CN207547872U - A kind of band light polarization state of laser beam - Google Patents
A kind of band light polarization state of laser beam Download PDFInfo
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- CN207547872U CN207547872U CN201721579689.3U CN201721579689U CN207547872U CN 207547872 U CN207547872 U CN 207547872U CN 201721579689 U CN201721579689 U CN 201721579689U CN 207547872 U CN207547872 U CN 207547872U
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- circular polarizing
- laser
- polarizing disk
- laser beam
- polarization state
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Abstract
The utility model laser process equipment field, more particularly to a kind of band light polarization state of laser beam, it includes workbench, the support base on workbench, the laser on support base and at least one circular polarizing disk for switched laser light polarization, wherein, the laser sends out laser beam to circular polarizing disk, is projected after the circular polarizing disk switched laser light polarization.Utility model is provided with multiple circular polarizing disks by designing a kind of band light polarization state of laser beam, the band light polarization state, by CO2The linearly polarized light that laser is sent out is converted to circularly polarized light, and the laser facula for making workpiece to be machined all directions is in the same size, and processing effect is consistent, so as to be conducive to improve the end face quality and processing precision of products of Laser Processing.
Description
Technical field
A kind of the utility model laser process equipment field, and in particular to band light polarization state of laser beam.
Background technology
With the development of science and technology, laser processing application is in the every aspect of production and processing, such as laser designation, laser
It has been shown that, laser printing and laser medicine etc..
Per Shu Jiguang all there are one specific direction of vibration, the propagation of the spatial distribution of laser electric vector vibration for laser
Direction loses symmetry, then can generate laser polarization.And the polarization state of laser includes liner polarization and circular polarization, linear polarization refers to all
Laser all vibrated in identical direction, direction of vibration is located in the plane of the direction of propagation；Circular polarization, which refers to, all to swash
The direction of vibration of light is rotation, and laser is in the shape of a spiral.The process that laser generates does not influence laser polarization direction in itself, but square
The CO of shape fold resonator2The light source of laser tends to amplify the light wave of particular polarization, can generate linearly polarized light.
In CO2In the process of laser, linearly polarized laser beam is easily generated.With linearly polarized laser Shu Jiagong metallic plates
During material, light wave direction of vibration determines different processing effects relative to the angle of machine direction.If machine direction and light wave
Direction of vibration match, then notch will smooth impulse- free robustness；If machine direction is relative to the direction of vibration of light wave into certain
Angle, then burr can be formed by cutting end face.And the laser application of the overwhelming majority is required for processing multiple directions, to ensure that laser adds
Work all directions effect is consistent, it is necessary to which linearly polarized laser beam is converted to circularly polarized laser beam.
Therefore, it is necessary to design a kind of conversion equipment that linearly polarized laser light beam is converted to circularly polarized laser light beam, always
One of the problem of being those skilled in the art's primary study.
Utility model content
The technical problem to be solved by the present invention is to for the drawbacks described above of the prior art, provide a kind of laser light
The band light polarization state of beam solves the problems, such as linearly polarized laser light beam being converted to circularly polarized laser light beam.
To solve the technical problem, the utility model provides a kind of band light polarization state of laser beam, including work
Platform, the band light polarization state further include the support base on workbench, the laser on support base and at least
One circular polarizing disk for being used for switched laser light polarization, wherein, which sends out laser beam to circular polarizing disk, the circle
It is projected after polarizer switched laser light polarization.
Wherein, preferred version is：The inclined-plane of the support base is 45 ° of angles of level, and the laser is set on the inclined-plane
On.
Wherein, preferred version is：The band light polarization state further includes at least one regulating mechanism, which sets
There is the first fixing piece, the circular polarizing disk is set on the first fixing piece；On the laser transmitting laser beam to circular polarizing disk,
And the incident angle of the laser beam and circular polarizing disk is made to be in 45 ° of angles.
Wherein, preferred version is：The regulating mechanism is additionally provided with spring and support plate, between the fixing piece and support plate
It is connected by spring.
