CN114967038A - Reflecting mirror, mirror frame thereof and mounting method - Google Patents

Abstract

The invention belongs to the technical field of reflector assembly, and relates to a reflector, a reflector frame and an installation method thereof, wherein the reflector comprises an installation frame, an adjusting frame, a connecting assembly and an adjusting assembly, the adjusting frame is provided with a light through hole, and the installation frame is positioned at the periphery of the light through hole; according to the reflector and the mirror frame thereof, the adjusting frame is connected to the mounting frame through the connecting assembly, the axial distance between the adjusting frame and the mounting frame is ensured to be adjustable, one end of the adjusting assembly is arranged on one end of the mounting frame, and the other end of the adjusting assembly is abutted against the adjusting frame, so that the angle of a lens relative to an incident beam is adjusted by acting on the adjusting assembly after the adjusting frame is connected to the mounting frame; according to the reflector mounting method, a normal-temperature lens is fixed on the mirror frame after being stood at a low temperature through a target colloid, and then an assembled semi-finished product is stood at the normal temperature, so that the lens extends under the action of the tension of the target colloid, the surface PV value of the reflector is effectively improved, and the wave front influence of the reflector on incident light beams is reduced.

Description

Reflecting mirror, mirror frame thereof and mounting method

Technical Field

The invention relates to the technical field of reflector assembly, in particular to a reflector, a reflector frame and an installation method.

Background

The mirror plate is a commonly used optical lens, and the mirror frame, which is generally mounted on the mirror frame, is an element for realizing accurate transmission of an optical path. In a laser optical path system, it is often desirable that the wavefront variation of laser light after the beam is reflected by a reflecting mirror is less than λ/10 (where λ is the wavelength of the laser beam). However, in mass production, the PV value of the actual processing surface of the reflector can only reach a level less than λ/4, and the PV value of the reflector is difficult to be increased by the conventional installation method of the reflector, and even the PV value may be further increased by introducing an external mechanical force, which makes it difficult to meet the processing requirement.

Disclosure of Invention

The embodiment of the invention aims to provide a reflector, a mirror frame and an installation method thereof, which are used for solving the technical problem that the conventional optical lens has large influence on the wavefront of an incident beam.

In order to solve the technical problems, the following technical scheme is adopted: the mirror frame of the reflector comprises a mounting frame, an adjusting frame, a connecting assembly and an adjusting assembly, wherein the mounting frame is provided with a first surface and a second surface which are oppositely arranged; the adjusting frame is provided with a connecting surface and an installing surface which are oppositely arranged, and the connecting surface and the installing surface are respectively close to and far away from one surface of the first surface; in the direction from the mounting surface to the connecting surface, the adjusting frame is provided with a light through hole;

the mounting rack is positioned at the periphery of the light through hole and used for mounting the lens frame in an optical system;

the adjusting frame is detachably connected to the mounting frame at one side close to the first surface, and a lens through which incident light beams can pass from the light through hole is arranged on the adjusting frame at one side close to the mounting surface;

the connecting assembly is used for connecting the adjusting frame to the mounting frame and ensuring that the axial distance between the adjusting frame and the mounting frame is adjustable after the adjusting frame is connected to the mounting frame;

one end of the adjusting component is arranged on one end of the mounting frame, and the other end of the adjusting component abuts against the adjusting frame; the adjusting assembly is used for adjusting the adjusting frame to rotate relative to the mounting frame after the adjusting frame is connected to the mounting frame, so as to finally adjust the angle of the lens relative to the incident light beam.

In some embodiments, the mounting bracket includes a first supporting arm and a second supporting arm that are connected in a cross manner, and in a direction from the second surface to the first surface, adjustment holes are formed in ends of the first supporting arm and the second supporting arm that are away from a crossing point of the first supporting arm and the second supporting arm, and the adjustment assembly is inserted into each of the adjustment holes.

In some embodiments, a fulcrum structure is disposed between the mounting bracket and the adjustment bracket at the intersection between the first arm and the second arm, the fulcrum structure being configured to fix an initial distance between the adjustment bracket and the mounting bracket when the adjustment bracket is coupled to the mounting bracket and to provide a pivot point for adjustment of the adjustment assembly.

In some embodiments, a connection line of a projection of a center of the fulcrum structure and a center of the light-passing hole on the connection surface of the adjusting bracket is taken as a symmetry center, the first supporting arm and the second supporting arm are symmetrically arranged, and the adjusting hole on the first supporting arm and the second adjusting hole on the second supporting arm are symmetrically arranged.

