A four-dimensional adjustment device for an optical reference mirror

Abstract

This invention discloses a four-dimensional adjustment device for an optical reference mirror, solving the technical problem that traditional optical lens systems cannot quickly and accurately establish an optical reference during adjustment. The invention includes a mechanical interface adapter plate, a reference mirror mounting plate, a reference mirror cover, and a scribed reference mirror. The reference mirror cover is equipped with a radial adjustment mechanism for radially adjusting the scribed reference mirror. An adjustment mechanism for axial movement and rotation around a plane perpendicular to the reference axis is provided between the mechanical interface adapter plate and the reference mirror mounting plate. This invention adjusts the optical reference mirror in four directions: axial movement, rotation around a plane perpendicular to the reference axis, and radial movement. It can be used to establish a high-precision optical reference in optomechanical assembly and adjustment. This invention can quickly position the reference mirror near the optical center, and then further fine-tune it to more efficiently align it with the mechanical center of the optical axis, making adjustment more efficient and convenient.

Description

Technical Field

[0001] This invention belongs to the field of optomechanical assembly and testing technology, specifically relating to a four-dimensional adjustment device for an optical reference mirror. Background Technology

[0002] Optomechanics, short for optoelectronic precision instruments and machinery, is a comprehensive discipline that intersects with precision mechanics, electronics, optics, automatic control, and computer technology. Its main research directions are the intelligentization, miniaturization, integration, and networking of instruments. To achieve high-precision specifications in an optomechanical system, high-precision assembly and adjustment of the optical lens system are required. This high-precision assembly and adjustment of the optical lens system relies on a high-precision optical reference. Currently, traditional four-dimensional adjustment frame devices for optical reference lenses cannot quickly and accurately establish an optical reference because the interfaces left cannot be quickly positioned near the optical center.

[0003] Therefore, designing a four-dimensional adjustment device for an optical reference mirror to quickly and accurately establish an optical reference during the adjustment of the optical lens system has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a four-dimensional adjustment device for an optical reference mirror, so as to solve the technical problem that traditional optical lens systems cannot quickly and accurately establish an optical reference during adjustment.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An optical reference mirror four-dimensional adjustment device includes a mechanical interface adapter plate, a reference mirror mounting plate disposed on the mechanical interface adapter plate, a reference mirror cover, and a scribed reference mirror mounted on the reference mirror mounting plate via the reference mirror cover; the reference mirror cover is provided with a radial adjustment mechanism for radially adjusting the scribed reference mirror, and an adjustment mechanism is provided between the mechanical interface adapter plate and the reference mirror mounting plate for axial movement of the scribed reference mirror and rotation in two directions around a plane perpendicular to the reference axis.

[0007] Furthermore, the reference mirror mounting plate is provided with a mounting boss, and the reference mirror with engraved lines is press-fitted onto the mounting boss through the reference mirror cover.

[0008] Furthermore, the reference mirror mounting plate and the mounting boss are both annular and coaxially distributed. The inner diameters of the reference mirror mounting plate and the mounting boss are the same, and the inner diameter of the mounting boss is smaller than the outer diameter of the reference mirror with scribe lines. A circular through hole coaxially distributed with the mounting boss is opened on the top wall of the reference mirror cover. The diameter of the circular through hole is smaller than the outer diameter of the reference mirror with scribe lines. A through hole coaxially distributed with the reference mirror mounting plate is opened on the mechanical interface adapter plate.

[0009] Furthermore, a first annular step is formed between the reference mirror mounting plate and the mounting boss, and a second step is provided on the reference mirror cover that is adapted to the first step and fits tightly onto the first step. An open cavity for accommodating the etched reference mirror is formed between the reference mirror cover and the mounting boss.

[0010] Furthermore, a radial positioning ring for the reference mirror is fitted onto the sidewall of the etched reference mirror, and a gap is formed between the radial positioning ring and the sidewall of the open chamber.

[0011] Furthermore, the radial adjustment mechanism includes several adjusting screw holes evenly distributed circumferentially on the side wall of the reference mirror cover, and adjusting screws threaded into the adjusting screw holes, with the adjusting screws contacting the radial positioning ring of the reference mirror.

[0012] Furthermore, an elastic pressure ring is provided between the top surface of the etched reference mirror and the top surface of the open cavity.

[0013] Furthermore, several fixing wing plates are evenly distributed around the outer periphery of the reference mirror cover, and the fixing wing plates are fixed to the reference mirror mounting plate by screws.