Wherein, preferred version is：The workbench has been extended at least one location structure, and the location structure is equipped with
Second fixing piece, the circular polarizing disk are set on the second fixing piece；On the laser transmitting laser beam to circular polarizing disk, and
It is in 45 ° to make the incident angle of the laser beam and circular polarizing disk.
Wherein, preferred version is：Be provided with a light path port on the workbench, the reflection angle of the laser beam with
The circular polarizing disk on the second fixing piece is arranged in 45 ° of angles, laser beam is reflexed to light path port simultaneously by the circular polarizing disk
It projects.
Wherein, preferred version is：The light path port is connected with external laser port.
Wherein, preferred version is：The laser is CO2 lasers.
Wherein, preferred version is：The circular polarizing disk includes the first circular polarizing disk, the second circular polarizing disk and third circular polarization
Piece, the laser send out laser beam to the first circular polarizing disk, and the laser beam sent out and the first circular polarizing disk are in 45 ° of folders
Angle；The laser beam sent out is reflected into the second circular polarizing disk, and the laser beam reflected and the second circle by first circular polarizing disk
Polarizer is in 45 ° of angles；The laser beam of reflection is reflected into third circular polarizing disk, and the laser reflected by second circular polarizing disk
Light beam is in 45 ° of angles with third circular polarizing disk；The third circular polarizing disk projects the laser beam of reflection.
The beneficial effects of the utility model are that compared with prior art, the utility model is by designing a kind of laser light
The band light polarization state of beam, the band light polarization state are provided with multiple circular polarizing disks, by CO2The linear polarization that laser is sent out
Light is converted to circularly polarized light, and the laser facula for making workpiece to be machined all directions is in the same size, and processing effect is consistent, so as to advantageous
In the end face quality and processing precision of products that improve Laser Processing；In addition, the utility model band light polarization state is simple in structure,
It is of low cost, for ease of maintenaince.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is the schematic diagram of the utility model band light polarization state；
Fig. 2 is the application drawing of the utility model band light polarization state；
Fig. 3 is the schematic diagram of the utility model circular polarizing disk；
Fig. 4 is the schematic diagram of the utility model support base；
Fig. 5 a are the schematic diagrames that the utility model linearly polarized light is propagated；
Fig. 5 b are the schematic diagrames that the utility model circularly polarized light is propagated；
Fig. 6 a are the schematic diagrames of the utility model linearly polarized light processing effect；
Fig. 6 b are the schematic diagrames of the utility model circularly polarized light processing effect.
Specific embodiment
In conjunction with attached drawing, elaborate to the preferred embodiment of the utility model.
As shown in Fig. 1 to Fig. 6 b, the utility model provides a kind of preferred reality of the band light polarization state of laser beam 100
Apply example.
Specifically, and with reference to figure 1 and Fig. 2, a kind of band light polarization state of laser beam 100, including workbench 10,
In, the band light polarization state further includes the support base 20 on workbench 10, the laser for emitting laser beam 100
Device 30 and at least one circular polarizing disk 40 for 100 polarization state of switched laser light beam, the laser 30 are set on support base 20
On.The 30 emission lines polarized laser beam 110 of laser, the circular polarizing disk 40 is 90 ° of reflectivity phase delay devices, by line
Polarized laser beam 110 is converted to circularly polarized laser beam 120.Wherein, which sends out linearly polarized laser beam 110 to circular polarization
Piece 40, the 40 conversion line polarized laser beam 110 of circular polarizing disk is projects after circularly polarized laser beam 120.With reference to figure 1, the polarization state
Conversion equipment is arranged on a welder, and either the welder or cutter device include a rack on cutter device, described
Workbench 10 is set in rack, and the 40 conversion line polarized laser beam 110 of circular polarizing disk is injects to weldering after circularly polarized laser beam 120
Connection device is either subjected on cutter device or cutting operation.
Further, and with reference to figure 3, the support base 20 includes inclined-plane 21 and bottom surface 22, and the inclined-plane 21 and bottom surface 22 are set
45 ° are set to, the laser 30 is set on the inclined-plane 21, ensures 110 side of polarization of linearly polarized laser beam that laser 30 emits
To with circular polarizing disk 40 be in 45° angle.The bottom surface 22, which is extended, a bending section, which is used to block the laser
30, it is enable to be fixed on the inclined-plane 21, prevents its whereabouts.
