VR glasses lens light transmission testing device

Abstract

The invention belongs to the technical field of light transmittance testing, and particularly relates to a VR glasses lens light transmittance testing device which comprises a working table, an adjusting assembly is installed on the working table and driven by a transmission assembly, a supporting plate is installed on the working table, a testing assembly is installed on the supporting plate, and a testing table is installed on the working table. The testboard is located at the bottom of the test assembly. The method comprises the following steps: attaching a lens to a protection pad at the bottom of a reflecting plate, and then adjusting the relative position of an auxiliary tester by a cylinder II, so that the auxiliary tester irradiates the reflecting plates on the two sides respectively; meanwhile, the incident angle of the light of the auxiliary tester is adjusted through the motor, in the testing process, the light of the auxiliary tester perpendicularly acts on the edge area of the lens, the propagation path of the light in the lens is reduced, light reflection is reduced, the measurement error of the edge area of the lens is reduced, and the accurate light transmittance of the lens is provided.

Description

Technical Field

[0001] The present invention belongs to the technical field of light transmittance testing, and in particular relates to a light transmittance testing device for VR glasses lenses. Background Art

[0002] VR glasses, also known as virtual reality head-mounted display devices, are a technological product that brings users into the virtual world by simulating sensory experiences such as vision and hearing.

[0003] In the process of producing VR glasses, it is necessary to test the transmittance of the glasses lenses. The testing principle is mainly to generate light in a specific wavelength range, let the light pass through the lens, and then detect the intensity of the transmitted light, where the light intensity is affected by the angle of incidence of the light. Since the VR glasses lenses have a curved surface, the incident angle of the light in the edge area is no longer vertical, but is inclined at a certain angle. According to the law of refraction (Snell's law), oblique incidence will cause the propagation path of light inside the lens to become longer, and may also produce more reflections and scattering, resulting in a significant attenuation of light intensity. Therefore, the error in detecting light intensity gradually increases from the center area to the edge area of ​​the lens. Based on this, the present invention provides a VR glasses lens transmittance testing device that can reduce reflections in the edge area of ​​the lens and reduce measurement errors. Summary of the Invention

[0004] The purpose of the present invention is to provide a VR glasses lens light transmittance testing device to address the shortcomings of the existing technology and solve the technical problems in the existing technology.

[0005] The objectives of the present invention can be achieved through the following technical solutions: A VR glasses lens light transmittance testing device, which includes a workbench, an adjustment component is installed on the workbench, the adjustment component is driven by a transmission component, a support plate is installed on the workbench, a test component is installed on the support plate, a test bench is installed on the workbench, and the test bench is located at the bottom of the test component; the test bench includes a main tester, an arc plate is installed on the main tester, a longitudinal groove is provided on the arc plate, a sub-tester is slidably installed in the longitudinal groove, and the sub-tester is driven by an electric motor; the adjustment component includes a base plate, a cylinder 1 is installed on the base plate, a lifting plate is installed on the output end of the cylinder 1, a slide is slidably installed on the lifting plate, a reflective plate is rotatably installed on the slide, and a protective pad is installed at the bottom of the reflective plate; when in use, the protective pad is first attached to the mirror surface, and then the reflective plate is irradiated by the sub-tester, and the reflective plate reflects the light of the sub-tester. When the receiver on the sub-tester receives the reflected light, the sub-tester completes the adjustment, and the reflective plate is removed for testing.

[0006] As a further optimization or improvement of this solution, the transmission assembly includes a transmission box, screw rod one and screw rod two are installed on the workbench, and screw rod one and screw rod two are respectively connected to the base plate; screw rod three is installed on the workbench, and screw rod three is connected to the test bench, and the built-in motor in the transmission box drives screw rod three to rotate.

[0007] As a further optimization or improvement of this solution, the slides are connected to the lifting plates via springs, and the slides are arranged in three groups. The reflective plates on the slides correspond to the main tester and the auxiliary testers on both sides of the main tester.

