A mirror mount for fine tuning the pointing of a laser beam

Abstract

The utility model discloses a kind of reflector lens holder with fine-tuning laser beam pointing, it is related to optical experiment and laser equipment field, the utility model includes mirror frame main part, and mirror frame main part outer surface is penetrated with lens seat, and three support platforms are fixed in lens seat inside, and lens main body is connected between three support platforms;Three force relief notches are set in lens seat outer circle, and shrink slot is set in the upper portion of lens seat inside, and second bolt is penetrated in the upper portion of mirror frame main part side.The utility model is set through mirror frame main part, first bolt, lens seat and lens main body, the axial angle design of lens seat inner hole and lens main body whole, and the mode that the angle of rotation lens seat adjusts lens main body, realize the two-dimensional fine-tuning of laser beam pitch and yaw angle, simultaneously can be adjusted horizontal angle of mirror frame main part to thereby synergic adjustment compensation yaw angle, it is convenient to adjust and high precision, can satisfy the debugging demand of high-precision optical experiment and laser equipment.

Description

Technical Field

[0001] This utility model relates to the field of optical experiments and laser equipment, specifically a reflector frame with adjustable laser beam direction. Background Technology

[0002] In optical experiments and laser equipment, various optical components are fixed on optical frames of different types. By adjusting the optical frames, the azimuth angle of the optical components can be further adjusted, thereby spatially transforming the laser beam. Precise control of the laser beam direction is crucial for laser calibration.

[0003] Currently, there are three main types of lens mount solutions commonly used inside lasers: 1. Multi-dimensional adjustable lens mounts, either the same type used in experimental platforms or modified versions of adjustable lens mounts, all using a spring and set screw structure. Lenses are fixed using pressure plates or set screws. Advantages include multi-dimensional adjustability and reduced optical path setup time. Disadvantages include larger size, complex structure, and poor stability. 2. Flexible structure lens mounts, replacing the spring structure of traditional adjustable lens mounts. They utilize the rigidity of the material itself plus a set screw structure to achieve lens adjustability. Advantages include multi-dimensional adjustability and improved stability of the integrated structure compared to traditional adjustable lens mounts. Disadvantages include larger size, complex manufacturing process, and high material requirements. 3. Ordinary lens mounts, without an adjustable structure. Lenses are pre-fixed to the mount with glue or pressure blocks. During optical adjustment, the optical path direction is adjusted by adding shims to the bottom of the lens mount screws and adjusting the screw hole gaps. Advantages include simple structure and good stability. Disadvantages include high adjustment difficulty, requiring repeated replacement of shims to adjust the optical path direction, and high requirements for glue selection. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a reflector frame with adjustable laser beam direction to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mirror frame with adjustable laser beam direction, comprising a frame body, a lens holder penetrating the outer surface of the frame body, and three support platforms fixed inside the lens holder, with the lens body connected between the three support platforms; three pressure relief slots are formed on the outer ring of the lens holder, a shrinkage groove is formed on the upper part of the inside of the lens holder, a second bolt penetrates through the upper part of one side of the frame body, and a support limiting seat is connected to the upper part of the inside of the frame body; mounting holes are formed on both sides of the top of the frame body, and two first bolts are respectively installed in the two mounting holes; a micro-groove is formed on the bottom of the frame body.

[0006] By adopting the above technical solution, the frame body is fastened to the mounting surface by threaded connection through the mounting hole using the first bolt. The micro-groove, through its geometric structure, disperses stress and guides the elastic deformation of the frame body, preventing bulging deformation at the bottom of the frame body when the first bolt is tightened. This ensures close contact between the frame body and the mounting surface, maintaining the stability of the beam direction. During assembly, the lens body is glued to one of the support platforms, while the other two support platforms only contact the lens body, not fix it. After the glue cures, the lens holder is placed into the frame body, and then the second bolt is tightened, causing the upper part of the frame body to deform and clamp the lens holder. While the lens holder is clamped, the pressure is evenly distributed through the pressure relief groove and shrinkage groove, allowing the pressure to be evenly applied to the lens body through the three support platforms. This allows the other two un-glue-coated support platforms to fit tightly against the sidewalls of the lens body, completing the locking. The three support platforms form a stable triangular structure, ensuring the lens body's radial and axial stability. The frame's stability and reliability are improved by fully constraining the angle of rotation, avoiding the problem of traditional frames relying entirely on glue for fixation. This reduces the impact of surface shape and glue thermal expansion on the optical path. The second bolt's tightening force is limited by a support limit seat to prevent crushing the lens body. When adjusting the lens body's angle, the first and second bolts are loosened, allowing the frame body and lens mount to rotate freely without detaching. The lens mount's inner hole and the lens body itself are designed with an axial offset, allowing the operator to adjust the lens body's offset angle by rotating the lens mount. This converts circular motion into a linear change in beam angle, enabling two-dimensional fine-tuning of the laser beam's pitch and yaw angles. Furthermore, the operator can rotate the frame body on a horizontal plane to coordinate and compensate for the yaw angle, meeting the needs of high-precision optical experiments and laser equipment debugging. Once the adjustment angle is determined, the first and second bolts are tightened, locking the frame body and lens mount in place, preventing further deflection and displacement, thus ensuring stability during use.

