CN217034409U - Laser dual beam expanding cleaning system - Google Patents
Laser dual beam expanding cleaning system Download PDFInfo
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- CN217034409U CN217034409U CN202220658828.6U CN202220658828U CN217034409U CN 217034409 U CN217034409 U CN 217034409U CN 202220658828 U CN202220658828 U CN 202220658828U CN 217034409 U CN217034409 U CN 217034409U
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- 238000004140 cleaning Methods 0.000 title claims abstract description 24
- 230000009977 dual effect Effects 0.000 title claims description 15
- 238000002834 transmittance Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 9
- 238000005457 optimization Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
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Abstract
The utility model relates to a laser double-beam expanding cleaning system, which comprises: the laser beam splitter comprises a first beam expander set, a vibrating mirror, a second beam expander set and a focusing set, wherein the first beam expander set, the vibrating mirror, the second beam expander set and the focusing set are sequentially arranged along a laser propagation path. The beneficial effects are that: laser beams are incident on the first beam expanding lens group, subjected to primary beam expansion by the first beam expanding lens group and then incident into the vibrating lens, then emitted out of the vibrating lens and incident into the second beam expanding lens group, subjected to secondary beam expansion by the second beam expanding lens group and then incident into the focusing lens group, and finally focused by the focusing lens group, and laser cleaning is realized by controlling the vibrating lens; the optimization of the light path is realized through twice beam expansion, the volume and the cost of the galvanometer are greatly reduced, and in addition, the focusing distance is prolonged through twice beam expansion, so that the focusing at a longer distance can be realized.
Description
Technical Field
The utility model relates to the field of optics, in particular to a laser double-beam-expanding cleaning system.
Background
Because of the excellent energy transmission capability of laser, laser has gained important application in industry, medical treatment and military, and the research work in laser application has become the focus of research in the optical field. In some application environments, the volume of the laser equipment is required, the laser cleaning is a blank area for remote cleaning, and geometric magnification of a light beam is required for realizing the remote cleaning of the laser, but the aperture of the required galvanometer is large, and the cost and the appearance structure of the whole equipment are large loads.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the present invention is to provide a laser dual beam expanding cleaning system to overcome the above-mentioned deficiencies in the prior art.
The technical scheme for solving the technical problems is as follows: a laser dual beam expanding cleaning system comprising: the laser beam splitter comprises a first beam expander set, a vibrating mirror, a second beam expander set and a focusing set, wherein the first beam expander set, the vibrating mirror, the second beam expander set and the focusing set are sequentially arranged along a laser propagation path.
The utility model has the beneficial effects that:
laser beams are incident on the first beam expanding lens group, subjected to primary beam expansion by the first beam expanding lens group and then incident into the vibrating lens, then emitted out of the vibrating lens and incident into the second beam expanding lens group, subjected to secondary beam expansion by the second beam expanding lens group and then incident into the focusing lens group, and finally focused by the focusing lens group, and laser cleaning is realized by controlling the vibrating lens;
the optimization of the light path is realized through twice beam expansion, the volume and the cost of the galvanometer are greatly reduced, and in addition, the focusing distance is prolonged through twice beam expansion, so that the focusing at a longer distance can be realized.
On the basis of the technical scheme, the utility model can be further improved as follows.
Further, the first beam expander set is composed of concave-convex lenses.
Adopt above-mentioned further beneficial effect to do: the corresponding beam expanding requirements can be effectively met.
Furthermore, the second beam expander group is composed of concave-convex lenses.
Adopt above-mentioned further beneficial effect to do: the corresponding beam expanding requirements can be effectively met.
Furthermore, the focusing lens group consists of concave-convex lenses.
Adopt above-mentioned further beneficial effect to do: the corresponding focusing requirements can be effectively met.
Further, the second beam expanding lens group expands the light spots emitted from the vibrating lens on the second beam expanding lens group by 0.3 times.
Adopt above-mentioned further beneficial effect to do: the second beam expander group is used for carrying out secondary beam expansion, wherein, secondary beam expansion is to the facula after expanding expand individual 0.3 times, can prolong about 2 meters actually and focus.
