Indication light device and laser processing apparatus
By introducing an indicator light device into the invisible light laser processing equipment, and using a beam combining module and a reflection module to form a coaxial beam combining light, the inconvenience of optical path debugging and material alignment is solved, realizing safe, fast and accurate optical path debugging and processing, and improving processing accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN CREALITY ECOSYSTEM TECHNOLOGY CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-10
AI Technical Summary
Invisible light laser processing equipment presents inconveniences in optical path debugging and material alignment, affecting debugging efficiency and processing quality.
An indicator light device is used to combine an invisible laser beam and a visible indicator beam coaxially through a beam combining module, and then a reflection module is used to reflect the combined beam onto the processing surface, providing a visible indicator beam as a basis for judgment.
It enables safe, fast, and accurate optical path debugging and material alignment, improving processing accuracy and efficiency.
Smart Images
Figure CN224475739U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of laser processing, and in particular to an indicator light device and laser processing equipment. Background Technology
[0002] Laser processing equipment is a device that uses lasers to perform carving, cutting, and other processing operations on materials. Lasers are divided into visible light lasers and invisible light lasers. For visible light laser processing equipment, a low-power beam emitted by the equipment itself can be used as an indicator light. However, for invisible light laser processing equipment, it is impossible to preview the indicator light before laser processing in the same way. This leads to problems such as inconvenience in optical path adjustment and safety concerns, affecting adjustment efficiency. It also results in inaccurate alignment of the processed material, affecting processing quality. Utility Model Content
[0003] This application provides an indicator light device and a laser processing equipment, which can achieve safe, fast and accurate light adjustment, thereby improving processing accuracy and efficiency.
[0004] In a first aspect, the indicator light device provided in the embodiments of this application is used to project a laser beam provided by a first light source emitting module onto a first surface, the indicator light device comprising:
[0005] The second light source emitting module is used to provide an indicator light beam, which is visible light.
[0006] A beam combining module, disposed in the optical path of the laser beam and the indicator beam, is used to coaxially combine the laser beam and the indicator beam into a beam; and
[0007] A reflection module is disposed in the optical path of the combined light beam and is used to reflect the combined light beam onto the first surface.
[0008] In some embodiments, the beam combining module includes:
[0009] The body has a second surface and a third surface disposed opposite to each other in a first direction;
[0010] A transmission layer, formed on the second surface and disposed facing the first light source emitting module, is used to transmit the laser beam; and
[0011] A reflective layer, formed on the third surface and facing the second light source emitting module, is used to reflect the indicator light beam;
[0012] Wherein, the first direction is the normal direction of the reflective surface of the reflective layer.
[0013] In some embodiments, the transmissive layer is a high-transmittance film; and / or, the reflective layer is a high-reflectance film.
[0014] In some embodiments, the emission direction of the laser beam has a 45° angle with the first direction, and the emission direction of the indicator light beam has a 45° angle with the first direction.
[0015] In some implementations, the reflective module includes one or more reflectors.
[0016] In some embodiments, the reflection module includes a first reflector, a second reflector, and a third reflector sequentially disposed on the optical path of the combined beam. The normal direction of the mirror surface of the first reflector is at a 45° angle to the optical axis direction of the combined beam. The normal direction of the mirror surface of the second reflector is perpendicular to the normal direction of the mirror surface of the first reflector. The normal direction of the mirror surface of the third reflector is parallel to the normal direction of the mirror surface of the second reflector and is at a 45° angle to the first surface.
[0017] In some embodiments, the reflection module is used to reflect the combined light onto the first surface in a second direction perpendicular to the first surface.
[0018] In some embodiments, the indicator light device further includes a beam expander module disposed between the beam combiner module and the first light source emitting module, for expanding the laser beam.
[0019] In some embodiments, the indicator light device further includes a focusing module disposed between the reflective module and the first surface, for focusing the combined light beam reflected by the reflective module.
[0020] Secondly, the laser processing equipment provided in the embodiments of this application includes the indicator light device provided in any of the above embodiments, wherein the laser beam is invisible light.
