Lens adjusting device and laser homogenizing device

By separating the lens rotating seat and the displacement seat, and using a high-resolution threaded pair and spring pin structure, the problems of poor adjustment coupling and stability in existing lens adjustment devices are solved, achieving high-precision and stable adjustment of the lens, and improving the spot quality and system stability.

CN122043698APending Publication Date: 2026-05-15SHENZHEN LUBANG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN LUBANG TECH CO LTD
Filing Date
2026-03-20
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In existing lens adjustment devices, displacement adjustment and angle adjustment are heavily coupled, making operation cumbersome and difficult to be precise. The adjustment resolution is insufficient, and the lack of an effective locking mechanism leads to the degradation of light spot quality and poor system stability.

Method used

The lens rotation seat and displacement seat are designed separately, and the angle and displacement are adjusted by independent first and second adjustment components respectively. The high-resolution threaded pair and spring pin structure, combined with the locking mechanism, ensures stability.

Benefits of technology

It achieves high-precision, independent adjustment of lens position and angle, improves the stability of the optical system and the quality of the light spot, and meets the requirements of high-precision homogenization devices.

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Abstract

The invention discloses a lens adjusting device and a laser homogenizing device, and the device comprises a lens rotating seat which is used for installing a lens and can rotate in a first direction; the lens displacement seat is internally provided with a lens rotating seat and can move along a second direction; the lens rotating seat is provided with an angle adjusting deflector rod, and the lens displacement seat is provided with a first opening; the first adjusting assembly comprises an angle adjusting seat and a first driver; the angle adjusting seat is arranged on the side surface with the first opening of the lens displacement seat; the first driver is arranged on the angle adjusting seat and abuts against one end of the angle adjusting deflector rod, and the first driver can linearly drive in the second direction; the second adjusting assembly comprises a displacement adjusting seat and a second driver; the displacement adjusting seat is arranged on the other side surfaces of the lens displacement seat; the second driver is arranged on the angle adjusting base and connected with the lens displacement base, and the second driver can linearly drive in the second direction. The strict requirements of an optical system on the position and the angle of the lens can be more easily met.
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Description

Technical Field

[0001] This invention relates to the field of adjustment equipment, and more specifically, to a lens adjustment device and a laser homogenization device. Background Technology

[0002] Laser homogenizing devices are key optical components in industrial laser processing systems. Their main function is to convert the Gaussian distributed beam output from the laser into a square or rectangular spot with uniform intensity distribution on the focal plane, meeting the stringent energy consistency requirements of processes such as cutting, welding, and surface treatment. These devices typically include a collimating lens, a homogenizing lens group (often a cylindrical lens array), and a focusing lens. The homogenizing lens group consists of multiple cylindrical lenses, and the relative positions and angular tolerances between these lenses directly affect the uniformity and shape of the final spot. Therefore, precise position and angle adjustments of the lenses are necessary.

[0003] In existing technologies, an integrated adjustment mechanism is commonly used to adjust cylindrical lenses. Specifically, the lens is placed within a lens frame, which is then mounted in a groove in the lens mount and secured by a pressure plate. A spring provides thrust at the rear of the lens frame, while two adjusting screws are located at the front. Synchronous rotation of the two screws allows for forward and backward movement of the lens, while differential rotation allows for slight deflection of the lens. This adjustment mechanism is mounted on a linearly movable lens mount and driven by a motor via a lead screw for a wide range of vertical movement to change the light spot size.

[0004] However, the inventors discovered significant flaws in the existing adjustment schemes. First, both displacement and angle adjustments rely on the same pair of set screws, resulting in severe coupling and interference between the two adjustment modes. Operators find it difficult to precisely and independently control any single variable, making the adjustment process cumbersome and hindering the achievement of ideal optical alignment. Second, the set screws themselves have a relatively large pitch (typically 0.5mm), leading to insufficient adjustment resolution and making it difficult to achieve sub-millimeter or even micrometer-level fine adjustments. This fails to meet the stringent tolerance requirements of high-precision homogenization devices for the relative positions of lenses. Finally, the structure lacks an effective locking mechanism, allowing adjusted lenses to easily shift or rotate during equipment transport or operational vibrations, resulting in degraded spot quality and poor system stability. Summary of the Invention

[0005] The purpose of this invention is to provide a lens adjustment device and a laser homogenization device, which can more easily meet the stringent requirements of optical systems for lens position and angle.

