bonding device and method

Abstract

This application relates to a bonding apparatus and method. The bonding apparatus includes a pressing member having a pressing curved surface that is at least partially protruding, the pressing curved surface being used to carry an optical film along a first direction; a first carrier member for carrying a lens along the first direction; a mounting curved surface curved toward the first carrier member on a side of the lens facing away from the first carrier member; and a first heating member for preheating the optical film. The first carrier member and the pressing member are configured to generate relative movement along the first direction, so that the optical film is bonded to the mounting curved surface. Along the first direction, the pressing member has a pre-bonding position. The curvature of the pressing curved surface is greater than the curvature of the mounting curved surface, so that when the pressing member is in the pre-bonding position, the middle region of the optical film contacts the middle region of the lens. The technical solution of this application can improve the bonding effect between the optical film and the lens, thereby improving the optical performance of the lens.

Description

Technical Field

[0001] This application relates to the field of optical product processing, and in particular to a bonding device and method. Background Technology

[0002] After the lens is manufactured, an optical film needs to be applied to it. However, currently, the adhesion between the optical film and the lens is not good, which affects the optical performance of the lens. Summary of the Invention

[0003] Based on this, a bonding device and method are provided to improve the bonding effect between the optical film and the lens, thereby enhancing the optical performance of the lens.

[0004] According to one aspect of this application, a bonding device is provided, comprising:

[0005] The press-fit component has a press-fit surface that is at least partially protruding, the press-fit surface being used to carry an optical film along a first direction;

[0006] A first support member is used to support a lens along a first direction; the lens has a mounting surface that curves toward the first support member on the side opposite to the first support member; and

[0007] The first heating element is used to preheat the optical film;

[0008] The first carrier and the pressing component are configured to move relative to each other along a first direction so that the optical film is attached to the mounting surface.

[0009] Along the first direction, the press-fit component has a pre-fit position; the curvature of the press-fit surface is greater than the curvature of the mounting surface, so that when the press-fit component is in the pre-fit position, the middle region of the optical film contacts the middle region of the lens.

[0010] In some embodiments, adsorption holes are provided on the pressed curved surface;

[0011] Among them, the pressed curved surface can fix the optical film by means of adsorption holes; and / or

[0012] The pressed curved surface can release the optical film through adsorption holes.

[0013] In some embodiments, the pressing member includes a first receiving portion and a pressing head; the first receiving portion has a first opening and a first cavity communicating with the first opening; the pressing head is connected to the first receiving portion and has a pressing curved surface.

[0014] The first receiving portion and the first carrier are configured to be able to be sealed to each other along the first direction via the first opening, and the first receiving portion is configured to be able to pressurize the first cavity.

[0015] In some embodiments, the pressure head is provided with a first heating element.

[0016] In some embodiments, the first carrier has a bearing surface for accommodating a lens;

[0017] During the relative movement of the first receiving portion and the first carrier member along the first direction, the first receiving portion can cover the carrier surface by means of the first opening, so that the first carrier member and the first receiving portion are sealed together.

[0018] In some embodiments, the pressure head is movably connected to the inner wall of the first receiving portion along a first direction.

[0019] In some embodiments, the first carrier includes a second receiving portion, the second receiving portion having a bearing surface, the bearing surface having a first through hole;

[0020] The second receiving part is configured to perform a vacuuming operation and to adsorb and fix the lens on the bearing surface by means of the first through hole.

[0021] In some embodiments, the bonding device further includes a detection element configured to be located on the bonding path of the optical film and the lens for detecting the relative position between the optical film and the lens;

[0022] In this embodiment, at least one of the first carrier and the pressing member is capable of responding to the detection signal of the detection member to cause relative movement between the first carrier and the pressing member, so as to adjust the relative position of the first carrier and the pressing member and make the optical film and the lens relative to each other.

[0023] In some embodiments, the bonding device includes a forming station and a bonding station; a first carrier is disposed at the bonding station;

[0024] The bonding device also includes a second support member located at the forming station; the second support member is used to support the optical film to be formed;

[0025] The pressing component is configured to move between the forming station and the bonding station;

[0026] The pressing component is used to cooperate with the second carrier component in a relative movement along a first direction at the forming station to form the optical film to be formed, and to transfer the formed optical film to the bonding station to bond it to the lens of the first carrier component.

[0027] In some embodiments, the bonding device further includes a second heating element for heating the optical film to be formed on the second carrier.

[0028] In some embodiments, the pressing member includes a first receiving portion and a pressing head; the first receiving portion has a first opening and a first cavity communicating with the first opening; the pressing head is connected to the first receiving portion and has a pressing curved surface.

[0029] The first receiving part and the second carrier are configured to be able to be sealed to each other along the first direction through the first opening, and the second carrier is used to apply pressure to the side of the optical film to be formed facing the pressing surface, so that the optical film to be formed is formed.

[0030] In some embodiments, the second carrier has a fixing surface for supporting the optical film to be formed; the fixing surface has a second through hole;

[0031] During the relative movement of the first receiving part and the second bearing member along the first direction, the first receiving part can be covered by the first opening on the fixed surface so that the second bearing member and the first receiving part are sealed together.

[0032] The second carrier is configured to apply pressure to the side of the optical film to be formed facing the pressing surface via the second through hole.

[0033] In some embodiments, the second carrier includes a third receiving portion;

[0034] The fixing surface is located in the third receiving part; when the first receiving part covers the fixing surface, the first receiving part and the third receiving part are sealed together, and both the first receiving part and the third receiving part are configured to perform vacuuming operations.

[0035] According to another aspect of this application, a bonding method is provided, comprising:

[0036] The lens is carried by the first carrier along the first direction;

[0037] The formed optical film is carried by the pressing surface of the pressing component along the first direction; the pressing surface is configured to be at least partially convex.

[0038] Preheat the optical film on the pressed part;

[0039] The first carrier and the pressing member are controlled to move relative to each other along a first direction so that the optical film is attached to the lens; the first carrier and the pressing member are arranged relative to each other along the first direction.

[0040] In this process, along the first direction, the pressing component has a pre-fitting position; the curvature of the pressing surface is greater than the curvature of the mounting surface of the lens, and when the pressing component is in the pre-fitting position, the middle region of the optical film is in contact with the middle region of the lens.

[0041] In some embodiments, controlling the relative movement of the first carrier and the pressing member along a first direction to cause the optical film to adhere to the lens includes:

[0042] After the middle region of the optical film contacts the middle region of the lens, the pressing component releases the optical film.

[0043] By applying pressure along the first direction toward the optical film, the edge region of the optical film is made to adhere to the edge region of the lens.

