Beam combiner adjusting device
By designing a beam combiner adjustment device, the problem of the non-adjustable beam combiner angle was solved, achieving efficient focusing of the laser beam and improving system performance.
Patent Information
- Application Number
- CN202423188658.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2034-12-24
AI Technical Summary
The existing beam combiner angle is not adjustable, which leads to reduced laser beam focus and energy dispersion, affecting the accuracy and efficiency of the optical system.
A beam combiner adjustment device was designed, including a base and a beam combiner frame. The angle of the beam combiner can be adjusted by adjusting the cooperation of the central axis and the eccentric axis. Precise angle adjustment is achieved by using adjusting screws and standard position positioning blocks.
The adjustable angle of the beam combiner lens was achieved, which improved the focusing effect of the laser beam and the overall performance of the system, meeting the output requirements of the optical system.
Smart Images
Figure CN223966778U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optomechanical technology, specifically to a beam combiner adjustment device that can improve the accuracy and efficiency of optical systems. Background Technology
[0002] In laser sources and optical systems, beam combiners are used to combine two or more laser beams onto a single optical path. This combining does not change the beam quality, but it doubles the output power, thus significantly increasing the brightness of the output beam. In practical applications, errors in optical path calculations, machining processes, and assembly processes can cause deviations in the installation angle of the beam combiner. Therefore, it is necessary to adjust the angle of the beam combiner to compensate for the impact of this deviation on the optical system. In existing technologies, beam combiners are generally non-adjustable, which may lead to reduced laser beam focus and energy dispersion, thereby affecting the system's accuracy and efficiency.
[0003] Therefore, the adjustment structure of the beam combiner is crucial and an indispensable part of laser equipment and optical systems. This is because it directly affects the focusing effect of the laser beam, energy density, and the overall performance of the system. Utility Model Content
[0004] This invention addresses the technical problem that the angle of beam combiners is generally not adjustable by providing a beam combiner adjustment device.
[0005] This utility model is achieved by the following technical solution: a beam combiner adjustment device, including a base and a beam combiner frame;
[0006] The base has a box-like structure with an opening at the top and adjustment center shaft holes on both the left and right side panels. One of the side panels also has a first adjustment cavity and a second adjustment cavity. The first and second adjustment cavities are respectively arranged on the upper front side and the lower rear side of the adjustment center shaft holes on the side panel. The top of the first and second adjustment cavities has a first adjustment screw hole and a second adjustment screw hole, respectively, and is equipped with an adjustment screw. The first and second adjustment cavities are connected to the inner cavity of the base.
[0007] The center of the beam-combining lens frame is the mounting position for installing the beam-combining lens. The middle positions of the two opposite sides are respectively provided with a first adjustment center axis and a second adjustment center axis. One side is also provided with a first adjustment eccentric axis and a second adjustment eccentric axis corresponding to the first adjustment cavity and the second adjustment cavity, respectively.
[0008] Furthermore, it also includes a standard position positioning block; the standard position positioning block is an L-shaped structure formed by connecting a horizontal plate and a vertical plate, and a through hole corresponding to the adjustment center shaft hole is opened on one of the plates; a stepped window matching the direction of the first adjustment cavity and the second adjustment cavity is opened on the side plate opposite to the adjustment cavity, and the adjustment center shaft hole of the side plate is located below the corner of the step, and the corner of the step is a 45-degree bevel.
[0009] Furthermore, the front panel of the base also has an opening.
[0010] Furthermore, both the first and second adjustment cavities are box structures mounted on the base. The top of the box structure has a screw hole, and the side of the box that connects to the base is connected to the interior of the base. The width of the box is greater than the width or outer diameter of the first and second adjustment eccentric shafts.
[0011] Furthermore, the center of the first adjustment cavity and the base connection surface, the center shaft hole of the side panel adjustment center, and the center of the second adjustment cavity and the base connection surface are located on the same straight line.
[0012] The advantages of this utility model compared with the prior art are as follows:
[0013] (1) Existing beam combiners are directly fixed to structural components and cannot be adjusted; this utility model adds an adjustable structure for adjustment based on the existing one.
[0014] (2) When matched with other equipment, the angle of the beam combiner can be adjusted on the whole machine to meet its output requirements. Attached Figure Description
[0015] Figure 1 This utility model presents a schematic diagram of the first angle structure of the beam-combining lens adjustment device.
[0016] Figure 2 This is a schematic diagram of the second angle structure of the beam-combining lens adjustment device of this utility model.
[0017] Figure 3 Exploded view of the screws of the beam-combining lens adjustment device of this utility model.