[0006] The embodiments of the present invention are implemented as follows: In a first aspect, an embodiment of this application provides a lens adjustment device, comprising: A lens rotatable mount for mounting a lens and rotatable in a first direction, the first direction being perpendicular to the mirror surface of the lens; The lens displacement seat has a lens rotating seat inside and can move along a second direction, which is parallel to the side length direction or radial direction of the lens; one side of the lens rotating seat is provided with an angle adjustment lever, and the lens displacement seat is provided with a first opening at a position relative to this side, so that one end of the angle adjustment lever passes through the first opening and penetrates the lens displacement seat. The first adjustment component includes an angle adjustment seat and a first driver; the angle adjustment seat is disposed on the side of the lens displacement seat having the first opening; the first driver is disposed on the angle adjustment seat and abuts against one end of the angle adjustment lever, wherein the first driver can be linearly driven along the second direction; The second adjustment component includes a displacement adjustment seat and a second driver; the displacement adjustment seat is disposed on the remaining side of the lens displacement seat; the second driver is disposed on the angle adjustment seat and connected to the lens displacement seat, wherein the second driver can drive linearly along the second direction.

[0007] In a possible implementation, the first adjustment assembly further includes an angle adjustment spring pin; the angle adjustment spring pin and the first driver are respectively disposed on opposite sides of the angle adjustment seat, and the ends of both extend into the angle adjustment seat and respectively abut against the two sides of the angle adjustment lever extending into the angle adjustment seat.

[0008] In a possible implementation, the angle adjustment seat has a second opening on the side opposite to the first opening, so that one end of the angle adjustment lever passes through the second opening through the side, wherein the size of the first opening and the second opening is not less than the maximum rotation angle of the angle adjustment lever.

[0009] In a possible implementation, the first driver includes a first threaded sleeve and a first screw, the first threaded sleeve being disposed on the angle adjusting seat, and one end of the first screw extending into the angle adjusting seat, and the two being connected by a threaded pair.

[0010] In a possible implementation, the angle adjusting spring pin includes a first fixed rod, a first adjusting rod, and a first spring. The first fixed rod is disposed on the angle adjusting seat, one end of the first adjusting rod extends into the angle adjusting seat, the first fixed rod and the first adjusting rod are connected by the first spring, and the first spring deforms along the second direction.

[0011] In a possible implementation, the second adjustment assembly further includes a displacement adjustment spring pin; the displacement adjustment spring pin and the second driver are respectively disposed on opposite sides of the displacement adjustment seat, and the ends of both extend into the displacement adjustment seat; the lens displacement seat is provided with a displacement adjustment block with one end extending into the displacement adjustment seat, and the ends of the displacement adjustment pin and the second driver respectively abut against the two sides of the displacement adjustment block.

[0012] In a possible implementation, the second driver includes a second threaded sleeve and a second screw, the second threaded sleeve being disposed on the displacement adjusting seat, and one end of the second screw extending into the displacement adjusting seat, and the two being connected by a threaded pair.

[0013] In a possible implementation, the displacement adjusting spring pin includes a second fixed rod, a second adjusting rod, and a second spring. The second fixed rod is disposed on the displacement adjusting seat, one end of the second adjusting rod extends into the displacement adjusting seat, the second fixed rod and the second adjusting rod are connected by the second spring, and the second spring deforms along the second direction.