[0044] In some embodiments, before controlling the first carrier and the pressing member to move relative to each other along a first direction to allow the optical film to adhere to the lens, the method further includes:

[0045] Check whether the optical film and the lens are aligned;

[0046] If not, adjust the relative positions of the first carrier and the pressing member to make the optical film and the lens aligned.

[0047] In some embodiments, before the formed optical film is carried along the first direction by the pressing surface of the presser, the following steps are also included:

[0048] The optical film to be formed is carried by the second carrier;

[0049] The pressing component and the second carrier component are controlled to move relative to each other in a first direction to form the optical film to be formed;

[0050] Control the already formed optical film to be fixed to the pressing surface of the pressing part.

[0051] In some embodiments, controlling the relative movement of the pressing member and the second carrier member along a first direction to form the optical film to be formed includes:

[0052] The optical film is pressed along the first direction toward the side of the pressed surface to make the optical film adhere to the pressed surface.

[0053] In some embodiments, before controlling the relative movement of the pressing member and the second carrier member along a first direction to form the optical film to be formed, the method further includes:

[0054] The optical film to be formed on the second carrier is heated to soften the optical film.

[0055] In the aforementioned bonding apparatus and method, the bonding apparatus includes at least a first carrier, a pressing member, and a first heating member. The first carrier carries a lens, and the lens has a mounting surface curved toward the first carrier on the side opposite to the carrier. The pressing member has a pressing surface that is at least partially protruding. The optical film is softened by preheating it with the first heating member, and the curvature of the pressing surface is set to be greater than the curvature of the mounting surface. Thus, during the relative movement of the first carrier and the pressing member along a first direction, when the pressing member is in the pre-bonding position, the central region of the optical film contacts the central region of the lens. This facilitates the gradual bonding of the optical film to the mounting surface of the lens from the center region to the edge region, reduces the formation of air bubbles between the optical film and the lens, improves the bonding effect between the optical film and the lens, and enhances the optical performance of the lens. Attached Figure Description

[0056] Figures 1a to 1f This is a schematic diagram illustrating the process of an optical film being formed and then bonded to a lens in one embodiment of a related technology.

[0057] Figure 2 This is a schematic diagram of the bonding device in one embodiment of this application.

[0058] Figure 3 for Figure 2 A schematic diagram showing the relative positions of the optical film and lens during the bonding process.

[0059] Figure 4 for Figure 2 A partial cross-sectional view of the press-fit component.

[0060] Figure 5 for Figure 2 A schematic diagram of the pressure head structure.

[0061] Figure 6 for Figure 5 A schematic diagram of the exploded structure of the pressure head.

[0062] Figure 7 This is a schematic diagram of the bonding device in another embodiment of this application.

[0063] Figure 8 for Figure 7 A schematic diagram of the bonding device in the state of the pressing component and the second carrier component during the optical film forming process.

[0064] Figure 9 This is a schematic flowchart of the bonding method in one embodiment of this application.

[0065] Figure 10 for Figure 9 A schematic diagram of the specific process for step S94.

[0066] Figure 11 This is a flowchart illustrating the bonding method in another embodiment of this application.

[0067] Figure 12 This is a flowchart illustrating the bonding method in another embodiment of this application.

[0068] Figure 13 for Figure 12 A schematic diagram of the specific process for step S122.

[0069] Figure 14 This is a flowchart illustrating the bonding method in another embodiment of this application.

[0070] Figures 15a to 15g This is a schematic diagram illustrating the process of forming and attaching the optical film to the lens in one embodiment of this application.

[0071] Explanation of reference numerals in the attached figures:

[0072] Optical film 10;

[0073] Lens 20, mounting surface 20a;

[0074] Infrared lamp 30, contour plate 40;

[0075] Adhesion device 100;

[0076] Pressing part 110, pressing curved surface 110a, adsorption hole Q, first receiving part 111, first opening 111a, first cavity 111b, pressing head 112, pressing plate 1121, connecting plate 1122, connecting part 113;

[0077] First bearing member 120, bearing surface 120a, second receiving part 121, second cavity 121a, first through hole M1, bearing part 122;

[0078] First heating element 130, heat conducting plate 131, electric heating film 132, heat insulation plate 133, thermocouple 134;

[0079] Item 140 was inspected;

[0080] Second bearing member 150, fixing surface 150a, second through hole M2, third receiving part 151, third cavity 151a;

[0081] Second heating element 160;

[0082] First direction F1;

[0083] Region 1 r1, Region 2 r2, Region 3 r3, Region 4 r4;

[0084] Pressurization operation P. Detailed Implementation

[0085] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0086] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0087] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0088] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0089] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0090] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0091] In related technologies, during the process of forming and bonding the unformed optical film 10 to the lens 20, such as Figure 1a As shown, firstly, the optical film 10 in a flat state is heated and softened using an infrared lamp 30. Then, the optical film 10 is shaped using a molding plate 40 under pressure operation P, resulting in the following: Figure 1b The optical film 10 shown, before being attached to the lens 20, is as follows: Figure 1c and Figure 1d As shown, the optical film 10 on the molding plate 40 is heated again using the infrared lamp 30. However, the optical film 10 shrinks due to the heat, causing it to return to a nearly flat state. Therefore, as... Figure 1e and Figure 1f As shown, when the pressurization operation P is performed, the two sides of the optical film 10 first come into contact with the lens 20 and are stretched and deformed until they adhere to the vertex (center point) of the curved surface of the lens 20. As a result, there will be a large stress change at the vertex (center point) of the optical film 10, and the adhesion method from the outside to the inside cannot effectively remove the gas, resulting in air bubbles remaining in the center of the optical film 10 and the lens 20.

[0092] Based on this, embodiments of this application provide a bonding device and method to improve the bonding effect between the optical film and the lens, thereby enhancing the optical performance of the lens.

[0093] See Figure 2 and Figure 3 , Figure 2 A schematic diagram of the bonding device according to an embodiment of this application is shown. Figure 3It shows Figure 2 This is a schematic diagram showing the relative positions of the optical film and the lens during the bonding process. The bonding device 100 of this embodiment includes a pressing member 110, a first carrier member 120, and a first heating member 130. The pressing member 110 has a pressing curved surface 110a that is at least partially protruding, which is used to carry the optical film 10 along a first direction F1. The first carrier member 120 is used to carry the lens 20 along the first direction F1. The side of the lens 20 facing away from the first carrier member 120 has a mounting curved surface 20a that bends towards the first carrier member 120. The first heating member 130 is used to preheat the optical film 10. The first carrier 120 and the pressing member 110 are configured to move relative to each other along the first direction F1 so that the optical film 10 is attached to the mounting surface 20a. The pressing member 110 has a pre-attached position along the first direction F1. The curvature of the pressing surface 110a is greater than the curvature of the mounting surface 20a so that when the pressing member 110 is in the pre-attached position, the middle region of the optical film 10 (i.e., the first region r1) is in contact with the middle region of the lens 20 (i.e., the third region r3).

