Testing device and testing system

Abstract

A testing device and a testing system relate to the technical field of testing. The testing device comprises a main body and a clamping part, and the main body is provided with a light-transmitting area; the clamping part is arranged on the main body, and the clamping part can fixedly connect the camera module so that at least part of infrared light emitted by the camera module can enter a lens of the camera module through the light-transmitting area.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of testing, in particular to a testing device and a testing system. BACKGROUND

[0002] The function of camera face recognition needs IR LED (Infrared Light Emitting Diode) flicker to capture face features by bright and dark shooting, and then realize the function of recognizing and unlocking the computer. The traditional testing fixture completely wraps the camera module when testing the camera module, and cannot confirm whether there is a light leakage defect at the bottom of the lens. CONTENT OF THE UTILITY MODEL

[0003] The first aspect of the present disclosure provides a testing device, comprising:

[0004] A main body, the main body is provided with a light transmission area;

[0005] A clamping part, the clamping part is arranged on the main body, and the clamping part can fixedly connect the camera module so that at least part of the infrared light emitted by the camera module can enter the lens of the camera module through the light transmission area.

[0006] In some modified embodiments of the first aspect of the present disclosure, the clamping part comprises a first clamping part and a second clamping part, and the first clamping part and the second clamping part are arranged on the two sides of the light transmission area respectively.

[0007] In some modified embodiments of the first aspect of the present disclosure, the clamping part comprises a first clamping plate and a second clamping plate, and the first clamping plate and the second clamping plate are oppositely arranged, and the first clamping plate and the second clamping plate are movably connected to the main body so that the first clamping plate and the second clamping plate can move towards each other and away from each other.

[0008] In some modified embodiments of the first aspect of the present disclosure, the main body is provided with a receiving groove, and the inner wall of the receiving groove surrounds the light transmission area, and the clamping part can fix the camera module in the light transmission area and make the camera module be at a set distance from the inner wall of the receiving groove.

[0009] In some modified embodiments of the first aspect of the present disclosure, the cross section of the receiving groove gradually shrinks from the bottom to the top, the side wall of the receiving groove is curved to form a curved surface from the bottom to the top, and the side wall of the receiving groove is curved in the circumferential direction to surround the light transmission area.

[0010] In some modified embodiments of the first aspect of the present disclosure, further comprising:

[0011] A reflection assembly, the reflection assembly is arranged in the light transmission area, and the reflection surface of the reflection assembly faces the inside of the light transmission area.

[0012] In some alternative embodiments of the first aspect of the present disclosure, the reflection assembly comprises a plurality of reflection pieces, the reflection pieces are movably arranged in the light-transmitting region; the reflection angle and reflection range of the reflection pieces are changed by adjusting the reflection pieces.

[0013] In some alternative embodiments of the first aspect of the present disclosure, the reflection assembly is arranged along the edge and the bottom of the light-transmitting region.

[0014] In some alternative embodiments of the first aspect of the present disclosure, the test device further comprises:

[0015] The baffle is provided with at least two baffles, the two baffles are oppositely arranged in the light-transmitting region, the camera module can be arranged between the two baffles, and the two baffles can move towards each other and move away from each other.

[0016] The second aspect of the present disclosure provides a test system, comprising:

[0017] The test device, the controller and the light-sensing device; the test device comprises:

[0018] The main body is provided with a light-transmitting region;

[0019] The clamping portion is arranged on the main body, and the clamping portion can fixedly connect the camera module so that at least part of the infrared light emitted by the camera module can enter the lens of the camera module through the light-transmitting region;

[0020] The controller has an interface for connecting with the camera module, the interface is arranged on the clamping portion; the light-sensing device is arranged in the light-transmitting region and connected with the controller. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will be readily understood through reading the detailed description of the exemplary embodiments of the present disclosure below in conjunction with the accompanying drawings. In the drawings, several embodiments of the present disclosure are illustrated by way of example and not limitation, in which the same or corresponding elements are referred to with the same or corresponding reference numerals, in which:

[0022] Figure 1 A structural schematic view of an example of a test device is schematically shown;

[0023] Figure 2 Another example of a structural schematic view of a test device is schematically shown;

[0024] Figure 3 A structural schematic view of a containing groove of a test device is schematically shown;

[0025] Figure 4 A structural schematic view of another example of a test device is schematically shown.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 1, main body; 2, light transmission area; 3, clamping part; 31, first clamping part; 32, second clamping part; 4, camera module; 41, infrared light emitting diode; 42, lens; 5, accommodating groove; 6, reflecting assembly; 7, first clamping plate; 8, second clamping plate; 9, baffle; 10, light sensing device; 11, reflecting sheet; 12, interface. DETAILED DESCRIPTION

[0028] Exemplary embodiments of the present disclosure will be described in greater detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly understood, and the scope of the present disclosure can be accurately conveyed to those skilled in the art.

