Camera module for improving imaging effect
By introducing a movable window module into the camera module, the window size can be adjusted in real time to correct the positional deviation of the image sensor, thus solving the problem of stray light when the light-blocking size is fixed, reducing manufacturing costs and improving imaging effect and product competitiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TRULY OPTO ELECTRONICS
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-14
Smart Images
Figure CN224503425U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of camera technology, and more specifically, to a camera module for improving imaging performance. Background Technology
[0002] Currently, camera modules are crucial electronic devices for image capture. Simply put, they are devices that convert the light signals of an object into digital signals that can be read and stored. They are mainly composed of components such as optical lenses, image sensors, drive motors, bases, IR filters, and circuit boards.
[0003] When an optical lens focuses light onto an image sensor, the IR filter filters out unwanted light. However, after the light enters the module, it still illuminates other reflective surfaces, such as bonding wires or components. Currently, the conventional method is to apply light-shielding ink to the IR filter to control the window size. However, due to tolerances and other errors in the ink screen printing process of the IR filter, there are also certain tolerance errors when mounting the base assembly and the image sensor. To avoid these errors, the existing solution is usually to increase the screen printing size on one side after simulating the optical path. However, this still easily leads to stray light problems. With the increasing number of high-pixel modules, large-sensor, and ultra-high-pixel image sensors, the light-shielding size is becoming increasingly stringent. Relying on a fixed light-shielding size solution requires multiple verifications when stray light problems occur, which is time-consuming and labor-intensive, increases the manufacturing cost of the product, and reduces the product's competitiveness. Utility Model Content
[0004] The technical problem to be solved by this utility model is how to solve the stray light problem with a better structure, improve the efficiency of correcting the light-shielding size, reduce the manufacturing cost of the product, and improve the competitiveness of the product.
[0005] The technical problem to be solved by this utility model is achieved through the following technical solution:
[0006] To address the aforementioned technical problems, this utility model provides a camera module for improving imaging performance, comprising a circuit board, an image sensor, a base, a movable window module, an IR filter, and an optical lens. The image sensor is disposed on the upper surface of the circuit board; the base is disposed on the circuit board, and an opening is provided in the middle of the base; the movable window module is fixed to the lower surface of the base located at the opening and is positioned above the image sensor, and the movable window module is electrically connected to the circuit board; the IR filter is disposed on the upper surface of the base located at the opening and is positioned above the movable window module; the optical lens is disposed on the base and is positioned above the IR filter.
[0007] In a preferred embodiment of the camera module for improving imaging effect provided by this utility model, components are provided on the upper surface of the circuit board.
[0008] In a preferred embodiment of the camera module for improving imaging effect provided by this utility model, the components include resistors.
[0009] In a preferred embodiment of the camera module for improving imaging effect provided by this utility model, the circuit board and the image sensor are electrically connected by bonding gold wires.
[0010] As a preferred embodiment of the camera module for improving imaging effect provided by this utility model, the base is provided with metal pins, one end of which is electrically connected to the movable window module, and the other end of which is electrically connected to the circuit board.
[0011] In a preferred embodiment of the camera module for improving imaging effect provided by this utility model, the IR filter is not provided with light-blocking ink.
[0012] In a preferred embodiment of the camera module for improving imaging effect provided by this utility model, one end of the circuit board is connected to an FPC, and the other end of the FPC is connected to a PCB board.
[0013] As a preferred embodiment of the camera module for improving imaging effect provided by this utility model, a reinforcing plate is provided on the PCB board.
[0014] In a preferred embodiment of the camera module for improving imaging effect provided by this utility model, the edges of the connection between the FPC and the circuit board and the PCB are provided with rounded corners.
[0015] As a preferred embodiment of the camera module for improving imaging effect provided by this utility model, the base located at the opening is provided with an internal thread, the optical lens is provided with an external thread, and the optical lens is fixed to the internal thread of the base by the external thread.
[0016] This utility model has the following beneficial effects:
[0017] Because a movable window module is set above the image sensor, that is, an adjustable piezoelectric motor module is added inside the camera module, the movable window module can freely adjust the window size. There is no need to set light-blocking ink on the IR filter, thus avoiding the problem of stray light caused by reserving too much window size. The movable window module can obtain the preliminary size through optical path simulation or directly set the parameters on the machine. After the module is powered on, the movable window module is adjusted in real time to the window size without dark corners and stray light according to the photosensitive area of the image sensor. The window size will not change after the movable window module is powered off. This means that it can be adjusted in real time on the equipment based on the edge size of the photosensitive area of the image sensor, thereby compensating for the positional deviation when the image sensor is mounted. At the same time, since the IR filter no longer needs to be equipped with light-shielding ink, it can improve the misalignment problem of the base assembly caused by the mounting of the IR filter, avoid dark corners or stray light. The image sensor receives light filtered by the IR filter. The light filtered by the IR filter reduces excess reflected light and improves the imaging effect. It solves the stray light problem with a more optimized structure, improves the efficiency of correcting the light-shielding size, reduces the manufacturing cost of the product, and enhances the competitiveness of the product. Attached Figure Description
[0018] To more clearly illustrate the solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 This utility model provides a structural schematic diagram of a camera module for improving imaging performance.