In some embodiments, the fulcrum structure includes a distance support, and at an intersection between the first support arm and the second support arm, a first groove is formed on the first surface of the mounting bracket, a second groove corresponding to the first groove is formed on the connecting surface of the adjusting bracket, a part of the distance support is accommodated in the first groove, and a part of the distance support is accommodated in the second groove and is in spherical fit with the second groove.

In some embodiments, inserts are embedded in the connecting surface of the adjusting bracket at positions corresponding to the adjusting holes, at least one insert is provided with a triangular groove, the triangular groove accommodates one end of the adjusting component, and the center of the triangular groove and the center of the second groove are located on the same straight line.

In some embodiments, the connection assembly includes a first threaded member and a resilient member; in the direction from the second surface to the first surface, first connecting holes are formed in the first support arm and the second support arm, second connecting holes corresponding to the first connecting holes are formed in the connecting surface of the adjusting frame, and the first screw piece sleeved with the elastic piece is inserted into the corresponding first connecting holes and the second connecting holes.

In some embodiments, the mounting surface of the adjusting bracket is provided with a mounting groove for mounting a lens, the bottom of the mounting groove is communicated with the light through hole, and the center lines of the mounting groove and the light through hole are positioned on the same straight line; and a containing groove is formed in the bottom of the mounting groove and is used for filling colloid which adheres the lens to the bottom of the mounting groove.

In order to solve the above technical problem, an embodiment of the present invention further provides a reflector, which adopts the following technical solutions: the reflector comprises a lens and the reflector frame, wherein the lens is mounted on the mounting surface of the reflector frame.

In order to solve the above technical problem, an embodiment of the present invention further provides a method for mounting a reflector, which adopts the following technical solutions: the reflector comprises a frame and a lens, and the installation method of the reflector comprises the following steps:

preparing a lens to be installed and a spectacle frame to be installed at a first temperature;

placing the prepared mirror frame for a preset time at a preset temperature so as to precool and contract the mirror frame; wherein the preset temperature is lower than the first temperature;

fixing a lens to be installed at a first temperature on a mirror frame at a preset temperature through a target colloid, and curing the target colloid to form a semi-finished product of a reflector;

placing the semi-finished product of the reflector at a second temperature until the mirror frame of the reflector is restored to the original volume to form a finished product of the reflector; wherein the second temperature is greater than the preset temperature.

In some embodiments, the step of preparing a frame to be mounted comprises the steps of:

according to the structure of the mirror bracket of the reflector, the adjusting bracket and the mounting bracket are assembled.

Compared with the prior art, the reflector, the mirror bracket and the installation method thereof provided by the embodiment of the invention have the following main beneficial effects:

the mirror frame of the reflector connects the adjusting frame to the mounting frame through the connecting assembly, and the axial distance between the adjusting frame and the mounting frame is ensured to be adjustable, so that the reflector is convenient to expand with heat and contract with cold in the assembling process of the mirror frame and the lens; secondly, after the adjusting bracket and the mounting bracket are assembled, the adjusting bracket can be rotated relative to the mounting bracket by acting on one end of the adjusting assembly, so that the angle of the lens arranged on the adjusting bracket relative to the incident beam can be conveniently and timely adjusted, and further the wavefront influence of the lens arranged on the spectacle frame on the incident beam is favorably reduced.

The installation method of the reflector realizes thermal compensation by means of expansion with heat and contraction with cold effects, so that the surface PV value of the lens of the reflector is effectively improved, the wave front influence of the reflector on incident beams is reduced, and the processing effect of a laser processing system is improved.

Drawings

In order to illustrate the solution of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are some embodiments of the invention, and that other drawings may be derived from these drawings by a person skilled in the art without inventive effort. Wherein:

FIG. 1 is a perspective view of a mirror support of an embodiment of the present invention;

FIG. 2 is a perspective view of the mirror of FIG. 1 at another angle;

FIG. 3 is a schematic perspective view of the mirror of FIG. 1 at a further angle;

FIG. 4 is an exploded isometric view of the frame of the mirror of FIG. 1;

FIG. 5 is a perspective view of a mounting bracket of the mirror mount of the mirror of FIG. 1;

FIG. 6 is a schematic perspective view of the mount of FIG. 5 at another angle;

FIG. 7 is a perspective view of an adjustment bracket for the mirror support of the mirror of FIG. 1;

FIG. 8 is a schematic perspective view of the adjustment bracket of FIG. 7 from another angle;

FIG. 9 is a perspective view of a spring stop of the frame of the mirror of FIG. 2;

FIG. 10 is a flow chart of a method of mounting a mirror in accordance with an embodiment of the present invention;

FIG. 11 is a simplified schematic illustration of a method of mounting a mirror in accordance with an embodiment of the present invention.