[0094] The first support member 120 refers to a component used to support the lens 20. The first support member 120 is equipped with a drive mechanism that can drive the first support member 120 to move. The first support member 120 can detachably fix the lens 20. The lens 20 has a mounting surface 20a, which is a concave mounting surface.

[0095] The pressing component 110 refers to the member used to support the optical film 10 and attach it to the lens 20. The pressing component 110 is also equipped with a corresponding driving mechanism that can drive the pressing component 110 to move relative to the first support component 120. The pressing surface 110a refers to the contoured surface used to shape the optical film 10. The pressing surface 110a can be constructed as a convex surface, or a portion of the pressing surface 110a can be constructed as such. The pre-attachment position refers to the relative contact position between the pressing surface 110a of the pressing component 110 and the mounting surface 20a of the lens 20. It should be noted that both the pressing surface 110a and the mounting surface 20a can be constructed as uniform surfaces. The curvature of the pressing surface 110a refers to the degree of curvature at the center point of the pressing surface 110a. The curvature of the lens 20 refers to the degree of curvature of the mounting surface 20a of the lens 20 at the optical axis. The greater the curvature, the greater the degree of curvature of the corresponding surface. The curvature of the pressing surface 110a is greater than that of the mounting surface 20a. Furthermore, since the central region of the optical film 10 on the pressing member 110 can contact the central region of the lens 20 in the pre-fitting position, the curvature of the side of the optical film 10 facing away from the pressing surface 110a is greater than that of the mounting surface 20a. Additionally, the central region of the optical film 10 refers to a portion of the surface of the optical film 10 facing away from the pressing surface 110a, surrounding its optical axis. The central region of the lens 20 refers to a portion of the surface of the mounting surface 20a surrounding the optical axis of the lens 20.

[0096] The first heating element 130 refers to the component used to heat the formed optical film 10. The first heating element 130 can adopt a direct heating method or an indirect heating method, and can be set according to the actual situation, without any restrictions here.

[0097] Specifically, the relative positions of the pressing member 110 and the first carrier member 120 are adjusted by driving, so that the pressing member 110 and the first carrier member 120 are positioned relative to each other along the first direction F1. Further, the pressing member 110 can be driven to move towards the first carrier member 120 along the first direction F1, or the first carrier member 120 can be driven to move towards the pressing member 110 along the first direction F1, or the pressing member 110 and the first carrier member 120 can be driven to move relative to each other along the first direction F1 at the same time, so that the distance between them is reduced, thereby the middle area of ​​the optical film 10 on the pressing member 110 contacts the middle area of ​​the lens 20 in the pre-fitting position.

[0098] In this embodiment, a pressing member 110 and a first carrier member 120 are provided that can generate relative movement along the first direction F1. The first carrier member 120 is used to carry the lens 20, and the pressing surface 110a on the pressing member 110 is used to carry the optical film 10. The curvature of the side surface of the optical film 10 facing away from the pressing surface 110a is greater than the curvature of the mounting surface 20a. Thus, during the relative movement of the first carrier 120 and the pressing member 110 along the first direction F1, when the pressing member 110 is in the pre-bonding position, the middle region of the optical film 10 (i.e., the first region r1) comes into contact with the middle region of the lens 20 (i.e., the third region r3). ​​This facilitates the gradual bonding of the optical film 10 from the center region to the edge region (i.e., the second region r2) to the center region to the edge region (i.e., the fourth region r4) of the lens 20, thereby reducing the occurrence of air bubbles between the optical film 10 and the lens 20, improving the bonding effect between the optical film 10 and the lens 20, and enhancing the optical performance of the lens 20.

[0099] Compared to related technologies, where the molding platen 40 is only used to form the optical film 10, the formed optical film 10 shrinks and deforms during preheating, resulting in significant tensile stress on the optical film 10 during subsequent bonding and residual air bubbles between the optical film 10 and the lens 20. In this embodiment, the pressing surface 110a of the pressing member 110 supports the formed optical film 10, thus minimizing deformation of the optical film 10 during preheating until it is transferred and bonded to the lens 20. This reduces the significant stress and tension in the central area of ​​the optical film 10 during bonding. Furthermore, the optical film 10 gradually bonds to the mounting surface 20a of the lens 20 from the center to the edge, reducing the occurrence of air bubbles between the optical film 10 and the lens 20, improving the bonding effect between the optical film 10 and the lens 20, and enhancing the optical performance of the lens 20.

[0100] Please see Figure 4 In some embodiments, the pressed curved surface 110a is provided with adsorption holes Q. The pressed curved surface 110a can fix the optical film 10 using the adsorption holes Q. And / or, the pressed curved surface 110a can release the optical film 10 using the adsorption holes Q.

[0101] Specifically, one or more adsorption holes Q can be formed on the pressing surface 110a, and the shape and size of the adsorption holes Q are not limited. In some specific embodiments, multiple adsorption holes Q can be arranged at intervals along the circumferential direction of the pressing surface 110a. By performing a vacuum operation on the adsorption holes Q, the optical film 10 can be adsorbed and fixed to the pressing surface 110a. Alternatively, by applying a certain pressure operation P to the adsorption holes Q, the pressing component 110 can release the optical film 10. In this way, before the optical film 10 is bonded to the lens 20, the optical film 10 can be adsorbed and fixed by the pressing surface 110a to maintain its shape until the central area of ​​the optical film 10 contacts the central area of ​​the lens 20. At this point, the optical film 10 is released through the adsorption holes Q, which helps to achieve efficient bonding between the optical film 10 and the lens 20.

[0102] Please see Figure 5 and combined Figure 2 In some embodiments, the pressing member 110 includes a first receiving portion 111 and a pressing head 112. The first receiving portion 111 has a first opening 111a and a first cavity 111b communicating with the first opening 111a. The pressing head 112 is connected to the first receiving portion 111 and has a pressing surface 110a. The first receiving portion 111 and the first carrier member 120 are configured to be sealingly connected to each other along a first direction F1 via the first opening 111a, and the first receiving portion 111 is configured to be able to pressurize the first cavity 111b by a pressurization operation P.

[0103] It should be noted that the first receiving portion 111 refers to a chamber with a receiving space. The pressing head 112 is a component used to form and fix the optical film 10. The first receiving portion 111 has a first opening 111a. The pressing head 112 is movably connected to the inner wall of the first receiving portion 111 along the first direction F1, and the pressing surface 110a is located on the pressing head 112.