[0008] As a further optimization or improvement of this solution, cylinder 2 is installed on the support plate, a slide plate is installed on the main tester, a slider is installed on the slide plate for longitudinal sliding, cylinder 2 drives the slider to move, and the slider is connected to the auxiliary tester through a connecting rod.

[0009] As a further optimization or improvement of this solution, a sliding sleeve is slidably installed on the arc plate, the sliding sleeve is installed on the motor, a transverse groove is opened on the arc plate, and the output shaft of the motor passes through the transverse groove to connect to the auxiliary tester.

[0010] As a further optimization or improvement of this solution, an angle scale is installed on the skateboard and a pointer is installed on the protection pad.

[0011] As a further optimization or improvement of this solution, a light receiver is installed on the auxiliary tester, and the light receiver is located on both sides of the transmitter of the auxiliary tester.

[0012] Beneficial effects of the present invention: (1) The present invention uses cylinder 1 to control the downward movement of the lifting plate, which drives the reflective plate to move downward synchronously through the slide plate, and the protective pad at the bottom of the reflective plate is in contact with the lens. Cylinder 2 controls the slider to move along the slide groove on the slide plate, thereby adjusting the relative position of the auxiliary tester so that the auxiliary tester can illuminate the reflective plates on both sides respectively. At the same time, the incident angle of the auxiliary tester light is adjusted by the motor. When the light reflected by the reflective plate acts on the light receiver on the auxiliary tester, it means that the light is perpendicular to the reflective plate. During the test process, the light from the auxiliary tester acts perpendicularly on the edge area of ​​the lens, reducing the propagation path of the light inside the lens, reducing light reflection, reducing the measurement error of the edge area of ​​the lens, and providing accurate light transmittance of the lens.

[0013] (2) The present invention moves the reflector downward, and the protective pad at the bottom of the middle reflector first contacts the lens. The pointer on the protective pad is observed to determine whether the protective pad rotates. If the protective pad rotates, it means that the position is not the center of the lens. The position of the test bench is adjusted so that the pointer on the protective pad corresponds to the zero degree position on the angle scale. As the slide moves downward, the protective pads on the bottom of the two side reflectors fit into the edge of the mirror. When the protective pads are completely in contact with the mirror, the rotation angle of the protective pads is equal to the curvature of the mirror, making the rotation angles of the two side reflectors the same. The lens measurement point is symmetrical, and the mirror thickness at the measurement point area illuminated by the auxiliary tester is the same, thereby eliminating the influence of the lens thickness on the transmittance. Since the mirror thickness in the edge area illuminated by the auxiliary testers on both sides of the main tester is the same, the two sets of data obtained are compared and analyzed to judge the coating uniformity of the edge area. If the two sets of transmittance data are the same or the deviation is within the allowable range, it means that the mirror coating uniformity is good; if one of the two sets of data has a larger deviation, it means that the coating on the side with higher transmittance is poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a front view of the overall structure of the present invention.

[0017] Figure 3 A schematic diagram of the overall structure of the test component.

[0018] Figure 4 This is the matching diagram of the connecting rod and the auxiliary tester.

[0019] Figure 5 It is a schematic diagram of the overall structure of the transmission component.

[0020] Figure 6 Schematic diagram of the overall structure of the adjustment component.

[0021] Figure 7 Schematic diagram of the reflector and protective pad structure.

[0022] Figure 8 Schematic diagram of the working status of the adjustment component.

