Integrating sphere type AR glasses optical detection device

Abstract

The invention relates to an integrating sphere type AR glasses optical detection device, and belongs to the technical field of AR glasses optical detection. Comprising a detection rack, the detection rack comprises a lower rack, a lower workbench is arranged at the top of the lower rack, an upper rack is arranged at the top of the lower workbench, an integrating sphere with a downward light inlet is fixedly arranged on the upper rack, and the integrating sphere is connected with a spectrograph; the test carrier comprises a multi-axis driving module connected to the lower workbench, the top of the multi-axis driving module is connected with an upper workbench used for positioning the product carrying table, and the upper workbench is provided with a test circuit board and a lower probe module which are connected with each other; and the product carrying table is used for accommodating and positioning a tested product, the bottom of the product carrying table is provided with a switching circuit board connected with the lower probe module, the product carrying table is provided with a cover plate, and the cover plate is provided with an upper probe module which is communicated with the switching circuit board and lightens the tested product. The whole detection process is unmanned and automatic, the detection precision is high, the detection efficiency is improved, and the ex-factory qualified rate is improved.

Description

Technical Field

[0001] The present application relates to the technical field of optical detection of AR glasses, and in particular to an integrating sphere type optical detection device for AR glasses. Background Art

[0002] At present, display screens have been widely used in various scenarios of people's lives and have become an indispensable part of people's lives. With the development of science and technology, virtual reality (VR) and augmented reality head-mounted devices have applied many new technologies, gradually attracting people's attention to near-eye displays (NED). Before this, NED system manufacturers had no objective and quantitative way to test the quality of their display screens and could only judge them manually.

[0003] However, as NEDs transition from novelty products to mainstream products, achieving reliable, predictable performance will become increasingly critical. For consumer-grade NED systems, it is necessary to ensure a consistent customer experience and guarantee that the product meets the reputation and performance standards consistent with the manufacturer's brand.

[0004] In the development of components for VR / AR, the main focus is on the display and optics of the head-mounted device. However, the field of view in today's head-mounted devices is small, limiting the user's immersion in the image. Improving this through optics means challenges in ergonomics, manufacturing size, weight and scalability.

[0005] Then there is the visual experience. AR / VR displays project visual information very close to the human eye, covering the user's full-angle field of view. However, this proximity to the human eye also amplifies display defects that users usually cannot perceive when viewing from a distance.

[0006] Near-eye display defects have a significant impact on the user experience and may hinder visualization and device operability. In order to improve product quality and meet user requirements, advanced optical inspection equipment is required.

[0007] Before a head-mounted device leaves the factory, it is usually necessary to test the display screen, which involves testing the brightness and color of the display screen. During the test, the display screen is usually lit manually, and then the human eye recognizes and judges. However, manual visual inspection is prone to missed detection and false detection, and the test results are unreliable and the detection efficiency is low. Summary of the invention

[0008] The embodiment of the present application provides an integrating sphere AR glasses optical detection device to solve the problem in the related art that the display screen is manually lit and then recognized and judged by the human eye, which is prone to missed detection and false detection, low reliability of detection results, and low detection efficiency.

[0009] The embodiment of the present application provides an integrating sphere type AR glasses optical detection device, comprising:

[0010] A detection rack, the detection rack comprises a lower rack, a lower workbench is provided on the top of the lower rack, an upper rack is provided on the top of the lower workbench, an integrating sphere with a light inlet facing downward is fixed on the upper rack, and the integrating sphere is connected to a spectrometer;

[0011] A test carrier, the test carrier comprising a multi-axis driving module connected to the lower workbench, the top of the multi-axis driving module is connected to an upper workbench for positioning the product carrier, and the upper workbench is provided with a test circuit board and a lower probe module connected to each other;

[0012] A product carrier is provided, and the product carrier is used to accommodate and position the product under test. A transfer circuit board connected to a lower probe module is provided at the bottom of the product carrier. A cover plate is provided on the product carrier, and an upper probe module connected to the transfer circuit board and lighting up the product under test is provided on the cover plate.

[0013] In some embodiments: the upper workbench includes a bottom plate and a top plate that are parallel to each other and spaced apart, the bottom plate and the top plate are connected by a vertical plate, the test circuit board is fixed between the bottom plate and the top plate and is horizontally arranged, and the test circuit board is connected to the lower probe module by a first flexible cable;

[0014] The lower probe module is fixed on the top plate and exposed to the top surface of the top plate. The top of the top plate is provided with a plurality of positioning guide blocks surrounding the product carrier to position the product carrier on the top plate. The lower probe module is located in the space surrounded by the plurality of positioning guide blocks.

[0015] In some embodiments: a temperature control module is connected to the top plate, the top of the temperature control module protrudes from the top surface of the top plate and extends into the product carrier to contact the product under test, and the temperature control module is used to control the detection temperature of the product under test;

[0016] The top of the temperature control module is provided with a vacuum suction cup for vacuum adsorbing the product to be tested, and the vacuum suction cup is used to fix the product to be tested on the product carrier. The top plate is also provided with a corresponding radiation sensor for detecting the product carrier.

[0017] In some embodiments: the product carrier comprises a base plate, a positioning plate is detachably connected to the top of the base plate, and a hinge seat is detachably connected to the cover plate, and the adapter circuit board is fixed to the bottom of the base plate;

[0018] The cover plate is provided with a second flexible cable connected to the adapter circuit board, the second flexible cable is connected to the upper probe module, and the upper probe module exposes the bottom surface of the cover plate to press and contact the metal contacts of the product under test.

[0019] In some embodiments: the top of the positioning plate is provided with a receiving groove arranged according to the outer contour of the tested product, and the positioning plate and the cover plate are provided with two groups, and the two groups of the positioning plates and the cover plates are mirror-symmetrical to respectively position and accommodate the two symmetrically arranged tested products;

[0020] The hinge seat is provided with a hinge shaft rotatably connected to the cover plate, the hinge shaft is provided with a torsion spring elastically supporting the cover plate to flip upward, and lock buckles for locking or unlocking the cover plate are respectively provided on both sides of the base plate.

