Test device and test system

Abstract

A test device and a test system. The test device comprises: a humanoid-eye camera, which comprises a cornea-like lens, a light adjustment film and at least one imaging lens, wherein the light adjustment film is located behind the cornea-like lens to simulate the pupil of a human eye, and the imaging lens is located on the light-exiting side of the light adjustment film; a first drive assembly, which is electrically connected to the humanoid-eye camera to drive the humanoid-eye camera to rotate in a vertical direction; and a second drive assembly, which is electrically connected to the humanoid-eye camera to drive the humanoid-eye camera to rotate in a horizontal direction.

Description

A testing device and a testing system

[0001] This application claims priority to Chinese Patent Application No. 202411549223.3, filed with the Chinese Patent Office on October 31, 2024, entitled "A Testing Device and Testing System"; Chinese Patent Application No. 202411549299.6, filed with the Chinese Patent Office on October 31, 2024, entitled "A Testing Device and Testing System for Simulating the Human Eye"; and Chinese Patent Application No. 202411549204.0, filed with the Chinese Patent Office on October 31, 2024, entitled "A Testing Device and Testing System for Simulating the Human Eye", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of vision device technology, and more specifically, to a testing device and a testing system. Background Technology

[0003] In AR / VR / MR head-mounted displays, the optical-mechanical module plays a crucial role. It projects images of the virtual world, which can be two-dimensional or three-dimensional. During wear, the human eye can directly observe the content of the virtual world. The image quality projected by the optical-mechanical module needs to provide the wearer with a comfortable and immersive experience to enable extended wear of the AR / VR / MR head-mounted display. Therefore, testing the imaging quality of the optical-mechanical module in AR / VR / MR head-mounted displays is of paramount importance.

[0004] Currently, large industrial cameras are generally used to test the imaging quality of optical-mechanical modules. However, large industrial cameras cannot intuitively reflect the real experience of the human eye when wearing a head-mounted display.

[0005] In view of this, a new technical solution is needed to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this application is to provide a new technology solution for testing equipment and testing system.

[0007] The test device provided in some embodiments of this application includes a human eye-like camera (1), which includes a corneal-like lens, a dimming film and at least one imaging lens. The dimming film is located behind the corneal-like lens to simulate the pupil of a human eye, and the imaging lens is located on the light-emitting side of the dimming film.

[0008] The first driving component (2) is electrically connected to the human-eye camera (1) to drive the human-eye camera (1) to rotate in the vertical direction;

[0009] The second drive component (3) is electrically connected to the human-eye camera (1) to drive the human-eye camera (1) to rotate in the horizontal direction.

[0010] Optionally,

[0011] The first driving assembly (2) includes a first rotating shaft (20) and a first driving component (21), wherein the first driving component (21) drives the first rotating shaft (20) to rotate, thereby causing the human-eye-like camera (1) to rotate in the vertical direction; and / or,

[0012] The second drive assembly (3) includes a second rotating shaft (30) and a second drive component (31). The second drive component (31) drives the second rotating shaft (30) to rotate, thereby driving the human-eye camera (1) and the first drive assembly (2) to rotate.

[0013] Optionally, the testing device further includes a camera bracket (5), the human eye-like camera (1) is fixedly connected to the camera bracket (5), and the corneal-like lens is disposed away from the camera bracket (5).

[0014] Optionally, the human-eye-like camera has a connection hole (12), and the camera bracket (5) is provided with a connecting post (51), which is embedded in the connection hole (12);

[0015] Preferably, the connecting hole (12) is aligned with the rotation center of the human-eye-like camera (1).

[0016] Optionally, the testing equipment further includes a mounting bracket (6), the camera bracket (5) is connected to the mounting bracket (6) via a first rotating shaft (20) of the first driving component (2), the camera bracket (5) rotates vertically relative to the mounting bracket (6); the second rotating shaft (30) of the second driving component (3) can drive the mounting bracket (6) to rotate horizontally;

[0017] Preferably, the mounting bracket (6) includes a first bracket, and the first rotating shaft (20) passes through the first bracket and is connected to the camera bracket (5).

[0018] Optionally, the connecting column (51) is provided with a first positioning hole (511), and the mounting bracket (6) includes a second bracket, which is provided with a second positioning hole (61) corresponding to the first positioning hole (511);

[0019] The testing equipment also includes a connecting shaft (62), one end of which is rotatably disposed in the second positioning hole (61), and the other end of which is rotatably disposed in the first positioning hole (511). The connecting shaft (62) is collinear with the first rotating shaft (20).

[0020] Preferably, the mounting bracket (6) further includes a third bracket, which is located below the first bracket and the second bracket, and the first bracket and the second bracket are respectively connected to the third bracket; the second rotation shaft (30) of the second drive assembly passes through the third bracket to drive the mounting bracket (6) to rotate.

[0021] Optionally, the human-eye-like camera (1) has two, and the first rotation axis (20) of the first drive assembly (2) connected to the two human-eye-like cameras (1) is collinear;

[0022] Preferably, the testing device further includes a third driving component (4), which is used to adjust the horizontal distance between the two human-eye cameras (1); the horizontal adjustment range of the two human-eye cameras is 50mm to 75mm.

