Adsorption device and laminating system

Abstract

The utility model is suitable for the technical field of optical element assembling, and discloses an adsorption device and a laminating system.The adsorption device comprises an adsorption body and adsorption assemblies, a laminating mechanism of the laminating system is in driving connection with the adsorption body, and the adsorption assemblies are arranged on at least one outer surface, close to an optical element, of the adsorption body; the device is used for adsorbing edge areas of optical elements. The adsorption device is simple in structure, the optical element is fixed in an adsorption mode, operation is convenient, and when the adsorption device adsorbs the optical element, the phenomenon that the waveguide structure of the optical element is damaged can be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of optical element assembly, and in particular to an adsorption device and a bonding system. Background Art

[0002] With the rapid development of technologies like AR (Augmented Reality) and VR (Virtual Reality), optical components like optical waveguide lenses are becoming increasingly important in these products. An optical waveguide is a dielectric device that guides light waves through it, also known as a dielectric optical waveguide.

[0003] In some relevant scenarios, such as attaching lenses to frames, the lens's fixation and the accuracy of its alignment directly impact the quality of the lens's attachment to the frame. Related technologies employ mechanical fixing devices to secure the lenses, but these devices suffer from complex structures, inconvenient operation, and the potential for damage to the lens' waveguide structure. Utility Model Content

[0004] The first purpose of the present application is to provide an adsorption device, which aims to solve the technical problems that the current device for fixing optical elements has a complex structure, is inconvenient to operate, and is prone to damage to the waveguide structure.

[0005] To achieve the above objectives, the solution provided by this application is:

[0006] An adsorption device is applied to a laminating system, and the adsorption device comprises:

[0007] an adsorption body, the adsorption body being used to connect to the bonding mechanism of the bonding system so as to move under the drive of the bonding mechanism;

[0008] The adsorption component is arranged on at least one outer surface of the adsorption body close to the optical element and is used for adsorbing the edge area of ​​the optical element.

[0009] The second purpose of the present application is to provide a bonding system, including a bonding mechanism and the above-mentioned adsorption device, wherein the bonding mechanism drives the side of the adsorption body connected to face away from the adsorption component, and the bonding mechanism is used to drive the adsorption body to move, so as to drive the optical element to move toward or away from the frame.

[0010] The adsorption device provided in this application has the following beneficial effects:

[0011] In this embodiment, the adsorption device includes an adsorption body and an adsorption component. The adsorption component is arranged on at least one outer surface of the adsorption body and is used to adsorb and fix the optical element. Compared with the mechanical fixing device, the adsorption device has a simple structure. Compared with using a mechanical fixing device to fix the optical element, the method of fixing the optical element is simple and easy to operate.

[0012] In the adsorption device of this embodiment, the adsorption component is arranged at the edge part of the outer surface of the adsorption body to adsorb the edge area of ​​the optical element. Compared with adsorbing the middle area of ​​the optical element, when the adsorption component adsorbs the optical element, it can avoid damaging the waveguide structure located in the middle area. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0014] Figure 1 is a structural diagram of a bonding system provided in an embodiment of the present application;

[0015] Figure 2 Schematic diagram of the structure of the adsorption device provided in the embodiment of the present application;

[0016] Figure 3 This is a schematic diagram of the exploded structure of the adsorption device provided in an embodiment of the present application at one viewing angle;

[0017] Figure 4 This is a schematic diagram of the exploded structure of the adsorption device provided in an embodiment of the present application from another perspective.

[0018] Description of Figure Numbers:

[0019] 100. Lamination system;

[0020] 1. Adsorption device;

[0021] 10. Adsorption body; 11. First through hole; 12. Second through hole; 13. Groove;

[0022] 20. Adsorption assembly; 21. Adsorption member; 22. Adsorption portion; 221. Adsorption hole; 23. Opening;

[0023] 30. Outer surface; 31. Middle part; 32. Edge part;

[0024] 2. Laminating mechanism; 3. Rotating mechanism; 4. Detection part. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship and movement status between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0027] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element through an intervening element.

