CN220795588U - Laser module with high facula quality - Google Patents
Laser module with high facula quality Download PDFInfo
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- CN220795588U CN220795588U CN202321869406.4U CN202321869406U CN220795588U CN 220795588 U CN220795588 U CN 220795588U CN 202321869406 U CN202321869406 U CN 202321869406U CN 220795588 U CN220795588 U CN 220795588U
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- cylindrical mirror
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- concave
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- 230000010287 polarization Effects 0.000 claims abstract description 15
- 238000007493 shaping process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Semiconductor Lasers (AREA)
Abstract
The utility model discloses a laser module with high facula quality, which comprises a polarization spectroscope, a plano-concave cylindrical mirror, a plano-convex cylindrical mirror and a focusing lens which are sequentially arranged; the two opposite sides of the polarization spectroscope are respectively provided with a first laser module and a second laser module; the concave surface of the plano-concave cylindrical mirror is arranged opposite to the second plane of the plano-convex cylindrical mirror; the convex surface of the plano-convex cylindrical lens is arranged opposite to the focusing lens; the utility model sequentially sets a polarization spectroscope, a plano-concave cylindrical mirror, a plano-convex cylindrical mirror and a focusing lens, and a first laser module and a second laser module are respectively arranged on two opposite sides of the polarization spectroscope; the concave surface of the plano-concave cylindrical mirror is arranged opposite to the second plane of the plano-convex cylindrical mirror; the convex surface of the plano-convex cylindrical lens is arranged opposite to the focusing lens; the light beam is reduced by optically shaping the ordinary laser diode using an aspherical collimator lens and a cylindrical mirror.
Description
Technical Field
The utility model relates to the technical field of laser modules, in particular to a laser module with high facula quality.
Background
At present, in the application of laser, particularly in the cutting and engraving application, the quality of laser spots has high requirements, and the quality of the spots directly influences the processing performance of a module; the laser focusing light spot is small, the energy density is high, the engraving deformation is small, the heat affected zone is small, the processing precision and the processing speed are effectively improved, and the light spot quality of the laser on the market at present is not well solved.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a laser module with high facula quality so as to solve the technical problem in the background art.
The laser module with high facula quality is realized by the following technical scheme: comprises a polarization spectroscope, a plano-concave cylindrical mirror, a plano-convex cylindrical mirror and a focusing lens which are sequentially arranged; the two opposite sides of the polarization spectroscope are respectively provided with a first laser module and a second laser module;
the concave surface of the plano-concave cylindrical mirror is arranged opposite to the second plane of the plano-convex cylindrical mirror; the convex surface of the plano-convex cylindrical lens is arranged opposite to the focusing lens.
As a preferable technical scheme, the radius of the concave surface of the plano-concave cylindrical mirror is set to be 2mm; the radius of the convex surface of the plano-convex cylindrical mirror is set to 8mm.
As a preferable technical scheme, the first laser module comprises a first laser diode and a first aspheric collimating lens which are sequentially arranged; the second laser module comprises a second laser diode and a second aspheric collimating lens which are sequentially arranged;
the polarizing spectroscope is provided with a first reflecting surface and a second reflecting surface; the first reflecting surface is arranged opposite to the first aspheric collimating lens; the second reflecting surface is arranged opposite to the second aspheric collimating lens.
As a preferable technical scheme, a half-wave plate is arranged between the first laser diode and the first aspheric collimating lens.
As a preferable technical scheme, the first reflecting surface and the first aspheric collimating lens are arranged at 45 degrees; the second reflecting surface and the second aspheric collimating lens are arranged at 45 degrees.
The beneficial effects of the utility model are as follows: the method comprises the steps that a polarization spectroscope, a plano-concave cylindrical mirror, a plano-convex cylindrical mirror and a focusing lens are sequentially arranged, and a first laser module and a second laser module are respectively arranged on two opposite sides of the polarization spectroscope; the concave surface of the plano-concave cylindrical mirror is arranged opposite to the second plane of the plano-convex cylindrical mirror; the convex surface of the plano-convex cylindrical lens is arranged opposite to the focusing lens; the light beam is reduced by optically shaping the ordinary laser diode using an aspherical collimator lens and a cylindrical mirror.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a laser module with high spot quality according to the present utility model;
FIG. 2 is a schematic diagram of a laser module with high spot quality according to the present utility model;
FIG. 3 is a schematic diagram of a laser module with high spot quality according to the present utility model.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
As shown in fig. 1-3, the laser module with high light spot quality comprises a polarization beam splitter 4, a plano-concave cylindrical mirror 5, a plano-convex cylindrical mirror 6 and a focusing lens 7 which are sequentially arranged; the two opposite sides of the polarization beam splitter 4 are respectively provided with a first laser module 100 and a second laser module 200;
the concave surface 5-2 of the plano-concave cylindrical mirror 5 is arranged opposite to the second plane 6-1 of the plano-convex cylindrical mirror 6; the convex surface 6-2 of the plano-convex cylindrical mirror 6 is arranged opposite to the focusing lens 7; the light beam is reduced by optically shaping the ordinary laser diode using an aspherical collimator lens and a cylindrical mirror.