[0014] In possible implementations, it also includes: The lens rotating seat cover and the lens retaining ring are pressed onto the top surface of the lens from top to bottom; The lens mount is connected to the side of the bottom of the lens displacement seat; the opposing sides of the lens mount and the lens displacement seat are respectively provided with a first locking structure and a second locking structure, and the first locking structure and the second locking structure can be connected by a locking member; The lower end cover plate is located inside the lens mount and is connected to the bottom of the lens displacement seat.

[0015] Secondly, the laser homogenization device provided in this application includes the above-mentioned lens adjustment device.

[0016] The beneficial effects of this invention are as follows: by completely separating the rotation adjustment function and the displacement adjustment function of the lens structurally, and having them independently implemented by the first adjustment component and the second adjustment component respectively, the mutual interference and adjustment difficulties caused by simultaneously adjusting displacement and angle through two set screws in the prior art are avoided. The independent adjustment mechanism makes the operation more intuitive and precise, and makes it easier to meet the stringent requirements of the optical system for the position and angle of the lens. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an overall structural diagram of the lens adjustment device according to an embodiment of the present invention; Figure 2 This is an exploded view of the lens adjustment device according to an embodiment of the present invention; Figure 3 This is an overall structural diagram of the lens adjustment device according to an embodiment of the present invention after removing the second adjustment component; Figure 4 This is a partial exploded view of the lens adjustment device according to an embodiment of the present invention.

[0019] Icons: 1. Lens rotating seat; 2. Lens displacement seat; 21. First opening; 3. Lens; 4. Angle adjustment lever; 5. First adjustment component; 51. Angle adjustment seat; 52. First driver; 53. Angle adjustment spring pin; 6. Second adjustment component; 61. Displacement adjustment seat; 62. Second driver; 63. Displacement adjustment spring pin; 71. Lens rotating seat cover plate; 72. Lens pressure ring; 73. Lens base; 74. Lower end cover plate; 75. Spring steel ball; 76. First locking structure; 77. Second locking structure; 8. Displacement adjustment lever. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the 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 invention without inventive effort are within the scope of protection of the invention.

[0022] 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.

[0023] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "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 product of this invention is in use. They are only for the convenience of describing this invention 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 invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] 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.

[0025] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] First Embodiment Please refer to Figures 1 to 4 This embodiment provides a lens adjustment device for use with lens 3 in a laser homogenization device, to perform high-precision displacement and angle adjustment of lens 3. The device includes a lens rotation seat 1, a lens displacement seat 2, a first adjustment component 5, and a second adjustment component 6.

[0027] The lens rotating base 1 is used to mount the lens 3 (e.g., a cylindrical lens) and can rotate in a first direction, which is perpendicular to the mirror surface of the lens 3, i.e., the vertical direction shown in the figure. An angle adjustment lever 4 is provided on one side of the lens rotating base 1. The lens rotating base 1 can press and fix the lens 3 in place using a lens retaining ring 72, ensuring no relative movement between the lens 3 and the lens rotating base 1.

[0028] The lens displacement seat 2 has a lens rotating seat 1 inside, which can move along a second direction. The second direction can be determined according to the shape of the lens 3. For example, if the horizontal cross-section of the lens 3 is triangular, rectangular, or hexagonal, the second direction is parallel to the side length direction of the mirror surface. Alternatively, if the horizontal cross-section of the mirror surface is circular or elliptical, the second direction is parallel to the radial direction of the lens 3. The lens displacement seat 2 has a first opening 21 on the side corresponding to the angle adjustment lever 4 on the lens rotating seat 1, so that one end of the angle adjustment lever 4 passes through the first opening 21 through the lens displacement seat 2. The lower end of the lens rotating seat 1 and the lens displacement seat 2 can be positioned by engaging with a shaft hole. The upper and lower positions are positioned by a step and pressed down by the lens rotating seat cover plate 71, so that the lens rotating seat 1 retains only the freedom of rotation around the axis. In addition, the bottom of the lens rotating seat 1 with the step position has four spring steel balls 75, which can connect with the corresponding positions of the lens displacement seat 2, thereby providing a small amount of buoyancy to the lens rotating seat 1 and reducing the resistance when the lens rotating seat 1 rotates.

