CN222094992U - 20W blue light laser engraving module for scanning galvanometer marking system - Google Patents
20W blue light laser engraving module for scanning galvanometer marking system Download PDFInfo
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- CN222094992U CN222094992U CN202420581678.2U CN202420581678U CN222094992U CN 222094992 U CN222094992 U CN 222094992U CN 202420581678 U CN202420581678 U CN 202420581678U CN 222094992 U CN222094992 U CN 222094992U
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- 238000010147 laser engraving Methods 0.000 title abstract description 16
- 230000010287 polarization Effects 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 239000011368 organic material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
本实用新型公开了一种用于扫描振镜打标系统的20W蓝光激光雕刻模组，包括四路激光二极管；非球面准直镜安装在每个激光二极管的输出端；第一平面反射镜安装在每个非球面准直镜的输出端；偏振分光片安装在其中一列第一平面反射镜的输出端；第二平面反射镜安装在另一列第一平面反射镜的输出端；半波片安装在偏振分光片与第二平面反射镜之间；第一平凹柱面镜及第二平凹柱面镜安装在偏振分光片的输出端；还包括平凸透镜。通过4路激光两两并排后进行偏振合束，实现了Y方向光束宽度减半，有效减少了振镜尺寸和重量，提升扫描速度和精度，并采用两个柱面镜对光束垂直和水平方向分别进行扩束，减少了焦点畸变，实现了更加集中的能量分布，优化了雕刻效果。
The utility model discloses a 20W blue laser engraving module for a scanning galvanometer marking system, including four laser diodes; an aspheric collimator is installed at the output end of each laser diode; a first plane reflector is installed at the output end of each aspheric collimator; a polarization beam splitter is installed at the output end of one column of the first plane reflectors; a second plane reflector is installed at the output end of another column of the first plane reflectors; a half-wave plate is installed between the polarization beam splitter and the second plane reflector; a first plano-concave cylindrical mirror and a second plano-concave cylindrical mirror are installed at the output end of the polarization beam splitter; and a plano-convex lens is also included. By polarizing and combining the four laser beams in pairs, the Y-direction beam width is halved, the size and weight of the galvanometer are effectively reduced, the scanning speed and accuracy are improved, and two cylindrical mirrors are used to expand the beam in the vertical and horizontal directions respectively, which reduces focal distortion, achieves more concentrated energy distribution, and optimizes the engraving effect.
Description
Technical Field
The utility model relates to a laser engraving module, in particular to a 20W blue laser engraving module for a scanning galvanometer marking system.
Background
In recent years, laser engraving technology has been widely used in a variety of industries, particularly in the field of engraving and cutting of organic materials. Blue laser engraving modules have become ideal choices for processing these materials due to their specific wavelength and energy distribution characteristics. Blue laser has better absorption efficiency and fine processing capability, so that the blue laser is excellent in organic material processing. However, in the field of engraving and processing of metal materials, the effect of blue laser modules is relatively poor. This is mainly due to the high reflectivity of the metal material to blue laser light and the low absorptivity, resulting in limited application in metal engraving.
The blue laser engraving equipment in the current market mainly faces two main problems, namely, relatively slow scanning speed and relatively small scanning breadth. These limitations are mainly due to device power and spot control technology limitations. Conventional laser engraving apparatuses typically use a single laser source, which limits the increase in laser power to some extent, thereby affecting scanning speed and processing efficiency. Meanwhile, the existing laser engraving equipment has limitation in the light path design, so that the scanning breadth is limited.
Under the background, in order to solve the limitations of the prior art, the utility model provides a novel 20W blue laser engraving module which adopts a four-path laser diode parallel beam combining technology, can obviously improve laser power, improves the divergence angle control of laser through an innovative light path, thereby improving scanning speed and expanding scanning breadth, bringing new breakthrough to the fields of organic material laser engraving and cutting, and simultaneously opening up a new direction for the development of the blue laser engraving technology.
Disclosure of utility model
In order to solve the problems, the utility model provides a 20W blue laser engraving module for a scanning galvanometer marking system, which can effectively solve the defects in the prior art.
