Near-to-eye display equipment detection device

Abstract

The utility model relates to a near-to-eye display equipment detection device, which is characterized in that a first position adjusting mechanism on a base at least comprises a first supporting part, a second supporting part and an obliquely arranged third supporting part which are parallel to each other, the third supporting part is provided with a first bent sliding rail and a first driving sliding block, and a fourth supporting part is fixedly arranged on the first driving sliding block; the second bending slide rail is provided with a second bending slide rail and a second driving slide block; the second position adjusting mechanism on the base at least comprises a camera; a laser collimator is fixedly arranged on the second driving sliding block; the third supporting part is provided with an extension part, one end of the extension part is provided with a sample table, and a three-dimensional displacement adjusting device is arranged between the extension part and the sample table; the driver is electrically connected with the first driving sliding block, the second driving sliding block and the second position adjusting mechanism. The device is simple in structure and convenient to operate, and is helpful for improving the accuracy of comprehensively testing the optical performance of the optical waveguide sheet aiming at different visual angles and improving the product yield.

Description

Technical Field

[0001] The utility model relates to the technical field of augmented reality, and particularly to a detection device for a near-eye display device. Background Art

[0002] With the rapid development of information technology, augmented reality and virtual reality have gradually become popular. Among them, an optical waveguide is a key component of a near-eye display device, which can transmit virtual images to the user's eyes, enabling the user to see the augmented reality effect. In the prior art for the detection of optical waveguide chips, the target in the collimator is illuminated by a light source and then becomes parallel light through the optical system of the collimator, and then forms an image on the camera at the corresponding field of view angle through the waveguide chip to be measured. For common detection devices, it is inconvenient to limit and fix the angle and project it onto the waveguide chip, or convert it to project onto the coupling area of the waveguide chip at multiple different angles, making it difficult to achieve accurate optical performance detection, reducing the detection accuracy, and resulting in problems such as low yield. Therefore, there is an urgent need for a detection device that can comprehensively detect the performance of optical waveguide chips from different perspectives to improve the product yield. Summary of the Utility Model

[0003] According to the problems existing in the prior art, the utility model provides a detection device for a near-eye display device.

[0004] The technical solution of the utility model is as follows:

[0005] A detection device for a near-eye display device, comprising:

[0006] A base, on which a first position adjustment mechanism and a second position adjustment mechanism are provided;

[0007] The first position adjustment mechanism at least includes a first support portion, a second support portion that are parallel to each other, and a third support portion that is inclined between the first support portion and the second support portion. A first curved slide rail is provided on the third support portion, and a first driving slider that is adapted to the first curved slide rail. The first curved slide rail and the first support portion, the second support portion are in the same plane; a fourth support portion is fixedly provided on the first driving slider, and at least a partial region at one end of the fourth support portion is fixedly provided with a second curved slide rail, and a second driving slider that is adapted to the second curved slide rail;

[0008] The second position adjustment mechanism at least includes a camera;

[0009] Among them, a laser collimator is fixedly provided on the second driving slider; at least a part of the middle of the third supporting part is provided with an extension part, and at least a part of the extension part is provided with a sample stage arranged in the direction of the camera. The sample stage includes a first surface and a second surface. The first surface is used to place the optical waveguide chip to be detected. The optical waveguide chip to be detected at least includes an input region and an output region. The light-emitting side of the laser collimator faces the input region, and the camera lens faces the output region; a three-dimensional displacement adjustment device is provided between the extension part and the sample stage;

[0010] A driver, which is electrically connected to the first driving slider, the second driving slider, and the second position adjustment mechanism.

[0011] As a preferred technical solution, both the first supporting part and the second supporting part are rectangular, and the length of the first supporting part is the same as or different from the length of the second supporting part.

[0012] As a preferred technical solution, the number of concave arc surfaces of the first bending slide rail is the same as or different from the number of concave arc surfaces of the second bending slide rail.

[0013] As a preferred technical solution, the radian of the concave arc surface of the first bending slide rail is the same as or different from the radian of the concave arc surface of the second bending slide rail.