[0029] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present disclosure should be understood as the general meaning understood by those skilled in the art to which the present disclosure belongs.

[0030] The function of face recognition of the camera needs the I R LED (Infrared Light Emitting Diode) to flicker to take pictures of bright and dark to capture facial features, and then realize the function of recognizing and unlocking the computer. The traditional test fixture completely wraps the camera module when testing the camera module, and cannot confirm whether there is a light leakage defect at the bottom of the lens

[0031] In order to solve the above technical problems, the embodiment of the present disclosure provides a test device, which can make at least part of the infrared light emitted by the camera module enter the lens of the camera module through refraction and reflection, so as to confirm whether there is a light leakage defect at the bottom of the lens.

[0032] Embodiment 1

[0033] As shown in Figure 1 A test device, comprising a main body 1 and a clamping part 3, the main body 1 is provided with a light transmission area 2; the clamping part 3 is arranged on the main body 1, and the clamping part 3 can fixedly connect the camera module 4 so that at least part of the infrared light emitted by the camera module 4 can enter the lens 42 of the camera module 4 through the light transmission area 2.

[0034] The main body 1 is the main structural part of the testing device, which carries and integrates all necessary functional components. It is the basic framework of the entire device, ensuring that various parts work together correctly. Specifically, the main body 1 can be a closed main body 1, which completely encloses the internal components, possibly providing better protection against external interference or contamination. Suitable for testing occasions that require a highly isolated environment. The main body 1 can be the operating platform of the test fixture, and the main body 1 can also be an open main body 1, designed with an open space, allowing more operational flexibility and observability. Suitable for situations that require frequent adjustment or monitoring of the testing process. The main body 1 can also be a modular main body 1, composed of multiple interchangeable modules, which can be customized and expanded according to different testing needs. Suitable for a variety of purposes and different specifications of testing.

[0035] The light transmission area 2 refers to a specific part of the main body 1 designed with light transmission characteristics, allowing light to pass through. Specifically, the light transmission area 2 can be circular, which can ensure that light passes through the light transmission area 2 evenly, reducing edge distortion. The light transmission area 2 can also be square or rectangular, which is more suitable if the camera module 4 is square or rectangular. More specifically, the main body has an operating or bearing surface, and the light transmission area is recessed in the operating or bearing surface, so that at least part of the infrared light emitted by the camera module 4 can enter the lens 42 of the camera module 4 through the light transmission area. This design can maximize the use of light transmission area and ensure that as much light as possible reaches the sensor. More specifically, the light transmission area can also be a special shape, such as an ellipse or a polygon, for special applications that require a customized light transmission area 2 shape. The camera module's lens and infrared light can be arranged facing away from the light transmission area, thereby better simulating the camera

[0036] For materials such as metal or plastic, the light transmission area 2 opening can be created by mechanical processing such as cutting or drilling; this method is suitable for regular-shaped and small-sized light transmission areas 2. High-precision laser cutting technology can also be used to accurately cut the required light transmission area 2 shape on the main body 1, especially suitable for complex or delicate geometries. Water jet cutting can also be used, which is a cutting method with no heat-affected zone, suitable for cutting thick plate materials, and can maintain edge quality. If the main body 1 is manufactured by casting or injection molding, the position of the light transmission area 2 can be pre-set in the mold. For example, a light transmission area can be directly injection molded in a plastic main body 1.

