Prism module and camera module
By filling colloid between the prism bracket and the matte surface of the prism body, the problem of high risk of breakage in mechanical testing of the prism and its bracket is solved, and the effect of improving the strength and passing rate of the prism module is achieved.
Patent Information
- Application Number
- CN202420305904.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-19
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-02-19
AI Technical Summary
In the prior art, the prism and its bracket have a high risk of breaking during mechanical testing, resulting in low product yield and high cost.
By filling colloids between the prism bracket and the matte surface of the prism body, the prism bracket and the matte surface are associated with the prism bracket using the adhesive force of the colloid, thereby increasing the strength of the prism module.
This greatly improves the pass rate of the prism module in mechanical testing, reduces the risk of breakage of the prism bracket and prism body, and reduces the scrap rate and production costs.
Smart Images
Figure CN222762324U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optics, and in particular to a prism module and a camera module. Background Art
[0002] As users' demand for telephoto shooting increases, periscope lenses come into being. Periscope lenses can achieve telephoto shooting by increasing the optical path based on a reflector or prism without increasing the thickness of electronic devices (such as mobile phones, tablets, etc.).
[0003] However, when mechanical tests are performed on the prism and its bracket, the risk of bracket breakage is high, which increases the risk of prism breakage, resulting in low product yield and high cost. Therefore, how to reduce the risk of bracket and prism breakage is an urgent problem to be solved. Utility Model Content
[0004] The embodiments of the present application solve the technical problem in the prior art that the bracket and the prism have a high risk of breakage during mechanical testing by providing a prism module and a camera module, thereby achieving the technical effect of increasing the strength of the bracket and the prism and reducing the risk of breakage of the bracket and the prism during mechanical testing.
[0005] In a first aspect, the present application provides a prism module, the prism module comprising:
[0006] a prism body, including a frosted surface;
[0007] A prism support for carrying a prism body;
[0008] The colloid is filled between the prism support and the frosted surface of the prism body.
[0009] Furthermore, the material of the prism bracket includes glass fiber.
[0010] Furthermore, a target metal piece is embedded in the prism bracket.
[0011] Furthermore, the target metal part is an integrally formed metal part, or the target metal part is a metal part combination composed of at least two metal parts.
[0012] Furthermore, the prism body is made of glass or plastic.
[0013] Furthermore, a glue blocking groove is provided on the surface of the prism bracket facing the frosted surface, and the colloid is placed in the glue blocking groove.
[0014] Furthermore, the viscosity of the colloid is 5000mPa.s-25000mPa.s.
[0015] Furthermore, the colloid is one of a heat-curable colloid and a UV-curable colloid.
[0016] Furthermore, the gap distance between the prism bracket and the frosted surface is 0.03mm-0.25mm.
[0017] In a second aspect, the present application provides a camera module, comprising a prism module as provided in the first aspect.
[0018] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
[0019] In this embodiment, by filling colloid between the prism bracket and the frosted surface of the prism body, the prism bracket and the frosted surface are linked together by relying on the adhesion of the colloid. When the prism module filled with the colloid is subjected to mechanical testing, not only the prism bracket itself can be relied upon to overcome the thrust, but also the colloid filled between the prism bracket and the frosted surface of the prism body and the prism body can be relied upon to overcome the thrust together, thereby greatly improving the strength of the prism module and improving the pass rate of the prism module in mechanical testing, thereby reducing the risk of breakage of the prism bracket and the prism body, reducing the scrap rate, and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0021] Figure 1 Schematic diagram of a camera module architecture (referred to as architecture A) in this embodiment;
[0022] Figure 2 Schematic diagram of another camera module architecture (referred to as architecture B) in this embodiment;
[0023] Figure 3 is a cross-sectional view of the framework A filled with colloid in this embodiment;
[0024] Figure 4 is an axial cross-sectional exploded view of the framework A filled with colloid in this embodiment;
[0025] Figure 5 This is a schematic diagram of the structure of the glue retaining groove in this embodiment;
[0026] Figure 6 is a cross-sectional top view of the target metal piece embedded in the prism bracket in this embodiment;
[0027] Figure 7 A top view of a target metal part of another shape;
[0028] Figure 8 for Figure 7 Axial view of .