[0021] In some embodiments: the multi-axis driving module includes a Y-axis linear mechanism fixed on the lower workbench, a Z-axis linear mechanism connected to the Y-axis linear mechanism, and an X-axis linear mechanism connected to the top of the Z-axis linear mechanism;

[0022] The Y-axis linear mechanism moves the product carrier from the loading and unloading station to the detection station directly below the integrating sphere, the Z-axis linear mechanism moves the product carrier into or out of the light inlet of the integrating sphere, and the X-axis linear mechanism is used to adjust the positions of the two groups of product carriers.

[0023] In some embodiments: the Y-axis linear mechanism includes a Y-axis linear module and a Y-axis linear guide rail which are parallel to each other and spaced apart and fixed on the lower workbench, and a first slide is connected to the Y-axis linear module and the Y-axis linear guide rail;

[0024] The Z-axis linear mechanism comprises a Z-axis linear module and a Z-axis linear guide rail which are parallel to each other and spaced apart and fixed on the first slide, the Z-axis linear module and the Z-axis linear guide rail are connected to a second slide, and the X-axis linear mechanism is fixed on the second slide;

[0025] The lower workbench is provided with an avoidance hole between the Y-axis linear module and the Y-axis linear guide rail, the Z-axis linear module is located in the avoidance hole, and the bottom of the lower workbench is provided with a box-type cover for closing the avoidance hole.

[0026] In some embodiments: the X-axis linear mechanism includes a lower base and an upper slide seat located on the top of the lower base, the lower base and the upper slide seat are slidably connected by an X-axis linear guide rail, the lower base is provided with a micrometer rod, and the upper slide seat is provided with an adjustment seat rotatably connected to the micrometer rod.

[0027] In some embodiments: it also includes a casing, the detection frame, the test carrier and the product carrier are all enclosed in the casing, the casing provides a darkroom environment for the tested product, the side wall of the casing is provided with loading and unloading ports, and a lifting door that closes the loading and unloading ports, and a fan filter is provided on the top of the casing.

[0028] In some embodiments: the outer wall of the housing is provided with a pair of opposing gratings located on both sides of the loading and unloading ports, and the outer wall of the housing is also provided with a control terminal connected to the spectrometer, and the control terminal is a desktop computer or a laptop computer.

[0029] The beneficial effects of the technical solution provided by this application include:

[0030] An embodiment of the present application provides an integrating sphere type AR glasses optical detection device. Since the integrating sphere type AR glasses optical detection device of the present application is provided with a detection frame, the detection frame includes a lower frame, a lower workbench is provided on the top of the lower frame, an upper frame is provided on the top of the lower workbench, an integrating sphere with a light inlet facing downward is fixedly provided on the upper frame, and the integrating sphere is connected to a spectrometer; a test carrier, the test carrier includes a multi-axis drive module connected to the lower workbench, the top of the multi-axis drive module is connected to an upper workbench for positioning a product carrier, and the upper workbench is provided with a test circuit board and a lower probe module connected to each other; a product carrier, the product carrier is used to accommodate and position a product to be tested, a transfer circuit board connected to the lower probe module is provided at the bottom of the product carrier, a cover plate is provided on the product carrier, and an upper probe module connected to the transfer circuit board and lighting up the product to be tested is provided on the cover plate.

[0031] Therefore, the integrating sphere type AR glasses optical detection device of the present application is fixedly provided with an integrating sphere with a light inlet facing downward on the upper frame, and the integrating sphere is connected to a spectrometer. The integrating sphere and the spectrometer are used to automatically perform optical detection on the optical parameters of the tested product after lighting, thereby improving the reliability of the detection results. A multi-axis drive module is arranged on the lower workbench, and the top of the multi-axis drive module is connected to an upper workbench for positioning the product carrier. The multi-axis drive module is used to automatically switch the product carrier placed on the upper workbench between the loading and unloading station and the detection station, thereby improving the detection efficiency of the tested product. When the product carrier is placed on the upper workbench, the lower probe module is electrically connected to the adapter circuit board. When the cover plate presses the tested product onto the product carrier, the upper probe module on the cover plate contacts the metal contacts of the tested product and lights up the tested product, thereby realizing the synchronous action of positioning and circuit connection of the tested product, further improving the detection efficiency of the tested product, and reducing the detection difficulty.

[0032] When the application performs optical inspection on the tested product, the multi-axis drive module of the test carrier automatically moves the tested product positioned on the product carrier from the loading and unloading station to the inspection station below the integrating sphere. After the product carrier is placed on the upper workbench, the self-positioning of the product carrier and the lighting test circuit connection action can be completed. The tested product is powered on and lit by the test circuit board, lower probe module, adapter circuit board and upper probe module on the upper workbench and product carrier. Finally, the integrating sphere and spectrometer perform optical parameter inspection on the lit tested product. The whole inspection process is unmanned and automated, with high inspection accuracy, improved inspection efficiency, and improved factory qualification rate.

[0033] The upper workbench of the present application includes a bottom plate and a top plate that are parallel to each other and spaced apart, the bottom plate and the top plate are connected by a vertical plate, the test circuit board is fixed between the bottom plate and the top plate and is horizontally arranged, and the test circuit board is connected to the lower probe module by a first flexible cable; the lower probe module is fixed on the top plate and exposed to the top surface of the top plate, and the top of the top plate is provided with a plurality of positioning guide blocks arranged around the product carrier to position the product carrier on the top plate, and the lower probe module is located in the space surrounded by the plurality of positioning guide blocks. The bottom plate, the top plate and the vertical plate of the upper workbench are connected to each other to form a space for accommodating and installing the test circuit board, so that the test circuit board can be fixed between the bottom plate and the top plate in a horizontal direction. The lower probe module is fixed on the top plate and exposed to the top surface of the top plate, and is located in the space surrounded by the plurality of positioning guide blocks. After the plurality of positioning guide blocks position the product carrier on the top plate, the precise alignment of the transfer circuit board and the lower probe module can be completed, and the lighting test circuit conduction can be completed.