[0007] Furthermore, the first bolt is fitted with a double washer, which is a flat washer and a spring washer, respectively, and the second bolt is fitted with a single washer, which is a spring washer.

[0008] By adopting the above technical solution, once the adjustment angle is determined, the first and second bolts can be tightened to lock and limit the frame body and lens holder, preventing deflection and displacement, thus ensuring stability during use. Furthermore, the stability of the first and second bolts is increased by using double and single shims respectively, reducing the impact of vibration on the first and second bolts and preventing the frame from loosening.

[0009] Furthermore, the support and limiting seat is made of polytetrafluoroethylene material, and the second bolt is threadedly connected to the main body of the eyeglass frame.

[0010] By adopting the above technical solution, the upper part of the frame body is deformed by tightening the second bolt to clamp the lens holder, and the tightening force of the second bolt is limited by the support limit seat to prevent the lens body from being crushed.

[0011] Furthermore, the mounting hole is an oblong hole, and the width of the mounting hole is greater than the diameter of the first bolt, and the length of the mounting hole is greater than the width of the mounting hole.

[0012] By adopting the above technical solution, staff can rotate the main body of the mirror frame on a horizontal plane, thereby coordinating and adjusting the compensating sway angle to meet the debugging needs of high-precision optical experiments and laser equipment.

[0013] Furthermore, the inner hole of the lens holder is an eccentric oblique hole, that is, the axis of the inner hole intersects with the axis of the lens holder.

[0014] By adopting the above technical solution, the inner hole of the lens holder and the lens body itself are designed with an axial offset angle. The operator can adjust the offset angle of the lens body by rotating the lens holder, converting the circular motion into a linear change in the beam angle, and realizing two-dimensional fine adjustment of the pitch and yaw angle of the laser beam.

[0015] Furthermore, the lens body is bonded and fixed to one of the support platforms by dispensing adhesive, and the lens body is in contact with the other two support platforms. The three support platforms are arranged in a circular array, and all three support platforms and the lens body are inclined.

[0016] By adopting the above technical solution, during assembly, the lens body is glued and fixed to one of the support platforms. The other two support platforms, which are not coated with glue, can be tightly fitted to the side wall of the lens body to complete the locking. The three support platforms form a stable triangular structure, ensuring that the radial and axial degrees of freedom of the lens body are fully constrained. This avoids the problem of traditional frames relying entirely on glue for fixation, reduces the influence of surface shape and glue thermal expansion on the optical path, and improves the stability and reliability of the frame.

[0017] Furthermore, the pressure relief slots are provided in three ways, and the three pressure relief slots are distributed in a ring array.

[0018] By adopting the above technical solution, the pressure is evenly distributed through the pressure relief groove and the shrinkage groove, so that the pressure can be evenly applied to the lens body through the three support platforms.

[0019] Furthermore, the frame body is made of aluminum alloy or stainless steel, and the lens mount is made of brass or aluminum alloy.

[0020] By adopting the above technical solutions, for high-load scenarios, such as large-sized lenses, the main body of the frame is made of stainless steel and the lens mount is made of brass, which has high wear resistance, corrosion resistance and good weather resistance. For light-load scenarios, both the main body of the frame and the lens mount are made of aluminum alloy, which has the advantages of lightweight, corrosion resistance and low cost.