[0029] Reference numerals:
[0030] 1-prism body, 2-prism bracket, 3-lens assembly, 31-first lens assembly, 32-second lens assembly, 4-photosensitive chip, 5-colloid, 6-target metal part, 7-frosted surface, 8-glue blocking groove. DETAILED DESCRIPTION
[0031] The embodiments of the present application solve the technical problem in the prior art that the bracket and the prism have a high risk of breakage during mechanical testing by providing a prism module and a camera module.
[0032] The technical solution of the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:
[0033] A prism module comprises: a prism body 1, comprising a frosted surface 7; a prism bracket 2 for supporting the prism body 1; and a colloid 5 filled between the prism bracket 2 and the frosted surface 7 of the prism body 1.
[0034] In this embodiment, the prism bracket 2 and the frosted surface 7 of the prism body 1 are connected together by filling the colloid 5 between the prism bracket 2 and the frosted surface 7, relying on the adhesive force of the colloid 5. When the prism module filled with the colloid 5 is subjected to mechanical testing, not only the prism bracket 2 itself can be relied upon to overcome the thrust, but also the colloid 5 filled between the prism bracket 2 and the frosted surface 7 of the prism body 1 and the prism body 1 can be relied upon to overcome the thrust together, thereby greatly improving the strength of the prism module and improving the pass rate of the prism module in mechanical testing, thereby reducing the risk of breakage of the prism bracket 2 and the prism body 1, reducing the scrap rate, and reducing the production cost.
[0035] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0036] First of all, the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0037] During the mechanical testing of the prism and its bracket, the bracket is not strong enough, resulting in a high risk of breakage, which in turn increases the risk of prism breakage, resulting in problems such as low product yield and high testing costs.
[0038] In order to solve the above problem, this embodiment provides a prism module, and the prism module includes:
[0039] The prism body 1 includes a frosted surface 7;
[0040] A prism support 2 for supporting the prism body 1;
[0041] The colloid 5 is filled between the prism support 2 and the frosted surface 7 of the prism body 1. The frosted surface 7 refers to the surface of the prism body 1 that is not related to the optical path.
[0042] Before describing the above prism module, this embodiment first provides two different camera module architectures, respectively: Figure 1 and Figure 2 As shown, Figure 1 The camera module architecture shown is denoted as architecture A. Figure 2 The camera module architecture shown is recorded as architecture B.
[0043] Regarding the structure A, the prism body 1 used is a trapezoidal prism, and the prism body 1 is placed in the prism bracket 2, and the prism body 1 and the prism bracket 2 match each other. The lens assembly 3 (including the driving parts such as the motor, Figure 1 The driving parts (such as the motor) and the photosensitive chip 4 are located on the same side of the prism body 1. Figure 1 As shown in the light path corresponding to the middle grey arrow, the light enters from the lens assembly 3, the light path turns in the prism body 1, and finally enters the photosensitive chip 4 to achieve telephoto imaging.
[0044] Regarding the structure B, the prism body 1 used is a triangular prism, and the prism body 1 is placed in the prism bracket 2, and the prism body 1 and the prism bracket 2 match each other. The structure B includes two lens assemblies 3 (including driving parts such as motors, Figure 2 The first lens assembly 31 is on the light-incoming side of the prism body 1, and the second lens assembly 32 is on the light-outgoing side of the prism body 1. Figure 2 As shown in the light path corresponding to the middle grey arrow, the light enters from the first lens assembly 31, the light path turns in the prism body 1, and then passes through the second lens assembly 32 and enters the photosensitive chip 4 to achieve telephoto imaging.