[0034] A temperature control module is connected to the top plate of the present application. The top of the temperature control module protrudes from the top surface of the top plate and extends into the product carrier to contact the product under test. The temperature control module is used to control the detection temperature of the product under test. A vacuum suction cup for vacuum adsorbing the product under test is provided on the top of the temperature control module. The vacuum suction cup is used to fix the product under test on the product carrier. A beam sensor for detecting the product carrier is also provided on the top plate. The temperature control module contacts the product under test, thereby controlling the detection temperature of the product under test to accurately control the detection temperature of the product under test during optical inspection, thereby realizing the optical parameters of the product under test under different temperature environments or constant temperature environments, thereby accurately and objectively evaluating the imaging effect of the product under test. The temperature control module is also integrated with a vacuum suction cup for adsorbing the product under test, which fixes the product under test on the product carrier to avoid displacement of the product under test during movement or inspection. The beam sensor is used to detect whether the cover is in a closed state, thereby improving the safety and reliability of the inspection.

[0035] The product carrier of the present application includes a substrate, the top of the substrate is detachably connected to a positioning plate, and a hinge seat detachably connected to a rotatable connected cover plate, and the adapter circuit board is fixed to the bottom of the substrate; the cover plate is provided with a second flexible cable connected to the adapter circuit board, the second flexible cable is connected to the upper probe module, the upper probe module exposes the bottom surface of the cover plate, and presses down to contact the metal contacts of the product under test. The positioning plate and the hinge seat are detachably connected at the top of the substrate, the positioning plate is used to position and accommodate the product under test, and the hinge seat is used to rotatably connect the cover plate, and the cover plate is rotatably connected to the hinge seat to flip up and down to open or press the product under test. The upper probe module on the cover plate is connected to the adapter circuit board through the second flexible cable, and the second flexible cable is used to improve the flexibility of the cover plate flipping up and down and increase the flipping angle range of the cover plate. The upper probe module exposes the bottom surface of the cover plate, which is convenient for the upper probe module to contact the metal contacts of the product under test when the cover plate is closed.

[0036] The top of the positioning plate of the present application is provided with a receiving groove arranged according to the outer contour of the product to be tested. There are two groups of positioning plates and cover plates. The two groups of positioning plates and cover plates are mirror-symmetrical to respectively position and accommodate two symmetrically arranged products to be tested. The hinge seat is provided with a hinge shaft for rotatably connecting the cover plate. The hinge shaft is provided with a torsion spring for elastically supporting the cover plate to flip upward. Both sides of the base plate are provided with locks for locking or unlocking the cover plate. The top of the positioning plate is provided with a receiving groove for accommodating and positioning the product to be tested. The receiving groove is adapted to the outer contour of the product to be tested, so that the product to be tested can be accurately positioned in the receiving groove, thereby improving the positioning accuracy of the product to be tested. The two groups of positioning plates and the two groups of cover plates are mirror-symmetrical, and are used to respectively adapt to the left-eye display screen and the right-eye display screen that are mirror-symmetrical.

[0037] The multi-axis drive module of the present application includes a Y-axis linear mechanism fixed on the lower workbench, a Z-axis linear mechanism connected to the Y-axis linear mechanism, and an X-axis linear mechanism connected to the top of the Z-axis linear mechanism; the Y-axis linear mechanism moves the product carrier from the loading and unloading station to the detection station directly below the integrating sphere, the Z-axis linear mechanism moves the product carrier into or out of the light inlet of the integrating sphere, and the X-axis linear mechanism is used to adjust the positions of the two groups of product carriers. The Y-axis linear mechanism and the Z-axis linear mechanism cooperate with each other to automatically move the product carrier placed on the upper workbench from the loading and unloading station to the detection station for detection. After the detection is completed, the product carrier is automatically moved from the detection station to the loading and unloading station for unloading, thereby improving the detection efficiency of the tested product. The X-axis linear mechanism is used to adjust the positions of the two groups of product carriers where the left-eye display screen and the right-eye display screen are placed respectively, so that one device can be used for automated optical detection operations of two products.

[0038] The Y-axis linear mechanism of the present application includes a Y-axis linear module and a Y-axis linear guide fixed on the lower workbench, which are parallel to each other and spaced apart, and a first slide is connected to the Y-axis linear module and the Y-axis linear guide; the Z-axis linear mechanism includes a Z-axis linear module and a Z-axis linear guide fixed on the first slide, which are parallel to each other and spaced apart, and a second slide is connected to the Z-axis linear module and the Z-axis linear guide, and the X-axis linear mechanism is fixed on the second slide; the lower workbench is provided with an avoidance hole between the Y-axis linear module and the Y-axis linear guide, the Z-axis linear module is located in the avoidance hole, and the bottom of the lower workbench is provided with a box-type cover for closing the avoidance hole. The workbench is provided with an avoidance hole for avoiding the Z-axis linear module, thereby reducing the height of the Z-axis linear mechanism, thereby improving the stability of the mobile product under test. The box-type cover is used to close the avoidance hole to prevent natural light from entering the detection device through the avoidance hole.

[0039] The X-axis linear mechanism of the present application includes a lower base and an upper slide seat located on the top of the lower base, the lower base and the upper slide seat are slidably connected by an X-axis linear guide rail, a micrometer rod is provided on the lower base, and an adjustment seat rotatably connected to the micrometer rod is provided on the upper slide seat. The micrometer rod on the lower base adjusts its own length, thereby causing the upper slide seat to slide on the lower base along the length direction of the X-axis linear guide rail, thereby adjusting the positions of the product carriers used to position the left-eye display screen and the right-eye display screen in the X-axis direction respectively. The X-axis linear mechanism is adjusted only when the two product carriers are replaced, so the X-axis linear mechanism uses a micrometer rod as a manual adjustment structure, which has the advantages of controllable stroke, high positioning accuracy, and low cost.