In the present embodiment, the band light polarization state further includes at least one regulating mechanism 50, the regulating mechanism 50
Equipped with the first fixing piece 51, the circular polarizing disk 40 is set on the first fixing piece 51；The laser 30 emits laser beam 100
Onto circular polarizing disk 40, and the incident angle of the laser beam 100 and circular polarizing disk 40 is made to be in 45 ° of angles.With reference to figure 4, swash
The linearly polarized laser beam 110 that light device 30 generates enters the reflecting surface of directive circular polarizing disk 40, the linearly polarized laser beam 110 with 45° angle
Can be decomposed into polarization direction be parallel to the reflecting surface P polarization light and polarization direction perpendicular to the reflecting surface S-polarization
Light, the P polarization light and S-polarization light are the polarised light that frequency is identical, polarization direction is vertical each other.The circular polarizing disk 40 is coated with more
Tunic, when the reflecting surface of P polarization light and S-polarization light emitting to circular polarizing disk 40, one of them can regular reflection, another
Circular polarizing disk 40 can then be penetrated to deeper film layer, so as to which P polarization light and the time of S-polarization light one very little of generation be caused to prolong
Late, which results in the phase shift of pi/2, when P polarization light and S-polarization optical coupling, the rail of the light vector end of synthesis
Mark is rounded, that is, generates circularly polarized laser beam 120.
Wherein, the regulating mechanism 50 is additionally provided with spring 52 and support plate 53, first fixing piece 51 and support plate 53
Between pass through 52 elastic connection of spring.The spring 52 be provided with it is multiple, adjust circular polarizing disk 40 be in laser beam 100
After 45° angle setting, pass through fixed first fixing piece 51 of bolt (being not drawn into figure) and the support plate 53.
In the present embodiment, the workbench 10, which is extended, at least one location structure 60, the location structure 60
Equipped with the second fixing piece 61, the circular polarizing disk 40 is set on the second fixing piece 61；The laser 30 emits laser beam 100
Onto circular polarizing disk 40, and the incident angle of the laser beam 100 and circular polarizing disk 40 is made to be in 45 ° of angles.With reference to figure 4, swash
The linearly polarized laser beam 110 that light device 30 generates enters the reflecting surface of directive circular polarizing disk 40, the linearly polarized laser beam 110 with 45° angle
Can be decomposed into polarization direction be parallel to the reflecting surface P polarization light and polarization direction perpendicular to the reflecting surface S-polarization
Light, the P polarization light and S-polarization light are the polarised light that frequency is identical, polarization direction is vertical each other.The circular polarizing disk 40 is coated with more
Tunic, when the reflecting surface of P polarization light and S-polarization light emitting to circular polarizing disk 40, one of them can regular reflection, another
Circular polarizing disk 40 can then be penetrated to deeper film layer, so as to which P polarization light and the time of S-polarization light one very little of generation be caused to prolong
Late, which results in the phase shift of pi/2, when P polarization light and S-polarization optical coupling, the rail of the light vector end of synthesis
Mark is rounded, that is, generates circularly polarized laser beam 120.Linearly polarized laser beam 110 by repeatedly the reflecting surface of circular polarizing disk 40 into
After row reflection, ensure that linearly polarized laser beam 110 is converted into circularly polarized laser beam 120.
