CN103212791A - Coaxial collimator for beam expander - Google Patents
Coaxial collimator for beam expander Download PDFInfo
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- CN103212791A CN103212791A CN2012100158073A CN201210015807A CN103212791A CN 103212791 A CN103212791 A CN 103212791A CN 2012100158073 A CN2012100158073 A CN 2012100158073A CN 201210015807 A CN201210015807 A CN 201210015807A CN 103212791 A CN103212791 A CN 103212791A
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- coaxial
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- beam expanding
- laser
- expanding lens
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Abstract
The invention relates to a coaxial collimator for a beam expander, and mainly solves the technical problems that when the beam expander is installed, laser beams do not easily meet the optical coaxial requirements in the prior art. The coaxial collimator for the beam expander comprises a cylindrical barrel, wherein one end of the barrel is provided with a light entrance port, and the other end of the barrel is provided with a light exit port; one end of the barrel with the light entrance port is connected with the optical fiber head of a laser, and one end of the barrel with the light exit port is provided with threads; the barrel is matched with the incident end of the beam expander through the threads, and the light entrance port and the light exit port are respectively provided with a photoresistor; and the center of each photoresistor is provided with a round hole through which the laser beams pass. The technical scheme better solves the problems, and can be used in the industrial production of a tooling fixture for allowing a collimating beam expander and the laser beams to be coaxial in laser processing equipment.
Description
Technical field
The present invention relates to the tool fixture of collimator and extender mirror and laser beams coaxial in a kind of tool fixture that is used for collimator and extender mirror and laser beams coaxial, particularly laser process equipment.
Background technology
After the laser process equipment assembling is finished, need adjust light path, the principle of adjustment is to want each device in the light path to reach necessarily required optics axiality.Beam expanding lens is as the additional device in the light path, play the effect that increases beam diameter, if but its axis and laser beam misalignment of axe cross conference and cause through expanding laser beam energy behind the bundle along the axle center skewness, as Fig. 1, so will be to influencing the cut quality of laser.It is whether visual laser beam passes through along beam expanding lens light inlet center that beam expanding lens was installed in the past, and error is very big, needs to install repeatedly to adjust, and is not easy to reach the coaxial requirement of optics.The present invention is the coaxial collimater of a kind of beam expanding lens, this part is installed in be easy on the beam expanding lens adjust to beam expanding lens and laser beam coaxial.
Summary of the invention
One of technical problem to be solved by this invention is that the installation beam expanding lens that exists in the prior art is whether visual laser beam passes through along beam expanding lens light inlet center, error is very big, need to install repeatedly to adjust, be not easy to reach the coaxial technical problem of optics, provide a kind of new beam expanding lens coaxial collimater, the coaxial collimater of this beam expanding lens has easily adjusts to coaxial advantage with beam expanding lens and laser beam.
Two of technical problem to be solved by this invention provides a kind of beam expanding lens with the coaxial collimater that one of solves the problems of the technologies described above.
Two the beam expanding lens that three of technical problem to be solved by this invention provides that a kind of employing solves the problems of the technologies described above is adjusted the coaxial method of laser beam.
For one of solving the problems of the technologies described above, the technical solution used in the present invention is as follows: the coaxial collimater of a kind of beam expanding lens, comprise cylindrical lens barrel, lens barrel one end has light inlet, and the other end has light-emitting window, and the end that lens barrel has light inlet links to each other with the laser fiber head, end with light-emitting window has screw thread, lens barrel cooperates by described screw thread and beam expanding lens incident end, and light inlet and light-emitting window have photo resistance respectively, and the photo resistance center has the circular hole that laser beam passes through.
In the technique scheme, described Circularhole diameter is bigger 1～50 micron than the laser beam diameter that passes through.When laser is penetrated in photo resistance, the photo resistance meeting produces signal.
For solve the problems of the technologies described above two, the technical solution used in the present invention is as follows: a kind of beam expanding lens comprises the described coaxial collimater of cylindrical lens barrel and claim 1.This collimater comprises cylindrical lens barrel, lens barrel one end has light inlet, the other end has light-emitting window, the end that lens barrel has light inlet links to each other with the laser fiber head, end with light-emitting window has screw thread, lens barrel cooperates by described screw thread and beam expanding lens incident end, and light inlet and light-emitting window have photo resistance respectively, and the photo resistance center has the circular hole that laser beam passes through.
