CN103212791B - Coaxial collimator for beam expander - Google Patents
Coaxial collimator for beam expander Download PDFInfo
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- CN103212791B CN103212791B CN201210015807.3A CN201210015807A CN103212791B CN 103212791 B CN103212791 B CN 103212791B CN 201210015807 A CN201210015807 A CN 201210015807A CN 103212791 B CN103212791 B CN 103212791B
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Abstract
The present invention relates to a kind of coaxial collimator for beam expander, when mainly solving that beam expanding lens is installed in the prior art, laser beam is not readily reachable by the technical problem that optics is coaxially required, the present invention is by using a kind of coaxial collimator for beam expander, including cylindrical lens barrel, lens barrel one end has light inlet, the other end has light-emitting window, one end that lens barrel has light inlet is connected with laser fiber head, one end with light-emitting window has screw thread, lens barrel is coordinated by the screw thread and beam expanding lens incidence end, light inlet and light-emitting window have photo resistance respectively, photo resistance center has the technical scheme of the circular hole that laser beam passes through, preferably solve the problem, can be used in laser process equipment in the industrial production of the tool fixture of collimator and extender mirror and laser beams coaxial.
Description
Technical field
Set with the tool fixture of laser beams coaxial, particularly Laser Processing for collimator and extender mirror the present invention relates to a kind of
The tool fixture of standby middle collimator and extender mirror and laser beams coaxial.
Background technology
, it is necessary to be adjusted to light path after laser process equipment is completed, the principle of adjustment is to want every in light path
Individual device reaches necessarily required optics axiality.Beam expanding lens plays increase beam diameter as the additional device in light path
Effect, but if its axis crosses conference with laser beam misalignment of axe is caused to pass through the laser beam energy after expanding along axle center
Skewness, such as Fig. 1, then will be to the cut quality of influence laser.It is visual laser beam to install beam expanding lens in the past
It is whether very big, it is necessary to mounting and adjusting repeatedly centrally through, error along beam expanding lens light inlet, it is not easy to reach optics and coaxially require.
The present invention is a kind of coaxial collimator for beam expander, this part is arranged on beam expanding lens and is easy to adjust beam expanding lens and laser beam
To coaxial.
The content of the invention
One of technical problems to be solved by the invention are that installation beam expanding lens present in prior art is visual laser
Whether light beam is very big, it is necessary to mounting and adjusting repeatedly centrally through, error along beam expanding lens light inlet, it is not easy to reach optics coaxial
A kind of technical problem, there is provided new coaxial collimator for beam expander, the coaxial collimator for beam expander have easily by beam expanding lens with swash
Light light beam is adjusted to coaxial advantage.
The two of the technical problems to be solved by the invention are to provide a kind of with the coaxial of one of solution above-mentioned technical problem
The beam expanding lens of collimater.
The three of the technical problems to be solved by the invention are to provide a kind of expanding for the two of use solution above-mentioned technical problem
Mirror is adjusted the coaxial method of laser beam.
To solve one of above-mentioned technical problem, the technical solution adopted by the present invention is as follows：A kind of coaxial collimator for beam expander,
Including cylindrical lens barrel, lens barrel one end has light inlet, and the other end has light-emitting window, and lens barrel has one end and the laser of light inlet
Device optical fiber head is connected, and the one end with light-emitting window has screw thread, and lens barrel is coordinated by the screw thread and beam expanding lens incidence end, enters light
Mouth and light-emitting window have photo resistance respectively, and photo resistance center has the circular hole that laser beam passes through.
In above-mentioned technical proposal, the Circularhole diameter is bigger than the laser beam spot sizes for passing through 1~50 micron.When laser is penetrated
In photo resistance, photo resistance can produce signal.
To solve the two of above-mentioned technical problem, the technical solution adopted by the present invention is as follows：A kind of beam expanding lens, including cylinder
Lens barrel and coaxial collimator.The collimater includes cylindrical lens barrel, and lens barrel one end has light inlet, and the other end has light-emitting window,
One end that lens barrel has light inlet is connected with laser fiber head, and the one end with light-emitting window has screw thread, and lens barrel is by described
Screw thread and beam expanding lens incidence end coordinate, and light inlet and light-emitting window have photo resistance respectively, and photo resistance center has laser light
The circular hole that beam passes through.
