Lens module and processing tool thereof

Abstract

The utility model relates to a lens module and a processing tool thereof, and the lens module comprises a support which is provided with a containing cavity, a first window and a second window, the first window and the second window are communicated with the containing cavity, and the first window and the second window are respectively arranged at two opposite sides of the containing cavity; the optical assembly is in clearance connection with the interior of the accommodating cavity and is partially exposed out of the first window; the first adhesive layer and the second adhesive layer are arranged on the base plate, the first adhesive layer surrounds the outer periphery of the base plate, the second adhesive layer surrounds the inner side of the first adhesive layer, and the base plate is connected to the support through the first adhesive layer and the second adhesive layer and covers the second window. According to the technical scheme, the technical problems of low assembly yield and poor sealing effect of the lens module caused by the phenomena of convex rubber, holes and the like due to internal exhaust in the packaging process of the traditional lens module are effectively solved.

Description

Technical Field

[0001] The present application relates to the field of encapsulation technology, and in particular, to a lens module and a processing tool thereof. Background Art

[0002] Traditional lens modules generally include a lens holder, a lens group disposed at the front end of the lens holder, and a substrate disposed at the rear end of the lens holder. The substrate is bonded to the lens holder by an adhesive. However, due to the presence of gas inside the lens module, during the bonding process of the lens holder and the substrate, problems such as glue bulging and glue holes will occur due to the discharge of the aforementioned gas, affecting the assembly yield and sealing effect of the lens module.

[0003] In the related art, in order to discharge the gas inside the lens module in a timely manner, exhaust holes are generally provided on the lens holder, so that the gas inside the lens module escapes outward along the joint between the lens holder and the substrate and finally discharges from the exhaust holes. This gas discharge path will cause the internal gas to impact the glue layer between the lens holder and the substrate and form glue bulges and holes on the glue layer, resulting in a low assembly yield and poor sealing effect of the lens module. Summary of the Utility Model

[0004] The present application provides a lens module and a processing tool thereof to solve the technical problems that in the encapsulation process of traditional lens modules, phenomena such as glue bulging and holes occur due to internal exhaust, resulting in a low assembly yield and poor sealing effect of the lens module.

[0005] To this end, in a first aspect, an embodiment of the present application provides a lens module, which includes: a bracket having an accommodation chamber and a first window and a second window communicating with the accommodation chamber, the first window and the second window being respectively disposed on opposite sides of the accommodation chamber; an optical component connected to the accommodation chamber with a gap and partially exposed from the first window; a substrate, and a first glue layer and a second glue layer disposed on the substrate, the first glue layer surrounding the outer periphery of the substrate, the second glue layer surrounding the inner side of the first glue layer, and the substrate being connected to the bracket through the first glue layer and the second glue layer and covering the second window.

[0006] In a possible implementation manner, the first glue layer and the second glue layer enclose an annular chamber, and the first glue layer is 10 μm to 30 μm away from the edge of the substrate.

[0007] In a possible implementation manner, the second glue layer is provided with an exhaust notch, and the exhaust notch communicates the annular chamber and the inner space of the second glue layer.

[0008] In a possible implementation manner, in the axial direction of the bracket, the projected area of the optical component is received within the projected area of the second glue layer.

[0009] In a possible implementation, the gas in the annular chamber enters the inner space of the second adhesive layer through the exhaust notch, escapes outward from the connection gap between the optical component and the bracket, and finally exits from the first window.

[0010] In a possible implementation, the optical component includes a plurality of lenses, and the plurality of lenses are spaced apart along the axial direction of the bracket.

[0011] In a possible implementation, the height of the first adhesive layer is 180 μm to 270 μm; and / or,

[0012] The width of the first adhesive layer is 250 μm to 350 μm.