[0029] The first adjustment assembly 5 includes an angle adjustment seat 51 and a first driver 52. The angle adjustment seat 51 is located on the side of the lens displacement seat 2 with the first opening 21. The first driver 52 is located on the angle adjustment seat 51 and abuts against one end of the angle adjustment lever 4 that passes through the lens displacement seat 2. The first driver 52 can be linearly driven in a second direction, thereby pushing or pulling the angle adjustment lever 4 to make the lens rotating seat 1 rotate around the axis, thereby adjusting the angle of the lens 3.

[0030] The second adjustment assembly 6 includes a displacement adjustment seat 61 and a second driver 62. The displacement adjustment seat 61 is located on the remaining sides (e.g., the left or right side) of the lens displacement seat 2. The second driver 62 is located on the displacement adjustment seat 61 and connected to the lens displacement seat 2. The second driver 62 can be linearly driven along a second direction, thereby pushing or pulling the entire lens displacement seat 2 to move along the second direction, realizing the adjustment of the front and rear position of the lens 3.

[0031] In this embodiment, by structurally separating the rotation adjustment function and the displacement adjustment function of lens 3, which are independently implemented by the first adjustment component 5 and the second adjustment component 6 respectively, the mutual interference and adjustment difficulties caused by simultaneously adjusting displacement and angle through two set screws in the prior art are avoided. The independent adjustment mechanism makes the operation more intuitive and precise, and makes it easier to meet the stringent requirements of the optical system for the position and angle of lens 3.

[0032] In a preferred embodiment, the first adjustment component 5 further includes an angle adjustment spring pin 53. The angle adjustment spring pin 53 and the first driver 52 are respectively disposed on opposite sides of the angle adjustment seat 51, i.e., the left and right sides in the figure, and the ends of both extend into the angle adjustment seat 51 and abut against the two sides of the angle adjustment lever 4 extending into the angle adjustment seat 51.

[0033] In this embodiment, the angle adjustment spring pin 53 provides a continuous elastic preload, which, in conjunction with the pushing or pulling force of the first driver 52, forms a stable torque acting on the angle adjustment lever 4. This design eliminates adjustment gaps, ensuring that the angle adjustment lever 4 remains in contact with the driving component during adjustment, avoiding idle travel, thereby improving the response accuracy and stability of angle adjustment. Simultaneously, the elastic preload also provides a buffering effect, preventing damage to the lens rotating seat 1 caused by over-adjustment or impact of the first driver 52.

[0034] In a preferred embodiment, the angle adjustment seat 51 has a second opening on its side relative to the first opening 21, so that one end of the angle adjustment lever 4 extends into the angle adjustment seat 51 through the first opening 21 and the second opening in sequence. The size of the first opening 21 and the second opening is designed to be no less than the movement space required for the angle adjustment lever 4 at the maximum allowable rotation angle.

[0035] In this embodiment, the second opening ensures that the angle adjustment lever 4 is not interfered with by the hole wall during rotation, providing sufficient travel for angle adjustment. Simultaneously, the size of the opening matches the lever's range of motion, also serving as a physical limit to prevent accidental operation from causing the lens 3 to rotate beyond the optical system's allowable range, thus protecting the lens 3 and the adjustment mechanism.

[0036] In a preferred embodiment, the first driver 52 includes a first threaded sleeve and a first screw. The first threaded sleeve is fixedly disposed on the angle adjusting seat 51, and one end of the first screw extends into the angle adjusting seat 51 and is connected to the first threaded sleeve via a threaded pair. For example, the pitch of the threaded pair can be selected as 0.25 mm.

[0037] In this embodiment, a precision threaded pair is used as the first actuator 52, which doubles the adjustment resolution compared to the 0.5mm pitch set screw in the prior art. When the first screw is rotated, its minute axial movement is amplified into precise linear motion through the threaded pair, and then converted into a minute angular displacement of the lens rotating seat 1 through the angle adjustment lever 4. This significantly improves the precision of angle adjustment, making fine-tuning of the lens 3 angle easier and more accurate, and enabling the relative angular tolerance between the lenses 3 to be controlled at a lower level.