[0023] Preferably, the third driving component (4) includes a base (40) and a base fitting (41). The base (40) has two sliding groove components (42). One of the human-eye camera components is slidably disposed in one of the sliding groove components (42), and the other human-eye camera component is slidably disposed in the other sliding groove component (42) to adjust the horizontal distance between the two human-eye cameras. The base fitting (41) is connected to the human-eye camera component and is slidably disposed in the corresponding sliding groove component (42).

[0024] Optionally, the slide assembly (42) includes a first slide (421) and a second slide (422), the first slide (421) and the second slide (422) are arranged in parallel, one side of the base fitting (41) is located in the first slide (421), and the other side of the base fitting (41) is located in the second slide (422);

[0025] Preferably, the center lines of the two first slide grooves (421) along the sliding direction of the base fitting (41) are on the same horizontal line, and the center lines of the two second slide grooves (422) along the sliding direction of the base fitting (41) are on the same horizontal line; or, the interval between the two first slide grooves (421) is less than or equal to 50 mm, and the interval between the two second slide grooves (422) is less than or equal to 50 mm; each of the first slide grooves (421) has a first end face (4211) furthest from the other first slide groove, the interval between the two first end faces (4211) is greater than 75 mm, and the second slide groove (422) has a second end face (4221) furthest from the other second slide groove, the interval between the two second end faces (4221) is greater than 75 mm.

[0026] Optionally, the light-transmitting area of ​​the dimming film can be adjusted electronically; or,

[0027] The distance between the corneal-like lens and the dimming film is 3.5 mm; or,

[0028] The anterior surface curvature of the corneal-like lens ranges from 7.5mm to 8.0mm, and the posterior surface curvature ranges from 6.5mm to 7.0mm; or,

[0029] Both the front and rear surfaces of the corneal-like lens are provided with functional films, which are used to realize infrared reflection of the human eye-like camera.

[0030] Other embodiments of the present invention provide a testing system, comprising:

[0031] The test device as described in any of the above embodiments is used to acquire image information of the device under test;

[0032] A signal processing device for receiving image information acquired by the test device;

[0033] The result analysis device analyzes the device under test based on the motion data from the human-eye camera and the image information transmitted to it by the signal processing device.

[0034] According to embodiments of this application, by defining the structure of the human-eye-like camera and combining the first and second driving components to achieve rotation of the human-eye-like camera, the human-eye-like camera simulates the rotation of the human eye, thereby improving the accuracy of image analysis of XR display devices by the testing equipment. The testing equipment provided by the embodiments of this application avoids the use of large industrial cameras to test the imaging quality of XR display devices, reduces the cost of image analysis of the device under test, and improves the accuracy of image analysis.

[0035] Other features and advantages of this specification will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only a part of the drawings in this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0037] Figure 1 shows a structural diagram of the test equipment provided in an embodiment of this application.

[0038] Figure 2 shows the connection structure diagram of the human eye-like camera and camera bracket according to an embodiment of this application.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Human-like eye camera; 10. First-class human-like eye camera; 11. Second-class human-like eye camera; 12. Connecting hole;

[0041] 2. First drive assembly; 20. First rotating shaft; 21. First drive component;

[0042] 3. Second drive assembly; 30. Second rotating shaft; 31. Second drive component;

[0043] 4. Third drive component; 40. Base; 41. Base mating part; 411. Protrusion;

[0044] 42. Slide assembly; 421. First slide; 422. Second slide; 4211. First end face; 4221. Second end face;

[0045] 5. Camera bracket; 51. Connecting post; 511. First positioning hole;

[0046] 6. Mounting bracket; 61. Second positioning hole; 62. Connecting shaft; Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0048] This application provides a testing device. This testing device is used to perform image analysis on XR display devices (extended reality, including AR augmented reality, VR virtual reality, etc.). Exemplarily, this testing device can be used to analyze the image quality of XR display devices, and the analysis items include, but are not limited to, distortion testing, MTF modulation, contrast, color difference, and brightness detection of the binocular fused image.

[0049] Referring to Figure 1, the test device includes a human-eye-like camera 1. The human-eye-like camera 1 includes a corneal-like lens, a dimming film, and at least one imaging lens. The dimming film is located behind the corneal-like lens to simulate the pupil of a human eye, and the imaging lens is located on the light-emitting side of the dimming film.

[0050] The first driving component 2 is electrically connected to the human-eye-like camera 1 to drive the human-eye-like camera 1 to rotate in the vertical direction. The second driving component 3 is electrically connected to the human-eye-like camera 1 to drive the human-eye-like camera 1 to rotate in the horizontal direction.

[0051] In this embodiment, the testing device includes a human-eye-like camera 1, which captures the content or images displayed by the XR display device by simulating the imaging optical path of the human eye. By simulating the perspective of the human eye, the display effect and user experience of the device are accurately evaluated.

[0052] Optionally, to ensure that the rotation trajectory of the human-eye-like camera 1 is consistent with the rotation trajectory of the human eye, for example, the position of the rotation center of the human-eye-like camera 1 is consistent with the position of the rotation center of the human eye, so that the human-eye-like camera 1 simulates the rotation of the human eyeball. For example, along the optical axis, the distance between the rotation center of the human-eye-like camera 1 and the corneal-like lens at the foremost end of the human-eye-like camera 1 can be limited to 13mm to 15mm, to meet the distance between the rotation center of most wearers' eyes and the anterior surface of the cornea. Preferably, the distance between the rotation center of the human-eye-like camera 1 and the corneal-like lens at the foremost end of the human-eye-like camera 1 is 13.5mm.

