Laser lamp adjusting auxiliary device based on half-reflecting mirror combination

Abstract

The utility model relates to a laser lamp adjusting auxiliary device based on a half-reflecting mirror combination, which comprises an upper fixing plate, a lower fixing plate, a supporting column, a half-reflecting mirror combination and a replaceable target surface, the upper fixing plate and the lower fixing plate are connected with each other through the supporting column, and the upper fixing plate and the lower fixing plate are horizontally arranged. The half-reflecting mirror combination comprises an upper half-reflecting mirror and a lower half-reflecting mirror; an upper mounting groove is formed in the middle of the upper fixing plate, a through hole is formed in the middle of the upper mounting groove, the upper half reflecting mirror is detachably mounted in the upper mounting groove, an upper lens leveling nut for supporting the upper half reflecting mirror is arranged at the bottom of the upper mounting groove, and the replaceable target surface can replace the upper half reflecting mirror to be mounted in the upper mounting groove; a lower installation groove is formed in the middle of the lower fixing plate, and the lower half reflecting mirror is detachably installed in the lower installation groove. Compared with the prior art, the laser lamp adjusting device has the advantages that the technical requirements of operators can be reduced, and the laser lamp adjusting reliability, precision and efficiency are improved.

Description

A laser lamp adjustment auxiliary device based on a combination of semi-reflective mirrors Technical Field

[0001] This utility model relates to the field of laser light adjustment auxiliary devices, and in particular to a laser light adjustment auxiliary device based on a combination of semi-reflective mirrors. Background Technology

[0002] In medical linear accelerators, laser lamps are used to calibrate the beam position and direction. Traditional laser lamp adjustment relies on manual operation; operators visually observe the position of the laser spot on the target surface and manually adjust the angle and position of the laser lamp to align it with the target. This method is widely used in existing technology, but it has the following inherent drawbacks:

[0003] Inefficient: Manually adjusting the laser lights is time-consuming, especially when frequent adjustments are required. Operators need to repeatedly observe and adjust, resulting in low efficiency. For large accelerators or scenarios requiring high-precision calibration, adjustment time can increase significantly.

[0004] Limited precision: Manual adjustment relies on the operator's experience and judgment, which is prone to subjective errors. Due to the limited resolving power of the human eye, especially in situations with small light spots or strong ambient light interference, it is difficult to achieve high-precision adjustment requirements.

[0005] The utility model disclosed in CN222510630U provides a detection phantom for accelerator laser lamp calibration, comprising a phantom body in the shape of a regular square frustum; each of the four inclined surfaces of the phantom body is provided with a first crosshair, the first crosshair including a horizontal line parallel to the bottom surface of the phantom body and a vertical line perpendicular to the horizontal line; each horizontal line is located in the same plane, and each vertical line intersects at the midpoint of the corresponding horizontal line; at least one inclined surface is provided with a vertical plate arranged along the corresponding vertical line, and the vertical plate is perpendicular to the inclined surface; the side of the vertical plate is provided with a marking line coplanar with each horizontal line.

[0006] The above solution requires manual observation of the deviation between the laser line projected onto the model body and the crosshairs and marking lines to achieve laser line position calibration, but it is still difficult to observe subtle differences and cannot meet the requirements for high-precision adjustment. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the existing technology by providing a laser lamp adjustment auxiliary device based on a combination of semi-reflective mirrors, thereby improving the reliability, accuracy and efficiency of laser lamp adjustment.

[0008] The objective of this utility model can be achieved through the following technical solutions:

[0009] A laser lamp adjustment auxiliary device based on a semi-reflective mirror assembly includes an upper fixed plate, a lower fixed plate, a support column, a semi-reflective mirror assembly, and a replaceable target surface. The upper fixed plate and the lower fixed plate are connected to each other by the support column and are arranged horizontally relative to each other. The semi-reflective mirror assembly includes an upper semi-reflective mirror and a lower semi-reflective mirror.