The reference numbers in the drawings are as follows:

100. a mirror holder of the mirror; 200. a lens;

1. a mounting frame; 11. a first surface; 111. a first groove; 12. a second surface; 13. a first support arm; 14. a second support arm; 15. an adjustment hole; 16. a first connection hole; 17. a first mounting hole; 18. positioning holes;

2. an adjusting bracket; 21. a connection face; 211. a second groove; 212. an insert; 2121. a triangular groove; 213. a second connection hole; 22. a mounting surface; 221. mounting grooves; 2211. a containing groove; 222. a second mounting hole; 23. a light through hole; 24. an elastic limiting part; 241. a limiting pin; 242. a third mounting hole;

3. a connecting assembly; 31. a first screw member; 33. a gasket;

4. an adjustment assembly; 41. a threaded bushing; 42. a second screw;

5. a fulcrum structure; 51. a distance support.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention, e.g., the terms "length," "width," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., refer to an orientation or position based on that shown in the drawings, are for convenience of description only and are not to be construed as limiting of the present disclosure.

The terms "including" and "having," and any variations thereof, in the description and claims of this invention and the description of the above figures are intended to cover non-exclusive inclusions; the terms "first," "second," and the like in the description and claims of the present invention or in the foregoing drawings are used for distinguishing between different objects and not for describing a particular sequential order. The meaning of "plurality" is two or more unless specifically limited otherwise.

In the description and claims of the present invention and in the description of the above figures, when an element is referred to as being "fixed" or "mounted" or "disposed" or "connected" to another element, it may be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

Furthermore, reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

It should be noted that the mirror frame 100 of the mirror is mainly used for mounting the mirror of the mirror, but may actually be used for mounting other suitable optical mirrors, may be used for adjusting the angle between the mirror and the incident light beam thereof, and is also suitable for mounting the mirror on the mirror frame 100 by using the thermal stress compensation method to assemble the mirror finished product.

An embodiment of the present invention provides a mirror frame 100, as shown in fig. 1 to 4, the mirror frame 100 including a mounting frame 1, an adjusting frame 2, a connecting assembly 3, and an adjusting assembly 4. As shown in fig. 3, 5 and 6, the mounting bracket 1 has a first surface 11 and a second surface 12 which are oppositely arranged; as shown in fig. 7 and 8, the adjusting bracket 2 has a connecting surface 21 and a mounting surface 22 which are oppositely arranged, wherein the connecting surface 21 and the mounting surface 22 are respectively one surface close to and one surface far away from the first surface 11. In other words, as shown in fig. 3, the attachment surface 21 of the adjustment bracket 2 is a surface close to the first surface 11 of the mounting bracket 1, and correspondingly, as shown in fig. 2 and 3, the attachment surface 22 of the adjustment bracket 2 is a surface far from the first surface 11 of the mounting bracket 1. In the present embodiment, the mounting frame 1 and the adjusting frame 2 are both plate members, but may be other types of members.

In the present embodiment, as shown in fig. 1 and 2, the adjusting bracket 2 is provided with a light-passing hole 23 in a direction from the mounting surface 22 to the connection surface 21 of the adjusting bracket 2 (specifically, in a thickness direction of the adjusting bracket 2). To facilitate mounting of the adjusting bracket 2 and to facilitate the passage of the incident light beam through the light-passing hole 23, the mounting bracket 1 is located at the periphery of the light-passing hole 23. In the present embodiment, the mirror holder 100 of the mirror can be mounted in the optical system by the mounting bracket 1.

As shown in fig. 1 to 3, the adjusting bracket 2 is detachably connected to the mounting bracket 1 at a side close to the first surface 11 of the mounting bracket 1, and a lens (not shown) is mounted on the adjusting bracket 2 at a side close to the mounting surface 22 of the adjusting bracket 2, wherein an incident light beam of the lens can pass through the light passing hole 23. It is understood that the incident direction of the incident light beam is the direction from the mounting surface 22 to the connection surface 21 of the adjustment frame 2.