[0053] The following is a detailed description of the structure of the human-eye-like camera 1:

[0054] The human-eye-like camera 1 provided in this application embodiment is designed to mimic the structure of the human eye and aims to obtain image information of the XR display device from different viewing angles by simulating the rotation of the human eyeball.

[0055] The human-eye-like camera 1 mainly includes a corneal-like lens, a dimming film, and an imaging lens. The type and parameters of the imaging lens can be adaptively adjusted according to the image information capture capability of the human-eye-like camera 1. This embodiment does not impose any particular limitations on the parameters of the imaging lens.

[0056] The corneal-like lens is the foremost part of the human-eye-like camera 1. Its design and function are similar to the cornea of ​​the human eye. The cornea primarily refracts light and focuses it onto the retina. Therefore, the corneal-like lens also performs a similar optical refraction function, helping to adjust the light entering the human-eye-like camera 1.

[0057] The dimming diaphragm, located behind the corneal-like lens, functions to mimic the pupil of the human eye. The pupil is a crucial part of the eye, and its size is adjusted to control the amount of light entering the eye. Similarly, the dimming diaphragm can adjust its light transmittance as needed, thereby controlling the intensity of light entering the camera. This design helps the camera maintain optimal image quality under various lighting conditions.

[0058] The imaging lens is located on the light-emitting side of the dimming film, i.e., behind the dimming film. The main function of the imaging lens is to focus the light, after being adjusted by the corneal-like lens and the dimming film, onto an imaging plane, thereby generating a clear image. This is similar to the lens in the human eye, which focuses light onto the retina to form visual perception. When the human-eye-like camera 1 includes one imaging lens, the performance parameters of this imaging lens satisfy the performance requirements of the human eye's lens. When the human-eye-like camera 1 includes multiple imaging lenses, the combined performance parameters of this imaging lens group satisfy the performance requirements of the human eye's lens.

[0059] Furthermore, to further enable the human-eye-like camera 1 to simulate the rotation of a human eye, the rotation of the human-eye-like camera 1 is driven by a first driving component 2 and a second driving component 3. Specifically, the first driving component 2 drives the human-eye-like camera 1 to rotate vertically to adjust the pitch angle of the human-eye-like camera 1. The second driving component 3 drives the human-eye-like camera 1 to rotate horizontally to adjust the horizontal rotation angle of the human-eye-like camera 1.

[0060] In other words, the first drive component 2 is used to adjust the pitch angle of the human-eye camera 1, that is, the rotation angle of the human-eye camera 1 in the vertical direction, to simulate the image seen by the wearer when looking up or down. The second drive component 3 is used to adjust the rotation angle of the human-eye camera 1 in the horizontal direction, to simulate the image seen by the wearer in a horizontal view.

[0061] Therefore, in this embodiment, by defining the structure of the human-eye-like camera 1 and combining the first driving component 2 and the second driving component 3 to realize the human-eye-like camera 1 to simulate the rotation of the human eye, the accuracy of the test equipment in analyzing the images of the XR display device is improved.

[0062] In one embodiment, referring to FIG1, the first driving component 2 includes a first rotating shaft 20 and a first driving component 21. The first driving component 21 drives the first rotating shaft 20 to rotate, thereby causing the human-eye-like camera 1 to rotate in the vertical direction.

[0063] In this embodiment, the first driving component 2 includes a first rotating shaft 20 and a first driving component 21. The first rotating shaft 20 is directly or indirectly connected to the human-eye-like camera 1. The first driving component 21 is a device that provides rotational power, and the first driving component 21 can be a driver of a motor, stepper motor, servo motor, or similar type.

[0064] The first drive component 21 is connected to the first rotating shaft 20 through a connector (such as a coupling, gear, etc.). When the first drive component 21 is started, it outputs rotational force, which is transmitted to the first rotating shaft 20 through the connector, thereby driving the human eye-like camera 1 to rotate.

[0065] In one embodiment, referring to FIG1, the second driving component 3 includes a second rotating shaft 30 and a second driving component 31. The second driving component 31 drives the second rotating shaft 30 to rotate, thereby driving the human-eye-like camera 1 and the first driving component 2 to rotate.

[0066] In this embodiment, the second drive assembly 3 includes a second rotating shaft 30 and a second drive component 31. The second rotating shaft 30 is directly or indirectly connected to the human-eye-like camera 1. The second drive component 31 is a device that provides rotational power, and the second drive component 31 can be a driver of a motor, stepper motor, servo motor, or similar type.

[0067] The second drive component 31 is connected to the second rotating shaft 30 through a connector (such as a coupling, gear, etc.). When the second drive component 31 is started, it outputs rotational force, which is transmitted to the second rotating shaft 30 through the connector, thereby driving the human eye-like camera 1 to rotate.

[0068] In a further embodiment, referring to FIG1, the first rotating shaft 20 is located above the second rotating shaft 30 and the first rotating shaft 20 and the second rotating shaft 30 are arranged perpendicularly.

[0069] In this embodiment, the first rotating shaft 20 is located above the second rotating shaft 30 and the two are arranged perpendicularly. When the first rotating shaft 20 and / or the second rotating shaft 30 drive the human-eye camera 1 to rotate around the rotation center of the human-eye camera 1, the human-eye camera 1 can be rotated in multiple directions.