[0040] The present application also includes a casing, in which the detection rack, test carrier and product carrier are all enclosed, and the casing provides a darkroom environment for the product under test. Loading and unloading ports are provided on the side walls of the casing, as well as lifting doors that close the loading and unloading ports. A fan filter is provided on the top of the casing. The casing not only serves as a protective cover for the appearance of the detection rack, test carrier and product carrier, but is also used to form an internal closed cavity structure, providing a darkroom environment for the product under test to prevent interference of external natural light on the product under test. The fan filter on the top of the casing creates a dust-free environment for the internal space of the casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0042] Figure 1 This is a schematic diagram of the structure of the embodiment of the present application without a housing;

[0043] Figure 2 This is a front view of the structure of the embodiment of the present application without the housing;

[0044] Figure 3 This is a schematic diagram of the structure of the rack, test carrier and product carrier in the embodiment of the present application;

[0045] Figure 4 This is a schematic diagram of the structure of the test carrier and the product carrier of the embodiment of the present application;

[0046] Figure 5 This is a schematic diagram of the structure of a multi-axis drive module according to an embodiment of the present application;

[0047] Figure 6 This is a schematic diagram of the structure of the product carrier and the upper workbench of the embodiment of the present application;

[0048] Figure 7 This is a schematic diagram of the structure of the workbench from a first perspective in an embodiment of the present application;

[0049] Figure 8 This is a schematic diagram of the structure of the workbench from a second viewing angle according to an embodiment of the present application;

[0050] Fig. 9 This is a schematic diagram of the structure of the product carrier from the first perspective of the embodiment of the present application;

[0051] Fig.10 This is a schematic diagram of the structure of the product carrier from a second viewing angle according to an embodiment of the present application;

[0052] Fig.11 It is a schematic diagram of the structure of the casing of an embodiment of the present application.

[0053] Reference numerals:

[0054] 100, detection rack; 110, lower rack; 111, lower workbench; 112, avoidance hole; 113, box cover; 120, upper rack; 130, integrating sphere; 131, spectrometer; 140, housing; 141, lifting door; 142, beam grating; 143, control terminal; 144, fan filter;

[0055] 200, test carrier; 210, multi-axis drive module; 220, upper workbench; 221, bottom plate; 222, top plate; 223, vertical plate; 224, test circuit board; 225, lower probe module; 226, positioning guide block; 227, first flexible cable; 228, through-beam sensor; 229, temperature control module;

[0056] 230, Y-axis linear mechanism; 231, Y-axis linear module; 232, Y-axis linear guide; 233, first slide; 240, Z-axis linear mechanism; 241, Z-axis linear module; 242, Z-axis linear guide; 243, second slide; 250, X-axis linear mechanism; 251, lower base; 252, upper slide; 253, X-axis linear guide; 254, micrometer rod; 255, adjustment seat;

[0057] 300, product carrier; 301, substrate; 302, positioning plate; 303, hinge seat; 304, cover plate; 305, adapter circuit board; 306, upper probe module; 307, second flexible cable; 308, lock; 309, accommodating groove; 310, hinge shaft; 311, torsion spring; 312, permanent magnet; 313, positioning hole; 314, through hole; 400, product under test. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0059] The embodiment of the present application provides an integrating sphere type AR glasses optical detection device, which can solve the problems in the related technology of manually lighting the display screen and then using human eye recognition and judgment, which is prone to missed detection and false detection, low reliability of detection results, and low detection efficiency.

[0060] See also Figures 1 to 10 As shown, the embodiment of the present application provides an integrating sphere type AR glasses optical detection device, comprising:

[0061] The detection frame 100 includes a lower frame 110, which is a rectangular frame structure formed by fixedly connecting profiles. A lower workbench 111 is provided on the top of the lower frame 110, and the lower workbench 111 is a rectangular metal plate. An upper frame 120 is provided on the top of the lower workbench 111, and the upper frame 120 is also a rectangular frame structure formed by fixedly connecting profiles. An integrating sphere 130 with a light inlet facing downward is fixedly provided on the upper frame 120, and the integrating sphere 130 is connected to a spectrometer 131.

[0062] The spectrometer 131 combined with the integrating sphere 130 can be used to measure the parameters of the product under test 400, such as the luminous flux, color temperature, and luminous efficiency. By placing the product under test 400 at the light inlet of the integrating sphere 130, the light in the integrating sphere 130 forms a uniform illumination distribution after multiple reflections. At this time, by measuring the light using the spectrometer 131, the spectral distribution of the product under test 400 at different wavelengths can be obtained, and then the various parameters of the product under test 400 can be calculated. Using the spectrometer 131 combined with the integrating sphere 130 to detect the product under test not only improves the measurement accuracy, but also eliminates the interference of ambient light on the measurement.

[0063] The test carrier 200 includes a multi-axis driving module 210 connected to the lower workbench 111, and the top of the multi-axis driving module 210 is connected to an upper workbench 220 for positioning the product carrier 300, and the upper workbench 220 is provided with a test circuit board 224 and a lower probe module 225 connected to each other. The multi-axis driving module 210 is fixed on the lower workbench 111, and the multi-axis driving module 210 is used to automatically move the upper workbench 220 with the product carrier 300 placed thereon from the loading and unloading station to the detection station at the light inlet of the integrating sphere 130. The test circuit board 224 and the lower probe module 225 are used to provide a lighted test signal to the product 400 under test.