[0045] The prism module provided in this embodiment is applicable to any one of the camera module architectures of the aforementioned architecture A and architecture B. When the prism module provided in this embodiment is applied to architecture A (or architecture B), reference can be made to Figure 3 and Figure 4 ,in, Figure 3 is a cross-sectional view of the framework A filled with the colloid 5, Figure 4 It is an axial cross-sectional exploded view of the framework A filled with the colloid 5. It should be noted that, Figure 1 The cross-sectional view shown Figure 3 The cross-sectional planes shown are perpendicular to each other.
[0046] This embodiment only provides an exemplary description of the prism module provided in this embodiment based on architecture A.
[0047] A prism module provided in this embodiment includes: a prism body 1 , a prism bracket 2 for supporting the prism body 1 , and a colloid 5 filled between the prism bracket 2 and a frosted surface 7 of the prism body 1 .
[0048] In this embodiment, the prism bracket 2 and the frosted surface 7 of the prism body 1 are connected together by filling the colloid 5 between the prism bracket 2 and the frosted surface 7, relying on the adhesive force of the colloid 5. When the prism module filled with the colloid 5 is subjected to mechanical testing, not only the prism bracket 2 itself can be relied upon to overcome the thrust, but also the colloid 5 filled between the prism bracket 2 and the frosted surface 7 of the prism body 1 and the prism body 1 can be relied upon to overcome the thrust together, thereby greatly improving the strength of the prism module and improving the pass rate of the prism module in mechanical testing, thereby reducing the risk of breakage of the prism bracket 2 and the prism body 1, reducing the scrap rate, and reducing the production cost.
[0049] The material of the prism body 1 provided in this embodiment can be glass or plastic. Compared with glass, choosing plastic as the material of the prism body 1 can greatly reduce the weight of the prism body 1. The weight of a plastic prism with the same structure is 30%-40% of that of a glass prism. The reduction in the weight of the prism body 1 can further reduce the risk of prism breakage during mechanical testing and improve the yield rate. In addition, plastic prisms have the advantages of high mass production, short process, and low manufacturing cost. Therefore, choosing plastic to make prisms can improve the production efficiency of the prism module and further reduce the production cost of the prism module.
[0050] The viscosity of the colloid 5 filled between the prism bracket 2 and the frosted surface 7 of the prism body 1 is 5000mPa.s-25000mPa.s. The viscosity within this range is moderate, and the colloid 5 will not flow to other areas of the prism module that do not require bonding due to the viscosity being too low, nor will the colloid 5 have poor fluidity due to the viscosity being too high, thereby reducing the uniformity of the distribution of the colloid 5 between the prism bracket 2 and the frosted surface 7.
[0051] The colloid 5 is elastic, and its elastic range can be 500Mpa-1500Mpa. Within this elastic range, the colloid 5 can better alleviate the extrusion force between the prism bracket 2 and the prism body 1. On the one hand, it can provide a buffer for the extrusion between the prism bracket 2 and the prism body 1. On the other hand, it can also absorb part of the pressure or tension when the prism bracket 2 and the prism body 1 are subjected to external pressure or tension, thereby further improving the strength of the prism bracket 2 and the prism body 1.
[0052] The colloid 5 can be a heat-curable colloid, a UV-curable colloid, or a combination of heat-curable and UV-curable colloid. Figure 3 and Figure 4 As shown, the black area represents the colloid 5 part. Figure 3 For example, colloid 5 in Figure 3 The distribution in the up and down directions.
[0053] Normally, when Figure 3 When the span of the area to be filled with the colloid 5 in the vertical direction is large (for example, greater than 1mm), it means that the filling is deep, and a heat-curing colloid can be used. This type of colloid is cured by heating, and can achieve better curing of the colloid in the deeper area, ensuring that the colloid 5 can better improve the strength of the prism module. During the test, when the depth of the colloid 5 is greater than 2mm, more than 60 kilograms of force are required to push the prism body 1 out of the prism bracket 2. It can be seen that the colloid 5 can effectively improve the strength of the prism module.