[0013] In a second aspect, an embodiment of the present application further provides a processing tool for the lens module as described above, which is characterized by including: a base; a clamping member movably disposed above the base; a dispensing member movably disposed above the base; and a control module electrically connected to the clamping member and the dispensing member. The control module is configured to control the dispensing member to dispense glue on the substrate placed on the base according to the trajectories of the first adhesive layer and the second adhesive layer of the lens module, and control the clamping member to clamp the bracket of the lens module and press the bracket onto the first adhesive layer and the second adhesive layer after alignment with the substrate.

[0014] In a possible implementation, it further includes a support and a curing member electrically connected to the control module. The support is spaced around the outer periphery of the base, and the curing member is connected to the support and is located between the base and the support.

[0015] In a possible implementation, it further includes a timer electrically connected to the control module. The control module is further configured to obtain the standing time between the glue pressing process and the glue curing process of the lens module through the timer, and control the curing member to start the curing operation after the standing time reaches the preset time.

[0016] According to the lens module and its processing tooling provided by the embodiments of the present application, the lens module includes: a bracket having a receiving chamber, a first window and a second window communicating with the receiving chamber, the first window and the second window being respectively disposed on opposite sides of the receiving chamber; an optical component, connected to the receiving chamber with a gap and partially exposed from the first window; a substrate, and a first adhesive layer and a second adhesive layer disposed on the substrate, the first adhesive layer surrounding the outer peripheral edge of the substrate, the second adhesive layer surrounding the inner side of the first adhesive layer, the substrate being connected to the bracket through the first adhesive layer and the second adhesive layer and covering the second window. Compared with the gas discharge path of the traditional lens module, which needs to open an exhaust hole on the bracket and utilize the gap between the bracket and the substrate to allow the escaping gas to pass through the glue layer between the two and finally discharge from the exhaust hole on the bracket, the technical solution of the present application uses the gap at the connection between the optical component and the bracket and the first window as the gas discharge path, effectively avoiding problems such as glue protrusions and holes caused by the escaping gas escaping through the glue layer, and improving the packaging yield of the lens module. Moreover, by providing the first adhesive layer and the second adhesive layer on the substrate, the connection tightness between the bracket and the substrate can be effectively increased; at the same time, the setting of the inner and outer double glue layers can also strengthen the sealing effect between the substrate and the bracket, improving the waterproof and dustproof protection of the lens module. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. To more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. One or more embodiments are illustrated by the pictures in the corresponding drawings. These illustrative descriptions do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the drawings in the figures do not constitute a proportional limitation.

[0018] Figure 1 It is an axial sectional view of the lens module provided by the embodiments of the present application;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the substrate of the lens module provided by the embodiments of the present application;

[0020] Figure 3 It is an assembly diagram of the lens module provided by the embodiments of the present application;

[0021] Figure 4 It is a structural schematic diagram of the processing tooling provided by the embodiments of the present application;

[0022] Figure 5 This is a schematic structural diagram of a clamping member of a processing tooling provided by an embodiment of the present application.

[0023] Explanation of reference numerals in the drawings:

[0024] 100, bracket; 101, first window; 102, second window;

[0025] 200, optical component; 210, lens;

[0026] 300, substrate;

[0027] 400, first adhesive layer; 401, annular chamber;

[0028] 500, second adhesive layer; 501, exhaust notch;

[0029] 10, base; 20, clamping member; 30, control module; 40, support; 50, curing member; 60, timer. Detailed implementation manners

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0031] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0032] For ease of description, spatial relative relationship terms may be used in the text to describe the relative positional relationship or movement of one element or feature shown in the figure with respect to another element or feature. These relative relationship terms are, for example, "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "over", "front", "rear", etc. Such spatial relative relationship terms are intended to include different orientations of the device during use or operation other than the orientations depicted in the figure. For example, if the device in the figure undergoes a position flip, attitude change, or change in motion state, then these directional indications will also change accordingly. For example, an element described as "below" or "beneath" other elements or features will subsequently be oriented as "above" or "over" other elements or features. Therefore, the exemplary term "below" can include both upper and lower orientations. The device may be oriented otherwise (rotated 90 degrees or in other directions), and the spatial relative relationship descriptors used in the text are interpreted accordingly.

