Laser module capable of filtering
By setting up adjustment components and filter labia in the laser module, the problem that traditional laser modules cannot adjust the size of the light spots and filter the mixed light have been solved. Essence
Patent Information
- Application Number
- CN202420198159.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-27
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-01-27
AI Technical Summary
Traditional laser modules do not have the ability to adjust the size of the spot and are not convenient to filter out the dot light and tail of the spot, especially when higher collimation or smaller focusing spots are required.
A filtering laser module is designed to set up a regulatory component inside the shell, including the first quasi -lens, the first column facial mirror, the second column mirror, and the second quasi -straight lens. Realize the adjustment of the light spots and the filtering of light and tail.
The focus and size adjustment of the light spots can effectively filter the miscellaneous light and tail, expand the range of the device, and improve the efficiency of use.
Smart Images
Figure CN222422749U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lasers, in particular to a filterable laser module. Background Art
[0002] Semiconductor diode lasers are the most practical and important type of laser. They are small in size, long in life, and can be pumped by a simple current injection method. Their operating voltage and current are compatible with integrated circuits, so they can be monolithically integrated with them. They can also be directly current modulated at frequencies up to GHz to obtain high-speed modulated laser output. Due to these advantages, semiconductor lasers have been widely used in laser communication optical storage, gyro laser printing, laser cutting, ranging, and radar.
[0003] In recent years, laser engraving and cutting has seen significant growth in applications due to its high speed and high quality. Laser cutting utilizes a focused, high-power density laser beam to illuminate a workpiece, causing it to rapidly melt, vaporize, or reach a ignition point in a specific area, completing the cut.
[0004] During the laser module preparation process, the laser needs to be focused. Since the light-emitting point of the semiconductor laser is generally bar-shaped and has relatively large astigmatism, focusing through a single lens will make the slow-axis divergence angle relatively large. In addition, the existing laser is not convenient for filtering out the stray light and tail of the light spot, and it is difficult to use when higher collimation or a smaller focused spot is required. Utility Model Content
[0005] 1. Technical Problems Solved
[0006] The utility model provides a filterable laser module, which has the advantages of being able to achieve focusing and adjust the size of the light spot, so as to solve the problems that traditional laser modules do not have the function of adjusting the light spot size and are not convenient for filtering out stray light and tailing of the light spot, and are difficult to use when higher collimation or a smaller focused light spot is required.
[0007] 2. Technical Solution
[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a filterable laser module, comprising a shell and a laser diode, a cavity being transversely opened inside the shell, and the cavity passing through the shell, the laser diode being fixedly mounted on one side of the shell, an adjustment component being provided inside the cavity, the adjustment component comprising a first collimating lens, the first collimating lens being fixedly mounted on one side of the laser diode, a first cylindrical mirror being fixedly mounted on one side of the first collimating lens, a second cylindrical mirror being provided on one side of the first cylindrical mirror, and a second collimating lens being provided on the other side of the shell, the adjustment component being convenient for adjusting the light spot, the first cylindrical mirror and the second cylindrical mirror being plano-convex cylindrical mirrors or bi-convex cylindrical mirrors.
[0009] As a preferred technical solution of the present invention, the laser diode is coaxial with the adjustment component, so that the light of the laser diode can pass through the adjustment component.
[0010] As an optimal technical solution of the present invention, a filter aperture is provided on one side of the second cylindrical mirror, and the filter aperture is located between the second collimating lens and the second cylindrical mirror. The filter aperture is set at the intersection of the fast / slow axes of the light spot. The filter aperture is convenient for filtering stray light and light spot tailing.
[0011] As a preferred technical solution of the present invention, a lens frame is fixedly provided on the outside of the second collimating lens, and the lens frame is threadedly connected to the housing, and the lens frame facilitates the installation and adjustment of the second collimating lens.
[0012] As a preferred technical solution of the present invention, a mounting hole is provided on one side of the outer wall of the shell, and a thread is provided on the inner wall of the mounting hole, so that the mounting hole facilitates the installation of the device.
[0013] As a preferred technical solution of the present invention, a cover plate is provided on the upper part of the shell, the cover plate corresponds to the position of the cavity, the cover plate is snap-connected with the shell, and the cover plate can prevent dust from entering the interior of the shell and effectively protect the adjustment component.
[0014] As a preferred technical solution of the present invention, the filter aperture is a hole-type aperture or a side aperture.
[0015] 3. Beneficial Effects
[0016] The advantages of this utility model compared with the prior art are:
[0017] By arranging a first collimating lens and a first cylindrical mirror in front of the laser diode, the first collimating lens and the first cylindrical mirror can focus on the fast axis direction of the light spot. By arranging a second cylindrical mirror and a second collimating lens on one side of the first cylindrical mirror, the second cylindrical mirror can focus on the slow axis direction of the light. Through mutual cooperation with the second collimating lens, the device can achieve both focusing of the device and adjustment of the size of the light spot. By arranging a filter aperture on one side of the second cylindrical mirror, stray light and tailing of the light spot can be filtered, thereby making the device more widely used and improving the efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 This is a top view of the overall structure of the utility model;
[0020] Figure 3 It is a cross-sectional view of the overall structure of the utility model.
