Optical performance testing device

Abstract

The invention relates to an optical performance testing device which comprises an optical platform, a glass support, an HUD clamp and a testing platform deck. One end of the glass support is rotatably connected with the optical platform, a plurality of soft supporting shaft assemblies are arranged on the glass support, and the soft supporting shaft assemblies are used for supporting and being connected with a windshield; the HUD clamp is arranged between the glass support and the optical platform, and the test carrying platform is movably arranged on the optical platform. The optical performance testing device can adapt to various HUD products, the position of the testing platform deck can be flexibly adjusted in multiple directions, the angle of the windshield support can also be finely adjusted, a tester can conveniently and rapidly configure the testing platform deck according to different testing requirements, and the testing efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of optical performance testing devices, and in particular to an optical performance testing device. Background Art

[0002] The optical performance testing of Heads Up Displays (HUDs) requires high precision. To avoid changing the original position of the debugged test equipment, most of the optical performance testing equipment currently available on the market is targeted at a single HUD product, resulting in poor compatibility and an inability to meet the needs of frequently changing test sample types. Furthermore, current testing is primarily conducted in a hidden environment, and there is a lack of corresponding solutions for outdoor performance testing of HUD products. Summary of the Invention

[0003] In order to solve the problem that the HUD optical performance test device in the prior art is designed for a single HUD product, has poor compatibility, and cannot meet the needs of frequent changes in test sample types.

[0004] The present application provides an optical performance testing device, comprising an optical platform, a glass bracket, a HUD fixture, and a test platform;

[0005] One end of the glass bracket is rotatably connected to the optical platform, and the glass bracket is provided with a plurality of flexible support shaft assemblies, and the plurality of flexible support shaft assemblies are used to support and connect with the windshield;

[0006] The HUD fixture is arranged between the glass support and the optical platform, and the test platform is movably arranged on the optical platform.

[0007] Furthermore, at least two spaced apart fixing seats are provided at one end of the optical platform, a rotation axis is provided between the two fixing seats, a center line of the rotation axis is parallel to the surface of the optical platform, and the rotation axis is hinged to the glass bracket.

[0008] Furthermore, the rotating shaft is connected to the glass support via a rotating bearing, the inner ring of the rotating bearing is fixedly connected to the rotating shaft, and the outer ring of the rotating bearing is used to be fixedly connected to the glass support.

[0009] Furthermore, a plurality of positioning holes are provided on the outer ring of the rotary bearing, and the angle between the glass support and the optical platform can be adjusted by inserting positioning pins.

[0010] Furthermore, the glass support comprises at least two connected support crossbeams and at least two connected support longitudinal beams, and a plurality of the soft support shaft assemblies are evenly arranged on the support crossbeams and / or the support longitudinal beams.

[0011] Furthermore, the soft support shaft assembly includes a support shaft and an adjustment assembly;

[0012] One end of the support shaft is connected to the glass bracket through an adjusting component, and the other end of the support shaft is provided with a fixing piece, and the fixing piece is used to be fixedly connected to the windshield.

[0013] Furthermore, the adjustment assembly includes an elastic support sleeve and an adjustment nut;

[0014] One end of the support shaft is threadedly connected to the support crossbeam and / or the support longitudinal beam, and the elastic support sleeve is sleeved on the outside of the support shaft; the adjusting nut is threadedly connected to the support shaft and is used to rotate and adjust the compression degree of the elastic support sleeve.

[0015] Furthermore, the adjustment assembly includes an elastic member and an adjustment slot, the adjustment slot is arranged on the supporting crossbeam and / or supporting longitudinal beam of the glass bracket, one end of the support shaft is clamped with the adjustment slot through a clamping joint, and the elastic member is arranged below the support shaft.

[0016] Furthermore, the test platform includes a movable base and a movable carrying platform connected to each other, and the movable base is used to drive the movable carrying platform to move in the X-axis direction, the Y-axis direction and the Z-axis direction.

[0017] Furthermore, it includes a light source simulation device, and the light source simulation device adopts a surface light source.