In this embodiment, the radius of the concave surface 5-2 of the plano-concave cylindrical mirror 5 is set to 2mm; the radius of the convex surface 6-2 of the plano-convex cylindrical mirror 6 is set to 8mm;
the first laser module 100 comprises a first laser diode 1-1 and a first aspheric collimating lens 2-1 which are sequentially arranged; the second laser module 200 comprises a second laser diode 1-2 and a second aspheric collimating lens 2-2 which are sequentially arranged;
the polarizing beam splitter 4 is provided with a first reflecting surface 111 and a second reflecting surface 222; the first reflecting surface 111 is arranged opposite to the first aspheric collimating lens 2-1; the second reflecting surface 222 is arranged opposite to the second aspheric collimating lens 2-2;
after the first laser diode or the second laser diode passes through the first aspheric collimating lens or the second aspheric collimating lens, the beam width is about 0.75 x 3mm, and the divergence angle is about 3 x 12mrad;
the primary beam of the first laser diode is S polarized light, and the primary beam (beam generated by the first laser diode) passes through a half-wave plate and becomes P polarized light, so that the primary beam can pass through a polarization beam splitter; the paraxial light beam (the light beam generated by the second laser diode) is S-polarized light, reflected by the polarization beam splitter, and the principal axis light beam and the paraxial light beam thereby combine one light beam.
After the light beam passes through the plano-concave cylindrical mirror with the radius of 2mm and the plano-convex cylindrical mirror with the radius of 8mm, the beam is expanded in the X direction by 4 accompany, the width of the emergent light beam becomes about 3X 3mm, and the divergence angle is about 3X 3mrad.
In the embodiment, a half wave plate 3 is arranged between the first laser diode 1-1 and the first aspheric collimating lens 2-1; the first reflecting surface 111 is arranged at 45 degrees with the first aspheric collimating lens 2-1; the second reflecting surface 222 is disposed at 45 degrees with respect to the second aspheric collimating lens 2-2.
The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any changes or substitutions that do not undergo the inventive effort should be construed as falling within the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.
Claims (5)
1. A laser module with high facula quality is characterized in that: comprises a polarization spectroscope (4), a plano-concave cylindrical mirror (5), a plano-convex cylindrical mirror (6) and a focusing lens (7) which are arranged in sequence; the two opposite sides of the polarization spectroscope (4) are respectively provided with a first laser module (100) and a second laser module (200);
the concave surface (5-2) of the plano-concave cylindrical mirror (5) is arranged opposite to the second plane (6-1) of the plano-convex cylindrical mirror (6); the convex surface (6-2) of the plano-convex cylindrical mirror (6) is arranged opposite to the focusing lens (7).
2. The high spot quality laser module of claim 1, wherein: the radius of the concave surface (5-2) of the plano-concave cylindrical mirror (5) is set to be 2mm; the radius of the convex surface (6-2) of the plano-convex cylindrical mirror (6) is set to 8mm.
3. The high spot quality laser module of claim 1, wherein: the first laser module (100) comprises a first laser diode (1-1) and a first aspheric collimating lens (2-1) which are sequentially arranged; the second laser module (200) comprises a second laser diode (1-2) and a second aspheric collimating lens (2-2) which are sequentially arranged;
the polarization spectroscope (4) is provided with a first reflecting surface (111) and a second reflecting surface (222); the first reflecting surface (111) is arranged opposite to the first aspheric collimating lens (2-1); the second reflecting surface (222) is disposed opposite to the second aspherical collimator lens (2-2).
4. A high spot quality laser module according to claim 3, wherein: a half wave plate (3) is arranged between the first laser diode (1-1) and the first aspheric collimating lens (2-1).
5. A high spot quality laser module according to claim 3, wherein: the first reflecting surface (111) and the first aspheric collimating lens (2-1) are arranged at 45 degrees; the second reflecting surface (222) is arranged at 45 degrees with the second aspheric collimating lens (2-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321869406.4U CN220795588U (en) | 2023-07-14 | 2023-07-14 | Laser module with high facula quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321869406.4U CN220795588U (en) | 2023-07-14 | 2023-07-14 | Laser module with high facula quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220795588U true CN220795588U (en) | 2024-04-16 |
Family
ID=90629203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321869406.4U Active CN220795588U (en) | 2023-07-14 | 2023-07-14 | Laser module with high facula quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220795588U (en) |
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2023
- 2023-07-14 CN CN202321869406.4U patent/CN220795588U/en active Active
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