[0104] In some specific embodiments, the pressing head 112 is equipped with a corresponding guide mechanism (not shown in the figure), which drives the pressing head 112 to reciprocate along a first direction F1 from inside the first receiving portion 111 to outside the first receiving portion 111. Specifically, the pressing member 110 also includes a connecting portion 113, which connects the pressing head 112 and the guide mechanism, and the connecting portion 113 passes through the inner wall of the first receiving portion 111 along the first direction F1. In addition, the first receiving portion 111 may be equipped with a corresponding guide mechanism (not shown in the figure), which drives the first receiving portion 111 to reciprocate along the first direction F1.

[0105] During the relative movement of the first receiving portion 111 towards the first carrier 120 along the first direction F1, the first receiving portion 111 can cooperate with the first carrier 120 through the first opening 111a to achieve a sealed connection, so that the lens 20 is placed inside the sealed first receiving portion 111. Furthermore, a vacuum operation can be performed inside the sealed first receiving portion 111, thereby improving the efficiency of the subsequent pressurization operation P. Then, the optical film 10 on the pressing surface 110a is preheated using the first heating element 130, and then the pressing head 112 is driven to move towards the lens 20 along the first direction F1 and move to the pre-bonding position. In this way, the forming state of the optical film 10 can be maintained as much as possible during this period, and the middle area of ​​the optical film 10 can be made to contact the middle area of ​​the lens 20. Furthermore, the pressure head 112 is operated to release the optical film 10 from the pressing surface 110a, and then pressure is applied to the first receiving portion 111 by operation P to cause the optical film 10 to gradually adhere to the lens 20 from the middle region to the edge region. This reduces the occurrence of air bubbles between the optical film 10 and the lens 20, and reduces stress stretching of the optical film 10 during the adhesion process, thereby improving the adhesion effect between the optical film 10 and the lens 20.

[0106] Continue reading Figure 4 and combined Figure 6 In some embodiments, the pressure head 112 is provided with a first heating element 130. Specifically, in some embodiments, the pressure head 112 includes a pressure plate 1121 and a connecting plate 1122 spaced apart along a first direction F1, with a gap between the pressure plate 1121 and the connecting plate 1122. The pressure plate 1121 is provided with a pressing curved surface 110a, and the connecting plate 1122 is used to connect the connecting portion 113. The first heating element 130 includes at least a heat-conducting plate 131 and an electric heating film 132 connected sequentially along the first direction F1, and the heat-conducting plate 131 and the electric heating film 132 are located within the gap, with the heat-conducting plate 131 connected to the pressure plate 1121 and the electric heating film 132 connected to the connecting plate 1122. Further, the first heating element 130 may also include a heat insulation plate 133, which is disposed between the electric heating film 132 and the connecting plate 1122. Furthermore, the first heating element 130 may also include a thermocouple 134, which is connected to the heating film 132 and is used to measure the heating temperature of the heating film 132.

[0107] Thus, during the relative movement of the pressing member 110 and the first carrier member 120 along the first direction F1, the optical film 10 can be heated directly by the electrothermal film 132 provided on the pressing head 112, so that the optical film 10 is kept in a shaped state until the optical film 10 contacts the lens 20. This can reduce the cooling deformation of the optical film 10 and make it more conducive to the optical film 10 adhering to the lens 20.

[0108] Table 1

[0109]

[0110] Please refer to Table 1, which shows the temperature uniformity test data for heating the pressure plate 1121 using the first heating element 130 on the pressure head. Through multiple tests at four locations on the pressure plate 1121, the calculated average temperature error was less than 1%. In contrast, related technologies use infrared lamps 30 to heat and soften the formed optical film 10, resulting in an average temperature error exceeding 5%. Therefore, in this embodiment, the first heating element 130 is directly disposed on the pressure head 112, which allows the optical film 10 on the pressure head 112 to be heated uniformly, improving the consistency of softening and thus helping the optical film 10 to fully adhere to the lens 20.

[0111] Continue reading Figure 2 In some embodiments, the first carrier 120 has a carrier surface 120a for accommodating the lens 20. During the relative movement of the first receiving portion 111 and the first carrier 120 along the first direction F1, the first receiving portion 111 can cover the carrier surface 120a by means of the first opening 111a, so that the first carrier 120 and the first receiving portion 111 are sealed together.

[0112] Specifically, the bearing surface 120a is a platform surface used to support the lens 20. The lens 20 can be directly supported on the bearing surface 120a. Alternatively, the lens 20 can be indirectly supported on the bearing surface 120a through the provision of the bearing part 122, such as... Figure 2 As shown, the size of the bearing surface 120a matches the size of the first opening 111a of the first receiving portion 111, so that the first receiving portion 111 can cover the bearing surface 120a through the first opening 111a. Furthermore, a sealing ring can be provided between the first bearing member 120 and the first receiving portion 111 to improve the sealing effect. This facilitates subsequent pressure application P to the optical film 10 in contact with the lens 20.

[0113] In some embodiments, the first carrier 120 includes a second receiving portion 121, the second receiving portion 121 having a bearing surface 120a, the bearing surface 120a having a first through hole M1. The second receiving portion 121 is configured to perform a vacuuming operation and, via the first through hole M1, adsorb and fix the lens 20 on the bearing surface 120a.

[0114] Specifically, the second receiving portion 121 has a second cavity 121a, and the first through hole M1 communicates with the second cavity 121a. The first through hole M1 can be directly formed on the bearing surface 120a, or it can be connected to the first through hole M1 through the bearing portion 122 passing through the bearing surface 120a. The lens 20 can cover the opening of the first through hole M1. By performing a vacuum operation on the second receiving portion 121, the lens 20 can be adsorbed and fixed by means of the first through hole M1. In this way, it is convenient for the optical film 10 to be attached to the lens 20, the lens 20 is not easy to move, the attachment accuracy is improved, and the lens 20 can be detachably fixed, improving the convenience of operation.

[0115] Continue reading Figure 2 In some embodiments, the bonding device 100 further includes a detection element 140. The detection element 140 is configured to be located on the bonding path of the optical film 10 and the lens 20, and is used to detect the relative position between the optical film 10 and the lens 20. At least one of the first carrier 120 and the pressing member 110 is capable of relative movement in response to the detection signal from the detection element 140, thereby adjusting the relative position of the first carrier 120 and the pressing member 110 so that the optical film 10 and the lens 20 are aligned.

[0116] Specifically, the detection component 140 refers to the part used to detect the relative position of the optical film 10 and the lens 20. This detection component 140 can be a separate camera, laser sensor, or other position detection sensor, or it can be a vision positioning platform (UVW platform), without limitation. The detection component 140 is equipped with a drive mechanism (not shown in the figure) that can move relative to the pressing component 110 and the first carrier 120. After the pressing component 110 and the first carrier 120 are positioned approximately relative to each other along the first direction F1, the detection component 140 detects the relative position between the optical film 10 and the lens 20. If the optical axis of the optical film 10 and the optical axis of the lens 20 are not aligned along the first direction F1, the position of the first carrier 120 can be adjusted, or the position of the pressing component 110 can be adjusted, or the positions of both the first carrier 120 and the pressing component 110 can be adjusted simultaneously, so that the optical film 10 on the pressing component 110 is aligned with the lens 20.

