Optical structure, laser device, and laser processing apparatus

Abstract

The application provides an optical structure, a laser device and a laser processing equipment. The optical structure comprises a lens, a base and at least three adhesive members. The lens is in a circular structure. The at least three adhesive members are arranged between the side surface of the lens and the base and are uniformly distributed along the circumferential direction of the lens. The at least three adhesive members bond the lens and the base. Therefore, the stress generated by the uniformly distributed adhesive members can be counteracted, the adverse effect of the adhesive members on the surface shape of the lens is reduced, the flatness of the lens is ensured, and the quality of the laser beam of the laser device and the laser processing equipment is ensured.

Description

Technical Field

[0001] This application relates to the field of optical technology, specifically to an optical structure, a laser device, and laser processing equipment. Background Technology

[0002] Laser processing equipment is a device that uses a laser beam to engrave, cut, or weld on the surface of materials, characterized by high precision and high speed. Laser processing equipment typically uses a reflector fixed to a mount and employs the reflector to change the direction of the laser beam, thereby improving the space utilization of the laser head.

[0003] However, after prolonged use, the surface shape of the reflectors in this technology tends to deteriorate, leading to problems such as laser beam focusing spot distortion and edge shearing. Therefore, there is an urgent need to provide a solution that can mitigate the changes in the reflector surface shape. Utility Model Content

[0004] The purpose of this application is to provide an optical structure, laser device, and laser processing equipment that can ensure the flatness of the lens.

[0005] To address the aforementioned issues, in a first aspect, this application provides an optical structure comprising a lens, a base, and at least three adhesive members. The lens is circular, and the at least three adhesive members are disposed between the side of the lens and the base, and are evenly distributed along the circumference of the lens. The at least three adhesive members bond the lens to the base.

[0006] Optionally, the base includes a receiving cavity, the sidewall of which is provided with at least three grooves corresponding one-to-one with the at least three adhesive members, each adhesive member being disposed in one of the grooves.

[0007] Optionally, the lens is disposed within the receiving cavity, and the outer surface of the lens is flush with the outer surface of the base where the receiving cavity opening is located.

[0008] Optionally, the base further includes a support member that extends and protrudes from the inner wall of the receiving cavity along the radial direction of the receiving cavity, and at least a portion of the lens is disposed on the support member.

[0009] Optionally, the base includes a plurality of the carriers; the plurality of carriers are evenly spaced along the circumferential direction of the lens, and / or, each of the carriers is staggered from the at least three adhesives.

[0010] Optionally, the area on the side of the lens other than that connected to the at least three adhesive members is fitted to the side wall of the receiving cavity.

[0011] Optionally, the base further includes a cavity, which is disposed on the side of the receiving cavity opposite to the lens and communicates with the receiving cavity, wherein the inner diameter of the cavity is smaller than the inner diameter of the receiving cavity.

[0012] Optionally, the outer surface of the lens facing away from the base is used to reflect the light beam.

[0013] Secondly, this application also provides a laser device, including a laser emitter and an optical structure as described above, wherein the lenses of the optical structure are used to receive and reflect the light beam emitted by the laser emitter.

[0014] Thirdly, this application also provides a laser processing device, including a laser device and a frame as described above, wherein the laser device is disposed on the frame.

[0015] Based on the above technical solution, in the optical structure, laser device, and laser processing equipment provided in this application, the optical structure is provided with a circular lens, and at least three adhesive members are uniformly distributed along the circumference of the lens between the base and the side of the lens. On the one hand, the adhesive members are far from the center of the lens, and the internal stress released by the adhesive members due to long service time, temperature changes, etc. is far from the center of the lens. The stress generated by the adhesive members has little impact on the lens and is less likely to affect the surface shape of the lens. On the other hand, since at least three adhesive members are uniformly distributed along the circumference of the lens, the stress generated by multiple uniformly distributed adhesive members can cancel each other out, further reducing the impact of the adhesive members on the surface shape of the lens, ensuring the flatness of the lens, and thus ensuring the quality of the laser beam of the laser device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this application. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0017] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0018] Figure 1 A schematic diagram of an optical structure provided in an embodiment of this application;

[0019] Figure 2 An exploded view of an optical structure provided in an embodiment of this application;

[0020] Figure 3 This is a schematic diagram showing the connection of a reflector in a laser processing device related to this technology.

