Camera module optical performance detection device

Abstract

The utility model provides a camera module optical performance detection device which comprises a support, a light source and a graphic card, and further comprises a detection assembly and a carrying table assembly used for carrying a camera module, the detection assembly is provided with a hemispherical detection cavity, the end face of the detection cavity is provided with a detection window, and the detection window is provided with a light source. The carrier assembly is movably arranged at the detection window and enables the camera module to face the detection cavity, and the light source and the graphic card are arranged on the inner wall of the detection cavity. According to the utility model, the accuracy of the optical performance detection device for the camera module can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of camera module optical performance testing equipment, and in particular to a camera module optical performance testing device. Background Technology

[0002] As imaging products become more segmented, the market for panoramic shooting products is expanding, and the requirements for image resolution and field of view are gradually increasing. Existing camera modules, when performing close-up shooting, primarily capture images of flat charts illuminated by ordinary planar light sources. However, when the field of view of a camera module exceeds 180°, the image becomes spherical. Ordinary planar light sources and flat charts cannot meet the testing requirements, leading to errors in the close-up shooting tests of wide-angle camera modules. Therefore, it is necessary to improve existing camera module optical performance testing devices to enhance their accuracy. Utility Model Content

[0003] The purpose of this invention is to provide a camera module optical performance testing device to solve the problem of poor testing accuracy in existing camera module optical performance testing devices.

[0004] To solve the above-mentioned technical problems, this utility model provides a camera module optical performance testing device, including a bracket, a light source, a pattern card, a testing component, and a stage assembly for supporting the camera module. The testing component has a hemispherical testing cavity with a testing window on its end face. The stage assembly is movably disposed at the testing window so that the camera module faces the testing cavity. The light source and the pattern card are arranged on the inner wall of the testing cavity.

[0005] Optionally, the stage assembly may block the detection window.

[0006] Optionally, the stage assembly is rotatably mounted on the detection assembly.

[0007] Optionally, the detection assembly includes a panel and a detection body. The panel is mounted on the bracket, the detection cavity is located inside the detection body, and the detection window is opened on the detection body. The side of the detection body with the detection window is mounted on the panel, and the stage assembly is rotatably mounted on the panel.

[0008] Optionally, the detection body is a hemispherical shell.

[0009] Optionally, the detection assembly further includes a support frame, the stage assembly has an active path, and the support frame is located on the active path of the stage assembly.

[0010] Optionally, the stage assembly includes a base plate rotatably connected to the detection assembly, a mounting base disposed on the base plate, a cover plate rotatably connected to the mounting base, and a locking member for confining the camera module within the mounting cavity formed by the cover plate and the mounting base.

[0011] Optionally, a heating component for heating the camera module may also be included.

[0012] Optionally, the heating assembly includes a heating wire disposed on the mounting base, a temperature sensor for measuring the temperature of the heating wire, and a temperature control module for controlling the temperature of the heating wire based on the temperature measured by the temperature sensor.

[0013] Optionally, the stage assembly further includes a limiting member for holding the stage assembly against the detection assembly.

[0014] The optical performance testing device for a camera module provided by this utility model has the following beneficial effects:

[0015] Because the detection component has a hemispherical detection cavity with a detection window on its end face, the stage assembly is movably disposed at the detection window so that the camera module faces the detection cavity, and the light source and the image card are arranged on the inner wall of the detection cavity, the camera module can detect the image information of the image card disposed on the hemispherical inner wall of the detection cavity. This can simulate the field of view of a wide-angle camera, thereby improving the accuracy of the camera module optical performance detection device in detecting the camera module. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the camera module optical performance testing device in a restricted state in an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the camera module optical performance testing device in the open state in an embodiment of this utility model;

[0018] Figure 3 This is a side view of the camera module optical performance testing device in an embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the first state of the stage assembly and heating assembly of the camera module optical performance testing device in this utility model embodiment;