Furthermore, the galvanometer adopts a grating galvanometer.
Adopt above-mentioned further beneficial effect to do: the precision is high, satisfies to the light beam sweep demand under the remote.
Furthermore, the lenses adopted by the first beam expander set, the second beam expander set and the focusing lens set are coated with antireflection films, and the transmittance of the antireflection films is more than 99.8%.
Adopt above-mentioned further beneficial effect to do: can effectively improve the laser transmittance.
Further, the surface shape precision of the lens is 4/lambda-10/lambda.
Further, the focal length tolerance of the lens is less than 1% and greater than-1%.
Further, the lens is decentered by 1 'to 10'.
The beneficial effects of adopting the three steps are as follows: the use precision can be effectively ensured.
Drawings
Fig. 1 is a structural diagram of a laser double-beam-expanding cleaning system according to the present invention.
In the drawings, the reference numbers indicate the following list of parts:
1. the device comprises a first beam expander set, a vibrating mirror 2, a second beam expander set, a focusing mirror set 4 and a focusing mirror set.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth to illustrate, but are not to be construed to limit the scope of the utility model.
Example 1
As shown in fig. 1, a laser dual beam expanding cleaning system includes:
the focusing system comprises a first beam expander set 1, a vibrating mirror 2, a second beam expander set 3 and a focusing mirror set 4;
the first beam expander set 1, the vibrating mirror 2, the second beam expander set 3 and the focusing mirror set 4 are sequentially arranged along a laser propagation path;
the method comprises the following specific steps:
the light inlet of the vibrating mirror 2 faces the light outlet side of the first beam expander set 1, the light outlet of the vibrating mirror 2 faces the light inlet side of the second beam expander set 3, and the light outlet side of the second beam expander set 3 faces the light inlet side of the focusing mirror set 4;
first beam expander set 1: the main beam expanding is to expand the light beam to the size of the acceptable range of the galvanometer 2;
the second beam expander group 3 is used for auxiliary beam expansion and carries out secondary beam expansion on the emergent light beam of the vibrating mirror 2 to achieve beam expansion supplement so as to meet the requirement of a long-distance light spot;
a focusing lens group 4: the light spots after twice beam expansion are converged in a focusing mirror group 4 to form long-distance focusing;
laser beams are incident on the first beam expanding lens group 1, enter the vibrating lens group 2 after being subjected to primary beam expansion by the first beam expanding lens group 1, then exit from the vibrating lens group 2 and enter the second beam expanding lens group 3, are subjected to secondary beam expansion by the second beam expanding lens group 3 and enter the focusing lens group 4, and finally are focused by the focusing lens group 4, and laser cleaning is realized by controlling the vibrating lens group 2;
theoretically 4 times can be focused at 10 m.
Example 2
As shown in fig. 1, this embodiment is a further improvement on embodiment 1, and specifically includes the following steps:
the first beam expander set 1 is composed of a concave-convex lens, the beam expanding principle of the first beam expander set is the prior art, the concave lens is used as an input lens, the convex lens is used as an output lens, both sides of the concave lens are concave surfaces, one side of the convex lens is a concave surface, the other side of the convex lens is a convex surface, and the concave surface of the convex lens faces the concave surface of the concave lens.
Example 3
As shown in fig. 1, this embodiment is a further improvement on embodiment 1 or 2, and specifically includes the following steps:
the second beam expander set 3 is composed of a concave-convex lens, the beam expanding principle is the prior art, the concave lens is used as an input lens, the convex lens is used as an output lens, both sides of the concave lens are concave surfaces, one side of the convex lens is a concave surface, the other side of the convex lens is a convex surface, and the concave surface of the convex lens faces the concave surface of the concave lens.