[0028] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0029] like Figure 1 As shown, the adsorption device 1 provided in this embodiment is applied to a bonding system 100, and the bonding system 100 is used to bond an optical element (not shown) to a frame (not shown). The optical element can be a lens such as an optical waveguide lens, or an ordinary optical lens. Among them, the bonding system 100 includes an adsorption device 1 and a bonding mechanism 2. The adsorption device 1 is used to adsorb and fix the optical element. The bonding mechanism 2 drives the connected adsorption device 1. The bonding mechanism 2 is used to drive the adsorption device 1 to move toward or away from the frame, so that the adsorption device 1 drives the optical element to move toward or away from the frame under the drive of the bonding mechanism 2. In this way, when it is necessary to bond the optical element and the frame, the bonding mechanism 2 drives the adsorption device 1 to move toward the frame, so that the adsorption device 1 drives the optical element to move toward the frame under the drive of the bonding mechanism 2, and bonds the optical element to the frame.

[0030] Specifically, if Figure 1 and Figure 2 As shown, the adsorption device 1 includes an adsorption body 10 and an adsorption component 20 provided on the adsorption body 10. The adsorption body 10 is used to connect to the bonding mechanism 2 of the bonding system 100 so as to move under the drive of the bonding mechanism 2. The adsorption component 20 is provided on at least one outer surface 30 of the adsorption body 10 close to the optical element. For example, the adsorption component 20 can be provided on one, two or more outer surfaces 30 of the adsorption body 10, so as to adapt to the adsorption requirements in different working environments according to the needs of the work. In some embodiments, the adsorption body 10 and the adsorption component 20 can be an integrally designed structural member. In other embodiments, the adsorption component 20 can also be a mounting member fixedly mounted on the adsorption body 10 by means of screws, nuts, snaps, etc. In a preferred embodiment, the adsorption component 20 is provided on at least one outer surface 30 of the adsorption body 10 with the largest surface area. The adsorption component 20 is used to adsorb the edge area of ​​the optical element.

[0031] It is understood that an optical element includes a central region and an edge region surrounding the central region. Specifically, when the optical element is a waveguide lens, the waveguide structure is typically located in the central region of the waveguide lens. Therefore, in this embodiment, the edge region of the optical element is attracted by the adsorption assembly 20 to avoid damage to the waveguide structure due to uneven force during the adsorption process.

[0032] like Figure 3 As shown, in some embodiments, at least one outer surface 30 includes a middle portion 31 and an edge portion 32 surrounding the outer circumference of the middle portion 31, the middle portion 31 is provided with a through hole connected to the negative pressure source, and the edge portion 32 is also provided with a through hole connected to the negative pressure source. The middle portion 31 and the edge portion 32 can share part of the passage connected to the negative pressure source, or they can each form a separate passage connected to the negative pressure source; wherein, the passage diameter or cross-sectional area of ​​the middle portion 31 is larger than the passage diameter or cross-sectional area of ​​the edge portion 32.

[0033] The adsorption assembly 20 is disposed at the edge portion 32 to adsorb the edge region of the optical element.

[0034] Specifically, the adsorption body 10 may have an outer surface 30 facing the adsorption component 20, and the outer surface 30 may be a plane or a curved surface with a certain curvature; optionally, the adsorption body 10 may also have multiple outer surfaces 30 in the direction facing the adsorption component 20, and the combination of multiple outer surfaces 30 (which can work partially or multiple work in coordination) constitutes an adsorption surface capable of adsorbing optical elements. Similarly, the multiple outer surfaces 30 may be in the same plane, or may be set to a curved surface with a certain curvature as needed.

[0035] It should be noted that the same outer surface 30 refers to the outer surface 30 of the adsorption body 10 in the same direction or orientation, and is not limited to a certain plane. For example, in other optional embodiments, the adsorption body 10 is provided with corresponding multiple outer surfaces 30 in multiple directions.

