lens mount pad 4.The rear end of slight rotation collimator 1, guiding by the screw thread 12 in microscope base on the collimation lens 3 31 and the collimator 1 chamber wall is flexible, collimation lens 3 can be slided front and back in this cavity 11, thereby regulate the relative position of collimation lens 3 phase noise spectra of semiconductor lasers laser 2 surface of emissions 21, be adjusted to up to laser emitting surface 21 till the object space focal plane of collimation lens 3 semiconductor laser.This convergent lens 5 is used for the parallel beam of collimator 1 output is assembled, and can determine that when the beam convergence of its output becomes minimum hot spot the laser of collimator 1 output is a branch of directional light, and then collimation adjustment is finished.The process whether affirmation is adjusted to design requirement is as follows: feed power supply opening semiconductor lasers 2 at first for semiconductor laser 2, the laser that semiconductor laser 2 begins to launch is the bigger astigmatism relatively in look angle of loosing, and assembles by quilt convergence behind the collimation lens; The optoelectronic induction target surface of CCD eyeglass 7 is on the object space focal plane of convergent lens 5, if a branch of directional light passes through convergent lens 5, then this light beam can converge on the optoelectronic induction target surface of CCD eyeglass 7, and this moment, the hot spot on the optoelectronic induction target surface was minimum.By image pick-up card with the optical signalling of the laser facula sensed through conversion and processes and displays to display screen, through the amplification of equal proportion, the observation on display screen is judged and is just compared clear and definite.By above-mentioned device, in the process of regulating collimator 1, just can change the accurate position of judging adjusting direction and adjusting by the hot spot of observing on the display screen.During practical operation, the collimator of trace rotation on one side 1 is observed the trend that hot spot changes on one side, the area of observing hot spot in adjustment process hour, just illustrate that laser focusing is on the optoelectronic induction target surface of CCD eyeglass 7, judge that according to the reversibility of light path the laser that sees through convergent lens is a branch of directional light, what that is to say collimator output is a branch of directional light, and the position of collimation lens is exactly the position of designing institute demand this moment.
The utility model adjustable laser alignment tube device has following advantage:
1. convenient: whole adjustment process is continuous, observes hot spot when regulating collimation lens continuously Size variation, when hot spot hour, be the collimation lens tram of design requirement;
2. reliable: hot spot is gathered optical signalling by CCD, and the processing by image pick-up card is showing again Show that upper amplification of screen shows, the variation of hot spot can be judged more accurately, also can pass through software simultaneously The numerical value that shows in real time the major and minor axis of hot spot;
3. high conformity: even if regulate the project organization of testing process or device error is arranged, its error also Be consistent, system, also be convenient to the conforming raising of follow-up calibration and product;
4. can aim at problem that straight tube assembly self exists observes, judges and confirm problem side To: because semiconductor laser and collimator are for the thickness at the position that cooperates the thick of 1mm of only having an appointment Degree so this semiconductor laser may depart from optical axis, because the focal length of collimation lens is very short, has The effect focal length is generally 6.2mm, and back focal length is 3.3mm, and a small amount of will bring very big differing from axle, By finding and the affirmation problem the graphical analysis of the laser facula on the CCD eyeglass, to find The method of dealing with problems, even change the collimator assembly.
5. when regulating, regulate the relative semiconductor of collimation lens by the tail end of rotation collimator and swash The position of light device laser emitting surface can make structure compacter like this, regulates conveniently, regulates Stability and efficient also can greatly improve.
6. by the setting of neutral colour filter, can be in the mode that does not change laser and energy distribution state Prerequisite under, laser beam is decayed, cause too by force the CCD eyeglass to avoid laser energy The induction of photoelectricity target surface is saturated, thereby can not correctly show the size of laser facula.
Claims (4)
1. adjustable laser collimator device, comprise first assembly, this first assembly comprises collimator, semiconductor laser and collimation lens, this collimator has the cavity that axially runs through, this semiconductor laser is fixedly arranged in this cavity, this collimation lens comprises collimation lens eyeglass and microscope base, this microscope base cooperates with the chamber wall of collimator cavity, this collimation lens eyeglass is installed in this microscope base, it is characterized in that: the chamber wall threaded engagement of this microscope base and collimator cavity, this first assembly and one second modular connector also can rotate to it, this second assembly comprises lens mount pad and convergent lens, this lens mount pad fixedly installs and has the cavity that axially runs through, and convergent lens is fixedly arranged in this cavity and is positioned at a side of collimation lens emergent light.
2. adjustable laser collimator device as claimed in claim 1 is characterized in that: described second assembly also comprises optical filter, and this optical filter is fixedly arranged in the cavity of lens mount pad, and is positioned at a side of convergent lens emergent light.