[0014] Furthermore, the adjustment mechanism includes several axial fine-tuning nuts passing through the mechanical interface adapter plate, an axial fine-tuning screw passing through the reference mirror mounting plate and threadedly connected to the axial fine-tuning nuts, and a compression spring passing through the axial fine-tuning screw and located between the axial fine-tuning nut and the reference mirror mounting plate.

[0015] Furthermore, the adjustment mechanism also includes a conical washer and a spherical washer adapted to the conical washer, which are mounted on the axial fine-thread screw. The conical washer and the spherical washer are stacked between the reference mirror mounting plate and the head of the axial fine-thread screw.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention has a simple structure, a scientific and reasonable design, and is easy to use. It is used to adjust the optical reference mirror in four directions: axial movement, rotation around a plane perpendicular to the reference axis, and radial movement. It can be used to establish a high-precision optical reference in optomechanical assembly. The four-dimensional adjustment device of this invention can quickly position the optical reference mirror near the optical center, and then fine-tune it to more efficiently align it with the mechanical center of the optical axis, making the adjustment more efficient and convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the assembled version of the present invention.

[0020] Figure 3 This is a cross-sectional view of the present invention.

[0021] Figure 4 This is another cross-sectional view of the present invention (in which the etched reference mirror, the radial positioning ring of the reference mirror, and the elastic pressure ring are not shown).

[0022] Figure 5 This is a schematic diagram of the reference mirror cap of the present invention.

[0023] The names corresponding to the reference numerals in the attached figures are as follows:

[0024] 1-Mechanical interface adapter plate, 2-Reference mirror mounting plate, 3-Axial fine-adjustment nut, 4-Compression spring, 5-Axial fine-adjustment fine-thread screw, 6-Conical washer, 7-Spherical washer, 8-Reference mirror with engraved lines, 9-Reference mirror radial positioning ring, 10-Elastic pressure ring, 11-Reference mirror cover, 12-Adjusting screw, 13-Screw, 14-Adjusting screw hole, 15-Mounting boss, 16-First step, 17-Second step, 18-Fixed wing plate, 19-Retaining ring, 20-Adapter plate through hole, 21-Open chamber. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0026] Example 1, as Figure 1-5 As shown, the present invention provides a four-dimensional adjustment device for an optical reference mirror, including a mechanical interface adapter plate 1, a reference mirror mounting plate 2 disposed on the mechanical interface adapter plate 1, a reference mirror cover 11, and a scribe-lined reference mirror 8 mounted on the reference mirror mounting plate 2 via the reference mirror cover 11; the reference mirror cover 11 is provided with a radial adjustment mechanism for radially adjusting the scribe-lined reference mirror 8, and an adjustment mechanism is provided between the mechanical interface adapter plate 1 and the reference mirror mounting plate 2 for axial movement of the scribe-lined reference mirror 8 and rotation in two directions around a plane perpendicular to the reference axis.

[0027] This invention has a simple structure, a scientific and reasonable design, and is easy to use. It is used to adjust the optical reference mirror in four directions: axial movement, rotation around a plane perpendicular to the reference axis, and radial movement. It can be used to establish a high-precision optical reference in optomechanical assembly. The four-dimensional adjustment device of this invention can quickly position the optical reference mirror near the optical center, and then fine-tune it to more efficiently align it with the mechanical center of the optical axis, making the adjustment more efficient and convenient.

[0028] Example 2, as Figure 1-5 As shown, the present invention provides a four-dimensional adjustment device for an optical reference mirror, comprising a mechanical interface adapter plate 1, a reference mirror mounting plate 2 disposed on the mechanical interface adapter plate 1, a reference mirror cover 11, and a scribe-lined reference mirror 8 mounted on the reference mirror mounting plate 2 via the reference mirror cover 11; the reference mirror cover 11 is provided with a radial adjustment mechanism for radially adjusting the scribe-lined reference mirror 8, and an adjustment mechanism for axial movement and rotation around a plane perpendicular to the reference axis is provided between the mechanical interface adapter plate 1 and the reference mirror mounting plate 2. The reference mirror mounting plate 2 is provided with a mounting boss 15, and the scribe-lined reference mirror 8 is press-fitted onto the mounting boss 15 via the reference mirror cover 11.