[0037] The clamping part 3 is used to fix or hold the sample to be tested, which is responsible for firmly fixing the camera module 4 or other samples to be tested in the light transmission area 2 of the main body 1, and ensures the stability of the position. The clamping part 3 can be arranged adjacent to the light transmission area, and the clamping part can also be arranged in the light transmission area. Specifically, the clamping part 3 can be a mechanical clamp. More specifically, the clamping part 3 can be a screw clamp, which applies pressure by rotating the screw to tightly fix the camera module 4 on the clamping part 3, and is suitable for situations that require strong fixing force. The clamping part 3 can also be a lever clamp, which quickly locks or releases the camera module 4 by using the principle of lever, and is simple and convenient to operate, and is suitable for frequent sample replacement occasions. The clamping part 3 can also be a bayonet clamp, which is similar to the bayonet design of the camera lens 42, and fixes the camera module 4 by rotating or pushing in, which is convenient for quick installation and disassembly. The clamping part 3 can be located at the top of the main body 1, and press the camera module 4 from above, which is suitable for the case that the camera module 4 is light and does not require excessive clamping force. The clamping part 3 can also be located on the side of the main body 1, and applies pressure from both sides inward, which can provide better lateral support to prevent the camera module 4 from moving horizontally. For example, the clamping part 3 can be a slot structure, which is matched with the camera module 4. The clamping part 3 can also be a bottom support, which sets a support structure at the bottom of the main body 1, and cooperates with the top or side clamping part 3 to form double fixation from top to bottom or left to right, to ensure the stability of the camera module 4.

[0038] The clamping part 3 can also be a vacuum clamp. Specifically, the vacuum clamp can be a planar vacuum suction cup, which is suitable for flat surface camera module 4, and fixes the camera module 4 on the clamping position by generating adsorption force through vacuum suction. The vacuum clamp can also be a planar vacuum suction cup, which is distributed with multiple small suction cups on the clamping part 3, and is suitable for irregular shaped camera module 4, and provides more uniform adsorption force. The vacuum clamp can be arranged on the back of the camera module 4, and fixes it on the main body 1 by adsorption force, which will not block the optical path and ensure the smooth passage of light through the light transmission area 2. The side auxiliary support can set auxiliary support structure on the side of the main body 1, and cooperate with the vacuum clamp to further enhance the stability of the fixation.

[0039] The clamping part 3 can also be a magnetic clamp. Specifically, the clamping part 3 can be a permanent magnet clamp, which uses a permanent magnet, and is suitable for metal material camera module 4, and fixes it on the clamping part 3 by magnetic force. The clamping part 3 can also be an electromagnetic clamp, which controls the magnetic force of the electromagnet by current, and can quickly open or close the clamping function when needed, and is suitable for automatic test system. More specifically, the magnet can be embedded in the inside of the main body 1, and the camera module 4 is attracted by magnetic force to fix it in the specified position, which can make the appearance of the clamping part 3 more simple and reduce the influence on the appearance. The magnet can also be directly installed on the outside of the main body 1, and acts on the camera module 4 by magnetic force, which is convenient for adjustment and maintenance.

[0040] The clamping part 3 can also be an elastic clamp. Specifically, the clamping part 3 can be a spring clamp, using a spring as a clamping element, fixing the camera module 4 on the clamping part 3 by the elastic force of the spring, suitable for camera modules 4 of different sizes, and has certain self-adaptive ability. The clamping part 3 can also be a rubber pad clamp, using a soft rubber pad on the contact surface of the clamping part 3, which can provide enough friction and protect the surface of the camera module 4 from damage. More specifically, an elastic clamp can be provided at the four corners of the main body 1, uniformly applying pressure from four directions to ensure the stability of the camera module 4 in all directions. A larger elastic clamp can also be provided at the center of the main body 1, applying pressure through the center point, suitable for smaller or symmetrical camera modules 4.

[0041] The clamping part 3 can also be a modular clamp. Specifically, the clamping part 3 can be an adjustable clamp, allowing users to adjust according to different camera modules 4, such as adjusting the clamping force and changing the clamping angle. It is suitable for camera modules 4 of various models and specifications. The clamping part 3 can also be a quick-change clamp, which uses a standardized interface and can quickly replace different clamping modules to meet different testing needs. For example, different clamping methods (such as screw type, vacuum type, etc.) can be selected according to different camera modules 4. Modular clamps can be flexibly arranged at any position of the main body 1 according to actual needs, and can be used alone or in combination to achieve the best fixing effect.