[0117] In some embodiments, a plurality of adsorption holes Q are circumferentially spaced on the pressed surface 110a, and the detection element 140 can detect the center point of the pressed surface 110a using the plurality of adsorption holes Q. Specifically, the detection element 140 is configured as a camera, and by taking a picture of the pressed surface 110a, the center point of the pressed surface 110a is fitted using the plurality of adsorption holes Q as feature points. Since the pressed surface 110a is a contoured surface of the optical film 10, the optical axis of the optical film 10 passes through the center point of the pressed surface. The detection element 140 further detects the center point of the mounting surface 20a of the lens 20, and calculates whether the center point of the pressed surface 110a and the center point of the mounting surface 20a are aligned in the first direction F1. In this way, the alignment between the optical film 10 and the lens 20 can be detected, thereby improving the bonding accuracy between the optical film 10 and the lens 20.

[0118] Please see Figure 7 and Figure 8 In some embodiments, the bonding apparatus 100 includes a forming station and a bonding station. A first carrier 120 is disposed at the bonding station. The bonding apparatus 100 also includes a second carrier 150 disposed at the forming station. The second carrier 150 is used to carry the optical film 10 to be formed. The pressing member 110 is configured to move between the forming station and the bonding station. The pressing member 110 is used to cooperate with the second carrier 150 in a relative movement along a first direction F1 at the forming station to form the optical film 10 to be formed, and to transfer the formed optical film 10 to the bonding station for bonding onto the lens 20 of the first carrier 120.

[0119] It should be noted that the forming station refers to the station used to form the optical film 10 to be formed. The bonding station refers to the station used to bond the formed optical film 10 to the lens 20. The second carrier 150 refers to the component that carries the optical film 10 to be formed. The pressing component 110 is equipped with a corresponding driving mechanism, and the pressing component 110 can reciprocate between the bonding station and the forming station under the action of the driving mechanism to repeat the forming operation and the bonding operation.

[0120] Specifically, at the forming station, the pressing component 110 can move relative to the second carrier component 150 along the first direction F1 and approach the optical film 10 to be formed on the second carrier component 150. Through the cooperation between the pressing component 110 and the second carrier component 150, the optical film 10 to be formed on the second carrier component 150 can be pressed into shape to obtain the desired optical film 10. Next, the pressing component 110 is driven to transfer the optical film 10 to the bonding station, and the relative position between the pressing component 110 and the first carrier component 120 is adjusted so that the subsequently formed optical film 10 can be bonded to the lens 20. In this way, the pressing component 110 assists in the forming of the optical film 10, and then the pressing component 110 is used to transfer and bond the formed optical film 10 to the lens 20. During this transfer and bonding process, the optical film 10 can maintain its formed state as much as possible and is not easily deformed.

[0121] In some embodiments, the bonding device 100 further includes a second heating element 160 for heating the optical film 10 on the second carrier 150.

[0122] Specifically, the second heating element 160 refers to a component used to heat the optical film 10 to be formed. This second heating element 160 can be an infrared lamp. In some specific embodiments, the bottom wall of the first cavity 111b can be made of sapphire glass or quartz glass, and the second heating element 160, i.e., an infrared lamp, can be disposed outside this bottom wall. This infrared lamp can penetrate the bottom wall of the first cavity 111b to heat the optical film 10. Thus, by heating the optical film 10 to be formed using the second heating element 160, it is softened, making it easier for the optical film 10 to adhere to the pressing surface 110a for forming.

[0123] Continue reading Figure 7 In some embodiments, the pressing member 110 includes a first receiving portion 111 and a pressing head 112; the first receiving portion 111 has a first opening 111a and a first cavity 111b communicating with the first opening 111a. The pressing head 112 is connected to the first receiving portion 111 and has a pressing curved surface 110a. The first receiving portion 111 and the second carrier member 150 are configured to be sealingly connected to each other along a first direction F1 via the first opening 111a, and the second carrier member 150 applies pressure P to the side of the optical film 10 to be formed facing the pressing curved surface 110a, thereby forming the optical film 10.

[0124] It should be noted that, at the forming station, the first receiving portion 111 of the pressing component 110 cooperates with the second carrier component 150 to form the optical film 10 to be formed. At the bonding station, the first receiving portion 111 of the pressing component 110 cooperates with the first carrier component 120 to apply pressure P to the formed optical film 10 to bond it to the lens 20. The pressing head 112 is movably connected to the inner wall of the first receiving portion 111 along the first direction F1, and the pressing surface 110a is located at the pressing head 112.

[0125] In some specific embodiments, the first receiving portion 111 may be configured with a corresponding guide mechanism, which can drive the first receiving portion 111 to reciprocate along the first direction F1. The pressing head 112 may pass through the first receiving portion 111 and may be configured with a corresponding guide mechanism, which can drive the pressing head 112 to reciprocate from inside the first receiving portion 111 to outside the first receiving portion 111 along the first direction F1.

[0126] At the bonding station, during the relative movement of the first receiving portion 111 towards the second carrier 150 along the first direction F1, the first receiving portion 111 can cooperate with the second carrier 150 through the first opening 111a to achieve a sealed connection, so that the optical film 10 to be formed is placed in the sealed first receiving portion 111, and the pressing head 112 of the pressing member 110 is driven to move along the first direction F1 so that the pressing surface 110a contacts the optical film 10 to be formed. Further, the second heating member 160 can be used to start the heating operation on the optical film 10 to be formed, so as to soften it. Then, the second carrier 150 applies pressure operation P to the side of the optical film 10 to be formed facing the pressing surface 110a, so that the softened optical film 10 can be bonded to the pressing surface 110a, thereby completing the forming operation. Furthermore, by performing a vacuum operation on the adsorption holes Q on the pressing surface 110a, the pressing surface 110a adsorbs and fixes the formed optical film 10, thereby facilitating the transfer of the formed optical film 10 to the bonding station.

[0127] Continue reading Figure 7 In some embodiments, the second carrier 150 has a fixing surface 150a for supporting the optical film 10 to be formed. The fixing surface 150a has a second through hole M2. During the relative movement of the first receiving portion 111 and the second carrier 150 along the first direction F1, the first receiving portion 111 can cover the fixing surface 150a through the first opening 111a, so that the second carrier 150 and the first receiving portion 111 are sealed together. The second carrier 150 is configured to apply pressure P to the side of the optical film 10 to be formed facing the pressing surface 110a through the second through hole M2.