[0029] Based on Embodiment 1, this Embodiment 2 provides a more preferred connection structure between the reference mirror mounting plate 2 and the scribe-lined reference mirror 8. Specifically, the reference mirror mounting plate 2 is provided with a mounting boss 15, and the scribe-lined reference mirror 8 is press-fitted onto the mounting boss 15 via the reference mirror cover 11. Through this arrangement, the surface of the mounting boss 15 is subjected to high-precision grinding to achieve high flatness. The mounting of the scribe-lined reference mirror 8 onto the boss surface of the mounting boss 15 effectively prevents uneven mounting surfaces from affecting the surface accuracy of the reference mirror.

[0030] Example 3, as Figure 1-5 As shown, the present invention provides a four-dimensional adjustment device for an optical reference mirror, comprising a mechanical interface adapter plate 1, a reference mirror mounting plate 2 disposed on the mechanical interface adapter plate 1, a reference mirror cover 11, and a scribe-lined reference mirror 8 mounted on the reference mirror mounting plate 2 via the reference mirror cover 11; the reference mirror cover 11 is provided with a radial adjustment mechanism for radially adjusting the scribe-lined reference mirror 8, and an adjustment mechanism for axial movement and rotation around a plane perpendicular to the reference axis is provided between the mechanical interface adapter plate 1 and the reference mirror mounting plate 2. The reference mirror mounting plate 2 is provided with a mounting boss 15, and the scribe-lined reference mirror 8 is press-fitted onto the mounting boss 15 via the reference mirror cover 11. The reference mirror mounting plate 2 and the mounting boss 15 are both annular and coaxially distributed. The reference mirror mounting plate 2 and the mounting boss 15 have the same inner diameter, and the inner diameter of the mounting boss 15 is smaller than the outer diameter of the reference mirror 8 with scribe lines. The top wall of the reference mirror cover 11 has a circular through hole that is coaxially distributed with the mounting boss 15. The diameter of the circular through hole is smaller than the outer diameter of the reference mirror 8 with scribe lines. The mechanical interface adapter plate 1 has an adapter plate through hole 20 that is coaxially distributed with the reference mirror mounting plate 2.

[0031] Based on Embodiment 2, this Embodiment 3 provides a more preferred structure for the reference mirror mounting plate 2, mounting boss 15, reference mirror cover 11, and mechanical interface adapter plate 1. Specifically, the reference mirror mounting plate 2 and mounting boss 15 are both annular and coaxially distributed, with the same inner diameter. The inner diameter of the mounting boss 15 is smaller than the outer diameter of the etched reference mirror 8. The top wall of the reference mirror cover 11 has a circular through hole coaxially distributed with the mounting boss 15, and the diameter of the circular through hole is smaller than the outer diameter of the etched reference mirror 8. The mechanical interface adapter plate 1 has an adapter plate through hole 20 coaxially distributed with the reference mirror mounting plate 2. Through the above configuration, the etched reference mirror 8 can be installed more compactly and facilitates the establishment of a high-precision optical reference in optomechanical assembly, enabling it to be quickly positioned near the optical center.

[0032] Example 4, as Figure 1-5 As shown, the present invention provides a four-dimensional adjustment device for an optical reference mirror, comprising a mechanical interface adapter plate 1, a reference mirror mounting plate 2 disposed on the mechanical interface adapter plate 1, a reference mirror cover 11, and a scribe-lined reference mirror 8 mounted on the reference mirror mounting plate 2 via the reference mirror cover 11; the reference mirror cover 11 is provided with a radial adjustment mechanism for radially adjusting the scribe-lined reference mirror 8, and an adjustment mechanism for axial movement and rotation around a plane perpendicular to the reference axis is provided between the mechanical interface adapter plate 1 and the reference mirror mounting plate 2. The reference mirror mounting plate 2 is provided with a mounting boss 15, and the scribe-lined reference mirror 8 is press-fitted onto the mounting boss 15 via the reference mirror cover 11. A first annular step 16 is formed between the reference mirror mounting plate 2 and the mounting boss 15. The reference mirror cover 11 is provided with a second step 17 that is adapted to the first step 16 and fits tightly onto the first step 16. An open chamber 21 for accommodating the etched reference mirror 8 is formed between the reference mirror cover 11 and the mounting boss 15.