[0010] The upper fixing plate has an upper mounting groove in the middle, and the middle of the upper mounting groove is a through hole. The upper half mirror can be detachably installed in the upper mounting groove. The bottom of the upper mounting groove is provided with an upper mirror leveling nut to support the upper half mirror. The replaceable target surface can replace the upper half mirror to be installed in the upper mounting groove. The lower fixing plate has a lower mounting groove in the middle, and the lower half mirror can be detachably installed in the lower mounting groove.

[0011] Furthermore, the upper surface of the upper mounting groove is recessed downward relative to the upper surface of the upper fixing plate, and has an annular structure.

[0012] Furthermore, an upper lens fixing device is installed on the upper surface of the upper fixing plate, and the upper lens fixing device is provided with an elastic pressure plate that abuts against the upper half-reflector or the replaceable target surface.

[0013] Furthermore, the number of upper lens fixing devices is multiple, and they are evenly distributed on the outer side of the upper half mirror or the replaceable target surface.

[0014] Furthermore, the number of the upper lens leveling nuts is multiple, and they are evenly distributed on the outer side of the upper half mirror or the replaceable target surface.

[0015] Furthermore, a lower lens fixing device is installed on the upper surface of the lower fixing plate, and the lower lens fixing device is provided with an elastic pressure plate that abuts against the lower half-reflector.

[0016] Furthermore, the two ends of the support column are respectively connected to an upper fixing plate and a lower fixing plate by bolts.

[0017] Furthermore, the replaceable target surface is provided with a high-contrast background, which is a black and white grid or black and white concentric circles.

[0018] Furthermore, the upper half-mirror, the lower half-mirror, and the replaceable target surface are all circular structures.

[0019] Furthermore, the upper half-reflector, the lower half-reflector, and the replaceable target face are directly opposite the laser lamp.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] (1) This solution uses two semi-reflective mirrors, one above the other, and fixes them with upper and lower fixing plates and support columns. It can be used as an angle verification device. During the laser light adjustment process, the laser light can be shone on the semi-reflective mirror assembly. The light will be continuously reflected between the upper and lower semi-reflective mirrors, magnifying the small angle changes of the laser light to verify whether the laser light is perpendicular to the upper and lower semi-reflective mirrors. Afterwards, the semi-reflective mirror assembly can be easily replaced with a replaceable target surface. The position of the laser light can be adjusted according to the spot image of the laser light shining on the replaceable target surface, so as to reduce the technical requirements of the operator and improve the reliability, accuracy and efficiency of laser light adjustment.

[0022] (2) In this scheme, the target surface adopts a high-contrast background and marker point design, which makes it easy to quickly identify the position of the laser spot so as to make efficient laser lamp position adjustment. Attached Figure Description

[0023] Figure 1 is a three-dimensional structural schematic diagram of a laser lamp adjustment auxiliary device based on a combination of semi-reflective mirrors provided in an embodiment of this utility model;

[0024] Figure 2 is a schematic diagram of the main structure of a laser lamp adjustment auxiliary device based on a combination of semi-reflective mirrors provided in an embodiment of this utility model;

[0025] Figure 3 is a schematic diagram of the upper part of a laser lamp adjustment auxiliary device based on a combination of semi-reflective mirrors provided in an embodiment of this utility model.

[0026] In the diagram, 1 is the upper fixing plate, 2 is the lower fixing plate, 3 is the support column, 4 is the upper half of the reflector, 5 is the lower half of the reflector, 6 is the replaceable target surface, 7 is the upper lens leveling nut, 8 is the upper lens fixing device, 9 is the lower lens fixing device, and 10 is the elastic pressure plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] It should be noted that the terms "first" and "second" are used 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] Example 1

[0034] As shown in Figures 1-3, this embodiment provides a laser lamp adjustment auxiliary device based on a semi-reflective mirror assembly, including an upper fixed plate 1, a lower fixed plate 2, a support column 3, a semi-reflective mirror assembly, and a replaceable target surface 6. The upper fixed plate 1 and the lower fixed plate 2 are connected to each other through the support column 3. The upper fixed plate 1 and the lower fixed plate 2 are horizontally arranged relative to each other. The semi-reflective mirror assembly includes an upper semi-reflective mirror 4 and a lower semi-reflective mirror 5.