[0021] Figure 4 A schematic diagram of the base of the optical structure provided in the embodiments of this application;

[0022] Figure 5 A cross-sectional view of an optical structure provided in an embodiment of this application;

[0023] Figure 6 This is a schematic diagram of the base of the optical structure provided in the embodiments of this application from another direction;

[0024] Figure 7 A schematic diagram of the structure of a laser device provided in an embodiment of this application;

[0025] Figure 8 This is a schematic diagram of a laser processing device provided in an embodiment of this application.

[0026] The reference numerals in the attached figures are as follows:

[0027] 10. Laser device; 20. Laser processing equipment; 21. Frame; 22. Worktable; 23. Outer casing structure; 100. Optical structure; 200. Laser emitter; 300. Beam expander; 110. Lens; 120. Base; 130. Adhesive component; 410. Reflector; 420. Mirror mount; 111. First surface; 112. Second surface; 113. Side surface; 121. Receiving cavity; 122. Groove; 123. Supporting component; 124. Cavity. Detailed Implementation

[0028] The following will refer to the appendices in this application. Figure 1 To be continued Figure 8 The technical solutions in this application are clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0030] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of one structure of the optical structure 100 provided in an embodiment of this application. Figure 2 This is an exploded view of an optical structure 100 provided in an embodiment of this application. The optical structure 100 includes a lens 110, a base 120, and at least three adhesive members 130. The lens 110 has a circular structure, and the at least three adhesive members 130 are disposed between the side 113 of the lens 110 and the base 120. The at least three adhesive members 130 are evenly distributed along the circumference of the lens 110, and the at least three adhesive members 130 bond the lens 110 to the base 120.

[0031] It is understood that the lens 110 includes a first surface 111, a second surface 112, and a side surface 113 disposed between the first surface 111 and the second surface 112. The first surface 111 and the second surface 112 are circular surfaces, and the side surface 113 surrounds the edges of the first surface 111 and the second surface 112 to form an annular surface. The side surface 113 of the lens 110 includes at least three first connection areas (not shown in the figures), which correspond one-to-one with at least three adhesive members 130, such that the at least three first connection areas are also evenly distributed along the circumference of the lens 110. The lens 110 may be, but is not limited to, a K9 glass lens, a quartz lens, a silicon lens, a molybdenum lens, etc.

[0032] Understandably, the base 120 is used to fix the lens 110. The base 120 includes at least three second connecting areas (not shown in the figure), which are arranged one-to-one with at least three first connecting areas, such that one second connecting area is arranged opposite to one first connecting area and there is a certain gap between them. An adhesive 130 is located in the gap and is bonded to the first connecting area and the second connecting area respectively, thereby realizing the bonding and fixing of the lens 110 and the base 120.

[0033] Understandably, at least three adhesive components 130 are bonded to the side surface 113 of the lens 110, and the adhesive components 130 are relatively far from the center of the lens 110 (the midpoint of the line connecting the center of the first surface 111 and the center of the second surface 112). When the adhesive components 130 release internal stress due to prolonged use, temperature changes, etc., the distance between this stress and the center of the lens 110 is relatively long, resulting in a smaller impact on the lens 110 and less likelihood of affecting its surface shape. The lens 110 still maintains good flatness. Furthermore, since at least three adhesive components 130 are evenly distributed along the circumference of the lens 110, the stress generated by the multiple evenly distributed adhesive components 130 can cancel each other out, further reducing the adverse effects of the adhesive components 130 on the surface shape of the lens 110, ensuring the flatness of the lens 110, ensuring the quality of the surface shape of the lens 110, and thus ensuring the quality of the laser beam from the laser device 10 and laser processing equipment 20 using this lens 110. The surface profile of lens 110 refers to the flatness of the surface of lens 110 (e.g., the first surface 111 and the second surface 112). The flatter the surface of lens 110, the higher the surface profile quality; the more uneven the surface of lens 110, the worse the surface profile quality.