[0033] Based on Embodiment 2, this embodiment 4 provides a more preferred connection structure between the reference mirror mounting plate 2 and the reference mirror cover 11. Specifically, a first annular step 16 is formed between the reference mirror mounting plate 2 and the mounting boss 15. The reference mirror cover 11 has a second step 17 that fits and fits snugly onto the first step 16. An open chamber 21 for accommodating the etched reference mirror 8 is formed between the reference mirror cover 11 and the mounting boss 15. With this configuration, the reference mirror mounting plate 2 can be more compactly and precisely fitted onto the mounting boss 15, and the etched reference mirror 8 is located within the open chamber 21, thus ensuring the adjustment accuracy of the etched reference mirror 8.

[0034] Example 5, as Figure 1-5As shown, the present invention provides a four-dimensional adjustment device for an optical reference mirror, comprising a mechanical interface adapter plate 1, a reference mirror mounting plate 2 disposed on the mechanical interface adapter plate 1, a reference mirror cover 11, and a scribe-lined reference mirror 8 mounted on the reference mirror mounting plate 2 via the reference mirror cover 11; the reference mirror cover 11 is provided with a radial adjustment mechanism for radially adjusting the scribe-lined reference mirror 8, and an adjustment mechanism for axial movement and rotation around a plane perpendicular to the reference axis is provided between the mechanical interface adapter plate 1 and the reference mirror mounting plate 2. The reference mirror mounting plate 2 is provided with a mounting boss 15, and the scribe-lined reference mirror 8 is press-fitted onto the mounting boss 15 via the reference mirror cover 11. A first annular step 16 is formed between the reference mirror mounting plate 2 and the mounting boss 15. The reference mirror cover 11 has a second step 17 that fits and fits snugly onto the first step 16. An open chamber 21 for accommodating the scribe-lined reference mirror 8 is formed between the reference mirror cover 11 and the mounting boss 15. A radial positioning ring 9 is fitted onto the side wall of the scribe-lined reference mirror 8, and a gap is formed between the radial positioning ring 9 and the side wall of the open chamber 21.

[0035] Based on Embodiment 4, this embodiment 5 provides a more preferred structure for the scribe-lined reference mirror 8. Specifically, a radial positioning ring 9 is fitted onto the side wall of the scribe-lined reference mirror 8, and a gap is formed between the radial positioning ring 9 and the side wall of the open chamber 21. Through this arrangement, the radial positioning ring 9 protects the scribe-lined reference mirror 8, preventing damage to the scribe-lined reference mirror 8 during radial adjustment. The gap between the radial positioning ring 9 and the side wall of the open chamber 21 facilitates radial adjustment of the scribe-lined reference mirror 8.

[0036] Example 6, as Figure 1-5As shown, the present invention provides a four-dimensional adjustment device for an optical reference mirror, comprising a mechanical interface adapter plate 1, a reference mirror mounting plate 2 disposed on the mechanical interface adapter plate 1, a reference mirror cover 11, and a scribe-lined reference mirror 8 mounted on the reference mirror mounting plate 2 via the reference mirror cover 11; the reference mirror cover 11 is provided with a radial adjustment mechanism for radially adjusting the scribe-lined reference mirror 8, and an adjustment mechanism for axial movement and rotation around a plane perpendicular to the reference axis is provided between the mechanical interface adapter plate 1 and the reference mirror mounting plate 2. The reference mirror mounting plate 2 is provided with a mounting boss 15, and the scribe-lined reference mirror 8 is press-fitted onto the mounting boss 15 via the reference mirror cover 11. A first annular step 16 is formed between the reference mirror mounting plate 2 and the mounting boss 15. A second step 17, adapted to and tightly fitted onto the first step 16, is provided on the reference mirror cover 11. An open chamber 21 for accommodating the scribe-lined reference mirror 8 is formed between the reference mirror cover 11 and the mounting boss 15. A radial positioning ring 9 is fitted onto the side wall of the scribe-lined reference mirror 8, with a gap between the radial positioning ring 9 and the side wall of the open chamber 21. The radial adjustment mechanism includes several adjusting screw holes 14 evenly distributed circumferentially on the side wall of the reference mirror cover 11, and adjusting screws 12 threaded into the adjusting screw holes 14. The adjusting screws 12 contact the radial positioning ring 9.