[0042] The camera module 4 is a complete optical imaging unit that converts light signals into electrical signals and generates image data through digital processing. Its core components can include a lens 42, an image sensor, an image signal processor, a circuit board, an infrared light-emitting diode 41, and an interface. The lens 42 is responsible for focusing light onto the image sensor. The image sensor, also known as the photosensitive chip, is located inside the lens 42 and converts the received light signals into electrical signals. Image sensor types include CMOS (Complementary Metal Oxide Semiconductor) and CCD (Charge-Coupled Device). The image signal processor processes the raw data output by the image sensor, such as noise reduction, white balance adjustment, color correction, etc., to generate high-quality images. The circuit board includes power management, clock synchronization, control logic, etc. circuit to ensure normal operation of the module. The interface is used for communication with external devices, such as MIPI (Mobile Industry Processor Interface), USB, etc. The infrared light-emitting diode 41 is used to emit infrared light, which is diffusely reflected after shining on the surface of the object. Part of the reflected light is captured by the lens 42 of the camera. These light rays are focused by the lens system and finally imaged on the image sensor.

[0043] The present disclosure sets a light-transmitting area 2 on the main body 1, and sets a clamping part 3 to fix and connect the camera module 4, so that at least part of the infrared light emitted by the camera module 4 can be refracted and reflected through the light-transmitting area 2 and enter the lens 42 of the camera module 4, and then it is confirmed whether there is a light leakage defect at the bottom of the lens.

[0044] Specifically, the lens 42 is connected to the circuit board by means of thermal adhesive. Part of the camera module 4 emits infrared light with a wavelength of 940nm, which has a much stronger penetrating power than the original camera module 4 emitting 850nm, resulting in a lot of light penetrating the thermal adhesive at the junction of the lens seat and the circuit board and then entering the photosensitive chip inside the lens, affecting the imaging. The light-transmitting space provided by the test fixture of the present disclosure can make at least part of the infrared light emitted by the infrared light-emitting diode 41 of the camera module 4 be sufficiently refracted and reflected in the light-transmitting space so as to irradiate the thermal adhesive around the lens 42, thereby confirming whether the infrared light can pass through the thermal adhesive to cause a light leakage defect at the bottom of the lens.

[0045] As shown in Figure 1 In some modified embodiments of the present disclosure, the clamping part 3 includes a first clamping part 31 and a second clamping part 32, and the first clamping part 31 and the second clamping part 32 are respectively arranged on both sides of the light-transmitting area 2. Specifically, the first clamping part 31 and the second clamping part 32 can be symmetrically arranged on both sides of the light-transmitting area 2 to ensure that the camera module 4 is subjected to uniform pressure and to avoid deflection or deformation caused by uneven force. More specifically, the first clamping part 31 and the second clamping part 32 can be the above-mentioned mechanical clamp, vacuum clamp, magnetic clamp, elastic clamp and modular clamp. As long as the first clamping part 31 and the second clamping part 32 can clamp the camera module 4, the specific structure and type of the first clamping part 31 and the second clamping part 32 are not limited. The provision of two clamping parts can provide stable support while avoiding blocking the light-transmitting area 2, ensuring that the infrared light can pass through smoothly.

[0046] As shown in Figure 1 and Figure 2 In some modified embodiments of the present disclosure, the clamping part 3 includes a first clamping plate 7 and a second clamping plate 8, and the first clamping plate 7 and the second clamping plate 8 are arranged opposite to each other and movably connected to the main body 1 so that the first clamping plate 7 and the second clamping plate 8 can move towards each other and away from each other.

[0047] Specifically, two parallel sliding rails can be installed on the main body 1, respectively on the two sides of the light-transmitting area 2. The first clamping plate 7 and the second clamping plate 8 are respectively fixed on two sliding blocks, which can freely slide on the sliding rails. A manual or electric driving mechanism can be used to control the movement of the sliding blocks. For example, a screw rod, a gear rack, a linear actuator, or the like can be used. When it is necessary to clamp the camera module 4, the driving mechanism pushes the sliding blocks to move inward, so that the first clamping plate 7 and the second clamping plate 8 approach each other, and the camera module 4 is firmly fixed in the middle. When it is necessary to release the camera module 4, the driving mechanism pulls the sliding blocks to move outward, so that the first clamping plate 7 and the second clamping plate 8 move away from each other, facilitating the removal or replacement of the camera module 4.