[0034] For comparison, please refer to Figure 3 , Figure 3 This is a schematic diagram illustrating the connection of a reflector 410 in a laser processing apparatus of the related technology. In this apparatus, the reflector 410 is a square lens. A strip of adhesive is applied to both sides of the reflector 410 to form a fixed connection between the reflector 410 and the base 420. However, with temperature changes and prolonged use, the internal stress of the adhesive is released. The forces acting on the sides of the reflector 410 bonded to the adhesive strips differ from those acting on the sides not bonded, resulting in an uneven force on the reflector 410 and a change in its surface shape, making it uneven. When a laser beam irradiates the uneven surface of the reflector 410, it severely affects the laser beam path, leading to problems such as focused spot distortion and edge shearing, resulting in a significant deterioration in laser beam quality. In this application, the lens 110 is configured as a circular structure, and at least three adhesive members 130 are uniformly distributed along the circumference of the lens 110 and connected to the side surface 113 of the lens 110. The stress generated by the multiple adhesive members 130 cancels each other out, ensuring the surface quality of the lens 110 and the quality of the laser beam.

[0035] It is understood that the adhesive 130 in this application may be, but is not limited to, glue, double-sided tape, etc. When the adhesive 130 is glue, it can be filled into the gap between the first connection area and the second connection area by dispensing glue to form the adhesive 130. In some examples, all adhesives 130 can be of the same material. In this case, adhesives 130 of the same material have basically the same performance and have little difference in their impact on the surface shape of the lens 110, making it easier to control the surface shape of the lens 110. Of course, in other examples, several adhesives 130 of different materials can be selected to control the surface shape of the lens 110, depending on the specific structure of different areas of the base 120 (in actual production, the base 120 may be an irregular structure). The embodiments of this application do not limit the specific structure of the adhesive 130.

[0036] The optical structure 100 of this embodiment features a circular lens 110. At least three adhesive members 130 are evenly distributed along the circumference of the lens 110 between the base 120 and the side surface 113 of the lens 110. On one hand, the adhesive members 130 are far from the center of the lens 110. Due to prolonged use and temperature changes, the internal stress released by the adhesive members 130 is relatively far from the center of the lens 110, resulting in less impact on the lens 110's surface shape. On the other hand, since at least three adhesive members 130 are evenly distributed along the circumference of the lens 110, the stress generated by the multiple evenly distributed adhesive members 130 can cancel each other out, further reducing the impact of the adhesive members 130 on the surface shape of the lens 110, ensuring the flatness of the lens 110, and thus ensuring the laser beam quality of the laser device 10.

[0037] In some examples, the outer surface of the lens 110 facing away from the base 120 is used to reflect the light beam. For instance, when the lens 110 is connected to the base 120, the second surface 112 is located between the first surface 111 and at least part of the base 120. The first surface 111 is the outer surface facing away from the base 120, and it is used to reflect the light beam; the first surface 111 is a reflective surface. The light beam can be reflected after passing through the first surface 111, and the first surface 111 can change the propagation path of the light beam, thereby making the placement of the laser emitter 200 of the laser device 10 using this lens 110 more flexible. In this embodiment, the lens 110 is provided with a first surface 111 that has a reflective function, which can increase the placement flexibility of the laser emitter 200 of the laser device 10.

[0038] It should be noted that the first surface 111 can be an optical surface with other optical functions besides being a reflective surface. For example, but not limited to, the first surface 111 can be a concave surface to achieve a focusing function, a convex surface to achieve a diverging function, or a polarizing surface to change the polarization state of light. The embodiments of this application do not limit the function of the first surface 111.

[0039] In some examples, please refer to Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the base 120 of the optical structure 100 provided in an embodiment of this application. Figure 5 This is a cross-sectional view of an optical structure 100 provided in an embodiment of this application. The base 120 includes a receiving cavity 121, which is recessed towards the side opposite to the lens 110. The lens 110 is disposed within the receiving cavity 121, and its side surface 113 is disposed opposite to the side wall of the receiving cavity 121. In some examples, the outer surface of the lens 110, such as the first surface 111, is flush with the outer surface of the base 120 where the receiving cavity opening is located. Therefore, on the one hand, the lens 110 is embedded within the receiving cavity 121, making the connection between the lens 110 and the base 120 more stable; on the other hand, the lens 110, being flush with the receiving cavity 121, can better conduct and receive the light beam, avoiding the undesirable phenomenon of the light beam being reflected again to the side wall of the receiving cavity 121 after passing through the outer surface of the lens 110.