[0037] Based on Embodiment 5, this embodiment 6 provides a more preferred structure for the radial adjustment mechanism. Specifically, the radial adjustment mechanism includes a plurality of adjusting screw holes 14 evenly distributed circumferentially on the side wall of the reference mirror cover 11, and adjusting screws 12 threaded into the adjusting screw holes 14. The adjusting screws 12 are in contact with the radial positioning ring 9 of the reference mirror. Preferably, there is an even number of adjusting screw holes 14, wherein a gap is left between the reference mirror cover and the etched reference mirror 8 so that the etched reference mirror 8 can move radially through the adjusting screws 12. The adjusting screws are symmetrically installed through the adjusting screw holes 14 on the reference mirror cover. The radial positioning ring 9 of the reference mirror can protect the etched reference mirror 8 from direct contact with the adjusting screws 12 and prevent damage to the etched reference mirror 8 during radial adjustment.

[0038] Example 7, as Figure 1-5As shown, the present invention provides a four-dimensional adjustment device for an optical reference mirror, comprising a mechanical interface adapter plate 1, a reference mirror mounting plate 2 disposed on the mechanical interface adapter plate 1, a reference mirror cover 11, and a scribe-lined reference mirror 8 mounted on the reference mirror mounting plate 2 via the reference mirror cover 11; the reference mirror cover 11 is provided with a radial adjustment mechanism for radially adjusting the scribe-lined reference mirror 8, and an adjustment mechanism for axial movement and rotation around a plane perpendicular to the reference axis is provided between the mechanical interface adapter plate 1 and the reference mirror mounting plate 2. The reference mirror mounting plate 2 is provided with a mounting boss 15, and the scribe-lined reference mirror 8 is press-fitted onto the mounting boss 15 via the reference mirror cover 11. A first annular step 16 is formed between the reference mirror mounting plate 2 and the mounting boss 15. The reference mirror cover 11 has a second step 17 that fits and fits snugly onto the first step 16. An open cavity 21 for accommodating the scribe-lined reference mirror 8 is formed between the reference mirror cover 11 and the mounting boss 15. An elastic pressure ring 10 is provided between the top surface of the scribe-lined reference mirror 8 and the inner top surface of the open cavity 21.

[0039] Based on Embodiment 4, Embodiment 7 provides a more preferred connection structure between the scribed reference mirror 8 and the open cavity 21. Specifically, an elastic pressure ring 10 is provided between the top surface of the scribed reference mirror 8 and the inner top surface of the open cavity 21. By providing an elastic pressure ring 10 between the top surface of the scribed reference mirror 8 and the inner top surface of the open cavity 21, the scribed reference mirror 8 can be protected. Furthermore, the elastic pressure ring 10 can stably press the scribed reference mirror 8 into the open cavity 21 formed by the mounting boss 15 and the reference mirror cover 11, without affecting the radial adjustment mechanism's radial adjustment of the scribed reference mirror 8.

[0040] Example 8, as Figure 1-5 As shown, the present invention provides a four-dimensional adjustment device for an optical reference mirror, comprising a mechanical interface adapter plate 1, a reference mirror mounting plate 2 disposed on the mechanical interface adapter plate 1, a reference mirror cover 11, and a scribed reference mirror 8 mounted on the reference mirror mounting plate 2 via the reference mirror cover 11; the reference mirror cover 11 is provided with a radial adjustment mechanism for radially adjusting the scribed reference mirror 8, and an adjustment mechanism is provided between the mechanical interface adapter plate 1 and the reference mirror mounting plate 2 for axial movement and rotation of the scribed reference mirror 8 in two directions perpendicular to the reference axis. A plurality of fixed wing plates 18 are evenly distributed on the outer periphery of the reference mirror cover 11, and the fixed wing plates 18 are fixed to the reference mirror mounting plate 2 by screws 13.

[0041] Based on Embodiment 1, this embodiment 8 provides a more preferred connection structure between the reference mirror cover 11 and the reference mirror mounting plate 2. Specifically, the reference mirror cover 11 has several fixing wing plates 18 evenly distributed around its outer periphery, and the fixing wing plates 18 are fixed to the reference mirror mounting plate 2 by screws 13. This structure ensures that the reference mirror cover 11 is securely mounted on the reference mirror mounting plate 2, guaranteeing the stability and accuracy of the overall structure.