[0070] Furthermore, the axis of the first rotating shaft 20 and the axis of the second rotating shaft 30 intersect at the rotation center of the human-eye-like camera 1.

[0071] In this embodiment, the axis of the first rotation axis 20 and the rotation center of the human-eye camera 1 are collinear, as are the axis of the second rotation axis 30 and the rotation center of the human-eye camera 1. This achieves the goal of the axes of the first rotation axis 20 and the second rotation axis 30 intersecting at the rotation center of the human-eye camera 1. This design, by mimicking the physiological structure of the human eye, achieving consistency in the rotation range, and improving rotation accuracy, makes the rotation trajectory of the human-eye camera 1 closer to the natural rotation of the human eye.

[0072] In one embodiment, referring to Figures 1 and 2, the test device simulating a human eye further includes a camera bracket 5, the human-eye-like camera 1 is fixedly connected to the camera bracket 5, and the corneal-like lens is disposed away from the camera bracket 5.

[0073] In this embodiment, the camera bracket 5 serves as an important component for supporting and fixing the human-eye camera 1, ensuring the stability and accuracy of the human-eye camera 1 during the testing process.

[0074] The human-eye-like camera 1 is used to simulate the visual function of the human eye. The human-eye-like camera 1 may contain complex components such as sensors and image processing algorithms for capturing and processing image information. These components can be built into the camera bracket 5.

[0075] In this embodiment, by introducing the camera bracket 5, the testing device can simulate an imaging effect that is closer to that of the human eye, thereby improving the accuracy and reliability of image analysis.

[0076] When the humanoid eye camera 1 is mounted on the camera bracket 5, the first rotating shaft 20 can be connected to the camera bracket 5, and the first rotating shaft 20 drives the camera bracket 5 and the humanoid eye camera 1 to rotate in the vertical direction.

[0077] In one embodiment, referring to FIG2, the human-eye-like camera 1 has a connection hole 12, and the camera bracket 5 is provided with a connecting post 51, which is embedded in the connection hole 12.

[0078] In this embodiment, in order to connect the human-eye camera 1 and the camera bracket 5, a connection hole 12 is provided on the human-eye camera 1, and correspondingly, a connection post 51 is provided on the camera bracket 5. The camera bracket 5 and the human-eye camera 1 are connected together by the cooperation of the connection hole 12 and the connection post 51.

[0079] For example, referring to FIG2, a plurality of connection holes 12 are provided in the circumference of the human eye-like camera 1. Correspondingly, a plurality of connection posts 51 are provided in the circumference of the camera bracket 5. The reliability of the connection between the two is improved by the cooperation of the connection posts 51 and the connection holes 12.

[0080] For example, the connecting posts 51 on the camera bracket 5 typically have a certain length and diameter to ensure they can be securely inserted into the connecting holes 12 and provide sufficient support. The surface of the connecting posts 51 can be specially treated, such as with threads, chamfers, or coatings, to enhance the stability and durability of the connection.

[0081] In addition, a clearance portion can be provided between adjacent connecting columns 51 to prevent the design of the camera bracket 5 from affecting the image capture effect of the human eye camera 1.

[0082] It should be noted that, in addition to simple embedding, there may be additional fixing mechanisms, such as screws, clips or locking devices, between the connecting hole 12 and the connecting post 51 to ensure that the camera does not loosen during rotation or use.

[0083] In a further embodiment, referring to FIG2, the connection hole 12 is aligned with the rotation center of the human eye-like camera 1.

[0084] In this embodiment, a connection hole 12 is provided on the human-eye camera 1. By aligning the connection hole 12 with the rotation center of the human-eye camera 1, the rotation angle and range of the human-eye camera 1 can be precisely controlled, thereby meeting specific testing requirements.

[0085] In one embodiment, referring to FIG1, the test device simulating a human eye further includes a mounting bracket 6, the camera bracket 5 is connected to the mounting bracket 6 via the first rotation shaft 20 of the first drive component 2, and the camera bracket 5 rotates vertically relative to the mounting bracket 6; the second rotation shaft 30 of the second drive component 3 can drive the mounting bracket 6 to rotate horizontally.

[0086] In this embodiment, the camera bracket 5 can not only rotate relative to the mounting bracket 6 in the vertical direction, but the entire mounting bracket 6 (including the human eye-like camera 1, the camera bracket 5 and the first rotating shaft 20 connected to the camera bracket 5) can also rotate in the horizontal direction via the second rotating shaft 30.

[0087] Specifically, the camera bracket 5 is connected to the mounting bracket 6 via a first rotating shaft 20, allowing the camera bracket 5 to rotate vertically relative to the mounting bracket 6. This vertical rotation enables the human-eye-like camera 1 to simulate the changes in the human eye's viewing angle in the vertical direction, thereby more accurately evaluating the performance of the display device at different viewing angles.

[0088] The second rotating shaft 30 is connected to the mounting bracket 6, enabling the entire mounting bracket 6 (including the human-eye-like camera 1, the camera bracket 5, and the first rotating shaft 20) to rotate horizontally. This horizontal rotation allows the testing equipment to simulate changes in the human eye's horizontal viewing angle, further improving the accuracy and comprehensiveness of the test. By adjusting the horizontal rotation angle, users can test the display effect of the display device at different horizontal viewing angles.