Specifically, in the present embodiment, as shown in fig. 2 and 8, a mounting groove 221 for mounting a lens is formed on the mounting surface 22 of the adjusting bracket 2, wherein a groove bottom of the mounting groove 221 is communicated with the light through hole 23, so that the mounting groove 221 is also communicated with the light through hole 23. In addition, in the present embodiment, the light through hole 23 is disposed at the middle position of the adjusting frame 2 and is a circular through hole, but actually, other suitable through holes may also be formed. The shape of the mounting groove 221 is the same as that of the light-transmitting hole 23, but the size of the mounting groove 221 is smaller than that of the light-transmitting hole 23, so that the lens can be securely mounted on the bottom of the mounting groove 221 and the incident light beam can pass through the lens and the light-transmitting hole 23. Preferably, to simplify the structure and to more conveniently adjust the relative angle between the incident light beam and the lens, the installation grooves 221 of the adjustment frame 2 and the center lines of the light passing holes 23 are located on the same straight line.

As shown in fig. 2 and 8, in order to better fix the lens on the adjusting frame 2, a receiving groove 2211 is formed on the bottom of the mounting groove 221 at a side close to the mounting surface 22 of the adjusting frame 2, wherein the receiving groove 2211 is used for filling the colloid for adhering the lens to the bottom of the mounting groove 221. That is, in the present embodiment, the lens is fixedly mounted on the adjusting frame 2 by the glue. In addition, in order to mount the lens more firmly, the bottom of the mounting groove 221 is a plane, or the lens is adhered to the plane bottom of the mounting groove 221 by glue. Specifically, at least 3 receiving grooves 2211 are provided, wherein all the receiving grooves 2211 are uniformly distributed around the center of the mounting groove 221.

It should be noted that, in the present embodiment, in order to stably mount the lens in the mounting groove 221, as shown in fig. 2 and fig. 4, the mounting surface 22 of the adjusting bracket 2 is provided with an elastic limiting member 24 (which may be specifically a spring piece), and as shown in fig. 8, the mounting surface 22 of the adjusting bracket 2 is further provided with a second mounting hole 222; as shown in fig. 2 and fig. 9, a limiting leg 241 is formed on the elastic limiting element 24, and a third mounting hole 242 is further formed on the elastic limiting element 24, wherein a connecting element (such as a screw element) is sequentially inserted into the third mounting hole 242 and the second mounting hole 222, so as to fixedly mount the elastic limiting element 24 on the adjusting frame 2, and the limiting leg 241 abuts against the edge of the lens, so as to prevent the lens from falling out of the mounting groove 221.

In the present embodiment, in order to ensure the firm and stable installation of the lens, as shown in fig. 8, at least two second installation holes 222 are provided, and the second installation holes 222 are uniformly distributed around the center of the light passing hole 23; correspondingly, as shown in fig. 2 and 9, at least two third mounting holes 242 are also provided, and each third mounting hole 242 corresponds to one second mounting hole 222. Preferably, the second mounting hole 222 is a threaded blind hole and the third mounting hole 242 is a threaded through hole. In addition, as shown in fig. 2 and 9, at least two limiting feet 241 are also provided, and the limiting feet 241 are uniformly distributed around the center of the light passing hole 23, specifically, there are 3 limiting feet 241.

In the present embodiment, the connecting assembly 3 is mainly used to connect the adjusting bracket 2 to the mounting bracket 1, and ensure that the axial distance between the adjusting bracket 2 and the mounting bracket 1 (specifically, the distance in the axial direction of the light passing hole 23) is adjustable after the adjusting bracket is connected to the mounting bracket 1. As shown in fig. 1 and fig. 3, one end of the adjusting assembly 4 is disposed on one end of the mounting frame 1, and the other end abuts against the adjusting frame 2. It will be appreciated that after the adjusting bracket 2 is attached to the mounting bracket 1, one end of the adjusting assembly 4 can be acted upon to push the other end of the adjusting assembly 4 against the adjusting bracket 2, thereby rotating the adjusting bracket 2 relative to the mounting bracket 1 to finally adjust the angle of the lens mounted on the adjusting bracket 2 relative to the incident light beam.

Taking the example that the adjusting component 4 abuts against the adjusting frame 2 to be far away from the mounting frame 1, when the other end of the adjusting component 4 abuts against the adjusting frame 2 and pushes one side of the adjusting frame 2 to be far away from one end of the mounting frame 1, because the adjusting frame 2 is integrally connected to the mounting frame 1, therefore, the axial distance between the part which is not abutted and compared with the part which is not abutted by the adjusting frame 2 and is far away from the mounting frame 1 can be larger, namely, in the adjusting process, the adjusting frame 2 can deflect relative to the mounting frame 1 instead of deflecting the same distance in integral synchronization.