[0014] As a preferred technical solution, the radian of the concave arc surface of the first bending slide rail and the radian of the concave arc surface of the second bending slide rail are both 45° - 270°.

[0015] As a preferred technical solution, the first bending slide rail and the second bending slide rail form a T shape.

[0016] As a preferred technical solution, the second position adjustment mechanism is a six-axis displacement adjustment device.

[0017] As a preferred technical solution, at least one groove is provided on the first surface of the sample stage, and the optical waveguide chip to be detected is placed in the groove.

[0018] As a preferred technical solution, the fourth supporting part is L-shaped.

[0019] As a preferred technical solution, both the first supporting part and the second supporting part are lifting frames.

[0020] The beneficial effects achieved by the technical solution adopted by the present utility model:

[0021] The present application provides a near-eye display device detection apparatus, which mainly includes a base. A first position adjustment mechanism and a second position adjustment mechanism are provided on the base. The first bending slide rail and the second bending slide rail provided in the first position adjustment mechanism facilitate controlling the light source of the laser collimator to be incident on the coupling region of the optical waveguide at different angles. The camera of the second position adjustment mechanism is used to image on the camera at the corresponding field of view angle through the waveguide under test. A three-dimensional displacement adjustment device is provided between the extension part and the sample stage, which facilitates precise position and pose adjustment of the laser collimator, so that an optimal incident angle is formed between the emitted light source and the coupling region. The apparatus has a simple and flexible structure, convenient test operation, and is also beneficial to improving the accuracy of comprehensive testing of the optical performance of the waveguide sheet for different viewing angles and increasing the product yield. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. The drawings form a part of the present invention. The schematic embodiments of the present invention and their explanations explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0023] Figure 1 It is a schematic structural diagram of the near-eye display device detection apparatus disclosed in this embodiment.

[0024] Description of the Reference Numerals:

[0025] Base 100; First support part 101; Second support part 102; Third support part 103; Fourth support part 104; First bending slide rail 105; First driving slider 106; Second bending slide rail 107; Second driving slider 108; Extension part 109; Laser collimator 110; Sample stage 111; Three-dimensional displacement adjustment device 112; Second position adjustment mechanism 200; Camera 201. Detailed Embodiments

[0026] To make the objectives, technical solutions, and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions of the present invention in conjunction with the specific embodiments and corresponding drawings of the present invention. In the description of the present invention, it should be noted that the term "or" is generally used in the sense of including "and / or", unless otherwise clearly specified in the content.

[0027] In the description of the present utility model, it should be understood that terms such as "first", "second", etc. are only for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" 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 an indirect connection through a medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] In addition, those skilled in the art should understand that in the disclosure of the present utility model, the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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. Therefore, the above terms should not be construed as limiting the present utility model.

[0029] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Embodiment

[0031] According to Figure 1 , this embodiment provides a near-eye display device detection apparatus, including:

[0032] A base 100, on which a first position adjustment mechanism and a second position adjustment mechanism 200 are provided;

[0033] The first position adjustment mechanism at least includes first support portions 101 and second support portions 102 that are parallel to each other, and a third support portion 103 that is inclined between the first support portion 101 and the second support portion 102. A first curved slide rail 105 is provided on the third support portion 103, and a first driving slider 106 that is adapted to the first curved slide rail 105. The first curved slide rail 105 and the first support portion 101 and the second support portion 102 are in the same plane; a fourth support portion 104 is fixedly provided on the first driving slider 106. At least a partial area at one end of the fourth support portion 104 is fixedly provided with a second curved slide rail 107 and a second driving slider 108 that is adapted to the second curved slide rail 107;

[0034] The second position adjusting mechanism 200 at least includes a camera 201;

[0035] Wherein, a laser collimator 110 is fixedly arranged on the second driving slider 108; at least a partial area of the middle part of the third supporting part 103 is provided with an extending part 109, at least a partial area of the extending part 109 is provided with a sample stage 111 arranged towards the direction of the camera 201. The sample stage 111 includes a first surface and a second surface. The first surface is used for placing the optical waveguide sheet to be detected. The optical waveguide sheet to be detected at least includes an input coupling area and an output coupling area. The light-emitting side of the laser collimator 110 faces the input coupling area, and the lens of the camera 201 faces the output coupling area; a three-dimensional displacement adjusting device 112 is arranged between the extending part 109 and the sample stage 111;

[0036] A driver, which is electrically connected to the first driving slider 106, the second driving slider 108, and the second position adjusting mechanism 200.