[0089] In one embodiment, referring to FIG1, the mounting bracket 6 includes a first bracket, and the first rotating shaft 20 passes through the first bracket and is connected to the camera bracket 5.

[0090] Specifically, in the test equipment simulating the human eye, the mounting bracket 6 is an important structure that supports and fixes components such as the camera bracket 5. The mounting bracket 6 includes a first bracket, and a first rotating shaft 20 passes through the first bracket and connects to the camera bracket 5. The first rotating shaft 20 drives the camera bracket 5 and the human-eye-like camera 1 to rotate in the vertical direction.

[0091] In one embodiment, referring to FIG1, the connecting column 51 is provided with a first positioning hole 511, and the mounting bracket 6 includes a second bracket, the second bracket being provided with a second positioning hole 61 corresponding to the first positioning hole 511;

[0092] The testing equipment also includes a connecting shaft 62, one end of which is rotatably disposed in the second positioning hole 61, and the other end of which is rotatably disposed in the first positioning hole 511. The connecting shaft 62 is collinear with the first rotating shaft 20.

[0093] Specifically, in the testing equipment, the connecting column 51, as part of the camera bracket 5, is connected to the mounting bracket 6 (specifically the second bracket) via the connecting shaft 62, enabling the camera bracket 5 to rotate vertically relative to the mounting bracket 6. Simultaneously, the first rotating shaft 20 also participates in this connection structure, and is collinear with the connecting shaft 62, jointly achieving the rotation function of the camera bracket 5 relative to the mounting bracket 6.

[0094] The connecting shaft 62 is a key component that enables the rotatable connection between the camera bracket 5 and the mounting bracket 6. One end of the connecting shaft 62 is inserted into and positioned in the second positioning hole 61, and the other end is inserted into and positioned in the first positioning hole 511. Since the connecting shaft 62 is rotatable in both holes, the camera bracket 5 is allowed to rotate relative to the mounting bracket 6 under the connection of the connecting shaft 62.

[0095] For example, the two ends of the connecting shaft 62 can be rotatably connected to the positioning hole through structures such as bearings and bushings. This connection method ensures that the camera bracket 5 can rotate smoothly relative to the mounting bracket 6.

[0096] Furthermore, in this embodiment, the first rotating shaft 20 and the connecting shaft 62 are collinear. This collinearity means that both extend along the same straight line, jointly enabling the camera bracket 5 to rotate relative to the mounting bracket 6. This design ensures the stability and accuracy of the rotation.

[0097] In a further embodiment, referring to FIG2, the first positioning hole 511 is aligned with the rotation center of the human-eye-like camera 1.

[0098] In this embodiment, a first positioning hole 511 is provided on the connecting column 51 of the camera bracket 5. The first positioning hole 511 is aligned with the rotation center of the human-eye camera 1, which can ensure the stability of the human-eye camera 1 during rotation, thereby simulating the rotation of the human eye.

[0099] In one embodiment, referring to FIG1, the mounting bracket 6 further includes a third bracket, which is located below the first bracket and the second bracket, and the first bracket and the second bracket are respectively connected to the third bracket; the second rotating shaft 30 passes through the third bracket to drive the mounting bracket 6 to rotate.

[0100] In this embodiment, the mounting bracket 6 includes not only the first and second brackets, but also a third bracket as an additional support structure. The third bracket is located below and connected to the first and second brackets, forming a stable support system. Simultaneously, the second rotating shaft 30 passes through the third bracket, driving the entire mounting bracket 6 to rotate.

[0101] When the second rotating shaft 30 is subjected to an external force, the second rotating shaft 30 can drive the entire mounting bracket 6 (including the first bracket, the second bracket, the camera bracket 5, the human eye camera 1, the first rotating shaft 20, and other components) to rotate in the horizontal direction.

[0102] For example, the connection between the second rotating shaft 30 and the third bracket can be achieved through structures such as bearings and bushings to ensure smooth and stable rotation.

[0103] In one embodiment, referring to FIG1, the human-eye-like camera 1 has two, and the two first rotation axes 20 connected to the two human-eye-like cameras 1 are arranged collinearly.

[0104] In this embodiment, the two first rotation axes 20 connected to the two human-eye-like cameras 1 are designed to be collinear. This means that the two rotation axes extend in the same straight line, and the rotation centers of the two human-eye-like cameras 1 are collinearly arranged.

[0105] The collinear arrangement of the first rotation axis 20 ensures that the two cameras maintain a consistent center of rotation during rotation, thus simulating the binocular vision characteristics of the human eye. This design helps reduce the offset and errors of the two human-eye-like cameras 1 during rotation, improving the accuracy and reliability of image analysis.

[0106] In one embodiment, referring to FIG1, there are two human-eye-like cameras 1, which are parallel to the two second rotation axes 30 connected to the two human-eye-like cameras 1 respectively.

[0107] In this embodiment, the parallel arrangement of the second rotation axis 30 makes it easier for the two human-eye cameras 1 to achieve synchronous adjustment, and the parallel arrangement of the two second rotation axes 30 makes the rotation of the human-eye camera 1 more in line with the rotation trajectory of the human eye.