[0040] In some examples, please refer to [the relevant documentation / reference]. Figure 4 and Figure 5 The sidewall of the receiving cavity 121 is recessed inward along the radial direction of the lens 110 and away from the center of the lens 110 at at least three first connection areas (e.g., second connection areas) corresponding to the side surface 113 of the lens 110, forming at least three grooves 122, such that the sidewall of the receiving cavity 121 has at least three grooves 122 corresponding one-to-one with at least three adhesive members 130. Each adhesive member 130 of the optical structure 100 is disposed in one groove 122. When the adhesive member 130 is an adhesive structure, the groove 122 forms a dispensing groove. In this embodiment, the adhesive member 130 is located in the groove 122 and achieves adhesion to the side surface 113 of the lens 110. The adhesive member 130 is not easy to overflow the base 120, ensuring the precision of the optical structure 100.

[0041] In some examples, please refer to [the relevant documentation / reference]. Figure 4 and Figure 5The base 120 also includes a support member 123 that extends and protrudes from the inner wall of the receiving cavity 121 in the radial direction of the receiving cavity 121. The support member 123 protrudes from the inner wall of the receiving cavity 121 and extends toward the center of the lens 110. At least a portion of the lens 110 is disposed on the support member 123. The support member 123 is used to support the lens 110 and provide support for the lens 110, making the connection between the lens 110 and the base 120 more stable.

[0042] In some instances, please refer to [the relevant documentation / reference]. Figure 4 and Figure 5 Please refer to Figure 6 , Figure 6 This is a schematic diagram of the base 120 of the optical structure 100 provided in this embodiment of the application, taken from another direction. The base 120 includes multiple support members 123, which are evenly distributed along the circumference of the lens 110. The lines connecting the multiple support members 123 to the center of the lens 110 divide the lens 110 equally. In this case, the more evenly distributed multiple support members 123 can better support the lens 110, and the lens 110 is subjected to more uniform force, further ensuring the surface quality of the lens 110.

[0043] In some instances, please refer to [the relevant documentation / reference]. Figures 4 to 6 Multiple carriers 123 are spaced apart, and each carrier 123 is staggered from at least three adhesives 130, such that each carrier 123 is staggered not only from the other carriers 123 but also from each adhesive 130. Each adhesive 130 is staggered not only from the other adhesives 130 but also from each carrier 123. In this embodiment, the staggered arrangement of the multiple carriers 123 and adhesives 130 prevents the adhesives 130 from overflowing into the groove 122 and flowing into the area where the carriers 123 are located, thus avoiding adhesion to the second surface 112 of the lens 110 and affecting the surface shape of the lens 110.

[0044] It is understood that the multiple carriers 123 of the base 120 can be evenly distributed along the circumferential direction of the lens 110; or, each carrier 123 can be staggered from at least three adhesives 130; or, the multiple carriers 123 can be evenly distributed along the circumferential direction of the lens 110, while each carrier 123 is staggered from at least three adhesives 130.

[0045] In some instances, please refer to [the relevant documentation / reference]. Figures 4 to 6The base 120 includes three grooves 122 and three support members 123, which are evenly distributed along the circumference of the lens 110. The support members 123 and grooves 122 are alternately arranged, such that one support member 123 is positioned between two grooves 122, and one groove 122 is positioned between two support members 123. The lines connecting the three support members 123 and grooves 122 to the center of the lens 110 divide the entire lens 110 into six equal parts, each with a central angle of 60 degrees. With the combined action of the three adhesive members 130 and the three support members 123, the connection between the lens 110 and the base 120 is more stable, the lens 110 experiences more even stress, and the surface quality of the lens 110 is further guaranteed.

[0046] In some examples, please refer to [the relevant documentation / reference]. Figures 4 to 6 The central axis of the receiving cavity 121 is coaxial with the central axis of the lens 110, which is the line connecting the centers of the two surfaces of the lens 110. In this case, the cross-section of the receiving cavity 121 can also be circular or approximately circular, making the receiving cavity 121 and its sidewalls more regular. The receiving cavity 121 can better accommodate and fix the lens 110, avoiding the adverse effects of an irregular receiving cavity 121 on the surface shape of the lens 110.

[0047] In some examples, please refer to [the relevant documentation / reference]. Figures 4 to 6 The area of ​​the side surface 113 of the lens 110, excluding the area connected to at least three adhesive members 130, is fitted and connected to the side wall of the receiving cavity 121. For example, in addition to the first connecting area, the side surface 113 of the lens 110 also includes a remaining third connecting area; in addition to the second connecting area, the side wall of the receiving cavity 121 also includes a remaining fourth connecting area. The third connecting area can fit against the fourth connecting area with virtually no gap between them. In some examples, the third connecting area and the fourth connecting area can be press-fitted together to achieve contact. In the embodiments of this application, the third connecting area and the fourth connecting area fit together, further improving the connection stability between the lens 110 and the base 120.