[0033] See Figures 1 to 3 , an embodiment of the present application provides a lens module, which includes: a bracket 100 having an accommodation chamber and a first window 101 and a second window 102 communicating with the accommodation chamber, the first window 101 and the second window 102 being respectively disposed on opposite sides of the accommodation chamber; an optical component 200, connected to the accommodation chamber with a gap and partially exposed from the first window 101; a substrate 300, and a first adhesive layer 400 and a second adhesive layer 500 disposed on the substrate 300, the first adhesive layer 400 surrounding the outer periphery of the substrate 300, the second adhesive layer 500 surrounding the inner side of the first adhesive layer 400, and the substrate 300 being connected to the bracket 100 through the first adhesive layer 400 and the second adhesive layer 500 and covering the second window 102.

[0034] Compared with the gas discharge path of a traditional lens module that requires an exhaust hole to be opened on the bracket 100, and uses the gap between the bracket 100 and the substrate 300 to allow the escaping gas to pass through the glue layer between the two and finally discharge from the exhaust hole on the bracket 100, the technical solution of the present application uses the gap at the connection between the optical component 200 and the bracket 100 and the first window 101 as the gas discharge path, effectively avoiding problems such as glue protrusions and holes caused by the escaping gas escaping through the glue layer, and improving the packaging yield of the lens module. Moreover, by providing the first adhesive layer 400 and the second adhesive layer 500 on the substrate 300, the connection tightness between the bracket 100 and the substrate 300 can be effectively increased; at the same time, the setting of the inner and outer double glue layers can also enhance the sealing effect between the substrate 300 and the bracket 100, improving the waterproof and dustproof protection of the lens module.

[0035] Specifically, the lens module is configured as a combined component including at least a bracket 100, an optical component 200, a substrate 300, a first glue layer 400, and a second glue layer 500. The bracket 100 can be a nearly T-shaped cylindrical structure, and a clamping convex structure is provided on the inner wall of its accommodation chamber, which can clamp the optical component 200 to achieve a clearance connection between the optical component 200 and the bracket 100. The first window 101 on it is located on the front side and can expose part of the optical component 200 to realize the acquisition of external images. The second window 102 is located on the rear side, and the size of the second window 102 is larger than that of the first window 101, and the assembly of the optical component 200 can be realized from the side of the second window 102. The optical component 200 can be a lens group for capturing and transmitting external light. The substrate 300 can be a plate-like structure with an image sensor, which covers and encapsulates the second window 102 of the bracket 100. On the one hand, the light transmitted by the lens component 200 can be captured by the image sensor on it and converted into image information, and then transmitted out through the wiring on the substrate 300 to realize image imaging. On the other hand, the second window 102 of the lens component 200 can also be sealed by the substrate 300 to improve the structural reliability of the lens module. On the side of the substrate 300 facing the bracket 100, a first glue layer 400 and a second glue layer 500 are provided. The first glue layer 400 can be a nearly rectangular ring, which is arranged on the edge of the substrate 300 and is used to bond the edge position of the substrate 300 to a specified position on the bracket 100 to realize the firm connection between the edge position of the substrate 300 and the bracket 100. The second glue layer 500 can be a nearly rectangular ring, which is arranged at the middle position of the substrate 300 and is used to bond the middle position of the substrate 300 to a specified position on the bracket 100 to realize the firm connection between the middle position of the substrate 300 and the bracket 100. In this way, the double glue layer structure of the first glue layer 400 and the second glue layer 500 can strengthen the connection firmness and sealing performance between the bracket 100 and the substrate 300 on the side of the second window 102, improve the structural stability and reliability of the lens module, and strengthen the waterproof and dustproof protection inside the lens module. It can also enable the gas inside the lens module to escape outward from the connection gap between the optical component 200 and the bracket 100 and finally discharge from the first window 101, avoiding the need for the internal gas to escape through the second glue layer 500 and the first glue layer 400, greatly reducing the risk of glue bumps and holes in the first glue layer 400 and the second glue layer 500, and improving the packaging yield and quality of the lens module.