[0018] The implementation of the embodiments of the present application has the following beneficial effects:

[0019] The test device of this application ensures the position and angle accuracy of the windshield during the test through the angle adjustment of the glass bracket and the elastic support of the soft support shaft assembly, thereby improving the accuracy and reliability of the test results, reducing the test errors caused by inaccurate windshield position or angle deviation, and improving the repeatability and consistency of the test. It can adapt to a variety of HUD head-up display products, and through the adjustable HUD fixture and windshield bracket, it can meet the testing needs of HUD products of different sizes and shapes, saving the cost of purchasing multiple sets of test equipment. The position of the test platform can be flexibly adjusted in multiple directions, and the angle of the windshield bracket can also be fine-tuned, which facilitates testers to quickly configure according to different test requirements and improves test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solution of this application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0021] Figure 1 It is a structural schematic diagram of an optical performance testing device according to an embodiment of the present application.

[0022] Among them, the reference numerals in the figure correspond to: 1. optical platform; 2. glass bracket; 3. HUD fixture; 4. test platform; 5. light source simulation equipment; 6. windshield. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of this application.

[0024] In the description of this application, it should be understood that the terms "upper, lower, inside, outside, top, bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are for the components themselves in the vertical, perpendicular or gravity directions. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0025] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of this application. The terms used herein are only for describing specific implementation purposes and are not intended to limit this application. Terms such as "parts" and "components" appearing in this article may refer to either a single part or a combination of multiple parts. Terms such as "installation", "setting", and "connection" appearing in this article should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can indicate that one component is directly attached to another component, or that one component is attached to another component through an intermediate component, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances. The features described in one embodiment herein may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0026] The following combination Figure 1 An optical performance testing device provided in an embodiment of the present application is introduced, including an optical platform 1, a glass bracket 2, a HUD fixture 3 and a test platform 4.

[0027] One end of the glass bracket 2 is rotatably connected to the optical platform 1 . The glass bracket 2 is provided with a plurality of soft support shaft assemblies, which are used to support and connect with the windshield.

[0028] The HUD fixture 3 is disposed between the glass support 2 and the optical platform 1 , and the test platform 4 is movably disposed on the optical platform 1 .

[0029] Specifically, the optical platform 1 serves as a support and mounting platform for the glass support 1, HUD fixture 3, and test platform 4. The glass support 2 is used to support and secure the windshield 6, ensuring its stability and adjustability during testing. One end of the glass support 2 is rotatably connected to the optical platform 1, and the other end is used to mount the windshield 6. The glass support 2 is equipped with multiple flexible support shaft assemblies for supporting and securing the windshield 6. By rotating the glass support 2, the angle between it and the optical platform 1 can be adjusted. The height-adjustable flexible support shaft assemblies on the glass support 2 allow for fine-tuning of the angle of the mounted windshield 6.

[0030] The HUD fixture is used to secure and position the HUD product. In this embodiment of the application, the position of the HUD fixture on the optical platform is adjustable to ensure the stability and adjustability of the HUD product during testing.

[0031] The test platform 4 is used to place and move the optical test device to ensure that the optical test device can flexibly adjust its position to meet the optimal test position. The test platform 4 is movably arranged on the optical platform 1. In some possible embodiments, the test platform 4 includes a movable base that can move along the X-axis (left and right direction), Y-axis (front and back direction) and Z-axis (vertical direction) on the optical platform 1. The movable base can adopt a precision guide rail system to ensure the accuracy and stability of the movement. In other possible embodiments, the test platform 4 includes a movable load-bearing platform, which can be pushed by a pushing frame arranged thereunder to adjust a certain angle in the pitch angle direction to meet different testing requirements.

[0032] The test device of the present application ensures the position and angle accuracy of the windshield 6 during the test process through the angle adjustment of the glass bracket 2 and the elastic support of the soft support shaft assembly, thereby improving the accuracy and reliability of the test results, reducing the test errors caused by inaccurate windshield position or angle deviation, and improving the repeatability and consistency of the test. It can adapt to a variety of HUD head-up display products, and through the adjustable HUD fixture and windshield bracket, it can meet the testing requirements of HUD products of different sizes and shapes, saving the cost of purchasing multiple sets of test equipment. The position of the test platform can be flexibly adjusted in multiple directions, and the angle of the windshield bracket can also be fine-tuned, which facilitates test personnel to quickly configure according to different test requirements and improves test efficiency.