[0108] For example, the test device simulating a human eye includes two independently configured human-eye-like camera components. Two independent sliding groove components 42 are provided on the base 40, each designed to cooperate with its corresponding human-eye-like camera component. These two sliding groove components 42 are arranged parallel to each other on the base 40 to ensure that the two human-eye-like camera components can slide horizontally. For example, by moving the positions of the two human-eye-like camera components within their respective sliding groove components 42, the distance between the two human-eye-like cameras can be precisely adjusted. This adjustment can be manual or automated using some mechanical or electric device.

[0109] In some embodiments, the horizontal adjustment range of the two human-eye-like cameras is 50mm to 75mm. In this embodiment, the interpupillary distance (i.e., the distance between the pupils of both eyes) varies from person to person. By setting the horizontal distance between the two human-eye-like cameras 1 to 50mm to 75mm, this range covers the interpupillary distance range of most people. Therefore, this testing device can more accurately simulate the visual experience of wearers with different interpupillary distances when using XR display devices.

[0110] In one embodiment, referring to FIG1, the test device further includes a third driving component 4 for adjusting the horizontal distance between the two human-eye-like cameras 1.

[0111] In this embodiment, the testing equipment includes a first type of human eye camera 10 and a second type of human eye camera 11, and the horizontal spacing between the first type of human eye camera 10 and the second type of human eye camera 11 is adjustable.

[0112] Specifically, by adjusting the horizontal distance between the first type of human eye camera 10 and the second type of human eye camera 11 using the third driving component 4, the testing device can simulate wearers with different interpupillary distances to test the image performance of the XR display device under various conditions. In other words, the testing device can test and analyze images acquired by the two human eye cameras at different distances.

[0113] In one embodiment, the third drive component 4 includes a base 40 and a base mating part 41, the base mating part 41 being connected to the second drive component 3;

[0114] The base 40 has a sliding groove assembly 42, and the base mating part 41 is slidably disposed within the sliding groove assembly 42.

[0115] Specifically, the third drive component 4 includes a base 40 and a base mating part 41, the base mating part 41 being connected to the second drive component 3; the base 40 is provided with a sliding groove component 42, and the base mating part 41 is slidably disposed within the sliding groove component 42 to adjust the horizontal spacing between the two cameras.

[0116] Since the testing equipment includes two human-eye-like cameras 1, the base 40 has two corresponding sliding groove components 42, and the horizontal distance between the two cameras is adjusted by sliding the two base mating parts 41.

[0117] In a more specific embodiment, each slide assembly 42 includes a first slide 421 and a second slide 422, the first slide 421 and the second slide 422 being parallel to the optical axis of the human-eye camera 1. The center lines of the two first slides 421 are collinearly arranged in the sliding direction, and the center lines of the two second slides 422 are also collinearly arranged in the sliding direction.

[0118] One side of the base fitting 41 is placed in the first groove 421, while the other side is embedded in the second groove 422. This double-groove fitting design significantly enhances the stability and accuracy of the base fitting 41 during the sliding process.

[0119] The distance between the two first slide grooves 421 is less than or equal to 50 mm, and the distance between the two second slide grooves 422 is less than or equal to 50 mm;

[0120] Each first groove 421 has a first end face 4211 that is furthest from the other first groove 421, and the distance between the two first end faces 4211 is greater than 75 mm. Each second groove 422 has a second end face 4221 that is furthest from the other second groove 422, and the distance between the two second end faces 4221 is greater than 75 mm.

[0121] In a more specific embodiment, the structure of the base fitting 41 is defined. Referring to Figure 1, the base fitting 41 is U-shaped and inverted onto the second drive assembly 3. One side of the base fitting 41 is disposed within the first sliding groove 421, and the other side is disposed within the second sliding groove 422. In this embodiment, the base fitting 41 is designed as a "U"-shaped structure. The "U"-shaped base fitting 41 is inverted onto the human-eye camera assembly. The opening of the "U"-shaped structure can easily accommodate part of the human-eye camera assembly, making the connection between the human-eye camera assembly and the base fitting 41 more secure and reliable. The base fitting 41 is installed onto the human-eye camera assembly in an inverted manner. This means that the opening of the base fitting 41 faces downward, and the second drive component 31 of the human-eye camera assembly is placed inside the opening. The connection between the second drive assembly 3 and the base fitting 41 is achieved through the second rotating shaft 30. This installation method not only ensures a tight fit between the human-eye camera assembly and the base fitting 41, but also makes the entire structure more compact and stable.

[0122] Each side of the base fitting 41 has a first region and a second region arranged vertically. The second region has a protrusion 411 that protrudes beyond the edge of the slide groove assembly 42. In this way, as the base fitting 41 slides within the slide groove, the protrusion 411 and the edge of the slide groove act as a limit, preventing the base fitting 41 from tilting or shifting during the sliding process.

[0123] In this embodiment, the vertical surface of the base fitting 41 has a first region located away from the slide groove assembly 42 and a second region located close to the slide groove assembly 42. The protrusion 411 is formed on the second region. The protrusion 411 and the edge of the slide groove play a limiting role, preventing the base fitting 41 from tilting or shifting during the sliding process.

[0124] In one embodiment, referring to FIG1, the vertical surface of the base mating member 41 is perpendicular to the optical axis of the corresponding human-eye camera 1.

[0125] In this embodiment, since the optical axis of the humanoid eye camera 1 is perpendicular to the vertical surface of the base mating member 41, the humanoid eye camera 1 can always capture images within a predetermined range during the sliding process without affecting the accuracy of the test due to optical axis deflection. Furthermore, the vertical design helps reduce the impact of vibrations or external forces that may occur during the sliding process on the humanoid eye camera 1, thereby improving the stability of the test.