[0035] The upper mounting plate 1 has an upper mounting groove in the middle, and the middle of the upper mounting groove is a through hole. The upper half mirror 4 can be detachably installed in the upper mounting groove. The bottom of the upper mounting groove is provided with an upper mirror leveling nut 7 to support the upper half mirror 4. The replaceable target surface 6 can replace the upper half mirror 4 to be installed in the upper mounting groove. The lower mounting plate 2 has a lower mounting groove in the middle, and the lower half mirror 5 can be detachably installed in the lower mounting groove.

[0036] This solution uses two semi-reflective mirrors, one above the other, secured by upper and lower fixing plates and support columns. It serves as an angle verification device. During laser light adjustment, the laser light is first shone onto the semi-reflective mirror assembly. The light continuously reflects between the two mirrors, magnifying and displaying minute angular changes in the laser light to verify whether it is perpendicular to the mirrors. Afterward, the semi-reflective mirror assembly can be easily replaced with a replaceable target surface. Based on the laser spot image on the replaceable target surface, the laser light position can be adjusted, reducing the technical requirements for operators and improving the reliability, accuracy, and efficiency of laser light adjustment.

[0037] Preferably, an upper lens fixing device 8 is installed on the upper surface of the upper fixing plate 1, and the upper lens fixing device 8 is provided with an elastic pressure plate 10 that abuts against the upper half-reflector 4 or the replaceable target surface 6.

[0038] The lower lens fixing device 9 is installed on the upper surface of the lower fixing plate 2. The lower lens fixing device 8 is provided with an elastic pressure plate 10 that abuts against the lower half-reflector 5.

[0039] This solution involves installing upper and lower lens fixing devices on the upper and lower fixing plates. Both upper and lower lens fixing devices can be fixed to the upper and lower fixing plates using screws. An elastic pressure plate 10 is fixed at the connection point. The elastic pressure plate 10 is a spring sheet that protrudes to one side, and the protruding side is used to abut against the upper half mirror or the lower half mirror.

[0040] Specifically, the upper surface of the upper mounting groove is recessed downward relative to the upper surface of the upper fixing plate 1, and has a ring-shaped structure.

[0041] There are multiple upper lens fixing devices 8, which are evenly distributed on the outside of the upper half mirror 4 or the replaceable target surface 6.

[0042] There are multiple leveling nuts 7 for the upper mirror, which are evenly distributed on the outside of the upper half mirror 4 or the replaceable target surface 6.

[0043] In this embodiment, the upper half-reflector 4, the lower half-reflector 5, and the replaceable target surface 6 are all circular structures. The upper mounting groove is an annular structure, and its annular plate is provided with multiple mounting holes for mounting the upper lens leveling nut 7.

[0044] The two ends of the support column 3 are connected to the upper fixing plate 1 and the lower fixing plate 2 by bolts and nuts respectively.

[0045] Preferably, the replaceable target surface 6 is provided with a high-contrast background, which is a black and white grid or black and white concentric circles.

[0046] Multiple marker points can be set to assist in the calibration and position calculation of the replaceable target surface 6.

[0047] The reflectivity of the target material has been optimized to ensure that the laser spot is clearly visible, while avoiding overexposure or underexposure.

[0048] During use, the upper half-reflector 4 and the lower half-reflector 5 can be installed on the upper fixing plate 1 and the lower fixing plate 2 of the laser lamp adjustment auxiliary device, respectively.

[0049] Pre-leveling stage: The upper half mirror 4 is leveled using a reference laser that is incident perpendicularly. The reference laser is aligned with the upper half mirror 4. When the reference laser is incident at a small angle, the distance between the multiple reflected light spots between the upper half mirror 4 and the lower half mirror 5 should be equal and in the same straight line. If there is a deviation, the upper half mirror 4 needs to be adjusted by adjusting the upper mirror leveling nut 7.