[0018] Figure 4 Schematic diagram of the combined eyeglass frame of this utility model.
[0019] Figure 5 This is a side view of the beam-combining lens adjustment device of this utility model.
[0020] Figure 6 for Figure 5 AA section view.
[0021] 1. Base; 101. First adjusting screw hole; 102. Second adjusting screw hole; 103. Adjusting center axis hole; 104. First adjusting cavity; 105. Second adjusting cavity; 2. Beam-combining lens frame; 201. First adjusting center axis; 202. Second adjusting center axis; 203. First adjusting eccentric axis; 204. Second adjusting eccentric axis; 3. Adjusting screw; 4. Standard position positioning block; 5. Beam-combining lens. Detailed Implementation
[0022] Example 1: A beam combiner adjustment device, comprising a base 1 and a beam combiner frame 2;
[0023] like Figure 1 , 3 As shown, the base 1 has a box-like structure with an opening at the top and adjustment center shaft holes 103 on both the left and right side panels. One side panel also has a first adjustment cavity 104 and a second adjustment cavity 105. The first adjustment cavity 104 and the second adjustment cavity 105 are respectively arranged on the upper front side and lower rear side of the adjustment center shaft holes 103 on the side panel. The tops of the first adjustment cavity 104 and the second adjustment cavity 105 have first adjustment screw holes 101 and second adjustment screw holes 102, respectively, and are equipped with adjustment screws 3. The first adjustment cavity 104 and the second adjustment cavity 105 are connected to the inner cavity of the base 1.
[0024] like Figure 4 As shown, the center of the beam-combining lens frame 2 is the mounting position for mounting the beam-combining lens 5. A first adjustment center shaft 201 and a second adjustment center shaft 202 are respectively located at the midpoint of two opposite sides. One side also has a first adjustment eccentric shaft 203 and a second adjustment eccentric shaft 204 corresponding to the first adjustment cavity 104 and the second adjustment cavity 105, respectively. The width of the beam-combining lens frame 2 is smaller than the inner cavity of the base 1, allowing sufficient margin for easy installation and mating of the adjustment eccentric shafts with the adjustment center shaft holes.
[0025] The beam-combining frame 2 can be inserted into the base through the top opening (or it can be inserted obliquely through the side opening or the front panel opening in embodiments 2 and 3, facilitating installation into the adjustment center shaft hole and adjustment cavity). The first adjustment eccentric shaft 203 and the second adjustment eccentric shaft 204 are respectively inserted into the first adjustment cavity 104 and the second adjustment cavity 105. The first adjustment center shaft 201 and the second adjustment center shaft 202 are installed in the adjustment center shaft holes 103 on the left and right sides of the base. The tilt angle of the beam-combining frame 2 can be adjusted by adjusting the stroke of the two adjustment screws 3.
[0026] Example 2 also includes a standard position positioning block 4; the standard position positioning block 4 is an L-shaped structure formed by connecting a horizontal plate and a vertical plate, and a through hole corresponding to the adjustment center shaft hole 103 is opened on one of the plate surfaces; a stepped window is opened on the side plate opposite to the adjustment cavity, which matches the direction of the first adjustment cavity 104 and the second adjustment cavity 105 (so that the adjustment of the adjustment screw can be coordinated with the standard position positioning block), and the adjustment center shaft hole 103 of the side plate is located below the corner of the step, and the corner of the step is a 45-degree bevel.
[0027] like Figure 2 , 5 As shown in Figure 6, the standard position positioning block 4 is used to position the combined lens frame 2 at a standard 45° tilt position. Specifically, the standard position positioning block 4 is snapped onto the 45° inclined side of the stepped window. The through hole of the standard position positioning block 4 corresponds to the adjustment center shaft hole 103. One adjustment center shaft of the combined lens frame 2 passes through the adjustment center shaft hole 103 and the through hole. At this time, the adjustment screw is adjusted so that the combined lens frame 2 is tightly attached to one panel of the standard position positioning block 4. In this way, the combined lens frame 2 is positioned at the standard angle.
[0028] Example 3: The front panel of the base 1 also has an opening; the first adjustment cavity 104 and the second adjustment cavity 105 are both box structures installed on the base 1. The top of the box structure has a screw hole. The side of the box structure connected to the base 1 is through the interior of the base 1. The width of the box is greater than the width or outer diameter of the first adjustment eccentric shaft 203 and the second adjustment eccentric shaft 204. The center of the connection surface between the first adjustment cavity 104 and the base 1, the center shaft hole 103 of the side panel adjustment center, and the center of the connection surface between the second adjustment cavity 105 and the base 1 are on the same straight line.