For solve the problems of the technologies described above three, the technical solution used in the present invention is as follows: a kind of control method of coaxial laser light beam, beam expanding lens is installed in the optical system, with the coaxial collimater of beam expanding lens and beam expanding lens by being threaded togather, regulate sub-assembly, make laser beam pass through two apertures of the coaxial collimater of beam expanding lens, if sub-assembly has or is parallel to optical axis skew is arranged, light all can some drop in the photo resistance, photo resistance will produce signal, all do not have photoreceptor signal when feedback when being adjusted to two photo resistance, beam expanding lens just and laser beam reached the optics axiality.
The present invention has the following advantages: the coaxial collimater of beam expanding lens is the device of and frock and feedback information and one, one end is the screwed hole that cooperates with beam expanding lens incident end, there are two centers to have photo resistance at the near-end of distance beam expanding lens light inlet and far-end than the aperture of the big 0.05mm of laser beam diameter, a clamping turning of device forms, and has guaranteed that the axiality of screwed hole and aperture has guaranteed that promptly collimater and beam expanding lens are coaxial.In the time of will being installed in beam expanding lens in the optical system in the light modulation process, with the coaxial collimater of beam expanding lens and beam expanding lens by being threaded togather, regulating sub-assembly makes laser beam pass through two apertures of the coaxial collimater of beam expanding lens, if sub-assembly tilts or is parallel to optical axis skew is arranged, light all can some drop in the photo resistance, photo resistance will produce signal so, does not all have photoreceptor signal when feedback when being adjusted to two photo resistance, and beam expanding lens has just reached the requirement of optics axiality.
Adopt method of the present invention, solved in the past beam expanding lens in the optical system of packing into, axiality is difficult to regulate the problem that the precision of adjusting is difficult to guarantee.And easy to operate, be easy to control, obtained better technical effect.
Description of drawings
Fig. 1 is beam expanding lens laser energy distribution schematic diagram when not coaxial.
Fig. 2 is the coaxial collimation cap of a beam expanding lens schematic diagram.
Fig. 3 is the laser energy distribution schematic diagram when the coaxial collimater of beam expanding lens is installed.
Among Fig. 1,1 is laser fiber bar head; 2 is laser beam; 3 is condenser lens; 4 are the laser energy distribution.
Among Fig. 2,1 is photo resistance; 2 is lens barrel; 3 is helicitic texture; 4 is circular hole.
Among Fig. 3,1 is laser fiber bar head; 2 are photo resistance; 3 is lens barrel; 4 is laser beam; 5 is condenser lens; 6 are the laser energy distribution.
The invention will be further elaborated below by specific embodiment, but be not limited only to present embodiment.
Specific embodiment
[embodiment 1]
The coaxial collimater of a kind of beam expanding lens, comprise cylindrical lens barrel, lens barrel one end has light inlet, the other end has light-emitting window, the end that lens barrel has light inlet links to each other with the laser fiber head, and the end with light-emitting window has screw thread, and lens barrel cooperates by described screw thread and beam expanding lens incident end, light inlet and light-emitting window have photo resistance respectively, and the photo resistance center has the circular hole that laser beam passes through.
[embodiment 2]
The coaxial collimater of a kind of beam expanding lens, comprise cylindrical lens barrel, lens barrel one end has light inlet, the other end has light-emitting window, the end that lens barrel has light inlet links to each other with the laser fiber head, and the end with light-emitting window has screw thread, and lens barrel cooperates by described screw thread and beam expanding lens incident end, light inlet and light-emitting window have photo resistance respectively, and the photo resistance center has the circular hole that laser beam passes through.Described Circularhole diameter is bigger 5 microns than the laser beam diameter that passes through.As shown in Figure 2.
[embodiment 3]
The coaxial collimater of a kind of beam expanding lens, comprise cylindrical lens barrel, lens barrel one end has light inlet, the other end has light-emitting window, the end that lens barrel has light inlet links to each other with the laser fiber head, and the end with light-emitting window has screw thread, and lens barrel cooperates by described screw thread and beam expanding lens incident end, light inlet and light-emitting window have photo resistance respectively, and the photo resistance center has the circular hole that laser beam passes through.Described Circularhole diameter is bigger 50 microns than the laser beam diameter that passes through.