[0023] The following are marked in the figure: 1. Workbench; 2. Support plate; 3. Transmission assembly; 301. Transmission box; 302. Screw rod one; 303. Screw rod two; 304. Screw rod three; 4. Test bench; 5. Adjustment assembly; 501. Base plate; 502. Cylinder one; 503. Lifting plate; 504. Slide plate; 505. Spring; 506. Reflection plate; 507. Protection pad; 6. Test assembly; 601. Main tester; 602. Cylinder two; 603. Slide plate; 604. Slide; 605. Connecting rod; 606. Arc plate; 607. Auxiliary tester; 608. Sleeve; 609. Motor; 610. Horizontal slot; 611. Longitudinal slot; 7. Pointer; 8. Angle scale. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0025] See also Figures 1-8 A VR glasses lens transmittance testing device, comprising a workbench 1, an adjustment component 5 is mounted on the workbench 1, the adjustment component 5 is driven by a transmission component 3, a support plate 2 is mounted on the workbench 1, a test component 6 is mounted on the support plate 2, a test table 4 is mounted on the workbench 1, and the test table 4 is located at the bottom of the test component 6; the test component 6 comprises a main tester 601, an arc-shaped plate 606 is mounted on the main tester 601, a longitudinal groove 611 is provided on the arc-shaped plate 606, a sub-tester 607 is slidably mounted in the longitudinal groove 611, and the sub-tester 607 is driven by a motor 609; the adjustment component 5 includes a The base plate 501 is provided with a cylinder 502, a lifting plate 503 is provided at the output end of the cylinder 502, a slide plate 504 is slidably provided on the lifting plate 503, a reflecting plate 506 is rotatably provided on the slide plate 504, and a protective pad 507 is provided at the bottom of the reflecting plate 506; when in use, the protective pad 507 is first fitted to the mirror surface, and then the reflecting plate 506 is illuminated by the auxiliary tester 607, and the reflecting plate 506 reflects the light of the auxiliary tester 607. When the receiver on the auxiliary tester 607 receives the reflected light, that is, the auxiliary tester 607 has completed the adjustment, the reflecting plate 506 can be removed for testing.

[0026] Specifically, the second cylinder 602 is installed on the support plate 2, the slide plate 603 is installed on the main tester 601, and the slider 604 is installed on the slide plate 603 for longitudinal sliding. The second cylinder 602 drives the slider 604 to move, and the slider 604 is connected to the auxiliary tester 607 through the connecting rod 605.

[0027] Specifically, the auxiliary tester 607 is equipped with a light receiver, which is located on both sides of the transmitter of the auxiliary tester 607 .

[0028] It should be noted that a light shield is installed on the workbench 1, which is used to cover the test device. During the test, the light shield can reduce the impact of external light on the test. Figure 6 The reflective plates 506 are provided in three groups, namely a middle reflective plate 506 and two side reflective plates 506 .

[0029] It should be noted that before the test, the cleaned VR glasses lens is placed on the test bench 4, and the built-in motor of the transmission box 301 drives the screw 1 302 and the screw 2 303 to rotate, thereby controlling the substrate 501 to move toward the test bench 4, and stops when the reflector 506 moves to the top of the lens.

[0030] Activate cylinder 1 502, which controls the downward movement of the lifting plate 503. The lifting plate 503 drives the reflective plates 506 to move downward synchronously via the slide plate 504. As the reflective plates 506 move downward, the protective pads 507 at the bottom of the middle reflective plate 506 first contact the center area of ​​the lens. As the lifting plate 503 continues to move downward, the springs 505 corresponding to the middle reflective plate 506 are stretched, applying pressure to the protective pads 507 through the springs 505, thereby fixing the current position of the lens. As the lifting plate 503 continues to move downward, the protective pads 507 at the bottom of the reflective plates 506 on both sides contact the edge areas of the lens. Figure 8 shown.

[0031] Cylinder 2 602 is activated, controlling the slider 604 to move along the slots on the slide plate 603. During this process, slider 604, via connecting rod 605, drives the auxiliary testers 607 on either side of the main tester 601 to slide along the longitudinal slots 611, thereby adjusting the relative positions of the auxiliary testers 607 so that they illuminate the reflectors 506 on either side. Simultaneously, motor 609 adjusts the incident angle of light from the auxiliary testers 607. When light reflected from the reflectors 506 strikes the light receivers on the auxiliary testers 607, indicating that the light is perpendicular to the reflectors 506, motor 609 and cylinder 2 602 are deactivated. Cylinder 1 502 drives the lifting plate 503 back to its original position, and the transmission assembly 3 then drives the base plate 501 away from the test table 4. During the test, the light from the auxiliary testers 607 strikes the lens edge perpendicularly, reducing the light propagation path within the lens, minimizing light reflections, and lowering measurement errors at the lens edge, thus providing accurate transmittance.