In summary, compared with the prior art, the mirror frame 100 of the reflector has at least the following beneficial effects: the mirror frame 100 of the reflector connects the adjusting frame 2 to the mounting frame 1 through the connecting component 3, and ensures that the axial distance between the adjusting frame 2 and the mounting frame 1 is adjustable, so that the reflector is convenient to expand with heat and contract with cold during the assembling process of the mirror frame 100 and the lens; secondly, after the adjusting bracket 2 and the mounting bracket 1 are assembled, the adjusting bracket 2 rotates relative to the mounting bracket 1 by acting on one end of the adjusting component 4, so that the angle of the lens arranged on the adjusting bracket 2 relative to the incident beam can be conveniently and timely adjusted, and further the wave front influence of the lens arranged on the mirror bracket 100 on the incident beam is favorably reduced.

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to fig. 1 to 9.

In some embodiments, as shown in fig. 1 and 5, the mounting frame 1 includes a first arm 13 and a second arm 14 connected in a cross manner, and in particular, in this embodiment, the first arm 13 and the second arm 14 intersect perpendicularly, and the first arm 13 and the second arm 14 are integrally formed to form an "L" shaped structure, and correspondingly, the adjusting frame 2 is a 90 ° fan-shaped plate. As shown in fig. 5 and 6, in order to facilitate the installation of the adjusting assembly 4, an adjusting hole 15 is formed on one end of the first arm 13 and the second arm 14 of the mounting block 1, which is far away from the intersection (specifically, the right-angled corner) of the two, in the direction from the second surface 12 to the first surface 11 of the mounting block 1. As shown in fig. 1, 4 and 5, each adjusting hole 15 is inserted with an adjusting component 4. It can be understood that, as shown in fig. 1, the adjusting assemblies 4 are provided in two, wherein, the two adjusting assemblies 4 are respectively provided on both ends of the mounting frame 1, so that, during adjustment, the angle of the lens relative to the incident light beam can be adjusted more stably through the cooperation of the two adjusting assemblies 4.

In this embodiment, as shown in fig. 4, the adjusting component 4 includes a threaded bushing 41 and a second screw 42, wherein the threaded bushing 41 is sleeved on the second screw 42, and when the adjusting component 4 is inserted into the corresponding adjusting hole 15, the adjusting frame 2 at the corresponding position can be abutted to and away from the mounting frame 1 by rotating the second screw 42, so that the relative position of the lens and the incident light beam can be changed by the matching adjustment of the two adjusting components 4, thereby facilitating to reduce the wavefront influence of the lens on the incident light beam. It should be noted that the adjusting assembly 4 further includes a locking device (not shown), and after the relative position of the lens and the incident light beam is adjusted, the connection between the adjusting frame 2 and the connecting frame can be fixed by the locking device.

Specifically, in this embodiment, a side surface of the mounting bracket 1 near the light passing hole 23 is a circular arc surface. As shown in fig. 1 and 3 to 6, in order to facilitate the installation of the entire lens holder 100 in the optical system, first mounting holes 17 are respectively formed on the first arm 13 and the second arm 14 of the mounting bracket 1 at positions corresponding to the arc surfaces, wherein the mounting bracket 1 can be fixedly installed in the optical system by inserting screws into the corresponding first mounting holes 17. In addition, as shown in fig. 3 and fig. 6, in order to ensure that the lens holder 100 can be accurately installed in the optical system at the corresponding position, positioning holes 18 are further respectively formed on the outer side walls of the first arm 13 and the second arm 14 of the mounting bracket 1, wherein the positioning holes 18 are located at the periphery corresponding to the first installation holes 17, and before the mounting bracket 1 is installed in the optical system by using screws, the mounting bracket 1 can be inserted into the positioning holes 18 by positioning members to position the mounting bracket 1 at the target installation position of the optical system.

Preferably, as shown in fig. 6, in order to make the lens holder 100 more stably installed in the optical system, two mounting holes and two positioning holes 18 are respectively provided on the first arm 13, wherein the two mounting holes and the two positioning holes 18 form a crisscross structure. Correspondingly, two mounting holes and two positioning holes 18 are also respectively arranged on the second arm 14, and the two mounting holes and the two positioning holes 18 also form a crisscross structure. More preferably, each mounting hole is a threaded through hole and each positioning hole 18 is a blind hole.