[0021] Figure numerals: 1. Shell; 2. Laser diode; 3. Cavity; 4. Adjustment assembly; 41. First collimating lens; 42. First cylindrical mirror; 43. Second cylindrical mirror; 44. Second collimating lens; 5. Filter aperture; 6. Mirror frame; 7. Cover plate; 8. Mounting hole. DETAILED DESCRIPTION
[0022] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.
[0024] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0026] The present invention will now be further described with reference to the accompanying drawings.
[0027] Combined with attachment Figure 1-3 The utility model discloses a filterable laser module, including a shell 1 and a laser diode 2. A cavity 3 is horizontally opened inside the shell 1, and the cavity 3 passes through the shell 1. The laser diode 2 is fixedly mounted on one side of the shell 1. An adjustment component 4 is provided inside the cavity 3. The adjustment component 4 includes a first collimating lens 41. The first collimating lens 41 is fixedly mounted on one side of the laser diode 2. A first cylindrical mirror 42 is fixedly mounted on one side of the first collimating lens 41. A second cylindrical mirror 43 is provided on one side of the first cylindrical mirror 42. A second collimating lens 44 is provided on the other side of the shell 1. The adjustment component 4 facilitates the adjustment of the light spot.
[0028] Specifically, the laser diode 2 is coaxial with the adjustment component 4, and a filter aperture 5 is provided on one side of the second cylindrical mirror 43. The filter aperture 5 is located between the second collimating lens 44 and the second cylindrical mirror 43. The filter aperture 5 is convenient for filtering stray light and light spot tailing. A mirror holder 6 is fixedly provided on the outside of the second collimating lens 44. The mirror holder 6 is threadedly connected to the shell 1. The mirror holder 6 facilitates the installation and adjustment of the second collimating lens 44. A mounting hole 8 is provided on one side of the outer wall of the shell 1. The inner wall of the mounting hole 8 is provided with a thread. The mounting hole 8 facilitates the installation of the device. A cover plate 7 is provided on the upper part of the shell 1. The cover plate 7 corresponds to the position of the cavity 3. The cover plate 7 can prevent dust from entering the interior of the shell 1 and effectively protect the adjustment component 4. The filter aperture 5 is a hole-type aperture or a side aperture.
[0029] The working principle and usage process of the present invention are as follows: when in use, first open the cover 7, adjust the light spot of LD2 to collimation through the first collimating lens 41, then place the first cylindrical mirror 42 on the optical path of the laser diode 2, and focus the light in the fast axis direction of the laser diode 2 through the first cylindrical mirror 42, place the second cylindrical mirror 43 on the optical path of the laser diode 2, and focus the light in the slow axis direction of the laser diode 2 through the second cylindrical mirror 43, then place the filter diaphragm 5 on one side of the second cylindrical mirror 43, and filter the stray light and tailing of the light spot through the filter diaphragm 5, and finally install the lens frame 6 with the second collimating lens 44 on the other side of the shell 1 through threads, and the lens frame 6 can be rotated to make the second collimating lens 44 quickly adjust the focal length and collimation of the light spot in the fast / slow axis direction, and through the mutual cooperation with the first cylindrical mirror 42 and the second cylindrical mirror 43, the device can realize focusing and adjusting the size of the light spot, so that it can be adjusted as needed during daily use, so that the device can meet daily usage needs.
[0030] The present invention and its embodiments have been described, but such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the present invention and, without departing from the purpose of the present invention, designs structures and embodiments similar to the technical solution without creatively designing them, they shall fall within the scope of protection of the present invention.
Claims
1. A filterable laser module, comprising a housing (1) and a laser diode (2), characterized in that: A cavity (3) is transversely provided inside the shell (1), and the cavity (3) passes through the shell (1); the laser diode (2) is fixedly mounted on one side of the shell (1); and an adjustment component (4) is provided inside the cavity (3); The adjustment component (4) comprises a first collimating lens (41), the first collimating lens (41) being fixedly mounted on one side of the laser diode (2), a first cylindrical mirror (42) being fixedly mounted on one side of the first collimating lens (41), a second cylindrical mirror (43) being arranged on one side of the first cylindrical mirror (42), a second collimating lens (44) being arranged on the other side of the housing (1), a filtering diaphragm (5) being arranged on one side of the second cylindrical mirror (43), and the filtering diaphragm (5) being located between the second collimating lens (44) and the second cylindrical mirror (43).
2. A filterable laser module according to claim 1, characterized in that: The laser diode (2) and the adjustment component (4) are coaxially arranged.
3. The filterable laser module according to claim 1, characterized in that: A lens frame (6) is fixedly provided on the outside of the second collimating lens (44), and the lens frame (6) is threadedly connected to the housing (1).
4. The filterable laser module according to claim 1, characterized in that: A mounting hole (8) is provided on one side of the outer wall of the housing (1), and a thread is provided on the inner wall of the mounting hole (8).
5. The filterable laser module according to claim 1, characterized in that: A cover plate (7) is provided on the upper part of the shell (1); the position of the cover plate (7) corresponds to the position of the cavity (3); and the cover plate (7) is snap-connected to the shell (1).
6. The filterable laser module according to claim 1, characterized in that: The filtering aperture (5) is a type of side aperture in a hole-type aperture.