[0054] when Figure 3 When the span of the area that needs to be filled with colloid 5 in the up and down direction is small (for example, less than 1mm), it means that the filling is shallow. UV curing colloid, heat curing colloid, or a combination of heat curing and UV curing colloid can be used. These three types of colloids can be cured well, which can ensure that colloid 5 can better improve the strength of the prism module.
[0055] The colloid 5 exists in the gap between the prism bracket 2 and the frosted surface 7 of the prism body 1, and the gap distance is 0.03mm-0.25mm. In actual operation, the size of the prism bracket 2 provided in this embodiment can be appropriately enlarged so that the gap between the prism bracket 2 and the frosted surface 7 of the prism body 1 is as large as possible within a reasonable range (i.e., 0.03mm-0.25mm). When the gap between the prism bracket 2 and the frosted surface 7 of the prism body 1 is larger, the more colloid 5 content can be filled. By increasing the amount of glue filling between the prism body 1 and the frosted surface 7, the strength of the prism body 1 and the prism bracket 2 can be further enhanced, and the risk of the prism bracket 2 breaking is further reduced, which further reduces the risk of the prism body 1 breaking, so the yield rate can be further improved and the testing cost can be reduced.
[0056] The surface of the prism bracket 2 facing the frosted surface 7 provided in this embodiment is provided with a glue blocking groove 8, and the glue blocking groove 8 can be an area delimited by providing a protrusion, and the colloid 5 is placed in the glue blocking groove 8, such as Figure 5 As shown, it is a schematic diagram of the structure of the glue blocking groove 8, and the shaded area around the glue blocking groove 8 is a convex block. The convex block separates the area on the surface of the prism bracket 2 that needs to be filled with the colloid 5 and the area that does not need to be filled with the colloid 5, forming the glue blocking groove 8. In actual operation, the colloid 5 can be directly injected into the glue blocking groove 8 to form the colloid 5 filled between the prism bracket 2 and the frosted surface 7 of the prism body 1. The glue blocking groove 8 can limit the distribution area of the colloid 5 and improve the appearance quality of the prism assembly. It should be noted that the larger the area of the glue blocking groove 8, the larger the area associated with the prism bracket 2 and the frosted surface 7, and the greater the bonding effect of the colloid 5. Therefore, the area of the glue blocking groove 8 can be appropriately expanded, that is, the area where the prism bracket 2 and the frosted surface 7 are connected through the colloid 5 can be appropriately expanded, which can further enhance the strength of the prism module.
[0057] The present embodiment can also use a special material to make the prism bracket 2, and the special material can be a material containing glass fiber. For example, when the prism bracket 2 is made of RTP299 material, the glass fiber and RTP299 can be fused into particles, and then processed into the prism bracket 2 by injection molding. The higher the content of glass fiber in the prism bracket 2, the higher the strength of the prism bracket 2 will be, but the cost will be higher. Therefore, in actual operation, the content of glass fiber in the prism bracket 2 can be determined according to the cost and strength requirements of the prism bracket 2. In addition, the prism bracket 2 can also be made of NTC306B-1 material, and glass fiber is fused into NTC306B-1.
[0058] Generally, the weight content of glass fiber in the prism bracket 2 can be 50%-90%. Using a material containing glass fiber to make the prism bracket 2 can further improve the strength of the prism bracket 2 itself, further reduce the risk of the prism bracket 2 breaking, and further reduce the risk of the prism body 1 breaking, further improve the yield rate and reduce the testing cost.
[0059] In this embodiment, the prism bracket 2 may adopt an insert molding architecture, that is, an insert molding architecture, and embed the target metal part 6 in the prism bracket 2 to further enhance the strength of the prism bracket 2. Generally, the prism bracket 2 is assembled from two separate parts, and the target metal part 6 can be embedded between the two separate parts.
[0060] The target metal part 6 can be an integrally formed metal part or a metal part combination consisting of at least two metal parts. On the basis of using the same metal and thickness, the integrally formed metal part has higher strength than the metal part combination. In actual operation, the integrally formed metal part and the metal part combination can be selected according to the strength requirements.