[0020] Figure 5 This is a schematic diagram of the second state of the stage assembly and heating assembly of the camera module optical performance testing device in this utility model embodiment;

[0021] Figure 6This is a top view of a portion of the platform assembly of the camera module optical performance testing device in this utility model;

[0022] Figure 7 This is an isometric view of a portion of the platform assembly of the camera module optical performance testing device in this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100-Bracket; 200-Detection component; 220-Detection window; 230-Panel; 240-Detection body; 250-Support frame; 251-Support plate; 252-First rib; 253-Second rib; 300-Platform assembly; 310-Base plate; 320-Mounting base; 330-Cover plate; 340-Locking component; 350-Limiting component; 410-Heating wire; 420-Temperature sensor; 430-Temperature control module; 500-Camera module. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , Figure 1 This is a schematic diagram of the camera module optical performance testing device in a restricted state in an embodiment of this utility model. Figure 2 This is a schematic diagram of the camera module optical performance testing device in the open state in an embodiment of this utility model. Figure 3 This is a side view of the camera module optical performance testing device in an embodiment of this utility model. Figure 4 This is a schematic diagram of the first state of the platform assembly 300 and heating assembly of the camera module optical performance testing device in this embodiment of the present invention. Figure 5This is a schematic diagram of the second state of the stage assembly 300 and heating assembly of the camera module optical performance testing device in this embodiment of the present invention. This embodiment provides a camera module optical performance testing device, including a bracket 100, a light source, a pattern card, a testing assembly 200 having a hemispherical testing cavity with a testing window 220 on its end face, and a stage assembly 300 for supporting a camera module 500 and movably disposed at the testing window 220, so that the camera module 500 is positioned within the testing cavity. The light source and the pattern card are mounted on the inner wall of the testing cavity. The device includes a bracket 100, a light source, a pattern card, a testing assembly 200, and a stage assembly 300 for supporting the camera module 500. The testing assembly has a hemispherical testing cavity with a testing window 220 on its end face. The stage assembly 300 is movably disposed at the testing window 220, so that the camera module 500 faces the testing cavity. The light source and the pattern card are arranged on the inner wall of the testing cavity.

[0032] Since the detection component 200 has a hemispherical detection cavity with a detection window 220 on its end face, and the stage component 300 is movably disposed at the detection window 220 with the camera module 500 facing the detection cavity, and the light source and the image card are arranged on the inner wall of the detection cavity, the camera module 500 can detect the image information of the image card disposed on the hemispherical inner wall of the detection cavity. This can simulate the field of view of a wide-angle camera, thereby improving the accuracy of the camera module 500 detection by the camera module optical performance detection device.

[0033] The stage assembly 300 can block the detection window 220. This prevents external stray light from entering the detection cavity and improves the accuracy of the camera module optical performance detection device in detecting the camera module 500.

[0034] The stage assembly 300 is rotatably mounted on the detection assembly 200. Thus, when the stage assembly 300 rotates to the detection window 220, the camera module 500 is positioned inside the detection cavity, facilitating detection of the camera module 500. When the stage assembly 300 rotates outside the detection cavity, it facilitates the installation of the camera module 500, thereby improving the ease of use of the camera module optical performance testing device.

[0035] The detection component 200 includes a panel 230 and a detection body 240. The panel 230 is mounted on the bracket 100. The detection cavity is located inside the detection body 240, and the detection window 220 is opened on the detection body 240. The side of the detection body 240 with the detection window 220 is mounted on the panel 230. The stage assembly 300 is rotatably mounted on the panel 230.

[0036] Preferably, the detection body 240 is a hemispherical shell.

[0037] The detection assembly 200 also includes a support frame 250. The stage assembly 300 has a movement path, and the support frame 250 is located on the movement path of the stage assembly 300. Specifically, the support frame 250 includes a support plate 251, a first rib 252, and a second rib 253. The support plate 251 is disposed on the panel 230. The first rib 252 and the second rib 253 are disposed parallel to each other on the support plate 251, and the first rib 252 and the second rib 253 form a support surface for supporting the stage assembly 300. Thus, when the stage assembly 300 is flipped to the detection window 220, the camera module 500 can be located inside the detection cavity. When the stage assembly 300 is flipped to the support surface of the first rib 252 and the second rib 253, it can be supported by the first rib 252 and the second rib 253, which facilitates the installation of the camera module 500.