[0064] The product carrier 300 is used to accommodate and position the product 400 to be tested. The product 400 to be tested is positioned on the top of the product carrier 300. A transfer circuit board 305 connected to the lower probe module 225 is provided at the bottom of the product carrier 300. The transfer circuit board 305 is provided with a metal contact that contacts the metal probe on the lower probe module 225. A cover plate 304 is provided on the product carrier 300. The cover plate 304 is provided with an upper probe module 306 that is connected to the transfer circuit board 305 and lights up the product 400 to be tested. When the cover plate 304 presses the product 400 to be tested, the metal probe on the upper probe module 306 contacts the metal contact of the product 400 to be tested, thereby lighting up the product 400 to be tested.

[0065] The integrating sphere type AR glasses optical inspection device of the embodiment of the present application is fixedly provided with an integrating sphere 130 with a light inlet facing downward on the upper frame 120, and the integrating sphere 130 is connected to a spectrometer 131. The integrating sphere 130 and the spectrometer 131 are used to automatically perform optical inspection on the optical parameters of the tested product 400 after lighting, thereby improving the reliability of the inspection results. The multi-axis driving module 210 on the lower workbench 111 is connected to the top of the multi-axis driving module 210 with an upper workbench 220 for positioning the product carrier 300.

[0066] The multi-axis drive module 210 is used to automatically switch the product carrier 300 placed on the upper workbench 220 between the loading and unloading station and the inspection station, thereby improving the inspection efficiency of the product under test. After the product carrier 300 is placed on the upper workbench 220, the lower probe module 225 and the adapter circuit board 305 are electrically connected to each other. When the cover plate 304 presses the product under test 400 onto the product carrier 300, the upper probe module 306 on the cover plate 304 contacts the metal contacts of the product under test 400 and lights up the product under test 400, realizing the positioning of the product under test 400 and lighting up the test circuit connection synchronously, further improving the inspection efficiency of the product under test 400 and reducing the inspection difficulty.

[0067] When the embodiment of the present application performs optical inspection on the tested product 400, the multi-axis driving module 210 of the test carrier 200 automatically moves the tested product 400 positioned on the product carrier 300 from the loading and unloading station to the inspection station below the integrating sphere 130. After the product carrier 300 is placed on the upper workbench 220, the self-positioning of the product carrier 300 and the lighting test circuit connection action can be completed, and the tested product 400 is powered on and illuminated by the test circuit board 224, the lower probe module 225, the adapter circuit board 305 and the upper probe module 306 on the upper workbench 220 and the product carrier 300. Finally, the integrating sphere 130 and the spectrometer 131 perform optical parameter detection on the illuminated tested product 400. The entire detection process is unmanned and automated, with high detection accuracy, improved detection efficiency, and improved factory qualified rate.

[0068] In some alternative embodiments, see Figures 6 to 8 As shown, the embodiment of the present application provides an integrating sphere type AR glasses optical detection device, the upper workbench 220 of the detection device includes a bottom plate 221 and a top plate 222 which are parallel to each other and spaced apart, and the bottom plate 221 and the top plate 222 are connected by a vertical plate 223. The test circuit board 224 is fixed between the bottom plate 221 and the top plate 222 and is horizontally arranged. The top of the bottom plate 221 is provided with a plurality of vertical columns for supporting the test circuit board 224, so that the test circuit board 224 is in a suspended state, which is conducive to the heat dissipation of the test circuit board 224. The test circuit board 224 is connected to the lower probe module 225 by a first flexible cable 227.

[0069] The test circuit board 224 is arranged in the upper workbench 220 closest to the product 400 under test, thereby minimizing the distance between the test circuit board 224 and the product 400 under test, thereby shortening the length of the first flexible cable 227 to reduce the transmission loss of the detection signal. The lower probe module 225 is fixed on the top plate 222 and exposed to the top surface of the top plate 222. The top of the top plate 222 is provided with a plurality of positioning guide blocks 226 arranged around the product carrier 300 to position the product carrier 300 on the top plate 222. The lower probe module 225 is located in the space surrounded by the plurality of positioning guide blocks 226.

[0070] The bottom plate 221, top plate 222 and vertical plate 223 of the upper workbench 220 of the embodiment of the present application are interconnected to form a space for accommodating and installing the test circuit board 224, so that the test circuit board 224 can be fixed horizontally between the bottom plate 221 and the top plate 222. The lower probe module 225 is fixed on the top plate 222 and exposed to the top surface of the top plate 222, and is located in the space surrounded by multiple positioning guide blocks 226. After the multiple positioning guide blocks 226 position the product carrier 300 on the top plate 222, the transfer circuit board 305 and the lower probe module 225 can be accurately aligned, and the lighting test circuit is turned on.

[0071] In some alternative embodiments, see Figures 6 to 8 As shown, the embodiment of the present application provides an integrating sphere type AR glasses optical detection device, the top plate 222 of the detection device is connected to a temperature control module 229, the top of the temperature control module 229 protrudes from the top surface of the top plate 222 and extends into the product carrier 300 to contact the product 400 under test, and the temperature control module 229 is used to control the detection temperature of the product 400 under test. A vacuum suction cup for vacuum adsorbing the product under test is provided on the top of the temperature control module 229, and the vacuum suction cup is used to fix the product 400 under test on the product carrier 300, and a corresponding sensor 228 for detecting the product carrier 300 is also provided on the top plate 222.

[0072] The temperature control module 229 of the embodiment of the present application is in contact with the product 400 under test, thereby controlling the detection temperature of the product 400 under test to precisely control the product 400 under test during optical detection, thereby realizing the detection of the optical parameters of the product 400 under different temperature environments or constant temperature environments, thereby accurately and objectively evaluating the imaging effect of the product 400 under test. The temperature control module 229 is also integrated with a vacuum suction cup for adsorbing the product 400 under test, which fixes the product 400 under test on the product carrier 300 to prevent the product 400 from shifting during movement or detection. The through-beam sensor 228 is used to detect whether the cover plate 304 is in a closed state, to prevent the cover plate 304 from interfering with the position of the integrating sphere 130, resulting in mutual collision, and to improve the safety and reliability of the detection.