[0048] More specifically, two air cylinders or oil cylinders can also be installed on the main body 1, respectively connected to the first clamping plate 7 and the second clamping plate 8. The air cylinders or oil cylinders can drive the movement of the clamping plates by compressed air or hydraulic oil. A control system (such as a solenoid valve, a pressure sensor, etc.) can also be provided to control the action of the air cylinders or oil cylinders, so as to automatically open and close the clamping plates. Limit switches can also be provided at the end of the travel of the clamping plates to ensure that the clamping plates do not move excessively, protecting the equipment and the sample. When it is necessary to clamp the camera module 4, the control system starts the air cylinder or oil cylinder to push the clamping plates to move inward, so that they approach each other and fix the camera module 4. When it is necessary to release the camera module 4, the control system reversely drives the air cylinder or oil cylinder to move the clamping plates outward, facilitating the removal or replacement of the camera module 4.

[0049] More specifically, a lead screw can also be installed on the main body 1, with the first clamping plate 7 and the second clamping plate 8 respectively connected to the two ends of the lead screw. Nuts matching the lead screw are installed on the two clamping plates, and when the lead screw rotates, the nuts drive the clamping plates to move along the axis of the lead screw. A stepper motor or a servo motor can be used to drive the rotation of the lead screw, so as to automatically open and close the clamping plates. In order to ensure that the clamping plates remain parallel during movement, guide rails can be installed on the main body 1 to limit the lateral movement of the clamping plates. When it is necessary to clamp the camera module 4, the driving motor rotates the lead screw to make the first clamping plate 7 and the second clamping plate 8 approach each other, and the camera module 4 is firmly fixed in the middle. When it is necessary to release the camera module 4, the driving motor reversely rotates the lead screw to make the first clamping plate 7 and the second clamping plate 8 move away from each other, facilitating the removal or replacement of the camera module 4.

[0050] By providing the first clamping plate 7 and the second clamping plate 8 and enabling the first clamping plate 7 and the second clamping plate 8 to move towards each other and away from each other, different types of camera modules 4 can be clamped, thereby improving the application range of the testing device.

[0051] For example, the first clamping plate 7 and the second clamping plate 8 can be made of a material with high rigidity and low friction, such as aluminum or stainless steel, to ensure that the clamping plates can firmly clamp the camera module 4 and move smoothly. Figure 1As shown, in some modified embodiments of this disclosure, the main body 1 is provided with a receiving groove 5, the inner wall of the receiving groove 5 forms a light-transmitting area 2, and the clamping part 3 can fix the camera module 4 in the light-transmitting area 2 and make the camera module 4 at a set distance relative to the inner wall of the receiving groove 5.

[0052] The receiving groove 5 is a groove-shaped structure specifically designed on the main body 1 for accommodating the camera module 4. The inner wall of the receiving groove 5 forms a light-transmitting area 2, ensuring that infrared light can be refracted and enter the lens 42 of the camera module 4. The receiving groove 5 can be open on one side for easy insertion and removal of the camera module 4. The receiving groove 5 can also be open on multiple sides, suitable for situations where the camera module 4 needs to be operated or adjusted from multiple directions. The clamping part 3 can fix the camera module 4 in the light-transmitting area 2 and make the camera module 4 at a set distance relative to the inner wall of the receiving groove 5, so that the infrared light of the camera module 4 has sufficient scattering space and can pass through the thermosetting adhesive around the lens 42 after being refracted by the side wall of the receiving groove 5, and enter the image sensor inside the lens 42, thereby enabling the detection device to test the light transmission problem of the thermosetting adhesive.

[0053] For example, if the width of the camera module is 3mm, a space of 1.5mm to 3mm can be left around the module lens and the IR LED for convenience. That is, the set distance between the camera module 4 and the inner wall of the receiving slot 5 can be 1.5mm to 3mm, and the width of the receiving slot can be 6-9mm. This allows the test fixture to leave empty slots around the camera module lens and the IR LED, so that the infrared light emitted by the IR LED can be fully reflected and refracted.

[0054] like Figure 3 As shown, in some modified embodiments of this disclosure, the cross-section of the receiving groove 5 gradually shrinks from bottom to top, the sidewall of the receiving groove 5 bends from bottom to top to form a curved surface, and the sidewall of the receiving groove 5 bends circumferentially to form a light-transmitting area 2.