3. adjustable laser collimator device as claimed in claim 1, it is characterized in that: a side of described convergent lens emergent light also is provided with the CCD eyeglass, this CCD eyeglass is installed on the CCD eyeglass seat, this CCD eyeglass seat is installed on the slide block, this slide block is installed on the guide rail by sliding pair, and also is provided with on this slide block and is used for slide block is locked at securing member on the guide rail.
4. adjustable laser collimator device as claimed in claim 1 is characterized in that: the microscope base of described collimation lens is provided with groove near the position of lens mount pad, and this lens mount pad is provided with projection near the position of this microscope base, and this projection is inserted in this groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620055695 CN2906663Y (en) | 2006-02-27 | 2006-02-27 | Adjustable laser alignment tube device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620055695 CN2906663Y (en) | 2006-02-27 | 2006-02-27 | Adjustable laser alignment tube device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2906663Y true CN2906663Y (en) | 2007-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620055695 Expired - Fee Related CN2906663Y (en) | 2006-02-27 | 2006-02-27 | Adjustable laser alignment tube device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2906663Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103064189A (en) * | 2012-12-14 | 2013-04-24 | 青岛镭创光电技术有限公司 | Laser device beam expander adjusting device and laser device beam expander adjusting method |
| CN103278908A (en) * | 2013-06-21 | 2013-09-04 | 嘉善加斯戴克医疗器械有限公司 | Laser beam adjusting device through hand wheel |
| CN104600558A (en) * | 2015-02-09 | 2015-05-06 | 周玉萍 | Wireless laser device |
| CN107991789A (en) * | 2018-01-03 | 2018-05-04 | 重庆镭典科技有限公司 | A kind of semiconductor laser alignment device |
| CN108346962A (en) * | 2018-05-15 | 2018-07-31 | 中国科学院合肥物质科学研究院 | A kind of laser optical eyeglass adjustment holder |
| CN108344375A (en) * | 2018-02-27 | 2018-07-31 | 广东欧珀移动通信有限公司 | Laser projection module, depth camera and electronic device |
| CN109316238A (en) * | 2017-08-01 | 2019-02-12 | 上海优医基医疗器械有限公司 | Medical positioning indicating module |
| WO2019076162A1 (en) * | 2017-10-17 | 2019-04-25 | 歌尔股份有限公司 | Assembly method for optical module and device |
| CN109715041A (en) * | 2016-10-25 | 2019-05-03 | 深圳迈瑞生物医疗电子股份有限公司 | Medical light source device |
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2006
- 2006-02-27 CN CN 200620055695 patent/CN2906663Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103064189A (en) * | 2012-12-14 | 2013-04-24 | 青岛镭创光电技术有限公司 | Laser device beam expander adjusting device and laser device beam expander adjusting method |
| CN103064189B (en) * | 2012-12-14 | 2017-12-26 | 青岛镭创光电技术有限公司 | The method of adjustment of laser beam expanding lens adjusting apparatus and laser beam expanding lens |
| CN103278908A (en) * | 2013-06-21 | 2013-09-04 | 嘉善加斯戴克医疗器械有限公司 | Laser beam adjusting device through hand wheel |
| CN104600558A (en) * | 2015-02-09 | 2015-05-06 | 周玉萍 | Wireless laser device |
| CN109715041A (en) * | 2016-10-25 | 2019-05-03 | 深圳迈瑞生物医疗电子股份有限公司 | Medical light source device |
| CN109316238A (en) * | 2017-08-01 | 2019-02-12 | 上海优医基医疗器械有限公司 | Medical positioning indicating module |
| WO2019076162A1 (en) * | 2017-10-17 | 2019-04-25 | 歌尔股份有限公司 | Assembly method for optical module and device |
| US11415410B2 (en) | 2017-10-17 | 2022-08-16 | Goertek Inc. | Method and apparatus of optical module assembly |
| CN107991789A (en) * | 2018-01-03 | 2018-05-04 | 重庆镭典科技有限公司 | A kind of semiconductor laser alignment device |
| CN108344375A (en) * | 2018-02-27 | 2018-07-31 | 广东欧珀移动通信有限公司 | Laser projection module, depth camera and electronic device |
| CN108346962A (en) * | 2018-05-15 | 2018-07-31 | 中国科学院合肥物质科学研究院 | A kind of laser optical eyeglass adjustment holder |
| CN108346962B (en) * | 2018-05-15 | 2023-10-31 | 中国科学院合肥物质科学研究院 | Laser optical lens adjusting bracket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070530 Termination date: 20150227 |
|
| EXPY | Termination of patent right or utility model |