[0029] Since the movement trajectories of the first adjusting eccentric shaft 203 and the second adjusting eccentric shaft 204 are arcs when the frame 2 rotates, the internal width of the housing needs to be greater than the outer diameter or width of the adjusting eccentric shaft to provide a certain rotation space for the adjusting eccentric shaft. Of course, since the angle adjustment in this utility model is all fine adjustment, this space generally does not need to be too large. It is mainly enough to ensure that the adjusting screw and the adjusting eccentric shaft are in tight contact.
[0030] In practical applications, this utility model has the following specific embodiments.
[0031] In one specific embodiment, the assembly steps of the beam combiner adjustment device include: first, fixing the beam combiner 5 to the beam combiner frame 2 with glue to ensure stable installation; second, assembling the assembled beam combiner frame assembly according to... Figure 2As shown, insert the base 1 from one side of the standard position positioning block 4. Note that the first adjustment center shaft 201 should be pushed into the adjustment center shaft hole 103. Then, use the standard position positioning block 4 for angle positioning. Next, screw the two adjustment screws 3 into the first adjustment screw hole 101 and the second adjustment screw hole 102 respectively, and tighten them. Then, remove the standard position positioning block 4. At this time, the beam combiner adjustment device is in the standard initial state.
[0032] In one specific embodiment, the adjustment steps of the beam combiner adjustment device include: First, installing the assembled beam combiner adjustment device into the required optical system. The optical system already has a collimating light source for reference when adjusting the beam combiner. Second, turning one adjustment screw out a certain distance and turning the other adjustment screw in by the same distance. At this time, the beam combiner frame 2 will rotate around the first adjustment center axis 201 and the second adjustment center axis 202, thereby adjusting the angle of the beam combiner. The operator can make several fine adjustments as needed, and after reaching the desired optimal state, gently tighten the adjustment screw 3.
Claims
1. A beam combiner adjustment device, characterized in that, Includes a base (1) and a combined frame (2); The base (1) is a box structure with an opening at the top and adjustment center shaft holes (103) on both the left and right side panels; a first adjustment cavity (104) and a second adjustment cavity (105) are also provided on one of the side panels; the first adjustment cavity (104) and the second adjustment cavity (105) are respectively arranged on the upper front side and the lower rear side of the adjustment center shaft hole (103) on the side panel; the top of the first adjustment cavity (104) and the second adjustment cavity (105) are respectively provided with a first adjustment screw hole (101) and a second adjustment screw hole (102), and are equipped with adjustment screws (3); the first adjustment cavity (104) and the second adjustment cavity (105) are connected to the inner cavity of the base (1); The center of the beam-combining lens frame (2) is the mounting position for mounting the beam-combining lens (5). The middle positions of the two opposite sides are respectively provided with a first adjustment center axis (201) and a second adjustment center axis (202). One side is also provided with a first adjustment eccentric axis (203) and a second adjustment eccentric axis (204) corresponding to the first adjustment cavity (104) and the second adjustment cavity (105), respectively.
2. The beam combiner adjustment device as described in claim 1, characterized in that, It also includes a standard position positioning block (4); the standard position positioning block (4) is an L-shaped structure formed by connecting a horizontal plate and a vertical plate, and a through hole corresponding to the adjustment center shaft hole (103) is opened on one of the plates; a stepped window matching the direction of the first adjustment cavity (104) and the second adjustment cavity (105) is opened on the side plate opposite to the adjustment cavity, and the adjustment center shaft hole (103) of the side plate is located below the corner of the step, and the corner of the step is a 45-degree bevel.
3. A beam combiner adjustment device as described in claim 1 or 2, characterized in that, The front panel of the base (1) also has an opening.
4. A beam combiner adjustment device as described in claim 1 or 2, characterized in that, The first adjustment cavity (104) and the second adjustment cavity (105) are both box structures installed on the base (1). The top of the box structure has a screw hole. The side of the box that is connected to the base (1) is connected to the interior of the base (1). The width of the box is greater than the width or outer diameter of the first adjustment eccentric shaft (203) and the second adjustment eccentric shaft (204).
5. A beam combiner adjustment device as described in claim 1 or 2, characterized in that, The center of the first adjustment cavity (104) and the base (1) connecting surface, the center shaft hole (103) of the side panel adjustment center, and the center of the second adjustment cavity (105) and the base (1) connecting surface are on the same straight line.
6. The beam combiner adjustment device as described in claim 4, characterized in that, The center of the first adjustment cavity (104) and the base (1) connecting surface, the center shaft hole (103) of the side panel adjustment center, and the center of the second adjustment cavity (105) and the base (1) connecting surface are on the same straight line.