In some embodiments, in order to make the adjusting bracket 2 rotate relative to the mounting bracket 1 more smoothly, as shown in fig. 3, a fulcrum structure 5 is disposed between the mounting bracket 1 and the adjusting bracket 2 at the intersection (specifically, at a right-angle corner) between the first arm 13 and the second arm 14, wherein the fulcrum structure 5 is mainly used for fixing the initial distance between the adjusting bracket 2 and the mounting bracket 1 when the adjusting bracket 2 is connected to the mounting bracket 1 and providing a rotation fulcrum for the adjustment of the adjusting assembly 4. It will be appreciated that, similar to the lever principle, the adjustment bracket 2 can pivot about the pivot point structure 5 when adjusting the adjustment assembly 4 mounted on the first arm 13 and/or the second arm 14.

In this embodiment, in order to make the adjustment of the angle between the lens and the incident light beam simpler, smoother and more accurate, as shown in fig. 1, fig. 3, fig. 5 and fig. 6, the first arm 13 and the second arm 14 are symmetrically arranged, and the adjusting hole 15 on the first arm 13 and the second adjusting hole 15 on the second arm 14 are symmetrically arranged, with the connection line of the center of the fulcrum structure 5 and the center of the light-passing hole 23 projected on the connection surface 21 of the adjusting bracket 2 as a symmetric center.

In some embodiments, as shown in fig. 3 and 4, the fulcrum structure 5 includes a distance support 51 (which may be a ball member, such as a steel ball). As shown in fig. 6, at an intersection (specifically, a right-angle corner) between the first arm 13 and the second arm 14, a first groove 111 (specifically, a tapered groove) is formed on the first surface 11 of the mounting bracket 1; as shown in fig. 4 and 7, the connecting surface 21 of the adjusting bracket 2 is provided with a second groove 211 (specifically, a tapered groove) corresponding to the first groove 111. In this way, by arranging the distance support 51 between the mounting frame 1 and the adjusting frame 2, a fixed initial distance between the mounting frame 1 and the adjusting frame 2 can be ensured before the relative angle between the lens and the incident light beam is adjusted, so as to facilitate the stability of installation, facilitate the determination of the initial compression amount of the elastic member in the connecting assembly 3, and facilitate the rotation between the distance and the fulcrum when acting on the adjusting assembly 4.

In some embodiments, as shown in fig. 3, 4 and 7, in order to ensure that the stability of the adjusting bracket 2 is maintained during the adjusting process, inserts 212 are embedded in the connecting surface 21 of the adjusting bracket 2 at positions corresponding to the adjusting holes 15, and at least one insert 212 is provided with a triangular groove 2121, wherein the triangular groove 2121 accommodates one end of the adjusting assembly 4, and the center of the triangular groove 2121 is located on the same straight line with the center of the second groove 211.

In some embodiments, as shown in fig. 4, the adjusting bracket 2 is connected to the mounting bracket 1 for convenience, and the connecting assembly 3 includes a first screw member 31 and an elastic member (not shown). As shown in fig. 4 to 6, in a direction from the second surface 12 to the first surface 11 of the mounting bracket 1, the first arm 13 and the second arm 14 are both provided with a first connection hole 16; correspondingly, as shown in fig. 2, 3, 7 and 8, the connecting surface 21 of the adjusting bracket 2 is provided with second connecting holes 213 corresponding to the first connecting holes 16. As shown in fig. 3 and 4, the first screw 31 sleeved with the elastic member (not shown) is inserted into the corresponding first connection hole 16 and the second connection hole 213. Specifically, the elastic member is sleeved on the rod portion of the first screw member 31 and is located in the first connecting hole 16 and/or the second connecting hole 213, and it can be understood that the elastic member is provided to ensure that the axial distance between the adjusting bracket 2 and the mounting bracket 1 is adjustable, rather than being fixed after being connected together by the connecting assembly 3.

It should be noted that, in order to ensure the stability of the connection, the connection assembly 3 further includes a washer 33, and both ends of the first screw 31 are sleeved with the washers 33; preferably, to ensure the stability of the entire structure of the mirror holder 100 and the smoothness of adjustment, the first connection holes 16 are formed at both ends of the first arm 13 and the second arm 14 on the sides of the corresponding adjustment holes 15 near the intersection (specifically, at right-angled corners). The first connection hole 16 and the second connection hole 213 are both threaded through holes.

Based on the above-mentioned mirror frame 100, the present invention further provides a mirror comprising a lens and the above-mentioned mirror frame 100, wherein the lens is mounted on the mounting surface 22 of the mirror frame 100.