Example 4
As shown in fig. 1, this embodiment is a further improvement on the basis of embodiment 1, 2 or 3, and specifically includes the following steps:
the focusing lens group 4 is composed of a concave-convex lens, the focusing principle is the prior art, the concave lens is used as an input lens, the convex lens is used as an output lens, both sides of the concave lens are concave surfaces, one side of the convex lens is a concave surface, the other side of the convex lens is a convex surface, and the concave surface of the convex lens faces the concave surface of the concave lens. Example 5
As shown in fig. 1, this embodiment is a further improvement on any embodiment of embodiments 1 to 4, and specifically includes the following steps:
the second beam expander group 3 expands the beam 0.3 times again to the facula that shoots on second beam expander group 3 from vibrating mirror 2, and second beam expander group 3 is used for carrying on the secondary and expands the beam, and wherein, the secondary expands the beam and expands the individual 0.3 times again to the facula after expanding, can prolong about 2 meters actually and focus, for example 10 mm's facula expands 0.3 times again, 13.33mm promptly, and the facula is bigger, can realize that the focus facula is less.
Example 6
As shown in fig. 1, this embodiment is a further improvement on any embodiment of embodiments 1 to 5, and specifically includes the following steps:
since a high accuracy is required for the predicted position of the range swept by the light beam at a long distance, the galvanometer 2 is preferably a grating galvanometer.
Example 7
As shown in fig. 1, this embodiment is a further improvement on any embodiment of embodiments 1 to 6, and specifically includes the following steps:
the lens used by the first beam expander set 1 is coated with an antireflection film, the lens used by the second beam expander set 3 is coated with an antireflection film, and the lens used by the focusing lens set 4 is coated with an antireflection film, so that the laser transmittance can be effectively improved by coating the antireflection film.
In this embodiment, the transmittance of the antireflection film is required to be greater than 99.8%.
Example 8
As shown in fig. 1, this embodiment is a further improvement on embodiment 7, and specifically includes the following steps:
the surface accuracy of the lens is 4/lambda-10/lambda, the focal distance tolerance of the lens is less than 1% and more than-1%, and in addition, the eccentricity of the lens is 1 'to 10'.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A laser dual beam expanding cleaning system, comprising: the laser beam focusing system comprises a first beam expander set (1), a vibrating mirror (2), a second beam expander set (3) and a focusing mirror set (4), wherein the first beam expander set (1), the vibrating mirror (2), the second beam expander set (3) and the focusing mirror set (4) are sequentially arranged along a laser propagation path.
2. The laser dual beam expanding cleaning system according to claim 1, wherein: the first beam expander group (1) is composed of concave-convex lenses.
3. The laser dual beam expanding cleaning system according to claim 1, wherein: the second beam expander group (3) is composed of concave-convex lenses.
4. The laser dual beam expanding cleaning system according to claim 1, wherein: the focusing lens group (4) is composed of concave-convex lenses.
5. The laser dual beam expanding cleaning system according to claim 1, wherein: and the second beam expander group (3) expands the light spots emitted from the vibrating mirror (2) to the second beam expander group (3) by 0.3 times.
6. The laser dual beam expanding cleaning system according to claim 1, wherein: the galvanometer (2) adopts a grating galvanometer.
7. The laser dual beam expanding cleaning system according to claim 1, wherein: the lenses adopted by the first beam expander set (1), the second beam expander set (3) and the focusing lens set (4) are all coated with antireflection films, and the transmittance of the antireflection films is greater than 99.8%.
8. The laser dual beam expanding cleaning system according to claim 7, wherein: the surface accuracy of the lens is 4/lambda-10/lambda.
9. The laser dual beam expanding cleaning system according to claim 7, wherein: the focal length tolerance of the lens is less than 1% and greater than-1%.
10. The laser dual beam expanding cleaning system according to claim 7, wherein: the lens is decentered by 1 'to 10'.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220658828.6U CN217034409U (en) | 2022-03-24 | 2022-03-24 | Laser dual beam expanding cleaning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220658828.6U CN217034409U (en) | 2022-03-24 | 2022-03-24 | Laser dual beam expanding cleaning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217034409U true CN217034409U (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220658828.6U Active CN217034409U (en) | 2022-03-24 | 2022-03-24 | Laser dual beam expanding cleaning system |
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| Country | Link |
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| CN (1) | CN217034409U (en) |
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- 2022-03-24 CN CN202220658828.6U patent/CN217034409U/en active Active
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