[0073] In some alternative embodiments, see Fig. 9 and Fig.10 As shown, the embodiment of the present application provides an integrating sphere type AR glasses optical detection device, the product carrier 300 of the detection device includes a substrate 301, a positioning plate 302 is detachably connected to the top of the substrate 301, and a hinge seat 303 is detachably connected to the cover plate 304, and the adapter circuit board 305 is fixed to the bottom of the substrate 301. A second flexible cable 307 connected to the adapter circuit board 305 is provided on the cover plate 304, and the second flexible cable 307 is connected to the upper probe module 306, and the upper probe module 306 exposes the bottom surface of the cover plate 304, and the upper probe module 306 contacts the metal contact of the product 400 to be tested when pressed down.

[0074] In the embodiment of the present application, a positioning plate 302 and a hinge seat 303 are detachably connected to the top of the base plate 301. The positioning plate 302 is used to position and accommodate the product 400 to be tested. The hinge seat 303 is used to rotatably connect the cover plate 304. The cover plate 304 is rotatably connected to the hinge seat 303 to flip up and down to open or press the product 400 to be tested. The upper probe module 306 on the cover plate 304 is connected to the adapter circuit board 305 through the second flexible cable 307. The second flexible cable 307 has good flexibility to improve the flexibility of the cover plate 304 to flip up and down, and increase the flip angle range of the cover plate 304. The upper probe module 306 exposes the bottom surface of the cover plate 304, so that the upper probe module 306 can contact the metal contacts of the product 400 to be tested when the cover plate 304 is closed.

[0075] A permanent magnet 312 for adsorbing the top plate 222 is fixedly connected to the bottom of the substrate 301, and a permanent magnet 312 for adsorbing the substrate 301 is also fixed on the top surface of the top plate 222. The permanent magnet 312 of the substrate 301 and the permanent magnet 312 of the top plate 222 attract each other, and the product carrier 300 is firmly fixed on the upper workbench 220. A positioning hole 313 for positioning the substrate 301 on the top plate 222 is opened at the bottom of the substrate 301, and a positioning pin adapted to the positioning hole 313 is fixed on the top plate 222. The positioning pin cooperates with the positioning hole 313 to accurately position the product carrier 300 on the upper workbench 220. A through hole 314 extending into the temperature control module 229 is opened on the substrate 301 and the positioning plate 302. After the temperature control module 229 extends into the through hole 314, it contacts the product 400 under test.

[0076] In some alternative embodiments, see Fig. 9 and Fig.10As shown, the embodiment of the present application provides an integrating sphere type AR glasses optical detection device, and the top of the positioning plate 302 of the detection device is provided with a receiving groove 309 arranged according to the outer contour of the product 400 to be tested. There are two groups of positioning plates 302 and cover plates 304, and the two groups of positioning plates 302 and cover plates 304 are mirror-symmetrical to respectively position and accommodate two symmetrically arranged products 400 to be tested. A hinge shaft 310 for rotatably connecting the cover plate 304 is provided on the hinge seat 303, and a torsion spring 311 for elastically supporting the cover plate 304 to flip upward is provided on the hinge shaft 310, and lock buckles 308 for locking or unlocking the cover plate 304 are respectively provided on both sides of the base plate 301.

[0077] In the embodiment of the present application, a receiving groove 309 for receiving and positioning the product 400 to be tested is provided on the top of the positioning plate 302. The receiving groove 309 is adapted to the outer contour of the product 400 to be tested, thereby accurately positioning the product 400 to be tested in the receiving groove 309, thereby improving the positioning accuracy of the product 400 to be tested. The two sets of positioning plates 302 and the two sets of cover plates 304 are both mirror-symmetrical, and are used to respectively adapt to the left-eye display screen and the right-eye display screen that are mirror-symmetrical. The shapes of the left-eye display screen and the right-eye display screen are arranged in mirror-symmetrical configuration, so that two sets of positioning plates 302 and two sets of cover plates 304 are required to provide positioning and pressing for the left-eye display screen and the right-eye display screen, respectively.

[0078] The positioning plate 302 and the hinge seat 303 are both detachably connected to the top of the base plate 301, so that the two sets of positioning plates 302 and the two sets of cover plates 304 for positioning and pressing the left-eye display screen and the right-eye display screen can share the base plate 301, thereby improving the versatility of the base plate 301. The cover plate 304 is connected to the hinge seat 303 through the hinge shaft 310, so that the cover plate 304 rotates around the hinge seat 303 with the hinge shaft 310 as the center. The torsion spring 311 provided on the hinge shaft 310 is used to elastically support the cover plate 304 to flip upward, and the lock buckles 308 on both sides of the base plate 301 are used to lock or unlock the cover plate 304.

[0079] In some alternative embodiments, see Figures 3 to 5 As shown, the embodiment of the present application provides an integrating sphere type AR glasses optical detection device, and the multi-axis driving module 210 of the detection device includes a Y-axis linear mechanism 230 fixed on the lower workbench 111, a Z-axis linear mechanism 240 connected to the Y-axis linear mechanism 230, and an X-axis linear mechanism 250 connected to the top of the Z-axis linear mechanism 240. The Y-axis linear mechanism 230 moves the product carrier 300 from the loading and unloading station to the detection station directly below the integrating sphere 130, the Z-axis linear mechanism 240 group moves the product carrier 300 into or out of the light inlet of the integrating sphere 130, and the X-axis linear mechanism 250 is used to adjust the positions of the two groups of product carriers 300.