[0128] Specifically, the fixing surface 150a refers to the surface used to support the optical film 10 to be formed. The size of the fixing surface 150a matches the size of the first opening 111a of the first receiving portion 111, so that the first receiving portion 111 can cover the fixing surface 150a through the first opening 111a. In addition, a sealing ring can be provided between the fixing surface 150a and the first receiving portion 111 to improve the sealing effect. The second through hole M2 can be connected to an inflation tube. Thus, inflation of the second through hole M2 realizes the pressurization operation P of the optical film 10, thereby enabling the optical film 10 to be formed on the pressing curved surface 110a.

[0129] In some embodiments, the second carrier 150 includes a third receiving portion 151. A fixing surface 150a is located on the third receiving portion 151. When the first receiving portion 111 covers the fixing surface 150a, the first receiving portion 111 and the third receiving portion 151 are sealed together, and both the first receiving portion 111 and the third receiving portion 151 are configured to perform a vacuuming operation.

[0130] Specifically, the third receiving portion 151 refers to a space capable of performing vacuuming and pressurizing operations P. The fixing surface 150a is a surface of the third receiving portion 151 disposed along the first direction F1. In some specific embodiments, the third receiving portion has a third cavity 151a, and the second through hole M2 communicates with the third cavity 151a. Further, a vacuum chuck can be provided on the fixing surface 150a to adsorb and fix the optical film 10 to be formed, reducing the displacement of the optical film 10 during the vacuuming operation. When the first receiving portion 111 and the third receiving portion 151 are sealed together, vacuuming operations are performed in the first receiving portion 111 and the third receiving portion 151 respectively to keep the air pressure in the two chambers balanced. This facilitates the subsequent pressurizing operation P of the third receiving portion 151 to make the optical film 10 to be formed adhere to the pressing surface 110a, thereby improving the forming efficiency of the optical film 10.

[0131] It is understood that the first receiving part 111, the second receiving part 121, and the third receiving part 151 are all provided with corresponding air inlets and / or air filling ports (not shown in the figure), and by configuring air pumps and / or pressurizing devices, corresponding vacuuming operations and / or pressurizing operations P can be realized respectively.

[0132] Based on the same inventive concept, this application also proposes a bonding method. Please refer to... Figure 9 and combined Figure 2 The method includes:

[0133] S91, The lens 20 is carried by the first carrier 120 along the first direction F1.

[0134] S92, the formed optical film 10 is carried along the first direction F1 by the pressing surface 110a of the pressing member 110; the pressing surface 110a is configured to be at least convex.

[0135] S93. Preheat the optical film 10 on the press-fit part 110.

[0136] S94. Control the first carrier 120 and the pressing member 110 to move relative to each other along the first direction F1 so that the optical film 10 is attached to the lens 20; the first carrier 120 and the pressing member 110 are arranged relative to each other along the first direction F1.

[0137] Along the first direction F1, the pressing component 110 has a pre-fitting position. The curvature of the pressing surface 110a is greater than the curvature of the mounting surface 20a of the lens 20. When the pressing component 110 is in the pre-fitting position, the middle region of the optical film 10 is in contact with the middle region of the lens 20.

[0138] It should be noted that the pre-bonding position refers to the relative contact position between the pressing surface 110a of the pressing component 110 and the mounting surface 20a of the lens 20. The central region of the optical film 10 can be a portion of the surface surrounding the optical axis of the optical film 10. The central region of the lens 20 can also be a portion of the surface surrounding the optical axis of the lens 20. These can be set according to actual conditions and are not limited here.

[0139] Specifically, the first carrier 120 is located at the bonding station, and the lens 20 is mounted on the carrier surface 120a of the first carrier 120. The carrier surface 120a can fix the lens 20 by vacuum adsorption. The pressing surface 110a of the pressing member 110 can also fix the formed optical film 10 by vacuum adsorption. The pressing member 110 and the first carrier 120 are arranged opposite to each other along the first direction F1. Further, the pressing member 110 and the first carrier 120 are controlled to move relative to each other along the first direction F1, so that the first receiving portion 111 of the pressing member 110 and the first carrier 120 are sealed together, and the pressing head 112 of the pressing member 110 is located in the first receiving portion 111. During the process of controlling the relative movement of the pressing member 110 and the first carrier 120 along the first direction F1, the optical film 10 located on the pressing surface 110a can be heated by the first heating member 130 until the middle area of ​​the optical film 10 contacts the middle area of ​​the lens 20, and then the heating can be stopped. This allows the optical film 10 to gradually adhere to the lens 20 from the middle region to the edge region, reducing the likelihood of air bubbles forming between the optical film 10 and the lens 20. Furthermore, the first heating element 130 maintains the heating of the optical film 10 until the optical film 10 and the lens 20 come into contact, thereby reducing the possibility of cooling deformation of the optical film 10. This improves the adhesion between the optical film 10 and the lens 20 and enhances the optical performance of the lens 20.

[0140] Please see Figure 10 In some embodiments, step S94, controlling the first carrier 120 and the pressing member 110 to move relative to each other along the first direction F1 so that the optical film 10 adheres to the lens 20, includes:

[0141] S101 After the optical film 10 contacts the middle region of the lens 20 in the middle region, the pressing member 110 releases the optical film 10.

[0142] S102, By applying pressure P towards the optical film 10 along the first direction F1, the edge region of the optical film 10 is made to adhere to the edge region of the lens 20.

[0143] Specifically, after the middle region of the optical film 10 contacts the middle region of the lens 20, the optical film 10 can be separated from the pressing surface 110a by releasing the vacuum through the adsorption hole Q. Then, by applying pressure P to the sealed first receiving part 111, the optical film 10 can be gradually bonded to the mounting surface 20a of the lens 20 from the middle region to the edge region, thereby improving the bonding efficiency.

[0144] Please see Figure 11 In some embodiments, before the controlled pressing member 110 and the second carrier member 150 move relative to each other along the first direction F1 in step S94 to form the optical film 10 to be formed, the method further includes:

[0145] S111. Check whether the optical film 10 and the lens 20 are aligned. If not, adjust the relative positions of the first carrier 120 and the pressing member 110 so that the optical film 10 and the lens 20 are aligned.