[0055] The cross-section of the receiving groove 5 gradually tapers from bottom to top, forming a cone-shaped or trumpet-shaped structure. This design reduces the scattering of infrared light from the top of the receiving groove 5, allowing more infrared light to pass through the thermosetting adhesive surrounding the lens 42 and enter the lens 42. The sidewalls of the receiving groove 5 gradually curve from bottom to top, forming a smooth curved surface, allowing more infrared light to be refracted into the lens 42 through the sidewalls of the receiving groove 5. The circumferentially curved sidewalls surround the light-transmitting area 2, forming a hemispherical light-transmitting area 2, reducing light interference from external sources and preventing infrared light from scattering away from around the receiving groove 5.

[0056] Specifically, the cross section of the accommodating groove 5 gradually narrows from the bottom to the top, the side wall of the accommodating groove 5 is curved to form a curved surface from the bottom to the top, and the side wall of the accommodating groove 5 is curved in the circumferential direction to form a hemispherical or spherical frustum-shaped light-transmitting area 2, thereby reducing the infrared light scattered out of the light-transmitting area 2 and allowing more infrared light to pass through the heat-resistant glue around the lens 42 and enter the inside of the lens 42, further ensuring that the test device can test the light-transmitting problem of the heat-resistant glue.

[0057] As shown in Figure 1 In some alternative embodiments of the present disclosure, a reflecting assembly 6 is further included, which is arranged in the light-transmitting area 2, and a reflecting surface of the reflecting assembly 6 faces the inside of the light-transmitting area 2. The reflecting assembly 6 is an optical element for changing the direction of light propagation, which is composed of one or more reflecting elements. The reflecting assembly 6 can reflect the incident light to a specified direction, ensuring that the light can enter the lens 42 of the camera module 4. Specifically, the reflecting assembly 6 can be a plane mirror, and the reflecting surface is a plane, which is suitable for cases requiring a simple reflection path. The materials of the plane mirror include glass, metal (such as aluminum, silver), etc., and the surface is coated with a high-reflectivity coating, such as an aluminum film, a silver film, or a gold film. The plane mirror can provide very high reflectivity in the visible and infrared wavebands, and is suitable for a wide range of optical applications. It has a simple structure, is easy to manufacture and install, and has a low cost. The plane mirror is not easily affected by the environment and has good long-term stability. The reflecting assembly 6 can also be a curved mirror, and the reflecting surface is a curved surface, which can be a convex surface or a concave surface, and is suitable for cases requiring focusing or scattering of light. The materials of the curved mirror include glass, metal, etc., and the surface is coated with a high-reflectivity coating, such as an aluminum film, a silver film, or a gold film. The concave mirror can focus light to a point, while the convex mirror can scatter light apart, which is suitable for applications requiring a specific beam shape. The curved mirror can provide very high reflectivity in the visible and infrared wavebands, and is suitable for a wide range of optical applications. Mirrors with different curvatures can be selected as needed to achieve different optical effects.

[0058] As shown in Figure 4 In some alternative embodiments of the present disclosure, the reflecting assembly 6 includes a plurality of reflecting pieces 11, which are movably arranged in the light-transmitting area 2; and the reflecting angle and reflecting range of the reflecting surface are changed by adjusting the reflecting pieces 11. This design provides greater flexibility, which can dynamically adjust the light path according to different test requirements and is suitable for different types of camera assemblies. The reflecting piece 11 is an optical element for changing the direction of light propagation, which is composed of a surface with high reflectivity. The reflecting piece 11 can be used alone or in combination, and the reflecting path of the light is controlled by adjusting the position and angle of the reflecting piece 11, ensuring that more light can enter the lens 42 of the camera module 4. Specifically, the reflecting piece 11 can be a plane reflecting piece 11 or a curved reflecting piece 11.

[0059] Specifically, each reflector 11 can be connected to the inner wall of the receiving groove 5 via a rotating shaft, allowing the reflector 11 to rotate freely around the shaft. The angle of the reflector 11 can be adjusted using a manual knob, gear transmission, or electric motor to drive the rotating shaft. The reflector 11's free rotation around the shaft allows the user to adjust the reflection angle as needed. Precise angle control can be achieved through gear transmission or an electric motor, making it suitable for automated testing systems.

[0060] Each reflector 11 can also be mounted on one or more slide rails, allowing the reflector 11 to slide freely on the rails and change its position and angle. The slide rails can be driven by a manual push rod, a linear actuator, or an electric motor to adjust the position of the reflector 11. The reflector 11 can slide freely on the slide rails, and the user can adjust the reflection position and angle as needed. Precise position control can also be achieved using a linear actuator or electric motor, making it suitable for automated testing systems.