[0126] In one embodiment, the base 40 is provided with a length scale.

[0127] In this embodiment, the main purpose of providing a length scale on the base 40 is to offer precise measurement and positioning capabilities. The scale allows users to visually understand the specific position of the humanoid camera assembly on the base 40, and to accurately determine the horizontal distance between the two humanoid cameras 1.

[0128] In one embodiment, the light-transmitting area of ​​the dimming film is adjusted electronically.

[0129] Specifically, the pupil of the human eye can automatically adjust its size according to the intensity of light, thereby maintaining a relatively stable amount of light transmission. When the light is too strong, the pupil will constrict; while when the light is dim, the pupil will dilate accordingly.

[0130] In this embodiment, by controlling the light-transmitting area of ​​the dimming film electronically, the amount of light transmitted can be precisely adjusted, thereby simulating the response of the human eye pupil under different lighting conditions.

[0131] Dimming films are typically made by injecting a liquid crystal / polymer hybrid material between two transparent conductive films. In the absence of an electric field, the dimming film is opaque. When an alternating current is applied, the liquid crystal molecules align in an ordered manner, and the dimming film transitions from the opaque (OFF) state to the transparent (ON) state. Through the application of an electric field, rapid transitions between the ON and OFF states can be achieved.

[0132] Therefore, dimming films can simulate this light-sensing adaptive adjustment mechanism through electronic control. When the external light changes, the control system can sense and adjust the voltage or current applied to the dimming film, thereby changing the size and shape of its light-transmitting area and achieving precise control over the amount of light transmitted.

[0133] In one embodiment, the distance between the corneal-like lens and the dimming film is 3.5 mm.

[0134] In this embodiment, the distance between the corneal-like lens and the dimming film is defined to simulate the distance between the cornea and pupil of the human eye. This defined distance is crucial to ensuring that the human-eye-like camera can accurately capture and perceive light, and to achieve a visual experience similar to that of the human eye.

[0135] It should be noted that this distance is typically determined based on studies of human eye anatomy, particularly precise measurements of the distance between the cornea and pupil. By applying this data to the design of human-eye-like cameras, it is possible to ensure that the camera's structure is structurally closer to that of the human eye.

[0136] In one embodiment, the anterior surface curvature of the corneal-like lens ranges from 7.5 mm to 8.0 mm, and the posterior surface curvature ranges from 6.5 mm to 7.0 mm.

[0137] In this embodiment, the curvature design of the corneal-like lens has a significant impact on light focusing and image quality. By selecting a curvature range similar to that of the human cornea, the human-eye-like camera can more closely approximate the perception of the human eye, ensuring that light is correctly focused when passing through the lens, thereby forming a clear image.

[0138] Preferably, the anterior surface curvature of the corneal lens is 7.8 mm, and the posterior surface curvature of the corneal lens is 6.7 mm.

[0139] More preferably, the focal length of the corneal lens can be -154.057mm, the refractive index of the corneal lens can be limited to 1.5167, the Abbe number can be 64.199, and the material of the corneal lens is glass (H-K9L).

[0140] In one embodiment, both the front and rear surfaces of the corneal-like lens are provided with functional films to achieve infrared reflection of the human eye-like camera.

[0141] In this embodiment, the addition of a functional film significantly improves the performance of the human-eye-like camera in the infrared spectral range. This enables the camera to capture clear images even in low-light conditions or nighttime environments.

[0142] For example, the material of the functional membrane is magnesium fluoride, and a specific proportion of infrared light reflection can be achieved by controlling the thickness of the membrane layer.

[0143] Secondly, embodiments of this application provide a testing system. The testing system includes:

[0144] The test equipment as described in the first aspect is used to acquire image information of the device under test;

[0145] A signal processing device for receiving image information acquired by the test device;

[0146] The result analysis device analyzes the device under test based on the motion data from the human-eye camera and the image information transmitted to it by the signal processing device.

[0147] In this embodiment, the test device simulating the human eye is used to simulate the wearing effect of a wearer wearing an XR display device (the device under test).

[0148] The signal processing equipment is responsible for receiving image information from the test equipment. This equipment may include an FPGA module. After receiving the image information, the signal processing equipment preprocesses it, including but not limited to noise reduction, enhancement, and compression. These processing steps help improve image quality and provide more valuable data for subsequent analysis.

[0149] The results analysis device utilizes motion data from a human-eye-like camera 1 and image information transmitted by a signal processing device to perform a comprehensive and in-depth analysis of the device under test. Through analysis, the results analysis device can evaluate issues related to the device's performance, user experience, and compatibility. For example, the results analysis device can be an external device (such as a computer) or a built-in module of the test device. By simulating the human visual system, this system can more realistically reflect the performance of the device under test in actual use.

[0150] The various embodiments in this specification are described in parallel or progressive manner. Each embodiment focuses on its differences from other embodiments, and the same or similar parts between the embodiments can be referred to mutually. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be found in the method section.

[0151] Those skilled in the art will also understand that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of each example have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0152] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be implemented directly by hardware, a software module executed by a processor, or a combination of both. The software module can be located in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.