[0036] like Figure 1 and Figure 2 As shown, in some embodiments, the adsorption component 20 is arranged on the outer surface 30 of the adsorption body 10 facing away from the bonding mechanism 2. In an optional embodiment, corresponding multiple outer surfaces 30 are arranged in multiple directions of the adsorption body 10. Corresponding to the multiple outer surfaces 30, multiple adsorption components 20 are also respectively arranged corresponding to the multiple outer surfaces 30; in other optional embodiments, one adsorption component 20 can also be arranged corresponding to multiple outer surfaces 30.

[0037] Furthermore, the adsorption component 20 can be attached to the edge portion 32 of the outer surface 30 by means of magnetism, adhesive, etc., or can be detachably connected to the edge portion 32 of the outer surface 30 by means of screw fixation or clamping.

[0038] In the present application, by detachably connecting the adsorption component 20 on at least one outer surface 30 of the adsorption body 10, when assembling or processing optical elements of different shapes and sizes, the corresponding adsorption component 20 matching the optical elements of different shapes and sizes can be selected for replacement, thereby meeting the assembly and processing requirements of various optical elements.

[0039] like Figure 1 and Figure 3 As shown, in some embodiments, the adsorption component 20 is composed of an adsorption member 21 and a plurality of adsorption portions 22 opened on the adsorption member 21. The adsorption portion 22 is a through hole opened on the adsorption member 21. There are at least two adsorption portions 22. The adsorption member 21 is used to contact the edge area of ​​the optical element. The plurality of adsorption portions 22 are distributed at intervals on the adsorption member 21 and are connected to the negative pressure source on the adsorption device 1, so that the optical element can be adsorbed or released by the negative pressure source.

[0040] Furthermore, an opening 23 is provided in the area of ​​the adsorption member 21 facing the middle part 31 to expose the middle part 31. When the adsorption member 21 adsorbs the optical element, the adsorption member 21 faces the edge area of ​​the optical element, the opening 23 faces the middle area of ​​the optical element, and the middle part 31 of the outer surface 30 is separated from the middle area of ​​the optical element.

[0041] In this embodiment, an opening 23 is formed in the portion of the adsorption member 21 facing the middle area of ​​the optical element, and the adsorption member 21 has a certain thickness. Therefore, when the adsorption device 1 is connected to the negative pressure source, due to the thickness of the adsorption member 21, the middle part 31 can be prevented from contacting the middle area of ​​the optical element (i.e., the area containing the waveguide structure).

[0042] Furthermore, the adsorption device 1 can also be configured so that the edge portion 32 protrudes from the plane where the middle portion 31 is located, so that it will not be affected by the thickness of the adsorption component 21. That is, regardless of whether the adsorption component 21 has thickness, since the edge portion 32 protrudes from the middle portion 31, it can also be ensured that during the negative pressure adsorption process, the middle portion 31 will not contact the middle area of ​​the optical element (that is, the area containing the waveguide structure).

[0043] like Figure 3 As shown, in one embodiment of the present application, multiple adsorption parts 22 are distributed on the adsorption part 21, so that multiple adsorption parts 22 can adsorb and fix the edge area of ​​the optical element. Preferably, the multiple adsorption parts 22 are evenly distributed on the adsorption part 21, for example, correspondingly distributed in the up and down directions, left and right directions, or diagonal directions. In this embodiment, the uniform distribution of multiple adsorption parts 22 can improve the distribution uniformity of the multiple adsorption parts 22 on the adsorption part 21, thereby improving the adsorption uniformity of the adsorption device 1 on the edge area of ​​the optical element, and effectively avoiding damage to the optical element due to excessive external force on the local part of the optical element.