[0037] Based on the problems that it is difficult to achieve accurate optical performance detection in the existing detection equipment, the detection accuracy is reduced, and the yield is low, etc., this embodiment provides a near-eye display device detection device, which mainly includes a base 100. A first position adjusting mechanism and a second position adjusting mechanism 200 are arranged on the base 100. The first bending slide rail 105 and the second bending slide rail 107 arranged in the first position adjusting mechanism facilitate controlling the light source of the laser collimator 110 to be incident on the input coupling area of the optical waveguide at different angles; the camera 201 of the second position adjusting mechanism 200 is used for imaging on the camera 201 at the corresponding field of view angle through the waveguide to be detected; a three-dimensional displacement adjusting device 112 is arranged between the extending part 109 and the sample stage 111, which is convenient for accurately adjusting the position and pose of the laser collimator 110, so that the best incident angle is formed between the emitted light source and the input coupling area. The device has a simple and flexible structure, convenient test operation, and is also beneficial to improving the accuracy of comprehensive testing of the optical performance of the optical waveguide sheet for different viewing angles and increasing the product yield.

[0038] Preferably, both the first supporting part 101 and the second supporting part 102 are rectangular, and the length of the first supporting part 101 is the same as or different from the length of the second supporting part 102.

[0039] Preferably, at least one groove is provided on the first surface of the sample stage 111, and the optical waveguide sheet to be detected is placed in the groove.

[0040] Specifically, according to Figure 1, at least two mutually parallel first support portions 101 and second support portions 102 are provided on the base 100. It can be understood that the base 100 is provided with the mutually parallel first support portion 101, second support portion 102 and third support portion 103. A plurality of support portions with different heights can also be provided in the gap between the first support portion 101 and the second support portion 102. These support portions are arranged at equal intervals and increase in height from left to right starting from the first support portion 101. The second support portion 102 is the highest. The third support portion 103 is inclined and arranged between the first support portion 101 and the second support portion 102, that is, one end of the third support portion 103 is arranged on the first support portion 101 and the other end thereof is arranged at the top of the second support portion 102. It can also be that there are only the first support portion 101 and the second support portion 102, and the first support portion 101 and the second support portion 102 have the same length. The third support portion 103 is inclined and arranged between the first support portion 101 and the second support portion 102.

[0041] According to Figure 1 As shown, a first curved slide rail 105 is provided on the third support portion 103, and a first driving slider 106 that is adapted to the first curved slide rail 105. It can be selected to fixedly connect one end of the third support portion 103 to one end of the first curved slide rail 105, and fixedly connect the other end of the third support portion 103 to the other end of the first curved slide rail 105. The first curved slide rail 105 has more than one concave arc surface, and the concave rail groove faces the direction of the second position adjusting mechanism 200.

[0042] Furthermore, a fourth support portion 104 is fixedly provided on the first driving slider 106. Preferably, a second curved slide rail 107 is provided in one end region of the fourth support portion 104, and a second driving slider 108 that is adapted to the second curved slide rail 107. The second curved slide rail 107 has more than one concave arc surface, and the concave rail groove faces the direction of the base 100. A laser collimator 110 is fixedly provided on the second driving slider 108, and the light source direction of the laser collimator 110 faces the sample stage 111.

[0043] Furthermore, in the middle of the third support portion 103, preferably at a position close to one-third of the end portion and close to one end of the first support portion 101, an extension portion 109 is fixedly provided. The direction is the same as and parallel to the direction of the second curved slide rail 107. In a preferred embodiment, the extension portion 109 is rectangular. One end portion of the extension portion 109 is perpendicular and fixedly connected to one surface of the third support portion 103. It is also possible to make the third support portion 103 and the extension portion 109 into an integral body, so that the overall state of the first position adjusting mechanism is stable when driving the first driving slider 106 and / or the first driving slider 106.