To solve the three of above-mentioned technical problem, the technical solution adopted by the present invention is as follows：A kind of tune of coaxial laser light beam
Section method, beam expanding lens is arranged in optical system, and beam expanding lens is together by a threaded connection with coaxial collimator for beam expander,
Regulation sub-assembly, makes laser beam pass through two apertures of coaxial collimator for beam expander, if sub-assembly has inclination or parallel
Offset in optical axis, light all can some fall in photo resistance, photo resistance will produce signal, when regulation to two
Photo resistance all noninductive optical signal feedback when, beam expanding lens just and laser beam reached optics axiality.
The present invention has advantages below：Coaxial collimator for beam expander is a device for integrating frock and feedback of the information
Part, one end is the screwed hole coordinated with beam expanding lens incidence end, has two center bands in the near-end away from beam expanding lens light inlet and distal end
Have the photo resistance of the aperture of 0.05mm bigger than laser beam spot sizes, device clamped one time turning is formed, it is ensured that screwed hole with
The axiality of aperture is that ensure that collimater is coaxial with beam expanding lens.Beam expanding lens is arranged in optical system in dimming process
When, beam expanding lens is together by a threaded connection with coaxial collimator for beam expander, regulation sub-assembly makes laser beam pass through to expand
Two apertures of mirror coaxial collimator, if sub-assembly incline or offset parallel to optical axis, light all can some fall
In photo resistance, then photo resistance will produce signal, when regulation is to two photo resistance all noninductive optical signal feedbacks,
Beam expanding lens has just reached the requirement of optics axiality.
Using the method for the present invention, conventional beam expanding lens is solved in optical system is fitted into, axiality is difficult to adjust, adjust
The problem that is difficult to ensure that of precision.And it is easy to operate, it is easy to control, achieve preferable technique effect.
Brief description of the drawings
Laser beam energy distribution schematic diagram when Fig. 1 is not coaxial beam expanding lens.
Fig. 2 is coaxial collimator for beam expander schematic diagram.
Laser beam energy distribution schematic diagram when Fig. 3 is to install coaxial collimator for beam expander.
In Fig. 1,1 is laser fiber head；2 is laser beam；3 is condenser lens；4 is Laser beam energy distribution.
In Fig. 2,11 is photo resistance；12 is lens barrel；13 is helicitic texture；14 is circular hole.
In Fig. 3,1 is laser fiber head；11 is photo resistance；12 is lens barrel；2 is laser beam；3 is saturating to focus on
Mirror；4 is Laser beam energy distribution.
Below by specific embodiment, the invention will be further elaborated, but is not limited only to the present embodiment.
Specific embodiment
【Embodiment 1】
A kind of coaxial collimator for beam expander, including cylindrical lens barrel, lens barrel one end have light inlet, and the other end has light extraction
Mouthful, one end that lens barrel has light inlet is connected with laser fiber head, and the one end with light-emitting window has screw thread, and lens barrel passes through institute
State screw thread and beam expanding lens incidence end coordinates, light inlet and light-emitting window have photo resistance respectively, and photo resistance center has laser
The circular hole that light beam passes through.
【Embodiment 2】
A kind of coaxial collimator for beam expander, including cylindrical lens barrel, lens barrel one end have light inlet, and the other end has light extraction
Mouthful, one end that lens barrel has light inlet is connected with laser fiber head, and the one end with light-emitting window has screw thread, and lens barrel passes through institute
State screw thread and beam expanding lens incidence end coordinates, light inlet and light-emitting window have photo resistance respectively, and photo resistance center has laser
The circular hole that light beam passes through.The Circularhole diameter is bigger than the laser beam spot sizes for passing through 5 microns.As shown in Figure 2.
【Embodiment 3】
A kind of coaxial collimator for beam expander, including cylindrical lens barrel, lens barrel one end have light inlet, and the other end has light extraction
Mouthful, one end that lens barrel has light inlet is connected with laser fiber head, and the one end with light-emitting window has screw thread, and lens barrel passes through institute
State screw thread and beam expanding lens incidence end coordinates, light inlet and light-emitting window have photo resistance respectively, and photo resistance center has laser
The circular hole that light beam passes through.The Circularhole diameter is bigger than the laser beam spot sizes for passing through 50 microns.
【Embodiment 4】
A kind of coaxial collimator for beam expander, including cylindrical lens barrel, lens barrel one end have light inlet, and the other end has light extraction
Mouthful, one end that lens barrel has light inlet is connected with laser fiber head, and the one end with light-emitting window has screw thread, and lens barrel passes through institute
State screw thread and beam expanding lens incidence end coordinates, light inlet and light-emitting window have photo resistance respectively, and photo resistance center has laser
The circular hole that light beam passes through.The Circularhole diameter is bigger than the laser beam spot sizes for passing through 10 microns.A part falls in photo resistance,
So photo resistance will produce signal.