[0021] The beneficial effects of the embodiments of this application are as follows: The indicator light device and laser processing equipment are used to project the laser beam provided by the first light source emitting module onto the first surface. The indicator light device includes a second light source emitting module for providing an indicator light beam, which is visible light; a beam combining module disposed on the optical path of the laser beam and the indicator light beam for making the laser beam and the indicator light beam coaxial to form a beam combining light; and a reflection module disposed on the optical path of the beam combining light for reflecting the beam combining light onto the first surface. In the above manner, the beam combining module makes the laser beam and the indicator light beam coaxial to form a beam combining light. When performing optical path debugging, the indicator light beam coaxial with the laser beam can be used as a judgment basis, which simplifies the optical path debugging steps and realizes safe, fast and accurate light adjustment. When processing the object, the indicator light beam can also be used for alignment, which improves the processing accuracy and processing efficiency. Attached Figure Description
[0022] Figure 1 This is a structural block diagram of the indicator light device according to an embodiment of this application;
[0023] Figure 2 This is a schematic diagram of the structure of the indicator light device according to an embodiment of this application;
[0024] Figure 3 This is a structural block diagram of the indicator light device according to an embodiment of this application;
[0025] Figure 4 This is a structural block diagram of the indicator light device according to an embodiment of this application;
[0026] Figure 5 This is a structural block diagram of the indicator light device according to an embodiment of this application;
[0027] Wherein: 1-First light source emitting module (101-Laser), 2-First surface, 3-Second light source emitting module (301-Indicator light generator), 4-Beam combining module (401-Beam combining mirror, 402-Body (4021-Second surface, 4022-Third surface), 403-Transmission layer, 404-Reflection layer), 5-Reflection module (501-First reflector, 502-Second reflector, 503-Third reflector), 6-Beam expanding module (601-Beam expanding mirror), 7-Focusing module (701-Focusing mirror). Detailed Implementation
[0028] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.
[0029] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
[0031] Please refer to Figure 1This application embodiment provides an indicator light device for projecting a laser beam provided by a first light source emitting module 1 onto a first surface 2. The indicator light device includes a second light source emitting module 3, a beam combining module 4, and a reflection module 5. The second light source emitting module 3 provides an indicator light beam, which is visible light. The beam combining module 4 is disposed in the optical paths of the laser beam and the indicator light beam, and is used to coaxially combine the laser beam and the indicator light beam to form a combined beam. The reflection module 5 is disposed in the optical path of the combined beam, and is used to reflect the combined beam onto the first surface 2.
[0032] In this embodiment, the beam combining module 4 coaxially combines the laser beam and the indicator beam to form a combined beam. During optical path debugging, the indicator beam, which is coaxial with the laser beam, can be used as a judgment criterion, simplifying the optical path debugging steps and achieving safe, fast, and accurate light adjustment. When processing the workpiece, the indicator beam can also be used for alignment, improving processing accuracy and efficiency.
[0033] As an example, please refer to Figure 2 The first light source emitting module 1 includes a laser 101, the second light source emitting module 3 includes an indicator light generator 301, the beam combining module 4 includes a beam combining mirror 401, and the reflection module 5 includes a reflector. The indicator light generator 301 is not in the optical path of the laser 101. The beam combining mirror 401 is located at a certain distance from the exit of the laser 101, and also at a certain distance from the exit of the indicator light generator 301. When the laser beam passes through the beam combining module 4, it maintains its original optical path, i.e., transmission occurs. However, when the indicator light beam encounters the beam combining module 4, it changes its optical path direction, resulting in reflection. Furthermore, the laser beam and the indicator light beam are combined at the beam combining mirror 401 to form a combined beam, which includes a coaxial laser beam and an indicator light beam. The combined beam is reflected by the reflector to the first surface 2.
[0034] In some implementations, the first surface 2 can be a processing table, or the first surface 2 can be a processing surface of the object being processed.
[0035] In some implementations, the wavelength range of the indicator light beam is 380 nanometers to 780 nanometers.
[0036] In some embodiments, the laser beam is invisible light. For example, the wavelength of the laser beam is less than 400 nanometers, or the wavelength of the laser beam is greater than 700 nanometers. As an example, the laser beam can be an ultraviolet laser beam or an infrared laser beam. Laser 101 can be an ultraviolet laser, an infrared fiber laser, or a mid-infrared CO2 (Carbon Dioxide) laser, etc.