[0080] The Y-axis linear mechanism 230 and the Z-axis linear mechanism 240 of the embodiment of the present application cooperate with each other to automatically move the product carrier 300 placed on the upper workbench 220 from the loading and unloading station to the inspection station for inspection. After the inspection is completed, the product carrier 300 is automatically moved from the inspection station to the loading and unloading station for unloading, thereby improving the inspection efficiency of the tested product. The X-axis linear mechanism 250 is used to adjust the positions of the two groups of product carriers 300 respectively placed on the left-eye display screen and the right-eye display screen, so that one device can be used for the automated optical inspection of two products, meet the inspection requirements of the left-eye display screen and the right-eye display screen, and help shorten the switching time of the customer's production line.

[0081] In some alternative embodiments, see Figures 3 to 5 As shown, the embodiment of the present application provides an integrating sphere type AR glasses optical detection device, wherein the Y-axis linear mechanism 230 of the detection device includes a Y-axis linear module 231 and a Y-axis linear guide 232 which are parallel to each other and spaced apart and fixed on the lower workbench 111, and a first slide 233 is connected to the Y-axis linear module 231 and the Y-axis linear guide 232. The Z-axis linear mechanism 240 includes a Z-axis linear module 241 and a Z-axis linear guide 242 which are parallel to each other and spaced apart and fixed on the first slide 233, and a second slide 243 is connected to the Z-axis linear module 241 and the Z-axis linear guide 242, and an X-axis linear mechanism 250 is fixed on the second slide 243.

[0082] The Y-axis linear module 231 and the Z-axis linear module 241 of the embodiment of the present application are both driven by a servo motor, which can realize closed-loop control and improve positioning accuracy, and the servo motor is equipped with a brake mechanism, which can immediately stop rotating when the servo motor is powered off. The lower workbench 111 is provided with an avoidance hole 112 located between the Y-axis linear module 231 and the Y-axis linear guide 232, and the Z-axis linear module 241 is located in the avoidance hole 112. The bottom of the lower workbench 111 is provided with a box-type cover 113 that closes the avoidance hole 112.

[0083] By providing a avoidance hole 112 on the lower workbench 111 for avoiding the Z-axis linear module 241, the Z-axis linear module 241 can move freely in the avoidance hole 112 along the length direction of the Y-axis linear module 231 and the Z-axis linear module 241, thereby reducing the height of the Z-axis linear mechanism 240 to the lower part of the lower workbench 111, reducing the height of the product carrier 300, and thus improving the stability of the mobile tested product 400. The box-type cover 113 is used to close the avoidance hole 112 to prevent natural light from entering the detection device through the avoidance hole 112.

[0084] In some alternative embodiments, see Figures 3 to 5As shown, the embodiment of the present application provides an integrating sphere type AR glasses optical detection device, and the X-axis linear mechanism 250 of the detection device includes a lower base 251 and an upper slide 252 located on the top of the lower base 251. The lower base 251 and the upper slide 252 are slidably connected by an X-axis linear guide 253, a micrometer rod 254 is provided on the lower base 251, and an adjustment seat 255 rotatably connected to the micrometer rod 254 is provided on the upper slide 252.

[0085] The micrometer rod 254 on the lower base 251 adjusts its own length, thereby making the upper slide 252 slide on the lower base 251 along the length direction of the X-axis linear guide 253, thereby adjusting the positions of the product carriers 300 used to position the left-eye display screen and the right-eye display screen in the X-axis direction. The X-axis linear mechanism 250 is only adjusted when the two product carriers 300 are replaced, and the frequency of use is relatively low. Therefore, the X-axis linear mechanism 250 uses the micrometer rod 254 as a manual adjustment structure, which has the advantages of controllable stroke, high positioning accuracy, and low cost.

[0086] In some alternative embodiments, see Fig.11 As shown, the embodiment of the present application provides an integrating sphere type AR glasses optical inspection device, which further includes a housing 140, and the inspection frame 100, the test carrier 200 and the product carrier 300 are all enclosed in the housing 140. The housing 140 provides a darkroom environment for the product 400 to be tested, and a loading and unloading port and a lifting door 141 for closing the loading and unloading port are provided on the side wall of the housing 140, and a fan filter 144 is provided on the top of the housing 140.

[0087] The housing 140 not only serves as a protective cover for the appearance of the test rack 100, the test carrier 200 and the product carrier 300, but is also used to form an internal closed cavity structure to provide a darkroom environment for testing the tested product 400, thereby preventing the external natural light from interfering with the tested product 400 entering the housing 140. The fan filter 144 on the top of the housing 140 forms a dust-free environment for the internal space of the housing 140.

[0088] The outer wall of the housing 140 is provided with a beam grating 142 located on both sides of the loading and unloading ports. The beam grating 142 is used to detect whether there is an obstacle (such as an arm or a mechanical arm) in the loading and unloading ports. When the beam grating 142 detects that there is no obstacle in the loading and unloading ports, a door closing command can be sent to the lifting door 141. The outer wall of the housing 140 is also provided with a control terminal 143 connected to the spectrometer 131. The control terminal 143 is a desktop computer or a laptop computer. The control terminal 143 can control the detection command or output the detection result.

[0089] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0090] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0091] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An integrating sphere type AR glasses optical detection device, characterized in that: include: A detection frame (100), the detection frame (100) comprising a lower frame (110), a lower workbench (111) being provided on the top of the lower frame (110), an upper frame (120) being provided on the top of the lower workbench (111), an integrating sphere (130) with a light inlet facing downward being fixedly provided on the upper frame (120), and the integrating sphere (130) being connected to a spectrometer (131); A test carrier (200), the test carrier (200) comprising a multi-axis driving module (210) connected to the lower workbench (111), the top of the multi-axis driving module (210) being connected to an upper workbench (220) for positioning a product carrier (300), the upper workbench (220) being provided with a test circuit board (224) and a lower probe module (225) connected to each other; A product carrier (300) is provided, the product carrier (300) is used to accommodate and position a product (400) to be tested, a transfer circuit board (305) connected to a lower probe module (225) is provided at the bottom of the product carrier (300), a cover plate (304) is provided on the product carrier (300), and an upper probe module (306) connected to the transfer circuit board (305) and lighting up the product (400) to be tested is provided on the cover plate (304).