[0044] Furthermore, in another embodiment of the present application, the multiple adsorption parts 22 can be arranged in multiple layers, so that the multiple layers of adsorption parts 22 can jointly adsorb the optical element, thereby improving the stability of the multiple adsorption parts 22 in adsorbing the optical element.

[0045] like Figure 3 and Figure 4 As shown, in some embodiments, the adsorption body 10 is provided with a plurality of first through holes 11, each first through hole 11 passes through the outer surface 30 and the side of the adsorption body 10 facing away from the adsorption part 21, and the plurality of first through holes 11 are connected to an air path (not shown in the figure), which can be a pipe for air to flow through. The adsorption part 22 is an adsorption hole 221, and the plurality of first through holes 11 correspond one-to-one to the plurality of adsorption holes 221, and the adsorption holes 221 are connected to the first through holes 11.

[0046] In this embodiment, each adsorption hole 221 can be connected to the air path through the corresponding first through hole 11. The air path is used to allow the airflow in the first through hole 11 to flow out of the adsorption body 10 along the air path when the adsorption component 20 adsorbs the optical element. In this way, when the adsorption component 21 contacts the edge area of ​​the optical element, a negative pressure source such as a vacuum generator can be used to suck the air in the air path to form a negative pressure in the adsorption hole 221. In this case, the external pressure on the side of the optical element away from the adsorption component 21 is greater than the pressure in the adsorption hole 221, so that the external pressure presses the edge area of ​​the optical element onto the adsorption component 21, thereby realizing the adsorption and fixation of the optical element by the adsorption component 20.

[0047] Combine Figure 3 and Figure 4 In some embodiments, the adsorption member 21 is made of EVA (ethylene-vinyl acetate copolymer) material, which has good softness and adsorption effect, thereby effectively avoiding damage to the optical element when the adsorption member 21 contacts the optical element.

[0048] like Figure 3 As shown, in some embodiments, the shape and size of the adsorption surface of the adsorption component 21 are adapted to the shape and size of the optical element. For example, when the optical element is a circular lens or a square lens, the adsorption component 21 can be circular or square, so that the adsorption surface of the adsorption component 21 is ring-shaped or square, so as to improve the stability of the adsorption component 21 in adsorbing the optical element. The adsorption surface of the adsorption component 21 is the side of the adsorption component 21 used to contact the optical element.

[0049] like Figure 3 and Figure 4 As shown, in some embodiments, the adsorption body 10 is further provided with a second through hole 12, the second through hole 12 passes through the outer surface 30 and the side of the adsorption body 10 facing away from the adsorption part 21, and the opening 23 reveals the second through hole 12; the second through hole 12 is connected to the air path, and the air path can be a pipe for air to flow through, and the air path is used to supply air to flow into the first through hole 11 and / or the second through hole 12 when the adsorption hole 221 releases the optical element.

[0050] In this embodiment, when the adsorption device 1 needs to release the optical element, air is introduced into the air path. The air can flow into the first through hole 11 and / or the second through hole 12, causing the adsorption member 21 to release the optical element. Specifically, air can flow into the first through hole 11. Since the first through hole 11 and the adsorption hole 221 are connected, the air flowing into the first through hole 11 can flow into the adsorption hole 221, thereby breaking the negative pressure state in the adsorption hole 221, and then the optical element is separated from the adsorption component 21; the air can also flow into the second through hole 12, so as to flow into the space surrounded by the adsorption body 10 and the optical element, and penetrate into the gap between the optical element and the adsorption component 21, so as to penetrate into the adsorption hole 221, thereby breaking the negative pressure state in the adsorption hole 221, and then the optical element is separated from the adsorption component 21; the air can also flow into the first through hole 11 and the second through hole 12 respectively. In this case, part of the air flows into the adsorption hole 221 through the first through hole 11, and the other part of the air penetrates into the gap between the optical element and the adsorption component 21 through the second through hole 12, so as to penetrate into the adsorption hole 221, thereby breaking the negative pressure state in the adsorption hole 221, and then the optical element is separated from the adsorption component 21.