[0048] In some examples, please refer to [the relevant documentation / reference]. Figures 4 to 6 The base 120 also includes a cavity 124, which is disposed on the side of the receiving cavity 121 opposite to the lens 110 and communicates with the receiving cavity 121. The inner diameter of the cavity 124 is smaller than the inner diameter of the receiving cavity 121. In this embodiment, the cavity 124 on the base 120 reduces the weight of the base 120, thereby reducing the weight of the laser device 10. When the laser device 10 of this application is applied in the laser processing equipment 20, the lighter laser device 10 results in higher laser processing precision in the laser processing equipment 20.

[0049] In some examples, please refer to [the relevant documentation / reference]. Figures 4 to 6 The central axis of the cavity 124 is coaxial with the central axis of the receiving cavity 121 and the central axis of the lens 110. At this time, the shapes of the cavity 124 and the receiving cavity 121 are more regular, the center of gravity of the entire base 120 is more stable, and the connection stability between the base 120 and the lens 110 is further improved.

[0050] Based on the above description of the optical structure 100, this application also provides a laser device 10. Please refer to... Figure 7 , Figure 7 This is a schematic diagram of a laser device 10 provided in an embodiment of this application. The laser device 10 includes a laser emitter 200 and an optical structure 100 of any of the above embodiments.

[0051] The laser emitter 200 is used to emit laser light, and the lens 110 of the optical structure 100 is used to receive the beam emitted by the laser emitter 200. When the lens 110 is a reflective lens, it can also reflect the beam to change the propagation path of the beam, making the placement of structures such as the laser emitter 200 in the laser device 10 more flexible, and enabling the laser device 10 to achieve a miniaturized design. In some embodiments, the number of optical structures 100 can be multiple, and multiple reflections of the beam output by the laser emitter 200 can be achieved through multiple optical structures 100.

[0052] In some embodiments, such as Figure 7 As shown, there can be two laser emitters 200, namely a first laser emitter and a second laser emitter. Some optical structures 100 can be disposed in the emission optical path of the first laser emitter, and some optical structures 100 can be disposed in the emission optical path of the second laser emitter. The laser device 10 may also include a beam combining component, which can be disposed in the emission optical path where the first laser emitter and the second laser emitter intersect, for making the beam emitted by the first laser emitter and the beam emitted by the second laser emitter exit along the same optical path.

[0053] In some embodiments, the laser device 10 may also include, but is not limited to, a beam expander 300. The beam expander 300 is disposed between the laser emitter 200 and the optical structure 100. The laser beam emitted by the laser emitter 200 passes through the beam expander 300 and then propagates to the lens 110 of the optical structure 100 for reflection. The beam expander 300 can effectively reduce the divergence angle of the laser beam, making the beam more parallel and improving the collimation characteristics of the beam.

[0054] In some embodiments, structures such as the laser emitter 200, optical structure 100, and beam expander 300 can be connected to form an integral structure via a connector, and the integral structure can then be fixedly connected to other structures via the connector. The connector can be, but is not limited to, a connecting plate or a connecting frame.

[0055] It should be noted that the laser device 10 may also include other structures, such as galvanometers, field mirrors, etc., but this application embodiment does not limit this.

[0056] Based on the structure of the laser device 10 described above, this application also provides a laser processing equipment 20, please refer to... Figure 8 , Figure 8 This is a schematic diagram of a laser processing apparatus 20 provided in an embodiment of this application. The laser processing apparatus 20 includes a frame 21 and a laser device 10 from any of the above embodiments.

[0057] The frame 21 is the main frame structure of the laser processing equipment 20, providing structural support for the laser device 10. The laser processing equipment 20 may include a worktable 22 connected to the frame 21, on which the workpiece to be processed can be placed and fixed. The laser processing equipment 20 may also include a moving mechanism (not shown in the attached diagram), connected to the frame 21 and the laser device 10, which can drive the laser device 10 to move along a preset direction, enabling the laser device 10 to perform high-precision laser processing on the workpiece.