[0020] Figure 2 for Figure 1 A schematic diagram of its decomposed structure.
[0021] Figure 3 for Figure 1 A sectional view.
[0022] Figure 4 This is a structural schematic diagram of the movable window module.
[0023] Figure 5 for Figure 4 Side view.
[0024] Figure 6 for Figure 5 Enlarged view of point A in the middle.
[0025] Explanation of icon numbers:
[0026] 1. Circuit board; 2. Image sensor; 3. Base; 4. Movable window module; 5. IR filter; 6. Optical lens; 7. Metal pins; 8. FPC; 9. PCB board; 10. Connector;
[0027] 41. Piezoelectric stack; 42. Moving part; 43. Spherical part. Detailed Implementation
[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.
[0030] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0031] This utility model provides a camera module for improving imaging effect, which includes a circuit board, an image sensor, a base, a movable window module, an IR filter, and an optical lens. The image sensor is disposed on the upper surface of the circuit board; the base is disposed on the circuit board, and an opening is provided in the middle of the base; the movable window module is fixed to the lower surface of the base located at the opening and is located above the image sensor, and the movable window module is electrically connected to the circuit board; the IR filter is disposed on the upper surface of the base located at the opening and is located above the movable window module; the optical lens is disposed on the base and is located above the IR filter.
[0032] Because a movable window module is set above the image sensor, that is, an adjustable piezoelectric motor module is added inside the camera module, the movable window module can freely adjust the window size. There is no need to set light-blocking ink on the IR filter, thus avoiding the problem of stray light caused by reserving too much window size. The movable window module can obtain the preliminary size through optical path simulation or directly set the parameters on the machine. After the module is powered on, the movable window module is adjusted in real time to the window size without dark corners and stray light according to the photosensitive area of the image sensor. The window size will not change after the movable window module is powered off. This means that it can be adjusted in real time on the equipment based on the edge size of the photosensitive area of the image sensor, thereby compensating for the positional deviation when the image sensor is mounted. At the same time, since the IR filter no longer needs to be equipped with light-shielding ink, it can improve the misalignment problem of the base assembly caused by the mounting of the IR filter, avoid dark corners or stray light. The image sensor receives light filtered by the IR filter. The light filtered by the IR filter reduces excess reflected light and improves the imaging effect. It solves the stray light problem with a more optimized structure, improves the efficiency of correcting the light-shielding size, reduces the manufacturing cost of the product, and enhances the competitiveness of the product.
[0033] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. The present invention will be described in detail below with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0034] Example 1, please refer to Figures 1 to 3This utility model provides a camera module for improving imaging effect, which includes a circuit board 1, an image sensor 2, a base 3, a movable window module 4, an IR filter 5, and an optical lens 6. The image sensor 2 is disposed on the upper surface of the circuit board 1; the base 3 is disposed on the circuit board 1, and an opening is provided in the middle of the base 3; the movable window module 4 is fixed to the lower surface of the base 3 located at the opening and is located above the image sensor 2, and the movable window module 4 is electrically connected to the circuit board 1; the IR filter 5 is disposed on the upper surface of the base 3 located at the opening and is located above the movable window module 4; the optical lens 6 is disposed on the base 3 and is located above the IR filter 5. Because a movable window module 4 is provided above the image sensor 2, that is, an adjustable piezoelectric motor module is added inside the camera module, the movable window module 4 can freely adjust the window size. There is no need to set light-blocking ink on the IR filter 5, thus avoiding the problem of stray light caused by reserving too much window size. The movable window module 4 can obtain the preliminary size through optical path simulation or directly set the parameters on the machine. After the module is powered on, the movable window module 4 is adjusted in real time to the window size without dark corners and stray light according to the photosensitive area of the image sensor 2. The window size will not change after the movable window module 4 is powered off. This means that it can be adjusted in real time on the equipment according to the edge size of the photosensitive area of the image sensor 2, thereby compensating for the positional deviation when the image sensor 2 is mounted. At the same time, since the IR filter 5 no longer needs to be set with light-shielding ink, it can improve the offset problem of the base 3 component due to the mounting of the IR filter 5, avoid dark corners or stray light. The image sensor 2 receives the light filtered by the IR filter 5. The light filtered by the IR filter 5 reduces excess reflected light and improves the imaging effect. It solves the stray light problem with a more optimized structure, improves the efficiency of correcting the light-shielding size, reduces the manufacturing cost of the product, and improves the competitiveness of the product.