[0050] Verticality measurement stage: Illuminate the laser lamp to be tested onto the leveled upper half-reflector 4. When the incident spot of the laser lamp to be tested coincides with the multiple reflected spot, the laser can be considered to be perpendicular to the lower surface of the device; otherwise, the angle of the laser lamp to be tested needs to be adjusted.

[0051] Laser lamp position adjustment stage: Replace the upper half reflector 4 with the replaceable target surface 6, and then the laser lamp under test emits a laser to illuminate the replaceable target surface 6 to determine whether the laser lamp under test is aligned with the required position of the replaceable target surface 6.

[0052] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A laser lamp adjustment auxiliary device based on a combination of semi-reflective mirrors, characterized in that, The system includes an upper fixing plate (1), a lower fixing plate (2), a support column (3), a semi-reflector assembly, and a replaceable target surface (6). The upper fixing plate (1) and the lower fixing plate (2) are connected to each other by the support column (3). The upper fixing plate (1) and the lower fixing plate (2) are horizontally arranged. The semi-reflector assembly includes an upper semi-reflector (4) and a lower semi-reflector (5). The upper fixing plate (1) has an upper mounting groove in the middle, and the middle of the upper mounting groove is a through hole. The upper semi-reflector (4) can be detachably installed in the upper mounting groove. The bottom of the upper mounting groove is provided with an upper lens leveling nut (7) to support the upper semi-reflector (4). The replaceable target surface (6) can replace the upper semi-reflector (4) and be installed in the upper mounting groove. The lower fixing plate (2) has a lower mounting groove in the middle, and the lower semi-reflector (5) can be detachably installed in the lower mounting groove.

2. The laser lamp adjustment auxiliary device based on a semi-reflective mirror assembly according to claim 1, characterized in that, The upper surface of the upper mounting groove is recessed downward relative to the upper surface of the upper fixing plate (1) and has an annular structure.

3. The laser lamp adjustment auxiliary device based on a semi-reflective mirror assembly according to claim 1, characterized in that, The upper surface of the upper fixing plate (1) is equipped with an upper lens fixing device (8), which has an elastic pressure plate (10) that abuts against the upper half-reflector (4) or a replaceable target surface (6).

4. The laser lamp adjustment auxiliary device based on a semi-reflective mirror assembly according to claim 3, characterized in that, The number of upper lens fixing devices (8) is multiple, and they are evenly distributed on the outside of the upper half mirror (4) or the replaceable target surface (6).

5. A laser lamp adjustment auxiliary device based on a semi-reflective mirror assembly according to claim 1, characterized in that, The number of the upper lens leveling nuts (7) is multiple, and they are evenly distributed on the outside of the upper half mirror (4) or the replaceable target surface (6).

6. A laser lamp adjustment auxiliary device based on a semi-reflective mirror assembly according to claim 1, characterized in that, The lower fixing plate (2) is equipped with a lower lens fixing device (9) on its upper surface. The lower lens fixing device (9) is provided with an elastic pressure plate (10) that abuts against the lower half-reflector (5).

7. The laser lamp adjustment auxiliary device based on a semi-reflective mirror assembly according to claim 1, characterized in that, The two ends of the support column (3) are respectively connected to the upper fixing plate (1) and the lower fixing plate (2) by bolts.

8. A laser lamp adjustment auxiliary device based on a semi-reflective mirror assembly according to claim 1, characterized in that, The replaceable target surface (6) is provided with a high-contrast background, which is a black and white grid or black and white concentric circles.

9. A laser lamp adjustment auxiliary device based on a semi-reflective mirror assembly according to claim 1, characterized in that, The upper half-reflector (4), the lower half-reflector (5), and the replaceable target surface (6) are all circular structures.

10. A laser lamp adjustment auxiliary device based on a semi-reflective mirror assembly according to claim 1, characterized in that, The upper half-reflector (4), the lower half-reflector (5), and the replaceable target surface (6) are positioned opposite the laser lamp.

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