[0038] refer to Figure 4 , Figure 5 , Figure 6 and Figure 7 , Figure 6 This is a top view of a portion of the structure of the platform assembly 300 of the camera module optical performance testing device in this utility model. Figure 7 This is an isometric view of a portion of the structure of the stage assembly 300 of the camera module optical performance testing device of this utility model. The stage assembly 300 includes a base plate 310 rotatably connected to the testing assembly 200, a mounting base 320 disposed on the base plate 310, a cover plate 330 rotatably connected to the mounting base 320, and a locking member 340 for confining the camera module 500 within the mounting cavity formed by the cover plate 330 and the mounting base 320.

[0039] In this embodiment, the locking element 340 is a snap-fit. This facilitates the installation and removal of the camera module 500.

[0040] The stage assembly 300 further includes a limiting member 350 for holding the stage assembly 300 against the detection assembly 200. Specifically, the base plate 310 of the stage assembly 300 abuts against the panel 230 of the detection assembly 200. The limiting member 350 is preferably a quick clamp disposed on the detection assembly 200.

[0041] The camera module optical performance testing device also includes a heating component for heating the camera module 500. This simulates the optical performance of the camera module 500 under different temperature environments, further improving the accuracy of the test.

[0042] The heating assembly includes a heating wire 410 disposed on the mounting base 320, a temperature sensor 420 for measuring the temperature of the heating wire 410, and a temperature control module 430 for controlling the temperature of the heating wire 410 based on the temperature measured by the temperature sensor 420.

[0043] Preferably, the heating wire 410 is U-shaped, and the camera module 500 and the cover plate 330 are disposed inside the U-shape.

[0044] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A camera module optical performance detection device, comprising a bracket, a light source and a chart, characterized in that, It also includes a detection component and a stage assembly for supporting the camera module. The detection component has a hemispherical detection cavity with a detection window on its end face. The stage assembly is movably disposed at the detection window so that the camera module faces the detection cavity. The light source and the pattern card are arranged on the inner wall of the detection cavity. 2.The camera module optical performance detection device of claim 1, wherein, The platform assembly can block the detection window. 3.The camera module optical performance detection device of claim 1, wherein, The stage assembly is rotatably mounted on the detection assembly.

4. The camera module optical performance detection device of claim 3, wherein, The detection assembly includes a panel and a detection body. The panel is mounted on the bracket, the detection cavity is located inside the detection body, and the detection window is opened on the detection body. The side of the detection body with the detection window is mounted on the panel, and the stage assembly is rotatably mounted on the panel. 5.The camera module optical performance detection device of claim 4, wherein, The detection body is a hemispherical shell. 6.The camera module optical performance detection device of claim 3, wherein, The detection component also includes a support frame, and the stage component has a movement path, with the support frame located on the movement path of the stage component. 7.The camera module optical performance detection device of claim 1, wherein, The platform assembly includes a base plate rotatably connected to the detection assembly, a mounting base disposed on the base plate, a cover plate rotatably connected to the mounting base, and a locking member for confining the camera module within the mounting cavity formed by the cover plate and the mounting base. 8.The camera module optical performance detection device of claim 7, wherein, It also includes a heating component for heating the camera module. 9.The camera module optical performance detection device of claim 8, wherein, The heating assembly includes a heating wire disposed on the mounting base, a temperature sensor for measuring the temperature of the heating wire, and a temperature control module for controlling the temperature of the heating wire based on the temperature measured by the temperature sensor. 10.The camera module optical performance detection device of claim 1, wherein, The stage assembly also includes a limiting member for holding the stage assembly against the detection assembly.

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