[0051] like Figure 3 and Figure 4 As shown, in some embodiments, when the adsorption hole 221 releases the optical element, an airflow (such as air) flows from the air path into the second through hole 12, and the adsorption body 10 can be an adsorption base. The aperture of the second through hole 12 is larger than the aperture of the adsorption hole 221, and the aperture of the adsorption hole 221 is equal to the aperture of the first through hole 11, which is conducive to the air flowing from the air path into the second through hole 12, so as to flow into the space surrounded by the adsorption body 10, the adsorption part 21 and the optical element, and penetrate into the gap between the optical element and the adsorption part 21, so as to penetrate into the adsorption hole 221 and break the negative pressure state in the adsorption hole 221.

[0052] Combine 3 and Figure 4 In some embodiments, the adsorption device 1 further includes a vacuum generator (not shown in the figure), which is connected to the first through hole 11 and the second through hole 12 through a pipeline to connect to the adsorption body 10. In combination with relevant vacuum adsorption technology, a vacuum solenoid valve (not shown in the figure) is provided on the air pipe connecting the vacuum generator to the adsorption body 10. By controlling the power on and off of the vacuum solenoid valve, the adsorption body 10 is controlled to adsorb or release the optical element. Specifically, when the vacuum solenoid valve is energized, the vacuum generator sucks the air in the first through hole 11 and the adsorption hole 221, so that when the optical element is attached to the adsorption member 21, a negative pressure is formed in the adsorption hole 221, so that the adsorption member 21 adsorbs and fixes the optical element. When the vacuum solenoid valve is de-energized, the outside air enters the first through hole 11 and / or the second through hole 12 through the air path, destroying the vacuum state between the adsorption body 10 and the optical element, and balancing the pressure on both sides of the optical element along the thickness direction of the adsorption body 10. At this time, the adsorption member 21 loses its adsorption force and can release the optical element.

[0053] like Figure 4 As shown, in some embodiments, a groove 13 is provided on a side of the adsorption body 10 facing away from the adsorption member 21, and the first through hole 11 is located in the groove 13. Thus, when adsorbing an optical element, the air in the groove 13 can be sucked to thereby suck the air in the first through hole 11 and the adsorption hole 221. Exemplarily, the groove 13 is annular.

[0054] like Figure 1 As shown, in some embodiments, the bonding mechanism 100 further includes a rotating mechanism 3, which is disposed between the bonding mechanism 2 and the adsorption device 1. The adsorption device 1 is connected to the bonding mechanism 2 via the rotating mechanism 3. Specifically, the rotating mechanism 3 drives the adsorption device 1 to drive the adsorption device 1 to rotate, so that the optical element rotates under the drive of the adsorption device 1, so that the optical element and the shape of the frame are adapted, and then the optical element is aligned with the frame to improve the alignment accuracy of the optical element and the frame. The bonding mechanism 2 drives the rotating mechanism 3 to drive the rotating mechanism 3 to drive the adsorption device 1 to move toward or away from the frame, so that when the optical element is aligned with the frame, the bonding mechanism 2 drives the rotating mechanism 3 to move toward the frame, and then the adsorption device 1 drives the optical element to move toward the frame under the drive of the rotating mechanism 3, so that the optical element is bonded to the frame.

[0055] This embodiment uses a rotating mechanism 3 to drive the adsorption device 1 to rotate to rotate the optical element so that the optical element is aligned with the frame, that is, the rotating mechanism 3 is used to adjust the optical element. Compared with using manual fine-tuning screws and nuts, more precise and automated adjustments can be achieved, as well as faster and more accurate adjustments of the optical element to the frame, so as to achieve alignment and fitting of the optical element and the frame.