[0036] In one example, the lens module provided in this embodiment can be used in electronic devices with cameras such as mobile phones, iPads, readers, or smart watches, and its usage scenarios and applicable scopes are not limited here.

[0037] Such as Figure 1 and Figure 2As shown, in a possible implementation, the first adhesive layer 400 and the second adhesive layer 500 enclose an annular chamber 401, and the first adhesive layer 400 is spaced 10 μm to 30 μm from the edge of the substrate 300. In this example, the setting position of the first adhesive layer 400 and the substrate 300 is optimized, and the setting position of the first adhesive layer 400 is retracted inward so that it is between 10 μm and 30 μm from the edge of the substrate 300. In this way, on the one hand, when the gas in the annular chamber 401 escapes outward through the first adhesive layer 400, enough space for the escaping gas to push out the glue outward can be reserved through the retracted position of the first glue layer, so that the glue bulge caused by the escaping gas passing through the first adhesive layer 400 can be completely accommodated between the substrate 300 and the bracket 100, reducing the glue bulge phenomenon of the lens module and improving the encapsulation effect; on the other hand, the gas in the annular chamber 401 can also escape outward through the second adhesive layer 500 from the gap between the optical element and the bracket 100 and finally be discharged from the first window 101, reducing the glue bulge problem on the side of the first adhesive layer 400 and improving the overall aesthetics of the lens module. For example but not limited to, the first adhesive layer 400 is spaced 15 μm, 20 μm or 25 μm from the edge of the substrate 300.

[0038] As Figure 2 shown, in a possible implementation, the second adhesive layer 500 is provided with an exhaust notch 501, and the exhaust notch 501 communicates the annular chamber 401 and the inner space of the second adhesive layer 500. In this example, components such as a capacitive element or a sensor element can be arranged in the annular chamber 401 of the substrate 300. In this way, on the one hand, the air near the capacitive element and the air above the sensor element can enter the inner space of the second adhesive layer 500 through the exhaust notch 501 and finally be discharged from the gas escape paths of the gap between the optical element and the bracket 100 and the first window 101, which can effectively reduce the risk of glue bulge and holes caused by the gas in the annular chamber 401 escaping outward through the first adhesive layer 400 and improve the encapsulation yield of the lens module. On the other hand, when the capacitive element and the sensor element generate heat during operation, the surrounding air expands, and the expanded gas can enter the inner space of the second adhesive layer 500 through the exhaust notch 501 and finally be discharged from the gas escape paths of the gap between the optical element and the bracket 100 and the first window 101, reducing the risk of glue cracking and other risks during the operation and improving the operation safety and reliability of the lens module.

[0039] As Figure 1As shown, in a possible implementation, in the axial direction of the bracket 100, the projection area of the optical component 200 is contained within the projection area of the second adhesive layer 500. In this example, the second adhesive layer 500 is dispersed on the outer periphery of the optical component 200. On the one hand, the weight of the optical component 200 and the middle part of the bracket 100 can be dispersed to the second adhesive layer 500 and the first adhesive layer 400. During the adhesive lamination process, the pressing force on the second adhesive layer 500 and the first adhesive layer 400 can be made more uniform, thereby improving the adhesive lamination effect, improving the connection stability and reliability between the bracket 100 and the substrate 300, and improving the sealing effect between the two; on the other hand, it can provide a gas discharge environment for the gas in the inner space of the second adhesive layer 500 to escape from the connection gap between the optical component 200 and the bracket 100 and finally be discharged from the first window 101, thereby reducing the problems of adhesive convexity and holes. The lens module provided in this example has stronger structural stability and higher reliability.