[0033] In one possible embodiment, at least two spaced-apart mounting blocks are provided at one end of the optical platform 1. A rotating shaft is disposed between the two mounting blocks, with the centerline of the rotating shaft parallel to the surface of the optical platform 1. The rotating shaft is hingedly connected to the glass support 2. Preferably, the rotating shaft and the glass support 2 may be connected via a rotating bearing, wherein the inner ring of the rotating bearing is fixedly connected to the rotating shaft, and the outer ring of the rotating bearing is used to be fixedly connected to the glass support 2.

[0034] Specifically, the mounting bracket is used to support and position the rotating shaft, ensuring a stable connection to the optical platform 1. Two mounting brackets are installed at one end of the optical platform 1, spaced apart and used to mount the rotating shaft. The mounting bracket is bolted to the optical platform 1, and a mounting hole is provided in the center of the bracket for mounting the rotating shaft.

[0035] The rotating bearing connects the rotating shaft and glass support 2. Its inner ring is fixedly connected to the rotating shaft, while its outer ring is fixedly connected to glass support 2. The inner ring of the rotating bearing can be fixedly connected to the rotating shaft via a key to ensure reliable torque transmission. The outer ring of the rotating bearing is fixedly connected to glass support 2 via bolts to ensure the stable position of glass support 2.

[0036] In one possible embodiment, a mounting hole is machined at one end of the glass support 2, or a mounting hole is provided on a connecting portion of the frame of the glass support 2, and the outer ring of the rotary bearing is fixedly connected to the glass support 2 by bolts. Preferably, the glass support 2 can be rotated and adjusted within an angle range of 0° to 40° around the rotation axis.

[0037] By providing a fixed seat, a rotating shaft, and a rotating bearing at one end of the optical platform 1, the optical performance testing device of the present application enables angular adjustability of the glass support 2, ensuring the position and angular accuracy of the windshield 6 during testing. This design not only improves the accuracy and reliability of the test, but also enhances the ease and flexibility of operation, reduces equipment costs, and improves economic benefits.

[0038] In another possible embodiment, a plurality of positioning holes are provided on the outer ring of the rotary bearing, and the angle between the glass holder 2 and the optical platform 1 can be adjusted by inserting positioning pins. The positioning holes are used to fix the angle between the glass holder 2 and the optical platform 1 to ensure that the angle of the glass holder 2 remains stable during the test. The positioning holes are provided on the outer ring of the rotary bearing and are evenly distributed for inserting positioning pins. Preferably, the number of positioning holes is 2-12, evenly distributed on the outer ring of the rotary bearing, and the angle between each positioning hole is 3°. The distribution angle range of the positioning holes is 0° to 40° to meet the adjustment requirements of the windshield 6 angle of different car models. By rotating the glass holder 2 and inserting the positioning pins, the angle between the glass holder 2 and the optical platform 1 can be adjusted and fixed to ensure that the angle of the glass holder 2 is fixed.

[0039] In another possible embodiment, the rotary bearing is connected to the fixing seat, and a positioning hole can be processed on the fixing seat for inserting a positioning pin to ensure that the positioning pin can fix the angle of the glass bracket 2.

[0040] Furthermore, the glass support 2 includes at least two connected support crossbeams and at least two support longitudinal beams, and a plurality of soft support shaft assemblies are evenly arranged on the support crossbeams and / or the support longitudinal beams.

[0041] Specifically, the supporting crossbeams and supporting longitudinal beams are connected by welding or bolting to form a stable frame structure. The flexible support shaft assembly is used to support and fix the windshield 6, provide uniform support force, and allow fine adjustment of the position of the windshield 6. Preferably, multiple flexible support shaft assemblies can be evenly installed on each supporting crossbeam and / or supporting longitudinal beam, with a certain distance between each flexible support shaft assembly. By changing the arrangement of multiple flexible support shaft assemblies, windshields of different sizes and specifications can also be adapted.

[0042] Furthermore, the soft support shaft assembly includes a support shaft and an adjustment assembly; one end of the support shaft is connected to the glass bracket 2 through the adjustment assembly, and the other end of the support shaft is provided with a fixing member, which is used to be fixedly connected to the windshield 6.

[0043] The support shaft connects the glass bracket 2 and the windshield 6, providing the primary structural support. The adjustment assembly adjusts the support shaft height to ensure the stability and fit of the windshield 6. The fixings secure the windshield 6 to the support shaft, ensuring its stability during testing. These fixings can be one or more of a suction cup, clamp, snap ring, magnet, or bolt, depending on the material, shape, and size of the windshield 6 and the test requirements.