[0038] In a preferred embodiment, the angle adjusting spring pin 53 includes a first fixed rod, a first adjusting rod, and a first spring. The first fixed rod is disposed on the angle adjusting seat 51, and one end of the first adjusting rod extends into the angle adjusting seat 51 and abuts against the angle adjusting lever 4. The first fixed rod and the first adjusting rod are connected by a first spring, which deforms along a second direction (i.e., the adjusting direction) and provides elastic force.

[0039] In this embodiment, a first spring is compressed and installed between the first fixed rod and the first adjusting rod, providing a constant elastic force to the first adjusting rod for the pointing angle adjustment lever 4. This structure not only achieves a stable preload function, but also allows the elastic deformation of the spring to absorb some assembly errors and dimensional changes caused by thermal expansion, maintaining the stability of the preload force and improving the reliability of the adjustment system under different environments.

[0040] In a preferred embodiment, the second adjustment assembly 6 further includes a displacement adjustment spring pin 63. The displacement adjustment spring pin 63 and the second actuator 62 are respectively disposed on opposite sides of the displacement adjustment seat 61, and the ends of both extend into the displacement adjustment seat 61. The lens displacement seat 2 is provided with a displacement adjustment block 8, one end of which extends into the displacement adjustment seat 61, and the ends of the displacement adjustment spring pin 63 and the second actuator 62 abut against the two sides of the displacement adjustment block 8, respectively.

[0041] In this embodiment, the displacement adjusting spring pin 63 and the second driver 62 clamp the displacement adjusting block 8 from both sides, forming a stable torque structure similar to the first adjusting component 5. This design also eliminates the play in the adjustment direction of the lens displacement seat 2, ensuring zero play in displacement adjustment and improving the accuracy of front and rear position adjustment and repeatability. The preload of the spring pin also ensures that the lens displacement seat 2 remains stable when not locked.

[0042] In a preferred embodiment, the second actuator 62 includes a second threaded sleeve and a second screw. The second threaded sleeve is disposed on the displacement adjusting seat 61, and one end of the second screw extends into the displacement adjusting seat 61 and is connected to the second threaded sleeve via a threaded pair. For example, the pitch of this threaded pair can also be selected as 0.25 mm.

[0043] In this embodiment, the second actuator 62 uses the same high-resolution threaded pair as the first actuator 52, enabling high-precision fine-tuning of the front and rear positions of the lens 3. The fine pitch allows the operator to precisely control the displacement of the lens 3 by rotating the second screw, meeting the stringent requirements of the laser homogenization device for the relative positional tolerances between the lenses 3.

[0044] In a preferred embodiment, the displacement adjusting spring pin 63 includes a second fixed rod, a second adjusting rod, and a second spring. The second fixed rod is disposed on the displacement adjusting seat 61, and one end of the second adjusting rod extends into the displacement adjusting seat 61 and abuts against the displacement adjusting block 8. The second fixed rod and the second adjusting rod are connected by a second spring, which deforms along a second direction and provides elastic force.

[0045] In this embodiment, the structure and principle of the displacement adjusting spring pin 63 are similar to those of the angle adjusting spring pin 53, providing a stable reverse preload force for the displacement adjusting block 8. This ensures that the adjustment action of the second driver 62 can be accurately transmitted, and assists in maintaining the position of the lens displacement seat 2 after adjustment, enhancing the rigidity and stability of the entire displacement adjusting system.