[0021] Furthermore, the outer ring of the lens holder is provided with anti-slip texture.

[0022] By adopting the above technical solution, the anti-slip texture provides friction, making the operation more stable for the staff and preventing the lens mount from slipping and affecting the operation accuracy.

[0023] In summary, the present invention has the following main advantages:

[0024] 1. This utility model achieves two-dimensional fine adjustment of the pitch and yaw angles of the laser beam by setting up the frame body, the first bolt, the lens seat and the lens body, the axial deviation angle design of the inner hole of the lens seat and the lens body as a whole, and the method of adjusting the yaw angle orientation of the lens body by rotating the lens seat. At the same time, the yaw angle can be adjusted and compensated by adjusting the horizontal angle of the frame body. The adjustment is convenient and highly accurate, which can meet the debugging needs of high-precision optical experiments and laser equipment.

[0025] 2. This utility model uses a second bolt, a support limiting seat, a pressure relief groove, a shrinkage groove, and a support platform to fix the lens through a side-press clamping structure. One point is pre-applied with glue, and the other two points are mechanically locked. This avoids the problem of traditional frames relying on glue for fixation, reduces the impact of glue thermal expansion on the optical path, and the side-press fixing has less impact on the surface shape of the lens than the front-press fixing, thus improving the stability and reliability of the frame.

[0026] 3. This utility model, through the setting of micro-grooves, causes the bottom of the frame body to be subjected to vertical downward pressure when the first bolt is tightened. If the bottom is a complete flat surface, the pressure will be concentrated near the contact point of the first bolt, causing the material in that area to be squeezed outwards due to excessive stress, resulting in bulging deformation. This deformation will cause gaps between the frame body and the mounting surface, affecting the installation accuracy and even causing the frame to sway and change the beam direction. The micro-grooves disperse stress and guide the elastic deformation of the frame body through geometric structure. That is, when the frame body is subjected to force, it preferentially undergoes elastic deformation inwards into the micro-grooves rather than plastic deformation outwards. This avoids the bulging deformation at the bottom of the frame body when the first bolt is tightened, thereby ensuring close contact between the frame body and the mounting surface and maintaining the stability of the beam direction. This design is one of the key structures for improving the installation accuracy and long-term reliability of the frame, and is especially suitable for laser equipment that requires frequent adjustments or long-term stable operation. Attached Figure Description

[0027] Figure 1This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the back structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the lens holder structure of this utility model;

[0030] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0031] Figure 5 This is a top-section structural diagram of the present invention;

[0032] Figure 6 This is a schematic diagram illustrating the adjustment of the main body of the eyeglass frame of this utility model.

[0033] In the diagram: 1. Frame body; 2. Mounting hole; 3. First bolt; 4. Double washers; 5. Second bolt; 6. Single washer; 7. Support limit seat; 8. Lens holder; 9. Pressure relief groove; 10. Shrinkage groove; 11. Support platform; 12. Anti-slip texture; 13. Lens body; 14. Micro-groove. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] The embodiments of this utility model will be described below based on its overall structure.

[0036] Example 1:

[0037] A mirror frame with adjustable laser beam direction, such as Figures 1-6As shown, the device includes a frame body 1, with a lens holder 8 extending through its outer surface. The inner hole of the lens holder 8 is an eccentric oblique hole, meaning its axis intersects with the axis of the lens holder 8. Three support platforms 11 are fixed inside the lens holder 8, arranged in a circular array. A lens body 13 is connected between the three support platforms 11. The lens body 13 is bonded to one of the support platforms 11 using adhesive, and it contacts the other two support platforms 11. All three support platforms 11 and the lens body 13 are inclined. The inner hole of the lens holder 8 and the lens body 13... The entire structure features an axial tilt design, allowing operators to adjust the tilt angle of the lens body by rotating the lens mount 8. This converts circular motion into a linear change in the beam angle, enabling two-dimensional fine-tuning of the laser beam's pitch and yaw angles. The lens mount 8 has three stress relief slots 9 on its outer ring, arranged in a circular array. A shrinkage groove 10 is located inside the upper part of the lens mount 8. A second bolt 5 passes through the upper side of one side of the frame body 1, threadedly connecting to the frame body 1. A single washer 6 is fitted onto the outside of the second bolt 5. A spring washer is used. A support limiting seat 7 is connected to the upper part of the frame body 1. The support limiting seat 7 is made of polytetrafluoroethylene (PTFE). During assembly, the lens body 13 is glued to one of the support platforms 11. The other two support platforms 11 only contact the lens body 13, not fix it. After the glue cures, the lens holder 8 is placed into the frame body 1. Then, by tightening the second bolt 5, the upper part of the frame body 1 deforms, clamping the lens holder 8. While the lens holder 8 is clamped, the pressure is evenly distributed through the pressure relief groove 9 and the shrinkage groove 10. The pressure is evenly applied to the lens body 13 through the three support platforms 11, so that the other two support platforms 11 without glue can be tightly fitted to the side wall of the lens body 13 to complete the locking. The three support platforms 11 form a stable triangular structure, ensuring that the radial and axial degrees of freedom of the lens body 13 are fully constrained. This avoids the problem of traditional frames relying entirely on glue for fixation, reduces the influence of surface shape and glue thermal expansion on the optical path, and improves the stability and reliability of the frame. During this process, the tightening force of the second bolt 5 is limited by the support limit seat 7 to prevent the lens body 13 from being crushed.