[0044] In one possible embodiment, the adjustment assembly includes an elastic support sleeve and an adjustment nut; one end of the support shaft is threadedly connected to the support crossbeam and / or the support longitudinal beam, and the elastic support sleeve is arranged on the outside of the support shaft; the adjustment nut is threadedly connected to the support shaft and is used to rotate and adjust the compression degree of the elastic support sleeve.

[0045] Specifically, one end of the support shaft is processed with a thread for threaded connection with the support crossbeam and / or the support longitudinal beam, and the height of the support shaft can be adjusted by adjusting the screw-in depth of the support shaft. The elastic support sleeve is arranged on the outside of the support shaft to ensure that its inner diameter fits tightly with the outer diameter of the support shaft. The adjusting nut is screwed onto the thread of the support shaft, and the compression degree of the elastic support sleeve is adjusted by rotating the adjusting nut. Tightening the adjusting nut will increase the compression degree of the elastic support sleeve, thereby reducing the height of the support shaft. Loosening the adjusting nut will reduce the compression degree of the elastic support sleeve, thereby increasing the height of the support shaft. In this way, the height of the support shaft can be further fine-tuned to ensure the position accuracy of the windshield 6 during the test.

[0046] In another possible embodiment, the adjustment assembly includes an elastic member and an adjustment groove, the adjustment groove is arranged on the supporting crossbeam and / or supporting longitudinal beam of the glass bracket 2, one end of the support shaft is clamped to the adjustment groove through a clamping joint, and the elastic member is arranged below the support shaft.

[0047] Specifically, the adjustment groove is used to install and fix the support shaft, while allowing the support shaft to move within a certain range to achieve height adjustment. The adjustment groove is arranged on the support crossbeam and / or support longitudinal beam of the glass holder 2. Card slots are provided on the two side walls of the adjustment groove for clamping with the card joint of the support shaft to ensure that the connection is firm and the support shaft can move in the adjustment groove. One end of the elastic member contacts the bottom of the support shaft, and the other end contacts the support crossbeam or support longitudinal beam of the glass holder 2. The elastic member is installed below the support shaft to provide elastic supporting force. By adjusting the position of the support shaft in the adjustment groove, fine-tuning of the height of the support shaft can be achieved. Specifically, when the support shaft is moved up or down, the elastic member will compress or stretch accordingly, thereby achieving height adjustment. The elastic member can be a spring member.

[0048] The design of the elastic member and adjustment slot allows for fine-tuning of the support shaft height. This adapts to windshields of varying thicknesses, enhancing the versatility and flexibility of the test device. Fine-tuning the support shaft height ensures the precise positioning of the windshield during testing, improving the accuracy and reliability of test results.

[0049] Furthermore, the test platform 4 includes a movable base and a movable carrying platform connected to each other, and the movable base is used to drive the movable carrying platform to move in the X-axis direction, the Y-axis direction and the Z-axis direction.

[0050] The test platform 4 is used to position and move the optical test device, ensuring its flexible adjustment to achieve the optimal test position. The mobile base is connected to the optical platform 1 via a guide rail assembly. The movable platform is rotatably connected to the mobile base, and optical test devices such as cameras are mounted on the movable platform. The guide rail assembly includes X-axis, Y-axis, and Z-axis guide rails that drive the movable platform in different directions, ensuring accurate and stable movement.

[0051] Furthermore, it includes a light source simulation device 5, which uses a surface light source.

[0052] The light source simulator 5 simulates lighting conditions in various environments to evaluate the optical performance of HUDs in outdoor settings. The simulator 5 and the test platform 4 are mounted on either side of the windshield 6 via a bracket. The simulated light source uses a surface light source with switchable color temperature and illumination levels to simulate lighting conditions in various environments. This provides a more comprehensive solution for optical performance testing of HUD products, helping to proactively identify and resolve potential issues that may arise during actual use.