[0037] In some implementation methods, please refer to Figure 2The beam combining module 4 includes a body 402, a transmission layer 403, and a reflection layer 404. The body 402 has a second surface 4021 and a third surface 4022, which are disposed opposite to each other in a first direction. The transmission layer 403 is formed on the second surface 4021 and faces the first light source emitting module 1, and is used to transmit a laser beam. The reflection layer 404 is formed on the third surface 4022 and faces the second light source emitting module 3, and is used to reflect an indicator light beam. The first direction is the normal direction of the reflecting surface of the reflection layer 404.
[0038] It is understood that the beam combining module 4 may include a beam combining mirror 401, which may include a body 402, a transmission layer 403, and a reflection layer 404. The second surface 4021 and the third surface 4022 are arranged opposite to each other in the normal direction of the mirror surface of the beam combining mirror 401. That is, the normal direction of the mirror surface of the beam combining mirror 401 is the first direction.
[0039] In one embodiment, the transmissive layer 403 can be deposited on the second surface 4021 of the body 402. The reflective layer 404 can be deposited on the third surface 4022 of the body 402. It should be noted that in other embodiments, the transmissive layer 403 and the reflective layer 404 can also be fixed to the body 402 in other ways, which can be set according to the actual situation, and will not be described in detail here.
[0040] As an example, the transmission layer 403 can be a high-transmittance film. That is, the transmission layer 403 is made of a material with high transmittance to the laser beam of this embodiment. The transmission layer 403 allows the laser beam to maintain high energy and low loss as it passes through, enabling the laser beam to pass through the beam combining module 4 and continue to propagate along the original optical path of the laser beam. In some examples, the laser beam transmittance of the transmission layer 403 is greater than or equal to 95%.
[0041] As an example, the reflective layer 404 can be a high-reflectivity film. That is, the reflective layer 404 is made of a material with high reflectivity to the indicator light beam of this embodiment. The reflective layer 404 is capable of reflecting the indicator light beam, causing the indicator light beam to change its optical path and propagate along an optical path coaxial with the laser beam. In some examples, the reflectivity of the indicator light beam of the reflective layer 404 is greater than or equal to 99%.
[0042] In some implementation methods, please refer to Figure 2The laser beam's emission direction forms a 45° angle with the first direction, meaning the original optical path of the laser beam forms a 45° angle with the first direction. After the laser beam passes through the beam combining module 4, the optical path of the laser beam passing through the beam combining module 4 still forms a 45° angle with the first direction. Similarly, the indicator light beam's emission direction forms a 45° angle with the first direction, meaning the original optical path of the indicator light beam forms a 45° angle with the first direction. Furthermore, the laser beam's emission direction is perpendicular to the indicator light beam's emission direction. After the indicator light beam is reflected by the beam combining module 4, the optical path of the indicator light beam reflected by the beam combining module 4 forms a 45° angle with the first direction and is coaxial with the optical path of the laser beam passing through the beam combining module 4.
[0043] In some implementations, the reflective module 5 may include a reflector. Alternatively, please refer to... Figure 2 The reflection module 5 may include multiple reflectors.
[0044] In some implementation methods, please refer to Figure 2 The reflection module 5 is used to reflect the combined light along a second direction to the first surface 2, and the second direction is perpendicular to the first surface 2. It is understood that in other embodiments, the second direction may not be perpendicular to the first surface 2, and can be set according to the actual situation, which will not be elaborated here.
[0045] As one implementation method, please refer to Figure 2 The reflection module 5 includes a first reflector 501, a second reflector 502 and a third reflector 503, which are sequentially arranged on the optical path of the combined beam.