[0061] The reflector 11 can also be fixed to the inner wall of the receiving groove 5 by magnets, allowing the user to adjust the position and angle of the reflector 11 by moving the magnets. The position adjustment of the reflector 11 can be achieved manually or by an electric motor driving the magnets. The magnetic fixing structure allows for quick adjustment of the position and angle of the reflector 11, making it suitable for applications requiring frequent adjustments. The magnetic fixing structure is relatively simple and easy to operate and maintain.

[0062] In some modified embodiments of the first aspect of this disclosure, the reflective component 6 is laid along the edge and bottom of the light-transmitting region 2. The reflective component 6, laid along the edge of the light-transmitting region 2, forms a ring-shaped or frame-like structure surrounding the light-transmitting region 2. The edge-laid reflective component 6 can reflect light emitted from the IR LED into the interior of the light-transmitting region 2, ensuring that more light can enter the lens 42 of the camera module 4. Furthermore, this design can reduce light loss and improve light utilization. The reflective component 6, laid along the bottom of the light-transmitting region 2, forms a planar or curved structure located below the light-transmitting region 2. The bottom-laid reflective component 6 can reflect downward-propagating light emitted from the IR LED into the interior of the light-transmitting region 2, similarly ensuring that more light can enter the lens 42 of the camera module 4.

[0063] like Figure 2 As shown, in some modified embodiments of this disclosure, the testing device further includes baffles 9, at least two baffles 9 are provided, the two baffles 9 are arranged opposite each other in the light-transmitting area 2, the camera module 4 can be arranged between the two baffles 9, and the two baffles 9 can move toward each other and away from each other.

[0064] The baffle 9 is a mechanical element for fixing and adjusting the size of the light transmission space around the camera module 4, which can be arranged on both sides of the light transmission area 2 and can move towards each other and away from each other. By arranging the baffle 9, the reflection angle and the size of the light transmission space can be adjusted to meet more testing requirements. Specifically, two parallel sliding rails can be installed on both sides of the light transmission area 2, and the baffle 9 is fixed on the sliding blocks on the sliding rails, and the sliding blocks can slide freely on the sliding rails. The sliding blocks can be driven by a manual knob, a gear transmission or an electric motor to move the baffle 9. Limit switches can also be provided at both ends of the sliding rails to ensure that the baffle 9 does not move excessively, protecting the equipment and samples. Two air cylinders or oil cylinders can also be installed on both sides of the light transmission area 2, and the baffle 9 is connected to the main body 1 through the air cylinders or oil cylinders, which can drive the movement of the baffle 9 through compressed air or hydraulic oil. A control system (such as a solenoid valve and a pressure sensor) can also be provided to control the action of the air cylinder or oil cylinder to automatically open and close the baffle 9. A lead screw can also be installed on both sides of the light transmission area 2, and the lead screw is connected to the two baffles 9 at both ends; the baffle 9 is provided with a nut matched with the lead screw, and when the lead screw rotates, the nut drives the baffle 9 to move along the axis of the lead screw. A stepper motor or a servo motor can be used to drive the rotation of the lead screw to automatically open and close the baffle 9; to ensure that the baffle 9 remains parallel during movement, guide rails can also be installed on the main body 1 to limit the lateral movement of the baffle 9.

[0065] Example 2

[0066] A test system includes a test device, a controller and a light sensing device 10; the test device includes a main body 1 and a clamping part 3, the main body 1 is provided with a light transmission area 2, and the clamping part 3 is arranged on the main body 1, and the clamping part 3 can be fixedly connected to the camera module 4 so that at least part of the infrared light emitted by the camera module 4 can enter the lens 42 of the camera module 4 through the light transmission area 2; as shown in Figure 1 , the controller has an interface 11 for connecting with the camera module 4, and the interface 11 is arranged on the clamping part 3, as shown in Figure 1 , the light sensing device 10 is arranged in the light transmission area 2 and connected with the controller.