[0053] The optical performance testing device of this application can adapt to a variety of HUD products through adjustable HUD fixtures and glass brackets, meet the testing needs of different sizes and shapes, and save the cost of purchasing multiple sets of testing equipment. The light source simulation equipment can simulate the lighting conditions in indoor and outdoor environments, comprehensively evaluate the optical performance of HUD products, and help to discover and solve problems that may be encountered in actual use of the product in advance. The accuracy and reliability of the test results are ensured by precise fixture and stage adjustment, as well as the various parameter settings of the light source simulation equipment. The high-precision design of the optical platform further improves the stability of the test. All adjustments and test operations can be performed manually or electrically, and the operation interface is simple and intuitive, which reduces the training time and operation difficulty of testers. By being compatible with multiple HUD products and comprehensive environmental simulation functions, the cost of repeated purchase and maintenance of equipment is reduced, and the utilization rate and economic benefits of the equipment are improved.

[0054] Obviously, the embodiments described above are only part of the embodiments of this specification, not all of them. Based on the embodiments of this specification, ordinary technicians in this field can make other different forms of changes or modifications without making any creative work, which should fall within the scope of protection of the embodiments of this specification.

[0055] Those skilled in the art will readily recognize alternative embodiments of the embodiments described herein after considering the specification and practicing the inventions disclosed herein. This specification is intended to cover any variations, uses, or adaptations of the embodiments described herein that follow the general principles of the embodiments described herein and include common knowledge or customary techniques in the art not disclosed in the embodiments described herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the embodiments described herein being indicated by the following claims.

[0056] It should be understood that the embodiments of the present invention are not limited to the precise structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the embodiments of the present invention is limited only by the appended claims.

Claims

1. An optical performance testing device, characterized in that: It includes an optical platform (1), a glass support (2), a HUD fixture (3) and a test platform (4); One end of the glass support (2) is rotatably connected to the optical platform (1), and a plurality of soft support shaft assemblies (21) are provided on the glass support (2), and the plurality of soft support shaft assemblies (21) are used to support and connect with the windshield (6); The HUD fixture (3) is arranged between the glass support (2) and the optical platform (1), and the test platform (4) is movably arranged on the optical platform (1).

2. The optical performance testing device according to claim 1, characterized in that: One end of the optical platform (1) is provided with at least two spaced apart fixing seats (11), a rotation axis (12) is provided between the two fixing seats (11), a center line of the rotation axis (12) is parallel to the surface of the optical platform (1), and the rotation axis (12) is hinged to the glass support (2).

3. The optical performance testing device according to claim 2, characterized in that: The rotating shaft (12) is connected to the glass support (2) via a rotating bearing, the inner ring of the rotating bearing is fixedly connected to the rotating shaft (12), and the outer ring of the rotating bearing is used to be fixedly connected to the glass support (2).

4. The optical performance testing device according to claim 3, characterized in that: A plurality of positioning holes are provided on the outer ring of the rotary bearing, and the angle between the glass support (2) and the optical platform (1) can be adjusted by inserting positioning pins.

5. The optical performance testing device according to claim 1, characterized in that: The glass support (2) comprises at least two connected support crossbeams and at least two connected support longitudinal beams, and a plurality of soft support shaft assemblies (21) are evenly arranged on the support crossbeams and / or the support longitudinal beams.

6. The optical performance testing device according to claim 5, characterized in that: The soft support shaft assembly (21) comprises a support shaft and an adjustment assembly; One end of the support shaft is connected to the glass bracket (2) via an adjustment assembly, and the other end of the support shaft is provided with a fixing member, which is used for fixed connection with the windshield (6).

7. The optical performance testing device according to claim 6, characterized in that: The adjustment assembly includes an elastic support sleeve and an adjustment nut; One end of the support shaft is threadedly connected to the support crossbeam and / or the support longitudinal beam, and the elastic support sleeve is sleeved on the outside of the support shaft; the adjusting nut is threadedly connected to the support shaft and is used to rotate and adjust the compression degree of the elastic support sleeve.

8. The optical performance testing device according to claim 6, characterized in that: The adjustment assembly comprises an elastic member and an adjustment slot, wherein the adjustment slot is arranged on a supporting crossbeam and / or a supporting longitudinal beam of the glass support (2), one end of the support shaft is clamped to the adjustment slot via a clamping joint, and the elastic member is arranged below the support shaft.

9. The optical performance testing device according to claim 1, characterized in that: The test platform (4) comprises a movable base and a movable bearing platform connected to each other, and the movable base is used to drive the movable bearing platform to move in the X-axis direction, the Y-axis direction and the Z-axis direction.

10. The optical performance testing device according to claim 1, characterized in that: It comprises a light source simulation device (5), wherein the light source simulation device (5) adopts a surface light source.

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