Compared with the prior art, the reflector at least has the following beneficial effects: the reflector is beneficial to the expansion and contraction deformation of the reflector through the mirror bracket 100 adopting the reflector, and the angle of the lens arranged on the adjusting bracket 2 relative to the incident beam can be very conveniently and timely adjusted, so that the influence of the lens arranged on the mirror bracket 100 on the wavefront of the incident beam can be reduced.

An embodiment of the present invention further provides a method for installing a mirror, wherein the mirror includes a frame 100 and a lens 200, and in this embodiment, as shown in fig. 10 and 11, the method includes the following steps:

step S100: at a first temperature, the lens 200 is ready for installation and the frame 100 is ready for installation.

In this step S100, after the lens 200 to be mounted is prepared, an initial PV value of the lens 200 to be mounted may be tested using a measuring instrument such as an interferometer. It should be noted that the frame 100 to be mounted as described herein can be the frame 100 of the aforementioned mirror, but other suitable structures of the frame 100 can also be used.

Specifically, in this embodiment, taking the spectacle frame 100 to be mounted as the spectacle frame 100 of the above-mentioned reflecting mirror as an example, in step S100, the step of preparing the spectacle frame 100 to be mounted specifically includes the following steps: the adjustment frame 2 and the mounting frame 1 are assembled according to the structure of the mirror holder 100 of the mirror. It will be understood that this mounting method is thus the mounting method of the above-described mirror. It should be noted that the adjustment bracket 2 and the mounting bracket 1 are usually assembled after being wiped clean before being assembled.

Step S200: the prepared frame 100 is placed for a predetermined period of time at a predetermined temperature to allow the frame 100 to pre-cool and shrink.

In this step S200, the preset temperature is lower than the first temperature. The first temperature may be normal temperature, but may also be other suitable temperatures. In this way, the frame 100 can be retracted at low temperatures due to the effects of thermal expansion and contraction. Specifically, in the present embodiment, the light-passing hole 23 formed in the adjustment frame 2 of the lens holder 100 is also contracted. In this embodiment, the preset temperature is lower than 0 ℃, preferably, the preset temperature is-10 ℃. The preset time is greater than 0.5 hour, and preferably, the preset time is set to 1 hour.

It should be noted that, the distance between the adjusting frame 2 on which the lens 200 is mounted and the mounting frame 1 of the mirror frame 100 is adjustable, so that the structure is favorable for deformation of the mirror frame 100 of the mirror due to contraction or expansion during expansion and contraction, and for timely adjustment of the relative angle between the lens 200 and the incident light beam after deformation.

Step S300: the lens 200 to be mounted at the first temperature is fixed on the mirror holder 100 at the preset temperature through the target glue, and the target glue is cured to form a semi-finished product of the reflector.

In step S300, specifically in the present embodiment, the first temperature is normal temperature, that is, the lens 200 to be mounted is the lens 200 at normal temperature; the target colloid is UV glue (specifically, the accommodating groove 2211 is filled with the UV glue) with a low thermal expansion coefficient and a weak influence of the environmental temperature on the volume and viscosity of the colloid, so that the lens 200 can be quickly installed on the mirror holder 100 of the reflector, and then a semi-finished product of the reflector can be quickly formed after curing.

Step S400: at the second temperature, the semi-finished mirror is placed until the mirror holder 100 of the mirror returns to its original volume to form the finished mirror.

In step S400, the second temperature is greater than the preset temperature, specifically in this embodiment, the second temperature and the first temperature are both normal temperatures, and generally, the second temperature is equal to the first temperature. Note that the original volume of mirror holder 100 refers to the volume of mirror holder 100 assembled at the first temperature.

It can be understood that, in the process of standing the semi-finished product of the reflector at normal temperature, the reflector will expand to some extent according to the effect of expansion with heat and contraction with cold, and in the process of expanding, the lens 200 will be pulled by the target colloid to extend to some extent due to the viscosity of the target colloid.

It can be understood that the mounting method of the reflector realizes thermal compensation by means of the effect of expansion with heat and contraction with cold, so that the surface PV value of the lens 200 of the reflector is effectively improved, the wave front influence of the reflector on incident beams is reduced, and the processing effect of a laser processing system is improved. In general, the mirror and its frame 100 are simple and reliable in construction, and the method of mounting the mirror is simple, which facilitates a significant reduction in the surface PV value of the mirror's lens 200.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (11)