[0146] Specifically, the detection element 140 can be used to detect whether the optical film 10 and the lens 20 are aligned along the first direction F1. In some embodiments, the detection element 140 is configured as a camera. By taking a picture of the pressing surface 110a, the center point of the pressing surface 110a is fitted using multiple adsorption holes Q on the pressing surface 110a as feature points. Since the pressing surface 110a is a contoured surface of the optical film 10, the optical axis of the optical film 10 passes through the center point of the pressing surface. The detection element 140 is further used to detect the center point of the mounting surface 20a of the lens 20, and the alignment of the center points of the pressing surface 110a and the mounting surface 20a in the first direction F1 is calculated. If they are not aligned, the first support member 120 can be moved to correct the alignment of the optical film 10 and the lens 20, or the pressing member 110 can be moved to correct the alignment of the optical film 10 and the lens 20. In this way, it is possible to detect whether the optical film 10 and the lens 20 are aligned, which helps to improve the bonding accuracy between the optical film 10 and the lens 20.

[0147] It is understandable that after the optical film 10 and the lens 20 are aligned, the first carrier 120 and the pressing member 110 can be controlled to move relative to each other along the first direction F1, so that the first receiving part 111 and the first carrier 120 are sealed together. In this way, the operation process can be optimized, and it is convenient to apply pressure P to the optical film 10 to shape it.

[0148] Please see Figure 12 In some embodiments, before step S92, in which the formed optical film 10 is carried along the first direction F1 by the pressing surface 110a of the pressing member 110, the method further includes:

[0149] S121, The optical film 10 to be formed is carried by the second carrier 150.

[0150] S122, control the pressing member 110 and the second carrier member 150 to move relative to each other along the first direction F1 to form the optical film 10 to be formed.

[0151] S123. Control the formed optical film 10 to be fixed to the pressing surface 110a of the pressing part 110.

[0152] It should be noted that the second carrier 150 is located at the forming station. The pressing component 110 can reciprocate between the forming station and the bonding station to assist the optical film 10 in completing the forming and bonding operations. The optical film 10 to be formed is a planar thin film.

[0153] Specifically, the optical film 10 to be formed is placed on the second carrier 150. The pressing member 110 is moved to one side of the second carrier 150 along the first direction F1, and the pressing surface 110a is positioned opposite to the optical film 10 to be formed. The pressing member 110 and the second carrier 150 are controlled to move relative to each other along the first direction F1, sealing the connection between the first receiving portion 111 and the second carrier 150. The optical film 10 to be formed and the pressing head 112 are both located within the sealed first receiving portion 111, and the pressing surface 110a of the pressing head 112 is in contact with or near the optical film 10 to be formed. Further, the second carrier 150 applies pressure P to the optical film 10 along the first direction F1 toward the pressing surface 110a, pressing the optical film 10 to be formed onto the pressing surface 110a, thereby achieving the forming of the optical film 10. Furthermore, the formed optical film 10 can be fixed on the pressing surface 110a by vacuum adsorption. In this way, the pressing component 110 assists in the formation of the optical film 10, and then the pressing component 110 is used to transfer the formed optical film 10 to the bonding station, thereby maintaining the formed state of the optical film 10 as much as possible and preventing deformation.

[0154] Please see Figure 13In some embodiments, controlling the relative movement of the pressing member 110 and the second carrier member 150 along the first direction F1 in step S122 to form the optical film 10 to be formed includes:

[0155] S131. Apply pressure P to the optical film 10 along the first direction F1 toward the side of the pressing surface 110a so that the optical film 10 adheres to the pressing surface 110a.

[0156] Specifically, the second carrier 150 has a carrier surface 120a, and the optical film 10 to be formed is located on the carrier surface 120a. A pressure operation P is applied to the optical film 10 to be formed via the second through hole M2 on the carrier surface 120a, causing the optical film 10 to deform toward the pressing surface 110a of the pressing member 110. In this way, the optical film 10 can be uniformly pressed onto the contacting or adjacent pressing surfaces 110a, improving the forming effect of the optical film 10.

[0157] Please see Figure 14 In some embodiments, before the controlled pressing member 110 and the second carrier member 150 move relative to each other along the first direction F1 in step S122 to form the optical film 10 to be formed, the method further includes:

[0158] S141. The optical film 10 to be formed on the second carrier 150 is heated to soften the optical film 10.

[0159] Specifically, before pressing the optical film 10, the optical film 10 to be formed on the second carrier 150 can be heated by the second heating element 160 to soften it. This facilitates pressing the optical film 10 to be formed onto the pressing surface 110a.

[0160] Figures 15a to 15g This illustration shows a schematic diagram of the process from forming the optical film to attaching it to the lens in one embodiment of this application.

[0161] Please see Figure 15a First, the optical film 10 to be formed is softened by heating with the second heating element 160. Then, the optical film 10 is formed and cured by the pressing element 110 under pressure operation P, resulting in the following: Figure 15b The optical film 10 is shown. Before the optical film 10 is attached to the lens 20, as shown... Figure 15c As shown, the pressing member 110 is inspected using the detection member 140 to ensure that the optical film 10 on the pressing member 110 is aligned with the lens 20 on the first carrier member 120. Then, as shown... Figure 15d In the process shown, the first heating element 130 located on the pressure head 112 is used. Figure 15d(Not shown) The optical film 10 is heated, and simultaneously, the pressing member 110 and the first carrier member 120 are controlled to move relative to each other along the first direction F1, so that the middle region of the optical film 10 comes into contact with the middle region of the lens 20, as shown. Figure 15e As shown. Further, as... Figure 15f and Figure 15g As shown, the pressing component 110 is separated from the optical film 10, and a pressure operation P is performed on the optical film 10 along the first direction F1 so that the optical film 10 gradually adheres to the lens 20 from the middle region to the edge region.

[0162] Compared to related technologies, such as Figures 1a to 1f In the process described, the molding platen 40 is only used to form the optical film 10. The formed optical film 10 shrinks and deforms during preheating, resulting in significant tensile stress on the optical film 10 during subsequent bonding, and residual air bubbles between the optical film 10 and the lens 20. In this embodiment, the molding surface 110a of the pressing member 110 carries the formed optical film 10, and the first heating element 130 located on the pressing member 110 maintains the heating of the optical film 10. During heating, the optical film 10 is minimized from deformation until it is transferred and bonded to the lens 20. This reduces the significant stress and tension in the middle region of the optical film 10 during bonding, and allows the optical film 10 to gradually bond to the mounting surface 20a of the lens 20 from the center to the edge region. This reduces the formation of air bubbles between the optical film 10 and the lens 20, improves the bonding effect between the optical film 10 and the lens 20, and enhances the optical performance of the lens 20.