[0153] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A testing device, characterized in that, include: A human eye-like camera (1) includes a corneal-like lens, a dimming film, and at least one imaging lens, wherein the dimming film is located behind the corneal-like lens to simulate the pupil of a human eye, and the imaging lens is located on the light-emitting side of the dimming film. The first driving component (2) is electrically connected to the human-eye camera (1) to drive the human-eye camera (1) to rotate in the vertical direction; The second drive component (3) is electrically connected to the human-eye camera (1) to drive the human-eye camera (1) to rotate in the horizontal direction.

2. The testing equipment according to claim 1, characterized in that, The first driving component (2) includes a first rotating shaft (20) and a first driving component (21). The first driving component (21) drives the first rotating shaft (20) to rotate, thereby driving the human eye-like camera (1) to rotate in the vertical direction. And / or, The second drive assembly (3) includes a second rotating shaft (30) and a second drive component (31). The second drive component (31) drives the second rotating shaft (30) to rotate, thereby driving the human-eye camera (1) and the first drive assembly (2) to rotate.

3. The testing equipment according to claim 1 or 2, characterized in that, The testing equipment also includes a camera bracket (5), the human eye-like camera (1) is fixedly connected to the camera bracket (5), and the corneal-like lens is positioned away from the camera bracket (5).

4. The testing equipment according to any one of claims 1-3, characterized in that, The human-eye-like camera has a connection hole (12), and the camera bracket (5) is provided with a connecting post (51), which is embedded in the connection hole (12). Preferably, the connecting hole (12) is aligned with the rotation center of the human-eye-like camera (1).

5. The testing equipment according to any one of claims 1-4, characterized in that, The testing equipment also includes a mounting bracket (6), the camera bracket (5) is connected to the mounting bracket (6) through the first rotation shaft (20) of the first drive assembly (2), the camera bracket (5) rotates in the vertical direction relative to the mounting bracket (6); the second rotation shaft (30) of the second drive assembly (3) can drive the mounting bracket (6) to rotate in the horizontal direction; Preferably, the mounting bracket (6) includes a first bracket, and the first rotating shaft (20) passes through the first bracket and is connected to the camera bracket (5).

6. The testing equipment according to any one of claims 1-5, characterized in that, The connecting column (51) is provided with a first positioning hole (511), and the mounting bracket (6) includes a second bracket, which is provided with a second positioning hole (61) corresponding to the first positioning hole (511). The testing equipment also includes a connecting shaft (62), one end of which is rotatably disposed in the second positioning hole (61), and the other end of which is rotatably disposed in the first positioning hole (511). The connecting shaft (62) is collinear with the first rotating shaft (20). Preferably, the mounting bracket (6) further includes a third bracket, which is located below the first bracket and the second bracket, and the first bracket and the second bracket are respectively connected to the third bracket; the second rotation shaft (30) of the second drive assembly passes through the third bracket to drive the mounting bracket (6) to rotate.

7. The testing equipment according to any one of claims 1-6, characterized in that, The human-eye-like camera (1) has two, and the first rotation axis (20) of the first drive assembly (2) connected to the two human-eye-like cameras (1) is collinear; Preferably, the testing device further includes a third driving component (4), which is used to adjust the horizontal distance between the two human-eye cameras (1); the horizontal adjustment range of the two human-eye cameras is 50mm to 75mm. Preferably, the third driving component (4) includes a base (40) and a base fitting (41). The base (40) has two sliding groove components (42). One of the human-eye camera components is slidably disposed in one of the sliding groove components (42), and the other human-eye camera component is slidably disposed in the other sliding groove component (42) to adjust the horizontal distance between the two human-eye cameras. The base fitting (41) is connected to the human-eye camera component and is slidably disposed in the corresponding sliding groove component (42).

8. The testing apparatus according to any one of claims 1-7, characterized in that, The slide assembly (42) includes a first slide (421) and a second slide (422), the first slide (421) and the second slide (422) are arranged in parallel, one side of the base fitting (41) is located in the first slide (421), and the other side of the base fitting (41) is located in the second slide (422); Preferably, the center lines of the two first slide grooves (421) along the sliding direction of the base fitting (41) are on the same horizontal line, and the center lines of the two second slide grooves (422) along the sliding direction of the base fitting (41) are on the same horizontal line; or, the interval between the two first slide grooves (421) is less than or equal to 50 mm, and the interval between the two second slide grooves (422) is less than or equal to 50 mm; each of the first slide grooves (421) has a first end face (4211) furthest from the other first slide groove, the interval between the two first end faces (4211) is greater than 75 mm, and the second slide groove (422) has a second end face (4221) furthest from the other second slide groove, the interval between the two second end faces (4221) is greater than 75 mm.

9. The testing equipment according to any one of claims 1-8, characterized in that, The light-transmitting area of ​​the dimming film can be adjusted electronically; or, The distance between the corneal-like lens and the dimming film is 3.5 mm; or, The anterior surface curvature of the corneal-like lens ranges from 7.5mm to 8.0mm, and the posterior surface curvature ranges from 6.5mm to 7.0mm; or, Both the front and rear surfaces of the corneal-like lens are provided with functional films, which are used to realize infrared reflection of the human eye-like camera.

10. A testing system, characterized in that, include: The testing device as described in any one of claims 1-9 is used to acquire image information of the device under test; A signal processing device for receiving image information acquired by the test device; The result analysis device analyzes the device under test based on the motion data from the human-eye camera and the image information transmitted to it by the signal processing device.

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