[0042] Example 9, as Figure 1-5 As shown, the present invention provides a four-dimensional adjustment device for an optical reference mirror, comprising a mechanical interface adapter plate 1, a reference mirror mounting plate 2 disposed on the mechanical interface adapter plate 1, a reference mirror cover 11, and a etched reference mirror 8 mounted on the reference mirror mounting plate 2 via the reference mirror cover 11; the reference mirror cover 11 is provided with a radial adjustment mechanism for radially adjusting the etched reference mirror 8, and an adjustment mechanism is provided between the mechanical interface adapter plate 1 and the reference mirror mounting plate 2 for axial movement and rotation of the etched reference mirror 8 in two directions perpendicular to the reference axis. The adjustment mechanism includes a plurality of axial fine-tuning nuts 3 passing through the mechanical interface adapter plate 1, axial fine-tuning screws 5 passing through the reference mirror mounting plate 2 and threadedly connected to the axial fine-tuning nuts 3, and compression springs 4 passing through the axial fine-tuning screws 5 and located between the axial fine-tuning nuts 3 and the reference mirror mounting plate 2.

[0043] Based on Embodiment 1, this embodiment 9 provides a more preferred structure for the adjustment mechanism. Specifically, the adjustment mechanism includes several axial fine-tuning nuts 3 passing through the mechanical interface adapter plate 1, axial fine-tuning screws 5 passing through the reference mirror mounting plate 2 and threadedly connected to the axial fine-tuning nuts 3, and compression springs 4 passing through the axial fine-tuning screws 5 and located between the axial fine-tuning nuts 3 and the reference mirror mounting plate 2. With the above structure, axial movement adjustment of the graduated reference mirror 8 can be easily achieved.

[0044] Example 10, as Figure 1-5As shown, the present invention provides a four-dimensional adjustment device for an optical reference mirror, comprising a mechanical interface adapter plate 1, a reference mirror mounting plate 2 disposed on the mechanical interface adapter plate 1, a reference mirror cover 11, and a etched reference mirror 8 mounted on the reference mirror mounting plate 2 via the reference mirror cover 11; the reference mirror cover 11 is provided with a radial adjustment mechanism for radially adjusting the etched reference mirror 8, and an adjustment mechanism is provided between the mechanical interface adapter plate 1 and the reference mirror mounting plate 2 for axial movement and rotation of the etched reference mirror 8 in two directions perpendicular to the reference axis. The adjustment mechanism includes a plurality of axial fine-tuning nuts 3 passing through the mechanical interface adapter plate 1, axial fine-tuning screws 5 passing through the reference mirror mounting plate 2 and threadedly connected to the axial fine-tuning nuts 3, and compression springs 4 passing through the axial fine-tuning screws 5 and located between the axial fine-tuning nuts 3 and the reference mirror mounting plate 2. The adjustment mechanism also includes a conical washer 6 and a spherical washer 7 adapted to the conical washer 6, which are mounted on the axial fine-thread screw 5. The conical washer 6 and the spherical washer 7 are stacked between the reference mirror mounting plate 2 and the head of the axial fine-thread screw 5.

[0045] Based on Example 9, Embodiment 10 provides a more preferred structure for the adjustment mechanism. Specifically, the adjustment mechanism further includes a conical washer 6 and a spherical washer 7 adapted to the conical washer 6, which are mounted on the axial fine-pitch screw 5. The conical washer 6 and the spherical washer 7 are stacked between the reference mirror mounting plate 2 and the head of the axial fine-pitch screw 5. With this structure, the axial movement of the reference mirror mounting plate and the rotational adjustment in two directions perpendicular to the axial plane can be achieved by tightening and loosening the axial fine-pitch screw 5 by different amounts. The fine-pitch screw 5 can be aligned using the conical washer and the spherical washer.

[0046] Example 11, as Figure 1-5As shown, the present invention provides a four-dimensional adjustment device for an optical reference mirror, comprising a mechanical interface adapter plate 1, a reference mirror mounting plate 2 disposed on the mechanical interface adapter plate 1, a reference mirror cover 11, and a etched reference mirror 8 mounted on the reference mirror mounting plate 2 via the reference mirror cover 11; the reference mirror cover 11 is provided with a radial adjustment mechanism for radially adjusting the etched reference mirror 8, and an adjustment mechanism is provided between the mechanical interface adapter plate 1 and the reference mirror mounting plate 2 for axial movement and rotation of the etched reference mirror 8 in two directions perpendicular to the reference axis. The adjustment mechanism includes a plurality of axial fine-tuning nuts 3 passing through the mechanical interface adapter plate 1, axial fine-tuning screws 5 passing through the reference mirror mounting plate 2 and threadedly connected to the axial fine-tuning nuts 3, and compression springs 4 passing through the axial fine-tuning screws 5 and located between the axial fine-tuning nuts 3 and the reference mirror mounting plate 2. The adjustment mechanism also includes a conical washer 6 and a spherical washer 7 adapted to the conical washer 6, which are mounted on the axial fine-pitch screw 5. The conical washer 6 and the spherical washer 7 are stacked between the reference mirror mounting plate 2 and the head of the axial fine-pitch screw 5. The reference mirror mounting plate 2 has a screw mounting hole adapted to the axial fine-pitch screw 5, and the axial fine-pitch screw 5 is inserted into the screw mounting hole. Preferably, the mechanical interface adapter plate 1 has a nut mounting hole adapted to the axial fine-pitch nut 3, and the axial fine-pitch nut 3 is inserted into the nut mounting hole. The axial fine-pitch nut 3 has a retaining ring 19, the outer diameter of which is larger than the inner diameter of the nut mounting hole. Preferably, the mechanical interface adapter plate 1 has an adapter plate through hole 20 coaxially distributed with the reference mirror mounting plate 2, and the axial fine-pitch nuts 3 are evenly distributed around the adapter plate through hole 20.