[0056] like Figure 1 As shown, in some embodiments, the bonding system 100 further includes a detection member 4, which is disposed on the rotating mechanism 3 and is used to detect the pressure exerted on the optical element, for example, the pressure exerted on the optical element when bonded to the frame, and the pressure exerted by the external air on the optical element when the optical element is adsorbed by the adsorption device 1, thereby effectively preventing the optical element from being crushed. Exemplarily, the detection member 4 may be a pressure sensor.

[0057] Combine Figure 1In some embodiments, the laminating system 100 further includes a controller (not shown) and a visual inspection device (not shown). The controller is an existing controller capable of performing image processing, algorithm processing, data calculation, etc., and the visual inspection device can be a camera. The controller can remotely control the adjustment mechanism and the visual inspection device via wireless communication technology, thereby improving operational flexibility. The visual inspection device is used to photograph the optical element and the frame. The controller compares the image of the optical element with the image of the frame, thereby controlling the rotation mechanism 3 to drive the adsorption body 10 to rotate, thereby rotating the optical element and aligning the optical element with the frame, thereby improving the degree of automation.

[0058] The above description is only a preferred embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present application.

Claims

1. An adsorption device, used in a laminating system, characterized in that: The adsorption device comprises: an adsorption body, the adsorption body being used to connect to the bonding mechanism of the bonding system so as to move under the drive of the bonding mechanism; The adsorption component is arranged on at least one outer surface of the adsorption body close to the optical element and is used for adsorbing the edge area of ​​the optical element.

2. The adsorption device according to claim 1, characterized in that The at least one outer surface includes a middle portion and an edge portion surrounding the outer periphery of the middle portion, and the adsorption component is arranged on the edge portion.

3. The adsorption device according to claim 2, characterized in that: The adsorption assembly includes an adsorption member and a plurality of adsorption parts, and the plurality of adsorption parts are distributed on the adsorption member at intervals to jointly adsorb the edge area of ​​the optical element.

4. The adsorption device according to claim 3, characterized in that An opening is provided in the area facing the middle part of the adsorption member. When the adsorption member adsorbs the optical element, the adsorption member faces the edge area of ​​the optical element, the opening faces the middle area of ​​the optical element, and the middle part of the outer surface is separated from the middle area of ​​the optical element.

5. The adsorption device according to claim 4, characterized in that: The adsorption body is provided with a plurality of first through holes, each of the first through holes passes through the outer surface and a side of the adsorption body facing away from the adsorption member, and the plurality of first through holes are all connected to the air path; The adsorption portion is an adsorption hole, the plurality of first through holes correspond to the plurality of adsorption holes one-to-one, and the adsorption holes are communicated with the first through holes.

6. The adsorption device according to claim 5, characterized in that: The adsorption body is also provided with a second through hole, which passes through the outer surface and the side of the adsorption body facing away from the adsorption part, and the opening reveals the second through hole, which is connected to the air path, and the air path is used to supply air flow into the second through hole and / or the first through hole when the adsorption hole releases the optical element.

7. The adsorption device according to claim 5, characterized in that: A groove is provided on a side of the adsorption body facing away from the adsorption component, and the first through hole is located in the groove.

8. A laminating system, characterized in that: It comprises a bonding mechanism and an adsorption device according to any one of claims 1 to 7, wherein the bonding mechanism drives the side of the adsorption body connected to face away from the adsorption component, and the bonding mechanism is used to drive the adsorption body to move, so as to drive the optical element to move toward or away from the frame.

9. The laminating system according to claim 8, characterized in that: The laminating system further includes a rotating mechanism, which is provided between the laminating mechanism and the adsorption body, and the adsorption body is connected to the laminating mechanism via the rotating mechanism; The rotating mechanism is used to drive the adsorption body to rotate, thereby driving the optical element to rotate, so that the optical element adapts to the shape of the frame. The rotating mechanism is also used to drive the adsorption body to move towards or away from the frame under the drive of the fitting mechanism.

10. The laminating system according to claim 9, characterized in that: The bonding system further includes a force detection component, which is provided on the rotating mechanism and is used to detect the pressure exerted on the optical element.

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