The utility model is realized by the following technical scheme that the 20W blue laser engraving module for the scanning galvanometer marking system comprises:
four-way laser diodes, which are arranged in parallel two by two;
The aspheric collimating mirror is arranged at the output end of each laser diode and is used for collimating the light rays emitted by the laser diodes;
The first plane reflecting mirrors are arranged at the output end of each aspheric collimating mirror, and the light beams emitted by the two laser diodes in the same row are combined side by side through the first plane reflecting mirrors;
the polarizing beam splitter is arranged at the output end of one row of first plane reflectors, and one row of light beams passes through the polarizing beam splitter in a transmission way;
The second plane reflector is arranged at the output end of the other column of the first plane reflectors, and the column of light beams are reflected to the polarization beam splitter by the second plane reflector;
The half wave plate is arranged between the polarization beam splitter and the second plane reflector, the polarization direction of the light beam output by the second plane reflector is rotated by 90 degrees after passing through the half wave plate, the light beam is reflected by the polarization beam splitter, and the two laser beams can be completely overlapped into one beam by adjusting the angle and the position of the polarization beam splitter;
The first plano-concave cylindrical mirror and the second plano-concave cylindrical mirror are arranged at the output end of the polarization adjustment beam splitter and are used for respectively expanding beams in two directions;
and the plano-convex lens is arranged at the output ends of the first plano-concave cylindrical mirror and the second plano-concave cylindrical mirror and is used for collimating the expanded light rays.
The utility model has the advantages that the utility model adopts the mode of combining the beams of 4 laser in pairs and then combining the beams of polarization, and compared with the mode of combining the beams of 4 laser directly in pairs, the beam width in the Y direction is reduced by half, the size and the weight of a matched vibrating mirror can be reduced, and the scanning speed and the scanning precision are improved;
The two cylindrical mirrors are used for respectively expanding the light beams in two directions, and compared with the whole light beam expansion of the spherical beam expander, the spherical beam expander has the advantages that the distortion of the focus is smaller and the energy distribution is more concentrated.
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 the overall structure of the present utility model;
FIG. 2 is a schematic diagram of the front structure of the present utility model;
FIG. 3 is a top view of the present utility model;
Reference numerals illustrate:
1. Four paths of laser diodes, an aspheric collimating mirror, a first plane mirror, a polarizing beam splitter, a second plane mirror, a half wave plate, a first plano-concave cylindrical mirror, a second plano-concave cylindrical mirror and a plano-convex lens, wherein the aspheric collimating mirror comprises a first plane mirror, a polarizing beam splitter, a second plane mirror, a half wave plate, a first plano-concave cylindrical mirror, a second plano-concave cylindrical mirror and a plano-convex lens.
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.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
As shown in fig. 1 to 3, a 20W blue laser engraving module for a scanning galvanometer marking system of the present utility model includes:
four-way laser diodes 1, wherein the four-way laser diodes 1 are arranged in parallel two by two;
The aspheric collimating mirror 2 is arranged at the output end of each laser diode and is used for collimating the light rays emitted by the laser diodes;
The first plane reflector 3 is arranged at the output end of each aspheric collimating mirror 2, and the first plane reflector 3 is used for combining the light beams emitted by two laser diodes in the same row side by side;
the polarizing beam splitter 4 is arranged at the output end of one row of the first plane mirrors 3, and one row of light beams passes through the polarizing beam splitter 4 in a transmission way;
A second plane mirror 5 installed at an output end of another column of the first plane mirrors 3, the column of light beams being reflected to the polarization beam splitter 4 by the second plane mirror 5;
The half-wave plate 6 is arranged between the polarization beam splitter 4 and the second plane reflector 5, the polarization direction of the light beam output by the second plane reflector 5 is rotated by 90 degrees after passing through the half-wave plate 6 and is reflected by the polarization beam splitter, and two laser beams can be completely overlapped into one beam by adjusting the angle and the position of the polarization beam splitter 4;
The first plano-concave cylindrical mirror 7 and the second plano-concave cylindrical mirror 8 are arranged at the output end of the polarization adjustment beam splitter 4 and are used for respectively expanding beams in two directions;
And the plano-convex lens (9) is arranged at the output ends of the first plano-concave cylindrical mirror 7 and the second plano-concave cylindrical mirror 8 and is used for collimating the expanded light rays.