[0046] In a preferred embodiment, the lens adjustment device further includes a lens rotating seat cover plate 71, a lens retaining ring 72, a lens base 73, and a lower end cover plate 74. The lens retaining ring 72 and the lens rotating seat cover plate 71 are sequentially pressed onto the top surface of the lens 3 from top to bottom, working together with the lens rotating seat 1 to reliably clamp and fix the lens 3. The lens base 73 is used to accommodate and install the entire adjustment device. After the lens displacement seat 2 is installed in the lens base 73, its left and right sides are limited, and it can only slide in the front and back (second direction). The lower end cover plate 74 is located at the bottom of the lens base 73 and is connected to the bottom of the lens displacement seat 2 by screws to position the lens displacement seat 2 in the vertical direction.

[0047] The lens mount 73 and the lens displacement seat 2 are respectively provided with a first locking structure 76 and a second locking structure 77 on their opposite sides (for example, respectively provided on the displacement adjustment locking block on the right side of the lens mount 73 and the corresponding threaded holes on the lens displacement seat 2). After the position of the lens 3 is adjusted, the lens displacement seat 2 and the lens mount 73 can be locked together by passing a locking element (such as a screw) through the hole on the lens displacement seat 2 and tightening it with the displacement adjustment locking block.

[0048] In addition, a threaded locking pin can be provided on the second actuator 62 (such as the second screw). After the displacement adjustment is completed, tightening the locking pin can prevent the second screw from rotating due to vibration or other reasons, thus achieving double locking protection.

[0049] In this embodiment, the locking between the lens mount 73 and the lens displacement seat 2, as well as the anti-loosening locking of the second driver 62, can reduce the problem of position changes of the lens 3 due to equipment transportation or operational vibration after adjustment. The dual locking mechanism greatly improves the long-term stability and reliability of the position of the lens 3 after adjustment, ensuring the consistency of the optical performance of the laser homogenization device.

[0050] The working process of the lens 3 adjustment device is briefly described below with reference to the above embodiments: Angle Adjustment: When the angle of lens 3 needs to be adjusted, the operator rotates the first driver 52 (first screw). The axial movement of the first screw pushes the angle adjustment lever 4, overcoming the elastic force of the angle adjustment spring pin 53, causing the lens rotating seat 1 to drive the lens 3 to rotate around the axis. Due to the small pitch of the threaded pair, the adjustment resolution is high, and fine-tuning of the angle of lens 3 can be achieved. After adjustment to the target angle, the preload of the angle adjustment spring pin 53 and the holding force of the first driver 52 together maintain the stability of the angle.

[0051] Displacement Adjustment: When it is necessary to adjust the front-to-back position of lens 3, the operator rotates the second drive 62 (second screw). The axial movement of the second screw pushes the displacement adjustment block 8, overcoming the elastic force of the displacement adjustment spring pin 63, and causing the entire lens displacement seat 2 and the lens rotating seat 1 and lens 3 installed therein to slide back and forth along the guide rail. Also, due to the high resolution of the threaded pair, precise position adjustment can be achieved.

[0052] Locking and fixing: After adjusting the angle and displacement to meet the optical requirements, first tighten the threaded locking pin on the second driver 62 to prevent the second screw from loosening. Then, pass the locking part (screw) through the locking hole on the lens displacement seat 2 and tighten it with the displacement adjustment locking block fixed on the lens base 73, thereby firmly fixing the lens displacement seat 2 on the lens base 73 and completing the entire locking operation.

[0053] Through the above step-by-step, independent adjustments and reliable locking, this device achieves high-precision and high-stability adjustment of the lens's three angles and position.