1. The mirror frame of the reflector is characterized by comprising a mounting frame, an adjusting frame, a connecting assembly and an adjusting assembly, wherein the mounting frame is provided with a first surface and a second surface which are oppositely arranged; the adjusting frame is provided with a connecting surface and an installing surface which are oppositely arranged, and the connecting surface and the installing surface are respectively close to and far away from one surface of the first surface; in the direction from the mounting surface to the connecting surface, the adjusting frame is provided with a light through hole;

the mounting rack is positioned at the periphery of the light through hole and used for mounting the lens frame in an optical system;

the adjusting frame is detachably connected to the mounting frame at one side close to the first surface, and a lens through which incident light beams can pass from the light through hole is arranged on the adjusting frame at one side close to the mounting surface;

the connecting assembly is used for connecting the adjusting frame to the mounting frame and ensuring that the axial distance between the adjusting frame and the mounting frame is adjustable after the adjusting frame is connected to the mounting frame;

one end of the adjusting component is arranged on one end of the mounting frame, and the other end of the adjusting component abuts against the adjusting frame; the adjusting assembly is used for adjusting the adjusting frame to rotate relative to the mounting frame after the adjusting frame is connected to the mounting frame, so as to finally adjust the angle of the lens relative to the incident light beam.

2. The mirror holder of claim 1, wherein the mounting bracket comprises a first arm and a second arm that are connected in a crossing manner, and in a direction from the second surface to the first surface, an adjusting hole is formed in each of ends of the first arm and the second arm that are away from the intersection of the first arm and the second arm, and the adjusting assembly is inserted into each of the adjusting holes.

3. The mirror support of claim 2, wherein a fulcrum structure is provided between the mounting bracket and the adjustment bracket at the intersection between the first arm and the second arm, the fulcrum structure being configured to fix an initial distance between the adjustment bracket and the mounting bracket when the adjustment bracket is coupled to the mounting bracket and to provide a pivot point for adjustment of the adjustment assembly.

4. The mirror holder according to claim 3, wherein the first arm and the second arm are symmetrically disposed, and the adjustment hole of the first arm and the second adjustment hole of the second arm are symmetrically disposed, with a line projected on the connecting surface of the adjustment holder by a center of the fulcrum structure and a center of the light-passing hole as a center of symmetry.

5. The mirror holder of claim 3, wherein the pivot structure comprises a spacer, wherein a first groove is formed on a first surface of the mounting bracket at an intersection between the first and second arms, a second groove corresponding to the first groove is formed on a connecting surface of the adjusting bracket, a portion of the spacer is received in the first groove, and a portion of the spacer is received in the second groove and is in spherical fit with the second groove.

6. The mirror holder of claim 5, wherein inserts are embedded in the connecting surface of the adjusting holder at positions corresponding to the adjusting holes, at least one insert is provided with a triangular groove, the triangular groove accommodates one end of the adjusting member, and the center of the triangular groove and the center of the second groove are located on the same straight line.

7. The mirror support of claim 2, wherein the connecting assembly comprises a first screw and a resilient member; in the direction from the second surface to the first surface, first connecting holes are formed in the first support arm and the second support arm, second connecting holes corresponding to the first connecting holes are formed in the connecting surface of the adjusting frame, and the first screw piece sleeved with the elastic piece is inserted into the corresponding first connecting holes and the second connecting holes.

8. The mirror holder of any one of claims 1 to 7, wherein the mounting surface of the adjusting bracket is provided with a mounting groove for mounting a mirror, the bottom of the mounting groove is communicated with the light through hole, and the center lines of the mounting groove and the light through hole are positioned on the same straight line; and a containing groove is formed in the bottom of the mounting groove and is used for filling colloid which adheres the lens to the bottom of the mounting groove.

9. A mirror, comprising a lens and a frame of the mirror according to any one of claims 1 to 8, the lens being mounted to a mounting surface of the frame of the mirror.

10. A method of mounting a mirror, wherein the mirror comprises a frame and a lens, the method comprising the steps of:

preparing a lens to be installed and a spectacle frame to be installed at a first temperature;

placing the prepared mirror frame for a preset time at a preset temperature so as to precool and contract the mirror frame; wherein the preset temperature is lower than the first temperature;

fixing a lens to be installed at a first temperature on a mirror frame at a preset temperature through a target colloid, and curing the target colloid to form a semi-finished product of a reflector;

placing the semi-finished product of the reflector at a second temperature until the mirror frame of the reflector is restored to the original volume to form a finished product of the reflector; wherein the second temperature is greater than the preset temperature.

11. A mirror mounting method according to claim 10, wherein the step of preparing a frame to be mounted comprises the steps of:

the mirror support structure of claim 9, wherein the adjustment bracket and the mounting bracket are assembled.

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