[0061] The target metal part 6 can be relatively evenly distributed in the prism bracket 2, thereby evenly improving the overall strength of the prism bracket 2. The material of the target metal part 6 can be comprehensively considered based on the degree of influence of the metal on the electronic device where the prism assembly is located and the cost of the metal material. For example, it can be nickel silver (material model C5191 and C7701R) or stainless steel with a thickness of >0.1mm. The larger the area ratio of the target metal part 6 to the prism bracket 2, the higher the strength of the prism bracket 2.
[0062] By embedding the target metal part 6 in the prism bracket 2, the strength of the prism bracket 2 itself can be improved, thereby reducing the risk of the prism bracket 2 breaking, thereby reducing the risk of the prism body 1 breaking, improving the yield rate and reducing the test cost. Figure 6 As shown, Figure 6 Schematic diagram of the top cross-sectional structure of the prism bracket 2 in this embodiment.
[0063] in addition, Figure 7 and Figure 8 Another shape of the target metal part 6 is shown. Figure 7 is a top view of the target metal part 6, Figure 8 for Figure 7 Axonometric view of the Figure 7 and Figure 8 It can be seen that the target metal piece 6 includes a plurality of strips of metal. In actual operation, the width of each strip of metal can be set to be greater than 0.2 mm, and the spacing between two adjacent strips of metal is required to be greater than 0.2 mm to avoid short circuits between them. Figure 8 It can be seen that a column is provided at the right end of each metal strip, and the column can be connected to a driving component such as a motor or a circuit board in the camera module, and then the automatic focusing of the lens can be realized by relying on the target metal component 6 to realize imaging.
[0064] The solutions of filling colloid 5, adding glass fiber and embedding metal parts provided in this embodiment can be combined with each other arbitrarily, and the combination method can be selected according to the actual situation. In a preferred case, the three solutions can be used together to maximize the strength of the prism module, thereby reducing the risk of fracture of the prism bracket 2, thereby reducing the risk of fracture of the prism body 1, improving the yield rate and reducing the testing cost.
[0065] Based on the same inventive concept, this embodiment also provides a camera module, including any one of the prism modules provided above. Such a camera module has a higher strength and can improve the ability of the camera module to cope with bumps during the test process or use. The architecture of the camera module can be referred to Figure 1 and Figure 2 .
[0066] Since the electronic device introduced in this embodiment is an electronic device used to implement the information processing method in the embodiment of the present application, based on the information processing method introduced in the embodiment of the present application, a person skilled in the art can understand the specific implementation of the electronic device of the present embodiment and its various variations, so how the electronic device implements the method in the embodiment of the present application is not described in detail here. As long as a person skilled in the art implements the electronic device used by the information processing method in the embodiment of the present application, it belongs to the scope of protection of this application.
[0067] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.
[0068] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. A prism module, characterized in that: The prism module comprises: a prism body, including a frosted surface; A prism support for carrying the prism body; A colloid filled between the prism support and the frosted surface of the prism body; The surface of the prism bracket facing the frosted surface is provided with a glue blocking groove, and the colloid is placed in the glue blocking groove.
2. A prism module as claimed in claim 1, characterized in that: The material of the prism bracket includes glass fiber.
3. A prism module as claimed in claim 1, characterized in that: The prism bracket is embedded with a target metal piece.
4. A prism module as claimed in claim 3, characterized in that: The target metal part is an integrally formed metal part, or the target metal part is a metal part combination consisting of at least two metal parts.
5. A prism module as claimed in claim 1, characterized in that: The prism body is made of glass or plastic.
6. A prism module as claimed in claim 1, characterized in that: The viscosity of the colloid is 5000mPa.s-25000mPa.s.
7. A prism module as claimed in claim 1, characterized in that: The colloid is one of a heat-curing colloid and a UV-curing colloid.
8. The prism module according to claim 1, characterized in that: The gap distance between the prism bracket and the frosted surface is 0.03mm-0.25mm.
9. A camera module, characterized in that: It comprises a prism module as described in any one of claims 1-8.