[embodiment 4]
The coaxial collimater of a kind of beam expanding lens, comprise cylindrical lens barrel, lens barrel one end has light inlet, the other end has light-emitting window, the end that lens barrel has light inlet links to each other with the laser fiber head, and the end with light-emitting window has screw thread, and lens barrel cooperates by described screw thread and beam expanding lens incident end, light inlet and light-emitting window have photo resistance respectively, and the photo resistance center has the circular hole that laser beam passes through.Described Circularhole diameter is bigger 10 microns than the laser beam diameter that passes through.A part drops in the photo resistance, and photo resistance will produce signal so.
[embodiment 5]
A kind of beam expanding lens, comprise cylindrical lens barrel and coaxial collimater, described coaxial collimater comprises cylindrical lens barrel, and lens barrel one end has light inlet, the other end has light-emitting window, the end that lens barrel has light inlet links to each other with the laser fiber head, and the end with light-emitting window has screw thread, and lens barrel cooperates by described screw thread and beam expanding lens incident end, light inlet and light-emitting window have photo resistance respectively, and the photo resistance center has the circular hole that laser beam passes through.Described Circularhole diameter is bigger 20 microns than the laser beam diameter that passes through.A part drops in the photo resistance, and photo resistance will produce signal so.
[embodiment 6]
A kind of control method of coaxial laser light beam, beam expanding lens is installed in the optical system, with the coaxial collimater of beam expanding lens and beam expanding lens by being threaded togather, regulate sub-assembly, make laser beam pass through two apertures of the coaxial collimater of beam expanding lens, if sub-assembly has or is parallel to optical axis skew is arranged, light all can some drop in the photo resistance, photo resistance will produce signal, all do not have photoreceptor signal when feedback when being adjusted to two photo resistance, beam expanding lens just and laser beam reached the optics axiality.
Described beam expanding lens, comprise cylindrical lens barrel and coaxial collimater, described coaxial collimater comprises cylindrical lens barrel, and lens barrel one end has light inlet, the other end has light-emitting window, the end that lens barrel has light inlet links to each other with the laser fiber head, and the end with light-emitting window has screw thread, and lens barrel cooperates by described screw thread and beam expanding lens incident end, light inlet and light-emitting window have photo resistance respectively, and the photo resistance center has the circular hole that laser beam passes through.Described Circularhole diameter is bigger 20 microns than the laser beam diameter that passes through.A part drops in the photo resistance, and photo resistance will produce signal so.
[embodiment 7]
The coaxial collimater of beam expanding lens is the device of and frock and feedback information and one, one end is the screwed hole that cooperates with beam expanding lens incident end, there are two centers to have photo resistance at the near-end of distance beam expanding lens light inlet and far-end than the aperture of the big 0.05mm of laser beam diameter, a clamping turning of device forms, and has guaranteed that the axiality of screwed hole and aperture has guaranteed that promptly collimater and beam expanding lens are coaxial.In the time of will being installed in beam expanding lens in the optical system in the light modulation process, with the coaxial collimater of beam expanding lens and beam expanding lens by being threaded togather, regulating sub-assembly makes laser beam pass through two apertures of the coaxial collimater of beam expanding lens, if sub-assembly has or is parallel to optical axis skew is arranged, light all can some drop in the photo resistance, photo resistance will produce signal so, all there be not photoreceptor signal when feedback when being adjusted to two photo resistance, beam expanding lens has just reached the requirement of optics axiality, as shown in Figure 3.
Beam expanding lens of the present invention had solved in the past beam expanding lens in the optical system of packing into, and axiality is difficult to regulate the problem that the precision of adjusting is difficult to guarantee.
Claims (3)
1. coaxial collimater of beam expanding lens, comprise cylindrical lens barrel, lens barrel one end has light inlet, the other end has light-emitting window, the end that lens barrel has light inlet links to each other with the laser fiber head, and the end with light-emitting window has screw thread, and lens barrel cooperates by described screw thread and beam expanding lens incident end, light inlet and light-emitting window have photo resistance respectively, and the photo resistance center has the circular hole that laser beam passes through.
2. the coaxial collimater of beam expanding lens according to claim 1, it is bigger 1～50 micron than the laser beam diameter that passes through to it is characterized in that described Circularhole diameter.