[0047] Based on Example 10, this embodiment 11 provides a more preferred connection structure between the reference mirror mounting plate 2, the axial fine-pitch screw 5, the axial fine-pitch nut 3, and the mechanical interface adapter plate 1. Specifically, the reference mirror mounting plate 2 has a screw mounting hole adapted to the axial fine-pitch screw 5, and the axial fine-pitch screw 5 passes through the screw mounting hole. Preferably, the mechanical interface adapter plate 1 has a nut mounting hole adapted to the axial fine-pitch nut 3, and the axial fine-pitch nut 3 passes through the nut mounting hole. The axial fine-pitch nut 3 has a retaining ring 19, the outer diameter of which is larger than the inner diameter of the nut mounting hole. Preferably, the mechanical interface adapter plate 1 has adapter plate through holes 20 coaxially distributed with the reference mirror mounting plate 2, and the axial fine-pitch nuts 3 are evenly distributed circumferentially around the adapter plate through holes 20. Through the above settings, the overall structure of the adjustment mechanism is more compact, stable, and precise, which can effectively improve the adjustment accuracy of the adjustment mechanism.

[0048] This invention provides a novel reference mirror angle and position adjustment device, comprising a mechanical interface adapter plate, an axial fine-adjustment nut, an axial fine-thread screw, a conical washer, a spherical washer, a compression spring, a reference mirror mounting plate, a reference mirror radial positioning ring, a etched reference mirror, an elastic pressure ring, a reference mirror cover, and a reference mirror radial adjustment screw. The reference mirror mounting plate is designed as a ring with a central mounting boss. The inner diameter of the mounting boss is smaller than the outer diameter of the etched reference mirror, while the outer diameter is larger. The surface of the mounting boss is precision ground to achieve high flatness. The etched reference mirror 8 is mounted on the boss surface, effectively preventing uneven mounting surfaces from affecting the surface accuracy of the reference mirror. Finally, it is secured by the reference mirror cover 11, the elastic pressure ring 10, the reference mirror radial positioning ring 9, and the screw 13. A gap is left between the reference mirror cap and the etched reference mirror 8 to facilitate radial movement of the etched reference mirror 8 via the adjusting screw 12. The adjusting screw is symmetrically installed through the adjusting screw hole 14 on the reference mirror cap. The radial positioning ring 9 of the reference mirror protects the etched reference mirror 8 from direct contact with the adjusting screw 12, preventing damage to the etched reference mirror 8 during radial adjustment. The reference mirror mounting plate is designed with screw assembly holes. The reference mirror mounting plate is connected to the mechanical interface adapter plate 1 via the axial fine-thread screw 5, compression spring 4, conical washer 6, spherical washer 7, and axial fine-thread nut 3. By tightening and loosening the axial fine-thread screw 5 by different amounts, the reference mirror mounting plate can rotate in two directions: axially and perpendicular to the axial plane. The axial fine-thread screw 5 can be adjusted to achieve alignment via the conical washer and spherical washer. The mechanical interface adapter plate can be modified according to the actual situation of the product being assembled. The design retains the nut assembly hole on the mechanical interface adapter plate, and its optical center corresponds to the center of the etched reference mirror.

[0049] This invention enables rapid alignment to the mechanical and optical axis centers, increasing the efficiency of optical assembly. By designing different mechanical interface adapter boards, it can be applied to various devices. It has a simple structure and reliable operation.