Per Shu Guangbo all there are one specific direction of vibration, and to be the direction vibrated by all light waves provide the polarization of laser
's.With reference to figure 5a, all light waves of linearly polarized laser beam 110 all vibrate in identical direction, and direction of vibration is located at perpendicular to biography
It broadcasts in the plane in direction；With reference to figure 5b, the direction of vibration of all light waves of circularly polarized laser beam 120 is rotation, and light wave is in spiral shell
Revolve shape.During with 100 workpieces processing of laser beam, light wave direction of vibration determines different processing relative to the angle of machine direction
Effect；If the direction of vibration of machine direction and light wave matches, notch will smooth impulse- free robustness；If machine direction is opposite
Angled in the direction of vibration of light wave, then burr can be formed by cutting end face.With reference to figure 6a, linearly polarized laser beam 110 can only
Smooth notch is generated in single direction；With reference to figure 6b, circularly polarized laser beam 120 can be generated in all directions and uniformly be cut
Mouthful.In Laser Processing, to ensure that all directions effect is consistent, need linearly polarized laser beam 110 being converted into circularly polarized laser
Beam 120.
Further, the location structure 60 and workbench 10 be both provided with one for laser beam 100 by light
Road port 70, the reflection angle of the laser beam 100 and the circular polarizing disk 40 being arranged on the second fixing piece 61 are pressed from both sides in 45 °
Laser beam 100 is reflexed to light path port 70 and projected by angle, the circular polarizing disk 40.Wherein, the light path port 70 with it is outer
The laser port connection in portion.After linearly polarized laser beam 110 is converted to circularly polarized laser beam 120 by band light polarization state, by circle
Polarized laser beam 120 is reflected into next processing unit (plant) by path channels 70, so as to which product be enable to utilize circularly polarized laser beam
120 are laser machined.
Preferably, the laser 30 is the CO of square-folded resonator2Laser, the CO2Laser is under external drive
Linearly polarized laser beam 110 is generated, is concurrently incident upon the circular polarizing disk 40.Wherein, the polarization direction of linearly polarized laser beam 110 is parallel
In CO2The bottom surface mounting surface of laser or perpendicular to CO2The bottom surface mounting surface of laser.
In the present embodiment, need to occupy the more position of workbench 10 due to laser 30, for cooperating platform
10 position makes full use of the space on 10 surface of workbench, also, with reference to figure 2, the processing below band light polarization state
Device is in symmetrical structure, then in order to coordinate processing unit (plant) and for beauty, the light path port 70 needs to be arranged on workbench
10 centre position ensures that circularly polarized laser beam 120 can be reflected into Working position.It is inclined that the circular polarizing disk 40 includes the first circle
Shake piece, the second circular polarizing disk and third circular polarizing disk, and the laser 30 sends out the 100 to the first circular polarizing disk of laser beam, and
100 and first circular polarizing disk of laser beam sent out is in 45 ° of angles；First circular polarizing disk is anti-by the laser beam 100 sent out
The second circular polarizing disk is mapped to, and 100 and second circular polarizing disk of laser beam reflected is in 45 ° of angles；Second circular polarizing disk will
The laser beam 100 of reflection is reflected into third circular polarizing disk, and the laser beam 100 reflected is pressed from both sides with third circular polarizing disk in 45 °
Angle；The third circular polarizing disk projects the laser beam 100 of reflection.By the multiple reflections of multiple circular polarizing disks 40, ensureing will
The linearly polarized laser beam 110 that laser 30 is launched is converted into circularly polarized laser beam 120, also, the laser 30 can be separated by
The light path port 70 is set.If laser 30 by 110 direct projection third circular polarizing disk of linearly polarized laser beam, then needs to occupy work
Make 10 more positions of platform, workbench 10 needs the bigger set, can not make full use of the space on 10 surface of workbench, cause
The unnecessary wasting of resources.
Alternatively, in the present embodiment, the band light polarization state includes circular polarizing disk 40, the first reflecting optics and second
Reflecting optics, the laser 30 send out laser beam 100 and arrive circular polarizing disk 40, and the laser beam 100 sent out and circular polarization
Piece 40 is in 45 ° of angles, and linearly polarized laser beam 110 is converted in circularly polarized laser beam 120；The laser that the circular polarizing disk 40 will be sent out
Light beam 100 is reflected into the first reflecting optics, and 100 and first reflecting optics of laser beam reflected are in 45 ° of angles；This is first anti-
It penetrates eyeglass and the laser beam 100 of reflection is reflected into the second reflecting optics, and 100 and second reflecting optics of laser beam reflected
In 45 ° of angles；Second reflecting optics project the laser beam 100 of reflection.Only one circular polarizing disk 40 of setting saves material
Expect cost.