3. the coaxial collimater of beam expanding lens according to claim 1 is characterized in that penetrating in photo resistance when laser, and the photo resistance meeting produces signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210015807.3A CN103212791B (en) | 2012-01-19 | 2012-01-19 | Coaxial collimator for beam expander |
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| CN201210015807.3A CN103212791B (en) | 2012-01-19 | 2012-01-19 | Coaxial collimator for beam expander |
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| CN103212791A true CN103212791A (en) | 2013-07-24 |
| CN103212791B CN103212791B (en) | 2017-05-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092326A (en) * | 2021-04-09 | 2021-07-09 | 珠海欧美克仪器有限公司 | double-Fourier debugging device and method for spray laser particle analyzer |
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| JPH0872300A (en) * | 1994-09-06 | 1996-03-19 | Ricoh Co Ltd | Light source |
| US6272156B1 (en) * | 1998-01-28 | 2001-08-07 | Coherent, Inc. | Apparatus for ultrashort pulse transportation and delivery |
| JP2004077705A (en) * | 2002-08-14 | 2004-03-11 | Ricoh Co Ltd | Lens driving device, method of assembling the same, beam expander device, and optical pickup device |
| CN1614461A (en) * | 2004-11-26 | 2005-05-11 | 中国科学院上海光学精密机械研究所 | Universal beam expanding system for light beams |
| CN2748941Y (en) * | 2004-11-26 | 2005-12-28 | 中国科学院上海光学精密机械研究所 | Universal beam expanding system for light beams |
| CN201034601Y (en) * | 2007-06-05 | 2008-03-12 | 天津欧波精密仪器股份有限公司 | Analyzing prism device |
| CN201601384U (en) * | 2009-11-20 | 2010-10-06 | 西安华科光电有限公司 | High concentricity line laser module |
| CN101859031A (en) * | 2010-05-20 | 2010-10-13 | 昆明理工大学 | Auxiliary adjusting instrument of light spot center of expanded narrow laser beam |
| CN201758240U (en) * | 2010-05-21 | 2011-03-09 | 太原理工大学 | Semiconductor laser collimation beam expander |
| CN202607072U (en) * | 2012-01-19 | 2012-12-19 | 昆山思拓机器有限公司 | Coaxial collimator for beam expander |
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2012
- 2012-01-19 CN CN201210015807.3A patent/CN103212791B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0872300A (en) * | 1994-09-06 | 1996-03-19 | Ricoh Co Ltd | Light source |
| US6272156B1 (en) * | 1998-01-28 | 2001-08-07 | Coherent, Inc. | Apparatus for ultrashort pulse transportation and delivery |
| JP2004077705A (en) * | 2002-08-14 | 2004-03-11 | Ricoh Co Ltd | Lens driving device, method of assembling the same, beam expander device, and optical pickup device |
| CN1614461A (en) * | 2004-11-26 | 2005-05-11 | 中国科学院上海光学精密机械研究所 | Universal beam expanding system for light beams |
| CN2748941Y (en) * | 2004-11-26 | 2005-12-28 | 中国科学院上海光学精密机械研究所 | Universal beam expanding system for light beams |
| CN201034601Y (en) * | 2007-06-05 | 2008-03-12 | 天津欧波精密仪器股份有限公司 | Analyzing prism device |
| CN201601384U (en) * | 2009-11-20 | 2010-10-06 | 西安华科光电有限公司 | High concentricity line laser module |
| CN101859031A (en) * | 2010-05-20 | 2010-10-13 | 昆明理工大学 | Auxiliary adjusting instrument of light spot center of expanded narrow laser beam |
| CN201758240U (en) * | 2010-05-21 | 2011-03-09 | 太原理工大学 | Semiconductor laser collimation beam expander |
| CN202607072U (en) * | 2012-01-19 | 2012-12-19 | 昆山思拓机器有限公司 | Coaxial collimator for beam expander |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092326A (en) * | 2021-04-09 | 2021-07-09 | 珠海欧美克仪器有限公司 | double-Fourier debugging device and method for spray laser particle analyzer |
| CN113092326B (en) * | 2021-04-09 | 2023-01-03 | 珠海欧美克仪器有限公司 | double-Fourier debugging device and method for spray laser particle analyzer |
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| CN103212791B (en) | 2017-05-31 |
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