[0044] Further, at least a partial area at one end of the extension part 109 is provided with a sample stage 111. The direction of the sample stage 111 faces the direction of the camera 201 and is located above the camera 201. The sample stage 111 includes a first surface and a second surface. The first surface is used for placing the optical waveguide sheet to be detected. The camera 201 is arranged adjacent to the second surface. Wherein, a groove can be provided on the first surface of the sample stage 111, and the shape of the groove is set according to the actual size of the optical waveguide sheet to be measured for limiting the position of the optical waveguide sheet to be detected. The optical waveguide sheet to be detected at least includes an input coupling area and an output coupling area. The light-emitting side of the laser collimator 110 faces the input coupling area, and the lens of the camera 201 faces the output coupling area; a three-dimensional displacement adjustment device 112 is provided between the extension part 109 and the sample stage 111. In actual operation, the specific position of the laser collimator 110 is fixed through the first bending slide rail 105 and the second bending slide rail 107. According to actual requirements, the position of the sample stage 111 can be further finely adjusted through the three-dimensional displacement adjustment device 112. The shape of the sample stage 111 can be selected as rectangular or circular, which is limited according to actual selection.

[0045] For the above-mentioned first support part 101, second support part 102, and third support part 103, the base 100 is preferably made of the same material, such as wood, which is convenient for fixing and saves costs. For the above fixing method, screw fixing or other methods that can play a firm role can be selected, and specific limitations are not made here.

[0046] Preferably, the number of concave arc surfaces of the first bending slide rail 105 is the same as or different from the number of concave arc surfaces of the second bending slide rail 107.

[0047] Preferably, the radian of the concave arc surface of the first bending slide rail 105 is the same as or different from the radian of the concave arc surface of the second bending slide rail 107.

[0048] Preferably, the radian of the concave arc surface of the first bending slide rail 105 and the radian of the concave arc surface of the second bending slide rail 107 are both 45° - 270°.

[0049] Preferably, the first bending slide rail 105 and the second bending slide rail 107 form a T shape.

[0050] Specifically, the first bending slide rail 105 and the second bending slide rail 107 in this embodiment can be understood as follows: the first bending slide rail 105 has multiple bent slide rails, and the slide rail formed by connecting the head and the tail is similar to a wavy line as a whole. The first driving slider 106 is arranged on the concave rail groove of the first bending slide rail 105. Similarly, the second bending slide rail 107 has multiple bent slide rails, and the slide rail formed by connecting the head and the tail. The second driving slider 108 is arranged on the concave rail groove of the first bending slide rail 105. The first bending slide rail 105 and the second bending slide rail 107 form a T shape as a whole. In a preferred embodiment, the number of concave arc surfaces of the first bending slide rail 105 and the number of concave arc surfaces of the second bending slide rail 107 can be the same or different. For example, the first bending slide rail 105 has three concave arc surfaces, all between 45° and 90°, which can be of the same bending degree, or of different bending degrees, or partially of the same bending degree. Or the first bending slide rail 105 has only one concave arc surface, and the concave arc surface can be 180°, or between 180° and 270°, which can be set according to actual needs. In another embodiment, if the first bending slide rail 105 has more than two concave arc surfaces and the second bending slide rail 107 has one concave arc surface, or the first bending slide rail 105 has one concave arc surface and the second bending slide rail 107 has more than two concave arc surfaces, or the first bending slide rail 105 has more than two concave arc surfaces and the second bending slide rail 107 has more than two concave arc surfaces. Among them, whether the first bending slide rail 105 has more than two concave arc surfaces or the second bending slide rail 107 has more than two concave arc surfaces, the concave arc surfaces can be the same or different. For example, they can all be 45°, or some of them can be 45°. The above-mentioned multiple setting methods are helpful for comprehensively testing the optical performance of the optical waveguide sheet from different perspectives with accuracy. For the specific setting method, it can be flexibly selected according to actual needs.