[0040] like Figure 1 As shown, the black solid line with an arrow is the gas escape path. In a possible implementation, the gas in the annular chamber 401 enters the inner space of the second adhesive layer 500 through the exhaust notch 501, escapes outward from the connection gap between the optical component 200 and the bracket 100, and finally is discharged from the first window 101. This example protects a gas escape path. Specifically, the gas inside the lens module gathers inward from its periphery through the exhaust notch 501 on the side of the second window 102, and then flows along the axial direction of the bracket 100 from the connection gap between the optical component 200 and the bracket 100 to the direction close to the first window 101, and finally is discharged from the first window 101. This example uses the gap in the mechanical connection as the key node of the gas escape path in the second half, so that the inner space of the second adhesive layer 500 can be connected with the first window 101; at the same time, an exhaust notch 501 is opened on the inner second adhesive layer 500 as the key node of the gas escape path in the first half, so that the annular chamber 401 can be connected with the inner space of the second adhesive layer 500. In this way, the gas inside the lens module can be exhausted and exhausted, improving the packaging quality of the lens module; and the process of opening the exhaust hole on the bracket 100 of the lens module is simplified, thereby improving the processing efficiency.

[0041] like Figure 1As shown, in a possible implementation, the optical component 200 includes a plurality of lenses 210, and the plurality of lenses 210 are spaced apart along the axial direction of the bracket 100. In this example, the optical component 200 is configured as a plurality of lenses 210, and each lens 210 is snap-fitted to the inner wall of the accommodation chamber of the bracket 100. Adjacent two lenses 210 are spaced apart by a set distance according to design requirements to improve the quality of the acquired image. There is a connection gap between the periphery of each lens 210 and the inner wall of the bracket 100, and the connection gap allows gas to pass through. In this way, the gas between the second adhesive layer 500 and the bottommost lens 210 can sequentially escape outward through the gaps between each lens 210 and the inner wall of the bracket 100, and finally be discharged from the first window 101.

[0042] As Figure 2 shown, in a possible implementation, the height of the first adhesive layer 400 is 180μm - 270μm. Such a setting can ensure the connection and sealing between the bracket 100 and the substrate 300, ensuring the sealing connection and connection reliability between the two; at the same time, it can also cover the pressed and deformed parts of the substrate 300 and the bracket 100, further improving the sealing effect. For example but not limited to, the height of the first adhesive layer 400 is set to 190μm, 200μm, 210μm, 220μm, 230μm, 240μm, 250μm or 260μm.

[0043] As Figure 2 shown, in a possible implementation, the width of the first adhesive layer 400 is 250μm - 350μm. Such a setting can ensure the adhesion degree between the bracket 100 and the substrate 300, improve the bonding effect between the two, and thus improve the sealing effect of the lens module. For example but not limited to, the width of the first adhesive layer 400 is 260μm, 270μm, 280μm, 290μm, 300μm, 310μm, 320μm, 330μm or 340μm.

[0044] In addition, as Figure 4 and Figure 5 shown, an embodiment of the present application further provides a processing tool for the lens module as described above, which is characterized in that it includes: a base 10; a clamping member 20 movably disposed above the base 10; a dispensing member (not shown in the figure) movably disposed above the base 10; and a control module 30 electrically connected to the clamping member 20 and the dispensing member. The control module 30 is configured to control the dispensing member to dispense glue on the substrate 300 placed on the base 10 according to the trajectories of the first adhesive layer 400 and the second adhesive layer 500 of the lens module, and control the clamping member 20 to clamp the bracket 100 of the lens module and align it with the substrate 300, and then press the bracket 100 onto the first adhesive layer 400 and the second adhesive layer 500.