[0058] Understandably, in some examples, the laser processing equipment 20 may also include an outer casing structure 23 connected to the frame 21, forming a receiving space within which the worktable 22 and the laser device 10 may be located. The outer casing structure 23 can shield the laser emitted by the laser device 10, thereby improving the safety of the laser processing equipment 20. In some examples, the outer casing structure 23 may also be slidably connected to the frame 21, and the outer casing structure 23 may also slide relative to the frame 21, so that the outer casing structure 23 can shield the laser device 10 after it has moved along a predetermined direction.

[0059] It is understood that the laser processing equipment 20 in this application embodiment may be, but is not limited to, a laser engraving equipment, a laser cutting equipment, a laser welding equipment, a laser and knife cutting all-in-one equipment, a laser and printing all-in-one equipment, etc. This application embodiment does not limit the specific structure of the laser processing equipment 20.

[0060] It should be noted that the accompanying drawings of the embodiments of this application are only used to illustrate the optical structure 100, laser device 10, and laser processing equipment 20 of this application, and are not intended to limit them. For example, the accompanying drawings... Figure 8The laser device 10 is only shown with a dashed box in the image, which does not mean that the laser device 10 is a rectangular structure.

[0061] It should be noted that the optical structure 100, laser device 10 and laser processing equipment 20 in the embodiments of this application are different subjects under the same inventive concept, and features not described in detail in each embodiment can be referred to the descriptions in other embodiments.

[0062] It should be noted that the term "multiple" in this application generally refers to two or more. Furthermore, the directional terms used in the embodiments of this application, such as "up," "down," "front," "back," "left," "right," "inner," "outer," and "side," are only for reference to the accompanying drawings. Therefore, the directional terms used are for illustrating and understanding the embodiments of this application, and not for limiting the embodiments of this application. In the various drawings, structurally similar units are represented by the same reference numerals. For clarity, the various parts in the drawings are not drawn to scale. Additionally, some related parts may not be shown in the drawings.

[0063] It should be understood that in the description of this application, terms such as "first" and "second" are used only to distinguish similar objects and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0064] It is understood that those skilled in the art can combine various implementation methods in the above embodiments under the guidance of the above examples to obtain technical solutions with multiple implementation methods. The above descriptions are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

[0065] The optical structure, laser device, and laser processing equipment provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An optical structure, characterized in that, The device includes a lens, a base, and at least three adhesive components. The lens has a circular structure. The at least three adhesive components are disposed between the side of the lens and the base and are evenly distributed along the circumference of the lens. The at least three adhesive components bond the lens to the base.

2. The optical structure according to claim 1, characterized in that, The base includes a receiving cavity, and the side wall of the receiving cavity is provided with at least three grooves corresponding to the at least three adhesive members, with each adhesive member disposed in one of the grooves.

3. The optical structure according to claim 2, characterized in that, The lens is disposed within the receiving cavity, and the outer surface of the lens is flush with the outer surface of the base where the receiving cavity opening is located.

4. The optical structure according to claim 2, characterized in that, The base also includes a support member that extends and protrudes from the inner wall of the receiving cavity along the radial direction of the receiving cavity, and at least a portion of the lens is disposed on the support member.

5. The optical structure according to claim 4, characterized in that, The base includes a plurality of the carriers; the plurality of carriers are evenly spaced along the circumferential direction of the lens, and / or each of the carriers is staggered from the at least three adhesives.

6. The optical structure according to any one of claims 2 to 5, characterized in that, The area on the side of the lens, excluding the area connected to the at least three adhesive members, is fitted to the side wall of the receiving cavity.

7. The optical structure according to any one of claims 2 to 5, characterized in that, The base also includes a cavity, which is located on the side of the receiving cavity opposite to the lens and communicates with the receiving cavity. The inner diameter of the cavity is smaller than the inner diameter of the receiving cavity.

8. The optical structure according to any one of claims 1 to 5, characterized in that, The outer surface of the lens facing away from the base is used to reflect the light beam.

9. A laser device, characterized in that, It includes a laser emitter and an optical structure as described in any one of claims 1 to 8, wherein the lenses of the optical structure are used to receive and reflect the light beam emitted by the laser emitter.

10. A laser processing device, characterized in that, It includes the laser device and frame as described in claim 9, wherein the laser device is disposed on the frame.

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