[0163] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0164] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A bonding device, characterized in that, include: A press-fit component having a press-fit surface that is at least partially protruding, the press-fit surface being used to carry an optical film along a first direction; The first support member is used to support the lens along the first direction; The lens has a mounting surface that curves toward the first support member on the side opposite to the first support member; and The first heating element is used to preheat the optical film; The first carrier and the pressing member are configured to move relative to each other along the first direction so that the optical film is attached to the mounting surface. Along the first direction, the pressing member has a pre-fitting position; the curvature of the pressing surface is greater than the curvature of the mounting surface, so that when the pressing member is in the pre-fitting position, the middle region of the optical film contacts the middle region of the lens; The pressing member includes a first receiving portion and a pressing head; the first receiving portion has a first opening and a first cavity communicating with the first opening; the pressing head is connected to the first receiving portion and has the pressing surface; wherein, the first receiving portion and the first bearing member are configured to be able to be sealed to each other along the first direction via the first opening, and the first receiving portion is configured to be able to pressurize the first cavity. The first carrier has a bearing surface for accommodating the lens; during the relative movement of the first receiving portion and the first carrier along the first direction, the first receiving portion can cover the bearing surface by means of the first opening, so that the first carrier and the first receiving portion are sealed together. The first carrier includes a second receiving portion, the second receiving portion having the bearing surface, the bearing surface having a first through hole; the second receiving portion is configured to perform a vacuuming operation and adsorb and fix the lens on the bearing surface by means of the first through hole; The pressing head is equipped with a corresponding guiding mechanism, which can drive the pressing head to reciprocate from inside the first receiving part to outside the first receiving part along the first direction; the pressing member also includes a connecting part, which is connected between the pressing head and the guiding mechanism, and the connecting part passes through the inner wall of the first receiving part along the first direction. The pressure head is provided with the first heating element. The pressure head includes a pressure plate and a connecting plate spaced apart along the first direction, and there is a gap between the pressure plate and the connecting plate. The pressure plate is provided with the pressing curved surface, and the connecting plate is used to connect the connecting part. The first heating element includes at least a heat-conducting plate and an electric heating film connected sequentially along the first direction, and the heat-conducting plate and the electric heating film are located within the gap. The heat-conducting plate is connected to the pressure plate, and the electric heating film is connected to the connecting plate.

2. The bonding device according to claim 1, characterized in that, The pressed curved surface is provided with adsorption holes; Wherein, the pressed curved surface can fix the optical film by means of the adsorption holes; and / or The pressed curved surface can release the optical film through the adsorption holes.

3. The bonding device according to claim 1, characterized in that, The pressure head is movably connected to the inner wall of the first receiving part along the first direction.

4. The bonding device according to any one of claims 1-3, characterized in that, The bonding device further includes a detection element; the detection element is configured to be located on the bonding path of the optical film and the lens, and is used to detect the relative position between the optical film and the lens; Wherein, at least one of the first carrier and the pressing member is capable of responding to the detection signal of the detection member to cause relative movement between the first carrier and the pressing member, so as to adjust the relative position of the first carrier and the pressing member, so that the optical film and the lens are in relative position.

5. The bonding device according to any one of claims 1-3, characterized in that, The bonding device is provided with a forming station and a bonding station; the first carrier is located at the bonding station. The bonding device further includes a second support member disposed at the forming station; the second support member is used to support the optical film to be formed; The pressing component is configured to move between the forming station and the bonding station; The pressing component is used to cooperate with the second carrier component in a relative movement along the first direction at the forming station to form the optical film to be formed, and to transfer the formed optical film to the bonding station to bond it to the lens of the first carrier component.

6. The bonding device according to claim 5, characterized in that, The bonding device further includes a second heating element, which is used to heat the optical film to be formed on the second carrier.

7. The bonding device according to claim 5, characterized in that, The pressing component includes a first receiving portion and a pressing head; the first receiving portion has a first opening and a first cavity communicating with the first opening; the pressing head is connected to the first receiving portion and has the pressing surface; The first receiving portion and the second carrier are configured to be able to be sealed to each other along the first direction via the first opening, and the second carrier applies pressure to the side of the optical film to be formed facing the pressing surface, thereby forming the optical film to be formed.

8. The bonding device according to claim 7, characterized in that, The second carrier has a fixing surface for supporting the optical film to be formed; the fixing surface has a second through hole; During the relative movement of the first receiving portion and the second supporting member along the first direction, the first receiving portion can cover the fixed surface by means of the first opening, so that the second supporting member and the first receiving portion are sealed together. The second carrier is configured to apply pressure to the side of the optical film to be formed facing the pressing surface via the second through hole.

9. The bonding device according to claim 8, characterized in that, The second carrier includes a third receiving portion; The fixing surface is located in the third receiving portion; when the first receiving portion covers the fixing surface, the first receiving portion and the third receiving portion are sealed together, and both the first receiving portion and the third receiving portion are configured to perform vacuuming operations.

10. A bonding method, characterized in that, The bonding device as described in any one of claims 1-9 comprises: The lens is carried by the first carrier along the first direction; The formed optical film is carried along the first direction by the pressing surface of the pressing component; the pressing surface is configured to be at least partially convex. The optical film on the pressed part is preheated; The first carrier and the pressing member are controlled to move relative to each other along a first direction so that the optical film is attached to the lens; the first carrier and the pressing member are arranged opposite to each other along the first direction; Wherein, along the first direction, the pressing member has a pre-fitting position; the curvature of the pressing surface is greater than the curvature of the mounting surface of the lens, and when the pressing member is in the pre-fitting position, the middle region of the optical film is in contact with the middle region of the lens.

11. The bonding method according to claim 10, characterized in that, The step of controlling the first carrier and the pressing member to move relative to each other along a first direction so that the optical film adheres to the lens includes: After the middle region of the optical film contacts the middle region of the lens, the pressing member is controlled to release the optical film; By applying pressure along a first direction toward the optical film, the edge region of the optical film is made to adhere to the edge region of the lens.

12. The bonding method according to claim 10, characterized in that, Before controlling the first carrier and the pressing member to move relative to each other along a first direction so that the optical film is attached to the lens, the method further includes: Detect whether the optical film and the lens are aligned; If not, adjust the relative positions of the first carrier and the pressing member so that the optical film and the lens are aligned.

13. The bonding method according to any one of claims 10-12, characterized in that, Before the pressed surface of the pressing member carries the formed optical film along the first direction, the process further includes: The optical film to be formed is carried by the second carrier; The pressing member and the second carrier member are controlled to move relative to each other along the first direction in order to form the optical film to be formed; The formed optical film is fixed to the pressing surface of the pressing component.

14. The bonding method according to claim 13, characterized in that, The control of the pressing member and the second carrier member to move relative to each other along the first direction to form the optical film to be formed includes: The optical film is pressurized along the first direction toward the side of the pressed surface to make the optical film adhere to the pressed surface.

15. The bonding method according to claim 13, characterized in that, Before controlling the relative movement of the pressing member and the second carrier member along the first direction to form the optical film to be formed, the method further includes: The optical film to be formed on the second carrier is heated to soften the optical film.

Images