[0032] It should be noted that when the main tester 601 illuminates the lens, the light completely covers the lens. The present invention measures the transmittance of the lens's central area and the transmittance of the lens's edge area, where errors exist, by illuminating the lens with the main tester 601. The transmittance of the lens's edge area, where errors exist, is compared with the transmittance of the lens's edge area to serve as data for analyzing angle insensitivity. The present invention utilizes these two comparisons to analyze the lens's angle insensitivity.

[0033] See also Figure 3-Figure 4 A sleeve 608 is slidably mounted on the arc plate 606 , a motor 609 is mounted on the sleeve 608 , a transverse slot 610 is provided on the arc plate 606 , and an output shaft of the motor 609 passes through the transverse slot 610 to connect to the auxiliary tester 607 .

[0034] It should be noted that the slider 604 is driven by the second cylinder 602 to slide along the slide groove on the slide groove plate 603 , thereby changing the light emission point of the auxiliary tester 607 .

[0035] See also Figure 5 The transmission assembly 3 includes a transmission box 301, and screw rod 1 302 and screw rod 2 303 are installed on the workbench 1, and screw rod 1 302 and screw rod 2 303 are respectively connected to the base plate 501; screw rod 3 304 is installed on the workbench 1, and screw rod 3 304 is connected to the test bench 4, and the built-in motor of the transmission box 301 drives screw rod 3 304 to rotate.

[0036] It should be noted that the transmission box 301 has two sets of motors built in, one set is used to drive the screw rod 3 304 to rotate, and the other set is used to drive the screw rod 1 302 and the screw rod 2 303 to rotate synchronously.

[0037] See also Figure 2-Figure 7 The slide plates 504 are connected to the lifting plates 503 via springs 505 . The slide plates 504 are arranged in three groups. The reflective plates 506 on the slide plates 504 correspond to the main tester 601 and the auxiliary testers 607 on both sides of the main tester 601 .

[0038] Specifically, an angle scale 8 is installed on the slide plate 504 , and a pointer 7 is installed on the protection pad 507 .

[0039] It should be noted that the reflective plates 506 are provided in three groups, namely a middle reflective plate 506 and two side reflective plates 506 .

[0040] It should be noted that the transmittance of the lens is not only affected by the incident angle of light, but also by the thickness of the lens and the uniformity of the coating on the lens.

[0041] The center of the curved lenses in existing VR glasses is typically thicker; the thickness of the lens surface gradually increases from the center to the edge. Therefore, when testing the transmittance of the lens edge, the transmittance will vary depending on the measurement point on the lens. In order to eliminate the influence of lens thickness on transmittance, the uniformity of the coating can be determined.

[0042] In the present invention, the reflective plate 506 moves downward, and the protective pad 507 at the bottom of the middle reflective plate 506 first contacts the lens. By observing the pointer 7 on the protective pad 507, it is determined whether the protective pad 507 rotates. If the protective pad 507 rotates, it means that the position is not the center of the lens. By adjusting the position of the test table 4, the pointer 7 on the protective pad 507 corresponds to the zero degree position on the angle scale 8.

[0043] As the slide plate 504 moves downward, the protective pads 507 at the bottom of the two side reflectors 506 adhere to the edge areas of the mirror surface. Figure 7 The protective pad 507 and the reflective plate 506 rotate, and the angle of the protective pad 507 changes. When the protective pad 507 is completely in contact with the mirror surface, the rotation angle of the protective pad 507 is equal to the curvature of the mirror surface, so that the rotation angles of the two reflective plates 506 on both sides are the same, the lens measurement point is symmetrical, and the mirror thickness of the measurement point area illuminated by the light of the auxiliary tester 607 is the same, thereby eliminating the influence of the lens thickness on the transmittance.