In conclusion the above is only the preferred embodiments of the present utility model only, it is not intended to limit the utility model
Protection domain.Any modification made within the spirit and principle of the utility model, equivalent replacement, improve etc., it should all wrap
Containing within the protection scope of the present utility model.
Claims (9)
1. a kind of band light polarization state of laser beam, including workbench, it is characterised in that：The band light polarization state is also
Support base including being set on workbench, the laser on support base and it is at least one for switched laser light beam it is inclined
The circular polarizing disk of polarization state, wherein, which sends out laser beam to circular polarizing disk, the circular polarizing disk switched laser light beam polarization
It is projected after state.
2. band light polarization state according to claim 1, it is characterised in that：The inclined-plane of the support base is 45 ° of level
Angle, the laser are set on the inclined-plane.
3. band light polarization state according to claim 2, it is characterised in that：The band light polarization state further include to
A few regulating mechanism, the regulating mechanism are equipped with the first fixing piece, and the circular polarizing disk is set on the first fixing piece；The laser
On device transmitting laser beam to circular polarizing disk, and the incident angle of the laser beam and circular polarizing disk is made to be in 45 ° of angles.
4. band light polarization state according to claim 3, it is characterised in that：The regulating mechanism is additionally provided with spring and branch
Fagging is connected between the fixing piece and support plate by spring.
5. band light polarization state according to claim 2, it is characterised in that：The workbench has been extended at least one
A location structure, the location structure are equipped with the second fixing piece, and the circular polarizing disk is set on the second fixing piece；The laser
Emit on laser beam to circular polarizing disk, and the incident angle of the laser beam and circular polarizing disk is made to be in 45 °.
6. band light polarization state according to claim 5, it is characterised in that：A light path is provided on the workbench to lead to
Mouthful, the reflection angle of the laser beam and the circular polarizing disk that is arranged on the second fixing piece are in 45 ° of angles, the circular polarizing disk
Laser beam is reflexed into light path port and is projected.
7. band light polarization state according to claim 6, it is characterised in that：The light path port and external laser port
Connection.
8. band light polarization state according to claim 1, it is characterised in that：The laser is CO2Laser.
9. band light polarization state according to claim 1, it is characterised in that：The circular polarizing disk includes the first circular polarization
Piece, the second circular polarizing disk and third circular polarizing disk, the laser send out laser beam to the first circular polarizing disk, and what is sent out swashs
Light light beam and the first circular polarizing disk are in 45 ° of angles；The laser beam sent out is reflected into the second circular polarization by first circular polarizing disk
Piece, and the laser beam reflected and the second circular polarizing disk are in 45 ° of angles；Second circular polarizing disk reflects the laser beam of reflection
To third circular polarizing disk, and the laser beam reflected and third circular polarizing disk are in 45 ° of angles；The third circular polarizing disk is by reflection
Laser beam projects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721579689.3U CN207547872U (en) | 2017-11-22 | 2017-11-22 | A kind of band light polarization state of laser beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721579689.3U CN207547872U (en) | 2017-11-22 | 2017-11-22 | A kind of band light polarization state of laser beam |
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| Publication Number | Publication Date |
|---|---|
| CN207547872U true CN207547872U (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721579689.3U Active CN207547872U (en) | 2017-11-22 | 2017-11-22 | A kind of band light polarization state of laser beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114280805A (en) * | 2022-03-04 | 2022-04-05 | 武汉华锐超快光纤激光技术有限公司 | Light beam polarization adjusting device and using method thereof |
-
2017
- 2017-11-22 CN CN201721579689.3U patent/CN207547872U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114280805A (en) * | 2022-03-04 | 2022-04-05 | 武汉华锐超快光纤激光技术有限公司 | Light beam polarization adjusting device and using method thereof |
| CN114280805B (en) * | 2022-03-04 | 2022-07-12 | 武汉华锐超快光纤激光技术有限公司 | Light beam polarization adjusting device and using method thereof |
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