【Embodiment 5】
A kind of beam expanding lens, including cylindrical lens barrel and coaxial collimator, described coaxial collimator, including cylindrical mirror
Cylinder, lens barrel one end has light inlet, and the other end has light-emitting window, and lens barrel has one end and the laser fiber head phase of light inlet
Even, the one end with light-emitting window has screw thread, and lens barrel is by the screw thread and the cooperation of beam expanding lens incidence end, light inlet and light-emitting window
There is photo resistance respectively, photo resistance center has the circular hole that laser beam passes through.The Circularhole diameter is than the laser that passes through
Beam diameter is big 20 microns.A part falls in photo resistance, then photo resistance will produce signal.
【Embodiment 6】
A kind of adjusting method of coaxial laser light beam, beam expanding lens is arranged in optical system, by beam expanding lens and beam expanding lens
Coaxial collimator is together by a threaded connection, and adjusts sub-assembly, laser beam is passed through two of coaxial collimator for beam expander
Aperture, if sub-assembly have inclination or offset parallel to optical axis, light all can some fall in photo resistance, it is photosensitive
Resistance will produce signal, and when regulation is to two photo resistance all noninductive optical signal feedbacks, beam expanding lens just reaches with laser beam
Optics axiality is arrived.
Described beam expanding lens, including cylindrical lens barrel and coaxial collimator, described coaxial collimator, including cylindrical mirror
Cylinder, lens barrel one end has light inlet, and the other end has light-emitting window, and lens barrel has one end and the laser fiber head phase of light inlet
Even, the one end with light-emitting window has screw thread, and lens barrel is by the screw thread and the cooperation of beam expanding lens incidence end, light inlet and light-emitting window
There is photo resistance respectively, photo resistance center has the circular hole that laser beam passes through.The Circularhole diameter is than the laser that passes through
Beam diameter is big 20 microns.A part falls in photo resistance, then photo resistance will produce signal.
【Embodiment 7】
Coaxial collimator for beam expander is one and frock and feedback of the information and the device of one, and one end is and beam expanding lens is incident
The screwed hole for coordinating is held, in the near-end away from beam expanding lens light inlet with distal end You Liangge centers with bigger than laser beam spot sizes
The photo resistance of the aperture of 0.05mm, device clamped one time turning is formed, it is ensured that screwed hole is to ensure with the axiality of aperture
Collimater is with beam expanding lens coaxial.In dimming process by beam expanding lens be arranged on optical system in when, by beam expanding lens and beam expanding lens
Coaxial collimator is together by a threaded connection, and regulation sub-assembly makes laser beam small by two of coaxial collimator for beam expander
Hole, if sub-assembly have inclination or offset parallel to optical axis, light all can some fall in photo resistance, then light
Quick resistance will produce signal, and when regulation is to two photo resistance all noninductive optical signal feedbacks, beam expanding lens has just reached optics
The requirement of axiality, as shown in Figure 3.
Beam expanding lens of the invention solves conventional beam expanding lens in optical system is fitted into, and axiality is difficult to adjust, regulation
The problem that precision is difficult to ensure that.
Claims (2)
1. a kind of coaxial collimator for beam expander, including cylindrical lens barrel, lens barrel one end has light inlet, and the other end has light extraction
Mouthful, one end that lens barrel has light inlet is connected with laser fiber head, and the one end with light-emitting window has screw thread, and lens barrel passes through institute
State screw thread and beam expanding lens incidence end coordinates, light inlet and light-emitting window have photo resistance respectively, and photo resistance center has laser
The circular hole that light beam passes through, when laser is penetrated in photo resistance, photo resistance can produce signal.
2. coaxial collimator for beam expander according to claim 1, it is characterised in that the Circularhole diameter is than the laser that passes through
Beam diameter is big 1~50 micron.
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 |
Applications Claiming Priority (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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| CN103212791A CN103212791A (en) | 2013-07-24 |
| CN103212791B true CN103212791B (en) | 2017-05-31 |
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| 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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| JP3375429B2 (en) * | 1994-09-06 | 2003-02-10 | 株式会社リコー | Light source device and method of fixing lens to laser |
| 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 |
| 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 light beam expanding system |
| CN1270202C (en) * | 2004-11-26 | 2006-08-16 | 中国科学院上海光学精密机械研究所 | Light beam universal extending system |
| 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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