[0044] Since the mirror thickness of the edge area illuminated by the auxiliary testers 607 on both sides of the main tester 601 is the same, the two sets of data obtained are compared and analyzed to judge the coating uniformity of the edge area. If the two sets of transmittance data are the same or the deviation is within the allowable range, it means that the mirror coating is uniform; if one of the two sets of data has a larger deviation, it means that the side with higher mirror transmittance has poor coating.

[0045] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A VR glasses lens light transmittance testing device, characterized by: The invention comprises a workbench (1), an adjusting assembly (5) is installed on the workbench (1), the adjusting assembly (5) is driven by a transmission assembly (3), a support plate (2) is installed on the workbench (1), a test assembly (6) is installed on the support plate (2), a test bench (4) is installed on the workbench (1), and the test bench (4) is located at the bottom of the test assembly (6); The test assembly (6) includes a main tester (601), an arc-shaped plate (606) is installed on the main tester (601), a longitudinal groove (611) is provided on the arc-shaped plate (606), a secondary tester (607) is slidably installed in the longitudinal groove (611), and the secondary tester (607) is driven by a motor (609); The adjustment component (5) includes a base plate (501), a cylinder 1 (502) is installed on the base plate (501), a lifting plate (503) is installed on the output end of the cylinder 1 (502), a slide plate (504) is slidably installed on the lifting plate (503), a reflecting plate (506) is rotatably installed on the slide plate (504), and a protective pad (507) is installed on the bottom of the reflecting plate (506); when in use, the protective pad (507) is first attached to the mirror surface, and then the reflecting plate (506) is illuminated by the auxiliary tester (607), and the reflecting plate (506) reflects the light of the auxiliary tester (607). When the receiver on the auxiliary tester (607) receives the reflected light, the auxiliary tester (607) completes the adjustment, and the reflecting plate (506) is removed to perform the test.

2. The VR glasses lens light transmittance testing device according to claim 1, characterized in that: The transmission assembly (3) includes a transmission box (301), a screw rod (302) and a screw rod (303) are installed on the workbench (1), and the screw rod (302) and the screw rod (303) are respectively connected to the base plate (501); the screw rod (304) is installed on the workbench (1), and the screw rod (304) is connected to the test bench (4). The transmission box (301) has a built-in motor to drive the screw rod (304) to rotate.

3. The VR glasses lens light transmittance testing device according to claim 1, characterized in that: The slide plates (504) are connected to the lifting plate (503) via springs (505). The slide plates (504) are arranged in three groups. The reflective plates (506) on the slide plates (504) correspond to the main tester (601) and the auxiliary testers (607) on both sides of the main tester (601).

4. The VR glasses lens light transmittance testing device according to claim 1, characterized in that: The support plate (2) is mounted with a second cylinder (602), the main tester (601) is mounted with a chute plate (603), the chute plate (603) is mounted with a slider (604) for longitudinal sliding, the second cylinder (602) drives the slider (604) to move, and the slider (604) is connected to the auxiliary tester (607) via a connecting rod (605).

5. The VR glasses lens light transmittance testing device according to claim 1, characterized in that: A sliding sleeve (608) is slidably mounted on the arc plate (606), a motor (609) is mounted on the sliding sleeve (608), a transverse slot (610) is provided on the arc plate (606), and an output shaft of the motor (609) passes through the transverse slot (610) and is connected to the auxiliary tester (607).

6. The VR glasses lens light transmittance testing device according to claim 1, characterized in that: An angle scale (8) is installed on the slide plate (504), and a direction marker (7) is installed on the protection pad (507).

7. The VR glasses lens light transmittance testing device according to claim 1, characterized in that: A light receiver is installed on the auxiliary tester (607), and the light receiver is located on both sides of the transmitter of the auxiliary tester (607).

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