2. The integrating sphere type AR glasses optical detection device according to claim 1, characterized in that: The upper workbench (220) comprises a bottom plate (221) and a top plate (222) which are parallel to each other and spaced apart, the bottom plate (221) and the top plate (222) are connected via a vertical plate (223), the test circuit board (224) is fixed between the bottom plate (221) and the top plate (222) and is horizontally arranged, and the test circuit board (224) is connected to the lower probe module (225) via a first flexible flat cable (227); The lower probe module (225) is fixed on the top plate (222) and is exposed to the top surface of the top plate (222). The top of the top plate (222) is provided with a plurality of positioning guide blocks (226) which are arranged around the product carrier (300) to position the product carrier (300) on the top plate (222). The lower probe module (225) is located in the space surrounded by the plurality of positioning guide blocks (226).

3. The integrating sphere type AR glasses optical detection device according to claim 2, characterized in that: The top plate (222) is connected to a temperature control module (229), the top of the temperature control module (229) protrudes from the top surface of the top plate (222) and extends into the product carrier (300) to contact the product (400) under test, and the temperature control module (229) is used to control the detection temperature of the product (400) under test; A vacuum suction cup for vacuum adsorbing the product (400) to be tested is provided on the top of the temperature control module (229), and the vacuum suction cup is used to fix the product (400) to be tested on the product carrier (300). A corresponding radiation sensor (228) for detecting the product carrier (300) is also provided on the top plate (222).

4. An integrating sphere type AR glasses optical detection device according to any one of claims 1 to 3, characterized in that: The product carrier (300) comprises a base plate (301), the top of the base plate (301) is detachably connected to a positioning plate (302), and a hinge seat (303) detachably connected to the cover plate (304), and the adapter circuit board (305) is fixed to the bottom of the base plate (301); The cover plate (304) is provided with a second flexible cable (307) connected to the adapter circuit board (305); the second flexible cable (307) is connected to the upper probe module (306); the upper probe module (306) exposes the bottom surface of the cover plate (304) and presses down to contact the metal contacts of the product under test (400).

5. The integrating sphere type AR glasses optical detection device according to claim 4, characterized in that: The top of the positioning plate (302) is provided with a receiving groove (309) arranged along the outer contour of the product (400) to be tested. The positioning plate (302) and the cover plate (304) are each provided with two groups, and the two groups of the positioning plates (302) and the cover plates (304) are both mirror-symmetrical, so as to respectively position and accommodate two symmetrically arranged products (400) to be tested; The hinge seat (303) is provided with a hinge shaft (310) rotatably connected to the cover plate (304), the hinge shaft (310) is provided with a torsion spring (311) elastically supporting the cover plate (304) to flip upward, and lock buckles (308) for locking or unlocking the cover plate (304) are respectively provided on both sides of the base plate (301).

6. The integrating sphere type AR glasses optical detection device according to claim 1, characterized in that: The multi-axis driving module (210) comprises a Y-axis linear mechanism (230) fixed on the lower workbench (111), a Z-axis linear mechanism (240) connected to the Y-axis linear mechanism (230), and an X-axis linear mechanism (250) connected to the top of the Z-axis linear mechanism (240); The Y-axis linear mechanism (230) moves the product carrier (300) from the loading and unloading station to the detection station directly below the integrating sphere (130), the Z-axis linear mechanism (240) moves the product carrier (300) into or out of the light inlet of the integrating sphere (130), and the X-axis linear mechanism (250) is used to adjust the positions of the two groups of product carriers (300).

7. The integrating sphere type AR glasses optical detection device according to claim 6, characterized in that: The Y-axis linear mechanism (230) comprises a Y-axis linear module (231) and a Y-axis linear guide rail (232) which are parallel to each other and spaced apart and fixed on the lower workbench (111); a first slide seat (233) is connected to the Y-axis linear module (231) and the Y-axis linear guide rail (232); The Z-axis linear mechanism (240) comprises a Z-axis linear module (241) and a Z-axis linear guide rail (242) which are parallel to each other and spaced apart and fixed on the first slide (233); a second slide (243) is connected to the Z-axis linear module (241) and the Z-axis linear guide rail (242); and the X-axis linear mechanism (250) is fixed on the second slide (243); The lower workbench (111) is provided with an avoidance hole (112) located between the Y-axis linear module (231) and the Y-axis linear guide rail (232); the Z-axis linear module (241) is located in the avoidance hole (112); and the bottom of the lower workbench (111) is provided with a box-type cover (113) for closing the avoidance hole (112).

8. An integrating sphere type AR glasses optical detection device as claimed in claim 6 or 7, characterized in that: The X-axis linear mechanism (250) comprises a lower base (251) and an upper slide seat (252) located on the top of the lower base (251); the lower base (251) and the upper slide seat (252) are slidably connected via an X-axis linear guide rail (253); a micrometer rod (254) is provided on the lower base (251); and an adjustment seat (255) rotatably connected to the micrometer rod (254) is provided on the upper slide seat (252).

9. The integrating sphere type AR glasses optical detection device according to claim 1, characterized in that: The invention also comprises a casing (140), wherein the detection frame (100), the test carrier (200) and the product carrier (300) are all enclosed in the casing (140), and the casing (140) provides a darkroom environment for the product (400) to be tested. The side wall of the casing (140) is provided with a loading and unloading opening, and a lifting door (141) for closing the loading and unloading opening. The top of the casing (140) is provided with a fan filter (144).

10. The integrating sphere type AR glasses optical detection device according to claim 9, characterized in that: The outer wall of the housing (140) is provided with a corresponding grating (142) located at both sides of the loading and unloading ports. The outer wall of the housing (140) is also provided with a control terminal (143) connected to the spectrometer (131).

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