[0038] See Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 In the above embodiment, mounting holes 2 are provided on both sides of the top of the frame body 1. The mounting holes 2 are oblong holes, the width of the mounting holes 2 is greater than the diameter of the first bolt 3, and the length of the mounting holes 2 is greater than the width of the mounting holes 2. The operator can rotate the frame body 1 on a horizontal plane, such as... Figure 5As shown, this allows for coordinated adjustment and compensation of the sway angle; two first bolts 3 are respectively installed inside the two mounting holes 2, and double washers 4 are sleeved on the outside of the first bolts 3, which are a flat washer and a spring washer respectively; a micro-groove 14 is opened at the bottom of the frame body 1, and the frame body 1 is fastened to the mounting platform by threading the first bolts 3 through the mounting holes 2. The micro-groove 14 disperses stress and guides the elastic deformation of the frame body 1 through its geometric structure, thus avoiding the bulging deformation of the bottom of the frame body 1 when the first bolts 3 are tightened, thereby ensuring close contact between the frame body 1 and the mounting surface and maintaining the stability of the beam direction.

[0039] Example 2:

[0040] Based on the above embodiment one, in order to expand the scope of application, the following settings are now adopted.

[0041] See Figures 1-6 In the above embodiments, the frame body 1 is made of aluminum alloy or stainless steel, and the lens holder 8 is made of brass or aluminum alloy. In high-load scenarios, such as large-sized lenses, the frame body is made of stainless steel and the lens holder is made of brass, which has high wear resistance, corrosion resistance and good weather resistance. In light-load scenarios, both the frame body and the lens holder are made of aluminum alloy, which has the advantages of lightweight, corrosion resistance and low cost.

[0042] Example 3:

[0043] Based on the above embodiment one, the following settings are made for ease of operation.

[0044] See Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 In the above embodiment, the outer ring of the lens holder 8 is provided with anti-slip texture 12. The anti-slip texture 12 provides friction, making the operation more stable for the operator and preventing the lens holder 8 from slipping and affecting the operation accuracy.

[0045] The implementation principle of this utility model is as follows: First, the frame body 1 is fastened to the mounting surface by the first bolt 3 passing through the mounting hole 2 and threaded connection. The micro-groove 14, through its geometric structure, disperses stress and guides the elastic deformation of the frame body 1, avoiding the bulging deformation of the bottom of the frame body 1 when the first bolt 3 is tightened, thereby ensuring close contact between the frame body 1 and the mounting surface and maintaining the stability of the beam direction. During assembly, the lens body 13 is glued and fixed to one of the support platforms 11, while the other two support platforms 11 only contact the lens body 13 and are not fixed to it. After the glue cures, the lens holder 8 is placed into the frame body 1, and then the upper part of the frame body 1 is tightened by tightening the second bolt 5. The deformation clamps the lens holder 8. While the lens holder 8 is clamped, the pressure is evenly distributed through the pressure relief groove 9 and the shrinkage groove 10, so that the pressure can be evenly applied to the lens body 13 through the three support platforms 11. This allows the other two support platforms 11 without glue to fit tightly against the side wall of the lens body 13 to complete the locking. The three support platforms 11 form a stable triangular structure, ensuring that the radial and axial degrees of freedom of the lens body 13 are completely constrained. This avoids the problem of traditional frames relying entirely on glue for fixation, reduces the influence of surface shape and glue thermal expansion on the optical path, and improves the stability and reliability of the frame. During this process, the tightening force of the second bolt 5 is limited by the support limit seat 7 to prevent the lens body 13 from being crushed.