[0045] In this embodiment, a processing tool for the aforementioned lens module is provided. The processing tool is configured to include at least a combined component of a base 10, a clamping member 20, a dispensing member, and a control module 30. The base 10 is used to support the substrate 300 of the lens module; the clamping member 20 can be a mechanical jaw, a vacuum adsorption plate, a robot arm, etc., and is used to clamp the bracket 100 of the lens module and move it to a specified position above the substrate 300; the dispensing member can be a dispensing machine and is used to perform a dispensing operation on one side of the substrate 300 facing the bracket 100. The control module 30 can be a chip or a software program, and it can be electrically connected to the clamping member 20 and the dispensing member to control the operations of the clamping member 20 and the dispensing member respectively. For example, it can first control the dispensing member to perform dispensing along the trajectories of the first adhesive layer 400 and the second adhesive layer 500 on the substrate 300. After removing the dispensing member, it then controls the clamping member 20 to clamp the bracket 100 above the substrate 300 for alignment and place it on the substrate 300, and remove the dispensing member, so as to use the self-gravity of the bracket 100 to press the first adhesive layer 400 and the second adhesive layer 500, realizing the adhesive pressing process of the lens module. The processing tool provided in this example has a high degree of automation, and seamless connection can be achieved between each process, with high processing efficiency.

[0046] Moreover, for the specific structure of the lens module, refer to the above embodiment. Since the processing tool of this example adopts all the technical solutions of the above-mentioned all embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0047] As Figure 4 shown, in a possible implementation manner, it further includes a support 40 and a curing member 50 electrically connected to the control module 30. The support 40 is disposed at intervals around the outer periphery of the base 10, and the curing member 50 is connected to the support 40 and is located between the base 10 and the support 40.

[0048] In this embodiment, the specific configuration of the processing tooling is further optimized. Specifically, the processing tooling is configured as a combined component including at least a base 10, a clamping member 20, a dispensing member, a control module 30, a support 40, and a curing member 50. The support 40 can be an annular frame with an annular structure at its top. It is arranged above the base 10 and surrounds the periphery of the base 10. Multiple feet are provided at its bottom for supporting the top ring plate. The curing member 50 can be an ultraviolet curing lamp, which can be connected to the top ring plate of the support 40 through structures such as clamping jaws. Its light-emitting end extends towards the base 10 and is used to irradiate the lens module to be cured placed on the base 10. The control module 30 is electrically connected to the curing member 50 and can control the opening and closing of the curing member 50. For example, when it is necessary to cure the first adhesive layer 400 and the second adhesive layer 500 between the bracket 100 and the substrate 300, the control module 30 controls the curing member 50 to turn on to irradiate ultraviolet light to the lens module. After the curing is completed, the control module 30 controls the curing member 50 to turn off to stop irradiating ultraviolet light to the lens module.

[0049] As Figure 4 shown, in a possible implementation manner, it further includes a timer 60 electrically connected to the control module 30. The control module 30 is further configured to obtain the standing time between the adhesive pressing process and the adhesive curing process of the lens module through the timer 60, and control the curing member 50 to start the curing operation after the standing time reaches the preset time.

[0050] In this embodiment, the specific configuration of the processing tooling is further optimized. Specifically, the processing tooling is configured as a combined component including at least a base 10, a clamping member 20, a dispensing member, a control module 30, a support 40, a curing member 50, and a timer 60. The timer 60 can be an electronic device for timing such as a mobile phone or a clock. The control module 30 is in signal connection with the timer 60. When the bracket 100 is placed on the substrate 300, the control module 30 controls the timer 60 to start timing. After the count on the timer 60 reaches at least 400 ms, the control module 30 controls the curing member 50 to turn on, so that the lens module enters the adhesive curing process. In this example, the adhesive pressing process of the lens module is controlled to be at least 400 ms to reserve enough escape time for the gas inside the lens module, discharge the gas inside the lens module as much as possible, avoid the gas discharging from the first adhesive layer 400, and reduce the porosity and glue convexity rate. At the same time, it can give enough healing time to the holes or glue convexities caused by the gas discharged from the first adhesive layer 400, and further reduce the porosity and glue convexity rate.

[0051] In this embodiment group, hole and glue convexity tests are carried out on the encapsulated lens modules under different standing times, and the results shown in Table 1 are obtained.