[0035] Furthermore, components, including resistors, are disposed on the upper surface of circuit board 1.
[0036] Furthermore, circuit board 1 and image sensor 2 are electrically connected by bonding gold wires.
[0037] Example 2, please refer to Figures 1 to 3 As a further optimization of Embodiment 1, in this embodiment, the base 3 is provided with metal pins 7. One end of the metal pins 7 is electrically connected to the movable window module 4, and the other end of the metal pins 7 is electrically connected to the circuit board 1. In this embodiment, the metal pins 7 on the base 3 and the metal pins 7 of the movable window module 4 are connected by ACF adhesive. In other embodiments, the movable window module 4 and the circuit board 1 can also be directly electrically connected.
[0038] Furthermore, no light-shielding ink is provided on the IR filter 5.
[0039] Furthermore, one end of circuit board 1 is connected to FPC8, and the other end of FPC8 is connected to PCB board 9.
[0040] Furthermore, a reinforcing plate is provided on the lower surface of the PCB board 9 to improve the strength of the PCB board 9, and a connector 10 is provided on the upper surface of the PCB board 9.
[0041] Furthermore, the edges at the connection points between the FPC8 and the circuit board 1 and the PCB board 9 are rounded to prevent stress concentration at these points and thus prevent damage from stress concentration.
[0042] Furthermore, the base 3 located at the opening is provided with an internal thread, and the optical lens 6 is provided with an external thread. The optical lens 6 is fixed to the internal thread of the base 3 through the external thread, and adhesive is applied between the optical lens 6 and the base 3 to achieve the fixation of the optical lens 6 and the base 3.
[0043] Example 3, please refer to Figures 4 to 6 The movable window module 4 comprises multiple stick-slip piezoelectric motors. Each stick-slip piezoelectric motor includes a piezoelectric stack 41 fixed to one side, a moving part 42, a spherical part 43 having a contact point with the moving part 42, and a bearing. The piezoelectric stack 41 is formed by stacking multiple piezoelectric materials together to generate greater displacement and force. In this embodiment, the contact point is formed by the contact point between the spherical part 43 and the moving part 42. During the "viscous phase," by slowly increasing the voltage, the piezoelectric material of the piezoelectric stack 41 slowly elongates. Due to the friction between the contact point of the spherical part 43 and the moving part 42, the moving part 42 moves slowly together with the contact point. Then, by rapidly decreasing the voltage, the piezoelectric stack 41 quickly retracts. The moving part 42 remains stationary due to inertia, while the spherical part 43 and its contact point slide back to their original position. By repeating the above two steps, macroscopic movement can be achieved.
[0044] In this utility model, unless otherwise explicitly 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, an electrical connection, or a connection that allows communication between them; 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 explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0045] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.
Claims
1. A camera module for improving imaging performance, characterized in that, It includes: Circuit board; An image sensor is disposed on the upper surface of the circuit board; A base is disposed on the circuit board, and an opening is provided in the middle of the base; A movable window module is fixed to the lower surface of the base located at the opening and above the image sensor; the movable window module is electrically connected to the circuit board. An IR filter is disposed on the upper surface of the base located at the opening and above the movable window module; An optical lens is mounted on the base and positioned above the IR filter.
2. The camera module for improving imaging effect according to claim 1, characterized in that, The upper surface of the circuit board is provided with components.
3. The camera module for improving imaging effect according to claim 2, characterized in that, The components include resistors.
4. The camera module for improving imaging effect according to claim 1, characterized in that, The circuit board and the image sensor are electrically connected by bonding gold wires.
5. The camera module for improving imaging effect according to claim 1, characterized in that, The base is provided with metal pins, one end of which is electrically connected to the movable window module, and the other end of which is electrically connected to the circuit board.
6. The camera module for improving imaging effect according to claim 1, characterized in that, The IR filter is not coated with light-blocking ink.
7. The camera module for improving imaging effect according to claim 1, characterized in that, One end of the circuit board is connected to an FPC, and the other end of the FPC is connected to a PCB board.
8. The camera module for improving imaging effect according to claim 7, characterized in that, A reinforcing plate is provided on the PCB board.
9. The camera module for improving imaging effect according to claim 7, characterized in that, The edges at the connection points between the FPC and the circuit board and the PCB are rounded.
10. The camera module for improving imaging effect according to claim 1, characterized in that, The base located at the opening is provided with an internal thread, and the optical lens is provided with an external thread. The optical lens is fixed to the internal thread of the base by the external thread.