The functional modules are described as follows:
The laser diode emits light beams after fast axis compression inside the laser diode, and the divergence angle of the light beams is about 7 degrees multiplied by 1 degree.
The aspherical collimator 2. The light beam is collimated by the aspherical collimator 2 so that the width of the light beam is about 3 x 0.35mm and the divergence angle is about 3 x 4mrad.
The planar mirrors combine two laser diode beams in the same column side by the planar mirrors, and the beam width becomes about 3×0.8mm.
Polarization beam splitter 4 and half-wave plate 6 processing:
One of the light beams is directly transmitted through the polarization beam splitter 4.
The other beam is reflected by the plane mirror, then passes through the half-wave plate 6, the polarization direction of the beam is rotated by 90 degrees, and finally is reflected by the polarization beam splitter 4.
The light beams overlap, namely, the two laser beams are completely overlapped into one beam by adjusting the angle and the position of the polarization beam splitter 4.
And (3) expanding beams by using the plano-concave cylindrical mirrors, namely expanding the beams in two directions by using the two plano-concave cylindrical mirrors after beam combination.
The plano-convex lens 9 collimates the light beam, and the width of the emergent light beam is about 13.5X4.5 mm, and the divergence angle is about 2.5X1.5 mrad.
And finally, focusing by using a field lens with the focal length of 300mm, wherein the focal point size is about 0.2 multiplied by 0.2mm.
The utility model adopts an innovative structure of carrying out polarization beam combination after four laser paths are arranged side by side, and compared with the traditional four-path direct side by side beam combination method, the utility model obviously reduces half of the width of the light beam in the Y direction. The size and the weight of the matched vibrating mirror are reduced, so that the scanning speed and the scanning precision are improved, the vertical divergence angle and the horizontal divergence angle of the light beam are respectively optimized and expanded through the two cylindrical mirrors, focal point distortion is reduced, more concentrated energy distribution is realized, and the engraving precision and efficiency are greatly improved.
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 (1)
1. A20W blue light laser sculpture module for scanning galvanometer marking system, its characterized in that includes:
Four-way laser diodes (1), wherein the four-way laser diodes (1) are arranged in parallel in pairs;
The aspheric collimating mirror (2) is arranged at the output end of each laser diode and is used for collimating the light rays emitted by the laser diodes;
The first plane reflecting mirrors (3) are arranged at the output end of each aspheric collimating mirror (2), and the light beams emitted by two laser diodes in the same row are combined side by side through the first plane reflecting mirrors (3);
The polarizing beam splitter (4) is arranged at the output end of one row of first plane reflectors (3), and one row of light beams passes through the polarizing beam splitter (4) in a transmission way;
A second plane mirror (5) mounted at the output end of the other column of the first plane mirrors (3), the column of light beams being reflected by the second plane mirror (5) to the polarizing beam splitter (4);
The half-wave plate (6) is arranged between the polarization beam splitter (4) and the second plane reflector (5), the polarization direction of the light beam output by the second plane reflector (5) is rotated by 90 degrees after passing through the half-wave plate (6) and is reflected by the polarization beam splitter, and the two laser beams can be completely overlapped into one beam by adjusting the angle and the position of the polarization beam splitter (4);
The first plano-concave cylindrical mirror (7) and the second plano-concave cylindrical mirror (8) are arranged at the output end of the polarization adjustment beam splitter (4) and are used for respectively expanding beams in two directions;
And the plano-convex lens (9), wherein the plano-convex lens (9) is arranged at the output ends of the first plano-concave cylindrical mirror (7) and the second plano-concave cylindrical mirror (8) and is used for collimating the light after beam expansion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420581678.2U CN222094992U (en) | 2024-03-25 | 2024-03-25 | 20W blue light laser engraving module for scanning galvanometer marking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420581678.2U CN222094992U (en) | 2024-03-25 | 2024-03-25 | 20W blue light laser engraving module for scanning galvanometer marking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222094992U true CN222094992U (en) | 2024-12-03 |
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ID=93629376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420581678.2U Active CN222094992U (en) | 2024-03-25 | 2024-03-25 | 20W blue light laser engraving module for scanning galvanometer marking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222094992U (en) |
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- 2024-03-25 CN CN202420581678.2U patent/CN222094992U/en active Active
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