[0052] Table 1 Performance test of lens module encapsulation under different standing times

[0053] Example group Time / ms Porosity / % Convex glue rate / % Example 1 0 100 100 Example 2 100 55 48 Example 3 200 40 25 Example 4 300 12 8 Example 5 400 0 2 Example 6 500 0 1

[0054] It can be seen that by controlling the adhesive pressing process of the lens module to at least 400 ms, the porosity at the adhesive of the lens module can be reduced to 0, and the protrusion rate at the adhesive can be reduced to less than 0.02%. This significantly improves the bonding effect and sealing effect of the lens module, enhances the bonding tightness and reliability of the lens module, and makes the performance of the lens module better.

[0055] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. Unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless the order of performance is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0056] Although the terms first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly indicates otherwise, terms such as "first", "second", and other numerical terms do not imply an order or sequence when used herein. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the example embodiments.

[0057] The above description is only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A lens module, characterized in that, Comprising: A bracket (100) having a receiving chamber, a first window (101) and a second window (102) communicating with the receiving chamber, the first window (101) and the second window (102) being respectively disposed on opposite sides of the receiving chamber; An optical component (200) connected in the receiving chamber with a gap and partially exposed from the first window (101); A substrate (300) and a first adhesive layer (400) and a second adhesive layer (500) disposed on the substrate (300), the first adhesive layer (400) surrounding the outer periphery of the substrate (300), the second adhesive layer (500) surrounding the inner side of the first adhesive layer (400), and the substrate (300) being connected to the bracket (100) through the first adhesive layer (400) and the second adhesive layer (500) and covering the second window (102).

2. The lens module according to claim 1, wherein, The first adhesive layer (400) and the second adhesive layer (500) enclose an annular chamber (401), and the first adhesive layer (400) is spaced 10 μm to 30 μm from the edge of the substrate (300).

3. The lens module according to claim 2, characterized in that, An exhaust notch (501) is provided on the second adhesive layer (500), and the exhaust notch (501) communicates the annular chamber (401) with the inner space of the second adhesive layer (500).

4. The lens module according to claim 3, wherein In the axial direction of the bracket (100), the projected area of the optical component (200) is received within the projected area of the second adhesive layer (500).

5. The lens module according to claim 3, wherein The gas in the annular chamber (401) enters the inner space of the second adhesive layer (500) through the exhaust notch (501), escapes outward from the connection gap between the optical component (200) and the bracket (100), and finally discharges from the first window (101).

6. The lens module according to claim 1, wherein The optical component (200) includes a plurality of lenses (210), and the plurality of lenses (210) are spaced apart along the axial direction of the bracket (100).

7. The lens module according to claim 1, wherein The height of the first adhesive layer (400) is 180 μm to 270 μm; and / or, The width of the first adhesive layer (400) is 250 μm to 350 μm.

8. A processing tooling for a lens module according to any one of claims 1 to 7, characterized in that, Comprising: A base (10); A clamping member (20) movably disposed above the base (10); A dispensing member, movably disposed above the base (10); And A control module (30) electrically connected to the clamping member (20) and the dispensing member, the control module (30) being configured to control the dispensing member to dispense glue on the substrate (300) placed on the base (10) according to the trajectories of the first adhesive layer (400) and the second adhesive layer (500) of the lens module, and to control the clamping member (20) to clamp the bracket (100) of the lens module and press the bracket (100) onto the first adhesive layer (400) and the second adhesive layer (500) after alignment with the substrate (300).

9. The processing tooling according to claim 8, wherein It further includes a support (40) and a curing member (50) electrically connected to the control module (30). The support (40) is disposed at intervals around the outer peripheral edge of the base (10), and the curing member (50) is connected to the support (40) and is located between the base (10) and the support (40).

10. The processing tooling according to claim 9, wherein, It further includes a timer (60) electrically connected to the control module (30). The control module (30) is further configured to obtain the standing time between the adhesive pressing process and the adhesive curing process of the lens module through the timer (60), and control the curing member (50) to start the curing operation after the standing time reaches a preset time.

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