[0054] Second Embodiment This embodiment also provides a laser homogenization device, which includes a lens adjustment device as described in any of the foregoing embodiments. The laser homogenization device further includes a laser source, a collimating lens, a homogenization cylindrical lens group including an adjustable lens 3, and a focusing lens. By applying the aforementioned lens adjustment device, the laser homogenization device can precisely and stably adjust and fix the lens 3 in its core homogenization lens group, thereby ensuring the uniformity and adjustability of the light intensity distribution of the output light spot on the focal plane, and improving the long-term operational stability of the entire device under vibration conditions.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A lens adjustment device, characterized in that, include: A lens rotatable mount for mounting a lens and rotatable in a first direction, the first direction being perpendicular to the mirror surface of the lens; The lens displacement seat has a lens rotating seat inside and can move along a second direction, which is parallel to the side length direction or radial direction of the lens; one side of the lens rotating seat is provided with an angle adjustment lever, and the lens displacement seat is provided with a first opening at a position relative to this side, so that one end of the angle adjustment lever passes through the first opening and penetrates the lens displacement seat. The first adjustment component includes an angle adjustment seat and a first driver; The angle adjustment seat is disposed on the side of the lens displacement seat having the first opening; the first driver is disposed on the angle adjustment seat and abuts against one end of the angle adjustment lever, wherein the first driver can drive linearly along the second direction; The second adjustment component includes a displacement adjustment seat and a second driver; the displacement adjustment seat is disposed on the remaining side of the lens displacement seat; the second driver is disposed on the angle adjustment seat and connected to the lens displacement seat, wherein the second driver can drive linearly along the second direction.

2. The lens adjustment device according to claim 1, characterized in that, The first adjustment assembly further includes an angle adjustment spring pin; the angle adjustment spring pin and the first driver are respectively located on opposite sides of the angle adjustment seat, and the ends of both extend into the angle adjustment seat and respectively abut against the two sides of the angle adjustment lever extending into the angle adjustment seat.

3. The lens adjustment device according to claim 2, characterized in that, The angle adjustment seat has a second opening on the side opposite to the first opening, so that one end of the angle adjustment lever passes through the second opening through the side. The size of the first opening and the second opening is not less than the maximum rotation angle of the angle adjustment lever.

4. The lens adjustment device according to claim 2, characterized in that, The first driver includes a first threaded sleeve and a first screw. The first threaded sleeve is disposed on the angle adjusting seat, and one end of the first screw extends into the angle adjusting seat. The two are connected by a threaded pair.

5. The lens adjustment device according to claim 2, characterized in that, The angle adjusting spring pin includes a first fixed rod, a first adjusting rod, and a first spring. The first fixed rod is disposed on the angle adjusting seat, one end of the first adjusting rod extends into the angle adjusting seat, the first fixed rod and the first adjusting rod are connected by the first spring, and the first spring deforms along the second direction.

6. The lens adjustment device according to claim 1, characterized in that, The second adjustment assembly further includes a displacement adjustment spring pin; the displacement adjustment spring pin and the second driver are respectively located on opposite sides of the displacement adjustment seat, and the ends of both extend into the displacement adjustment seat; the lens displacement seat is provided with a displacement adjustment block with one end extending into the displacement adjustment seat, and the ends of the displacement adjustment pin and the second driver respectively abut against the two sides of the displacement adjustment block.

7. The lens adjustment device according to claim 6, characterized in that, The second driver includes a second threaded sleeve and a second screw. The second threaded sleeve is disposed on the displacement adjusting seat, and one end of the second screw extends into the displacement adjusting seat. The two are connected by a threaded pair.

8. The lens adjustment device according to claim 6, characterized in that, The displacement adjusting spring pin includes a second fixed rod, a second adjusting rod, and a second spring. The second fixed rod is disposed on the displacement adjusting seat, and one end of the second adjusting rod extends into the displacement adjusting seat. The second fixed rod and the second adjusting rod are connected by the second spring, and the second spring deforms along the second direction.

9. The lens adjustment device according to claim 8, characterized in that, Also includes: The lens rotating seat cover and the lens retaining ring are pressed onto the top surface of the lens from top to bottom; The lens mount is connected to the side of the bottom of the lens displacement seat; the opposing sides of the lens mount and the lens displacement seat are respectively provided with a first locking structure and a second locking structure, and the first locking structure and the second locking structure can be connected by a locking member; The lower end cover is located inside the lens mount and is connected to the bottom of the lens displacement seat.

10. A laser homogenization device, characterized in that, Includes the lens adjustment device as described in any one of claims 1 to 9.