[0046] For example, please refer to Figure 2 The laser beam emission direction has a 45° angle with the first direction, and the laser beam emission direction is perpendicular to the indicator light beam emission direction. That is, the indicator light beam emission direction has a 45° angle with the first direction. The normal direction of the reflecting surface of the first reflector 501 has a 45° angle with the optical axis of the combined beam. The normal direction of the reflecting surface of the second reflector 502 is perpendicular to the normal direction of the reflecting surface of the first reflector 501. The normal direction of the reflecting surface of the third reflector 503 is parallel to the normal direction of the reflecting surface of the second reflector 502. Furthermore, the reflecting surface of the third reflector 503 has a 45° angle with the first surface 2. The first surface 2 is parallel to the laser beam emission direction, so that the second direction can be perpendicular to the first surface 2. Moreover, the second direction is also perpendicular to the optical path of the laser beam, thereby shortening the distance between the first surface 2 and the light source emission module, making operation easier.
[0047] In some implementation methods, please refer to Figure 3 and Figure 5 The indicator light device also includes a beam expander module 6, which is disposed between the beam combiner module 4 and the first light source emitting module 1. The beam expander module 6 is used to expand the laser beam.
[0048] As an example, please refer to Figure 2 The beam expander module 6 may include a beam expander lens 601, which is not only simple in structure but also capable of effectively expanding the beam.
[0049] In some implementation methods, please refer to Figure 4 and Figure 5 The indicator light device also includes a focusing module 7, which is disposed between the reflection module 5 and the first surface 2. The focusing module 7 is used to focus the combined light reflected by the reflection module 5.
[0050] As an example, please refer to Figure 2 The focusing module 7 includes a focusing lens 701, which is not only simple in structure but also capable of effective focusing.
[0051] As an example, the indicator light device can be applied to laser processing equipment, which can be a device that uses a laser beam to perform processing operations such as engraving and cutting on materials.
[0052] The laser processing equipment of this application includes the indicator light device provided in any of the above embodiments, and the laser beam is invisible light.
[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0054] The above embodiments merely illustrate preferred implementations of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.
Claims
1. An indicator light device, characterized in that, The indicator light device is used to project a laser beam provided by a first light source emitting module onto a first surface, and includes: The second light source emitting module is used to provide an indicator light beam, which is visible light. A beam combining module, disposed in the optical path of the laser beam and the indicator beam, is used to coaxially combine the laser beam and the indicator beam into a beam; and A reflection module is disposed in the optical path of the combined light beam and is used to reflect the combined light beam onto the first surface.
2. The indicator light device as claimed in claim 1, characterized in that, The beam combining module includes: The body has a second surface and a third surface disposed opposite to each other in a first direction; A transmission layer, formed on the second surface and disposed facing the first light source emitting module, is used to transmit the laser beam; and A reflective layer, formed on the third surface and facing the second light source emitting module, is used to reflect the indicator light beam; Wherein, the first direction is the normal direction of the reflective surface of the reflective layer.
3. The indicator light device as described in claim 2, characterized in that, The transmissive layer is a high-transmittance film; and / or, the reflective layer is a high-reflectance film.
4. The indicator light device as described in claim 2, characterized in that, The laser beam has a 45° angle between its emission direction and the first direction, and the indicator beam has a 45° angle between its emission direction and the first direction.
5. The indicator light device as claimed in claim 1, characterized in that, The reflection module includes one or more reflectors.
6. The indicator light device as claimed in claim 5, characterized in that, The reflection module includes a first reflector, a second reflector, and a third reflector sequentially disposed on the optical path of the combined beam. The normal direction of the mirror surface of the first reflector has a 45° angle with the optical axis direction of the combined beam. The normal direction of the mirror surface of the second reflector is perpendicular to the normal direction of the mirror surface of the first reflector. The normal direction of the mirror surface of the third reflector is parallel to the normal direction of the mirror surface of the second reflector and has a 45° angle with the first surface.
7. The indicator light device as claimed in claim 1, characterized in that, The reflection module is used to reflect the combined light onto the first surface along a second direction, the second direction being perpendicular to the first surface.
8. The indicator light device as claimed in claim 1, characterized in that, The indicator light device further includes a beam expander module, which is disposed between the beam combiner module and the first light source emitting module, and is used to expand the laser beam.
9. The indicator light device as claimed in claim 1, characterized in that, The indicator light device further includes a focusing module, which is disposed between the reflection module and the first surface, and is used to focus the combined light reflected by the reflection module.
10. A laser processing device, characterized in that, The laser processing equipment includes an indicator light device as described in any one of claims 1-9, wherein the laser beam is invisible light.