[0067] The controller is the core component of the entire testing device, responsible for managing the operation of the camera module 4, data transmission, and monitoring of the light sensing device 10. It can control the camera module 4, connect with the camera module 4 through the interface 11, and send instructions to control the working state of the camera module 4 (such as starting, stopping, adjusting parameters, etc.), and receive data from the camera module 4 (such as image data, sensor data, etc.). It can also monitor the light sensing device 10, connect with the light sensing device 10, which can detect whether there is infrared light in the transparent area, and monitor the light intensity, wavelength, etc. in the light transmission area 2 in real time, to ensure that the light conditions meet the testing requirements. The controller can also automatically adjust the positions of the reflective component 6, the baffle 9, and the clamping part 3 according to the preset testing program, to optimize the light path. The controller can also process and analyze the received data, and store or transmit the results to external devices (such as computers, servers, etc.). The controller can also provide a user interface through a display screen or external devices, to facilitate users to monitor the testing process, adjust parameters, and view results. The interface 11 is the physical connection point between the controller and the camera module 4, used for transmitting control signals and data. According to different types of camera modules 4 and communication protocols, the interface 11 can have multiple types. For example, USB interface 11 and Ethernet interface 11, etc.

[0068] The light sensing device 10 is a sensor for monitoring the light conditions in the light transmission area 2. Specifically, the light sensing device 10 can be a photodiode, which is a light-sensitive element based on semiconductor materials, capable of generating current or voltage signals when receiving light. The response time of the photodiode is very short, suitable for high-speed measurement. The photodiode has high sensitivity to different wavelengths of light, suitable for wide-band measurement. The light sensing device 10 can also be a photomultiplier tube, which is a high-sensitivity light detection device, capable of generating an amplified signal at very low light intensity. The photomultiplier tube has extremely high sensitivity to very weak light, suitable for low light intensity measurement. The response time of the photomultiplier tube is very short, suitable for high-speed measurement. The light sensing device 10 can also be a photoresistor, which is a light-sensitive element based on semiconductor materials, capable of changing resistance when receiving light. The light sensing device 10 can detect whether there is infrared light in the transparent area, and also monitor the light intensity, wavelength, etc. in the light transmission area 2 in real time, to ensure that the light conditions meet the testing requirements.

[0069] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A test device, characterized by Comprising: a main body, the main body being provided with a light transmission region; a clamping portion, the clamping portion being provided on the main body, the clamping portion being capable of fixing and connecting the camera module so that at least part of the infrared light emitted by the camera module can enter the lens of the camera module through the light transmission region.

2. The testing device according to claim 1, wherein the clamping portion comprises a first clamping portion and a second clamping portion, the first clamping portion and the second clamping portion being respectively provided on both sides of the light transmission region.

3. The testing device according to claim 1, wherein the clamping portion comprises a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate being oppositely provided, the first clamping plate and the second clamping plate being movably connected to the main body so that the first clamping plate and the second clamping plate can move towards each other and away from each other.

4. The testing device according to claim 1, wherein the main body is provided with a receiving groove, an inner wall of the receiving groove surrounding the light transmission region, the clamping portion being capable of fixing the camera module in the light transmission region and making the camera module be at a set distance from the inner wall of the receiving groove.

5. The testing device according to claim 4, wherein the cross section of the receiving groove gradually shrinks from the bottom to the top, the side wall of the receiving groove being curved to form a curved surface from the bottom to the top, and the side wall of the receiving groove being curved in the circumferential direction to surround the light transmission region.

6. The test device of claim 1, wherein, Further comprising: a reflection assembly, the reflection assembly being provided in the light transmission region, a reflection surface of the reflection assembly facing the inside of the light transmission region.

7. The testing device according to claim 6, wherein the reflection assembly comprises a plurality of reflection sheets, the reflection sheets being movably provided in the light transmission region, and the reflection angle and reflection range of the reflection surface being changed by adjusting the reflection sheets.

8. The testing device according to claim 6, wherein the reflection assembly is laid along the edge and the bottom of the light transmission region.

9. The test device of claim 1, wherein, Further comprising: a baffle, the baffle being provided with at least two baffles, the two baffles being oppositely provided in the light transmission region, the camera module being capable of being provided between the two baffles, and the two baffles being capable of moving towards each other and away from each other.

10. A test system, characterized by Comprising: a testing device, a controller and a light sensing device; the testing device comprising: a main body, the main body being provided with a light transmission region; a clamping portion, the clamping portion being provided on the main body, the clamping portion being capable of fixing and connecting the camera module so that at least part of the infrared light emitted by the camera module can enter the lens of the camera module through the light transmission region; the controller having an interface for connecting with the camera module, the interface being provided on the clamping portion; and the light sensing device being provided in the light transmission region and connected with the controller.

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