[0050] Finally, it should be noted that the above embodiments are merely preferred embodiments of the present invention used to illustrate the technical solutions of the present invention, and are not intended to limit the invention, nor are they intended to limit the patent scope of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. That is to say, any changes or refinements made to the main design concept and spirit of the present invention that are not of substantial significance, but whose technical problems are still consistent with the present invention, should be included within the protection scope of the present invention. In addition, the direct or indirect application of the technical solutions of the present invention to other related technical fields are similarly included within the patent protection scope of the present invention.

Claims

1. A four-dimensional adjustment device for an optical reference mirror, characterized in that, It includes a mechanical interface adapter plate (1), a reference mirror mounting plate (2) provided on the mechanical interface adapter plate (1), a reference mirror cover (11), and a etched reference mirror (8) mounted on the reference mirror mounting plate (2) via the reference mirror cover (11); the reference mirror cover (11) is provided with a radial adjustment mechanism for radially adjusting the etched reference mirror (8), and an adjustment mechanism is provided between the mechanical interface adapter plate (1) and the reference mirror mounting plate (2) for axially moving the etched reference mirror (8) and rotating it in two directions perpendicular to the reference axis plane.

2. The four-dimensional adjustment device for an optical reference mirror according to claim 1, characterized in that, The reference mirror mounting plate (2) is provided with a mounting boss (15), and the reference mirror (8) with engraving is pressed onto the mounting boss (15) through the reference mirror cover (11).

3. The four-dimensional adjustment device for an optical reference mirror according to claim 2, characterized in that, The reference mirror mounting plate (2) and the mounting boss (15) are both annular and coaxially distributed. The reference mirror mounting plate (2) and the mounting boss (15) have the same inner diameter. The inner diameter of the mounting boss (15) is smaller than the outer diameter of the reference mirror (8) with scribe lines. A circular through hole coaxially distributed with the mounting boss (15) is provided on the top wall of the reference mirror cover (11). The diameter of the circular through hole is smaller than the outer diameter of the reference mirror (8) with scribe lines. A through hole (20) coaxially distributed with the reference mirror mounting plate (2) is provided on the mechanical interface adapter plate (1).

4. The four-dimensional adjustment device for an optical reference mirror according to claim 2, characterized in that, A first annular step (16) is formed between the reference mirror mounting plate (2) and the mounting boss (15). The reference mirror cover (11) is provided with a second step (17) that is adapted to the first step (16) and fits tightly onto the first step (16). An open cavity (21) for accommodating the etched reference mirror (8) is formed between the reference mirror cover (11) and the mounting boss (15).

5. The four-dimensional adjustment device for an optical reference mirror according to claim 4, characterized in that, The reference mirror (8) with engraved lines has a radial positioning ring (9) fitted on its side wall, and a gap is formed between the radial positioning ring (9) and the side wall of the open chamber (21).

6. The four-dimensional adjustment device for an optical reference mirror according to claim 5, characterized in that, The radial adjustment mechanism includes several adjusting screw holes (14) evenly distributed on the side wall of the reference mirror cover (11) and adjusting screws (12) threaded into the adjusting screw holes (14). The adjusting screws (12) are in contact with the radial positioning ring (9) of the reference mirror.

7. The four-dimensional adjustment device for an optical reference mirror according to claim 4, characterized in that, An elastic pressure ring (10) is provided between the top surface of the etched reference mirror (8) and the top surface of the open chamber (21).

8. The four-dimensional adjustment device for an optical reference mirror according to claim 1, characterized in that, The outer periphery of the reference mirror cover (11) is evenly distributed with several fixed wing plates (18), and the fixed wing plates (18) are fixed to the reference mirror mounting plate (2) by screws (13).

9. The four-dimensional adjustment device for an optical reference mirror according to claim 1, characterized in that, The adjustment mechanism includes several axial fine-tuning nuts (3) passing through the mechanical interface adapter plate (1), an axial fine-tuning screw (5) passing through the reference mirror mounting plate (2) and threadedly connected to the axial fine-tuning nuts (3), and a compression spring (4) passing through the axial fine-tuning screw (5) and located between the axial fine-tuning nuts (3) and the reference mirror mounting plate (2).

10. A four-dimensional adjustment device for an optical reference mirror according to claim 9, characterized in that, The adjustment mechanism also includes a conical washer (6) and a spherical washer (7) adapted to the conical washer (6) and the spherical washer (7) respectively, which are stacked between the reference mirror mounting plate (2) and the head of the axial fine-tuning screw (5).

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