[0046] When the angle of the lens body 13 needs to be adjusted, the operator loosens the first bolt 3 and the second bolt 5, allowing the frame body 1 and lens mount 8 to rotate freely without falling off. The inner hole of the lens mount 8 and the lens body 13 are designed with an axial offset. The operator can adjust the orientation of the lens body by rotating the lens mount 8, converting the circular motion into a linear change in the beam angle, thus achieving two-dimensional fine adjustment of the pitch and yaw angles of the laser beam. During this process, the anti-slip texture 12 provides friction, making the operator's operation more stable and preventing the lens mount 8 from slipping and affecting the accuracy of operation. Furthermore, the operator can rotate the frame body 1 on a horizontal plane. Figure 5 As shown in the figure, the yaw angle is adjusted in a coordinated manner to meet the debugging requirements of high-precision optical experiments and laser equipment.

[0047] Once the adjustment angle is determined, the first bolt 3 and the second bolt 5 can be tightened to lock and limit the frame body 1 and the lens holder 8, preventing further deflection and displacement, thus ensuring stability during use. Furthermore, the stability of the first bolt 3 and the second bolt 5 is increased by the double shims 4 and the single shim 6, respectively, reducing the impact of vibration on the first bolt 3 and the second bolt 5 and preventing the frame from becoming loose.

[0048] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A mirror frame with adjustable laser beam direction, comprising a frame body (1), characterized in that: The outer surface of the frame body (1) is perforated by a lens holder (8), and three support platforms (11) are fixed inside the lens holder (8). The three support platforms (11) are connected to the lens body (13). The outer ring of the lens holder (8) is provided with three pressure relief slots (9). The upper part of the lens holder (8) is provided with a shrinkage groove (10). The upper part of one side of the frame body (1) is perforated by a second bolt (5). The upper part of the frame body (1) is connected to a support limiting seat (7). The top two sides of the frame body (1) are provided with mounting holes (2), and two first bolts (3) are respectively provided inside the two mounting holes (2). The bottom of the frame body (1) is provided with a micro-groove (14).

2. The mirror frame with adjustable laser beam direction according to claim 1, characterized in that: The first bolt (3) is fitted with a double washer (4), which is a flat washer and a spring washer respectively. The second bolt (5) is fitted with a single washer (6), which is a spring washer.

3. The mirror frame with adjustable laser beam direction according to claim 2, characterized in that: The support and limiting seat (7) is made of polytetrafluoroethylene material, and the second bolt (5) is threadedly connected to the frame body (1).

4. The mirror frame with adjustable laser beam direction according to claim 2, characterized in that: The mounting hole (2) is an oblong hole, and the width of the mounting hole (2) is greater than the diameter of the first bolt (3), and the length of the mounting hole (2) is greater than the width of the mounting hole (2).

5. The mirror frame with adjustable laser beam direction according to claim 1, characterized in that: The inner hole of the lens holder (8) is an eccentric oblique hole, that is, the axis of the inner hole intersects with the axis of the lens holder (8).

6. The mirror frame with adjustable laser beam direction according to claim 5, characterized in that: The lens body (13) is bonded and fixed to one of the support platforms (11) by dispensing adhesive, and the lens body (13) is in contact with the other two support platforms (11). The three support platforms (11) are arranged in a ring array, and the three support platforms (11) and the lens body (13) are all inclined.

7. The mirror frame with adjustable laser beam direction according to claim 1, characterized in that: The pressure relief slots (9) are provided in three ways, and the three pressure relief slots (9) are arranged in a ring array.

8. The mirror frame with adjustable laser beam direction according to claim 6, characterized in that: The frame body (1) is made of aluminum alloy or stainless steel, and the lens holder (8) is made of brass or aluminum alloy.

9. The mirror frame with adjustable laser beam direction according to claim 8, characterized in that: The outer ring of the lens holder (8) is provided with anti-slip texture (12).

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