[0051] Preferably, the second position adjusting mechanism 200 is a six-axis displacement adjusting device.

[0052] Specifically, a camera 201 is arranged on the six-axis displacement adjusting device so as to adjust the position of the camera 201 via the six-axis displacement adjusting device. The six-axis displacement adjusting device can also be called a six-degree-of-freedom adjusting device, which can realize multi-degree-of-freedom direction adjustment, facilitating shooting and analysis for comprehensively testing the optical performance of the optical waveguide sheet from different perspectives with accuracy. In actual operation, the captured optical information is transmitted to a computer for analysis to improve the product yield. The three-axis displacement adjusting device and the six-axis displacement adjusting device are designed to realize multi-dimensional position adjustment, and their specific structures are not specifically limited in this embodiment.

[0053] Preferably, the fourth support portion 104 is L-shaped.

[0054] Preferably, the first support portion 101 and the second support portion 102 are lifting frames.

[0055] Specifically, to facilitate the firm position of the second bending slide rail 107 and the first driving slider 106, the fourth support portion 104 is preferably L-shaped. One end of the fourth support portion 104 is fixedly connected to the first driving slider 106, and the other end is fixedly connected to the second bending slide rail 107. In a preferred embodiment, when there are only the first support portion 101 and the second support portion 102, both of them can be set as lifting frames to facilitate the adjustment of the relative position between the camera 201 and the sample stage 111.

[0056] The above has introduced in detail an in-eye display device detection device according to an embodiment of the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A near-eye display device detection apparatus, characterized in that, Comprising: A base, on which a first position adjusting mechanism and a second position adjusting mechanism are provided; The first position adjusting mechanism at least comprises a first support part, a second support part which are parallel to each other, and a third support part which is inclined between the first support part and the second support part. A first bending slide rail is provided on the third support part, and a first driving slider which is matched with the first bending slide rail. The first bending slide rail and the first support part, the second support part are in the same plane; A fourth support part is fixedly provided on the first driving slider. At least a partial area at one end of the fourth support part is fixedly provided with a second bending slide rail, and a second driving slider which is matched with the second bending slide rail; The second position adjusting mechanism at least comprises a camera; Wherein, a laser collimator is fixedly provided on the second driving slider; At least a partial area in the middle of the third support part is provided with an extension part. At least a partial area of the extension part is provided with a sample stage which is arranged towards the camera direction. The sample stage comprises a first surface and a second surface. The first surface is used for placing the optical waveguide chip to be detected. The optical waveguide chip to be detected at least comprises an optical coupling-in area and an optical coupling-out area. The light-emitting side of the laser collimator faces the optical coupling-in area, and the camera lens faces the optical coupling-out area; A three-dimensional displacement adjusting device is arranged between the extension part and the sample stage; A driver, which is electrically connected to the first driving slider, the second driving slider and the second position adjusting mechanism.

2. The near-eye display device detection apparatus according to claim 1, wherein Both the first support part and the second support part are rectangular, and the length of the first support part is the same as or different from the length of the second support part.

3. The near-eye display device detection apparatus according to claim 1, wherein, The number of concave arc surfaces of the first bending slide rail is the same as or different from the number of concave arc surfaces of the second bending slide rail.

4. The near-eye display device detection apparatus according to claim 3, wherein The radian of the concave arc surface of the first bending slide rail is the same as or different from the radian of the concave arc surface of the second bending slide rail.

5. The near-eye display device detection apparatus according to claim 4, wherein, The radian of the concave arc surface of the first bending slide rail and the radian of the concave arc surface of the second bending slide rail are both 45°-270°.

6. The near-eye display device detection apparatus according to claim 3, wherein The first bending slide rail and the second bending slide rail form a T shape.

7. The near-eye display device detection apparatus according to any one of claims 1-6, characterized in that The second position adjusting mechanism is a six-axis displacement adjusting device.

8. The near-eye display device detection apparatus according to any one of claims 1-6, characterized in that, At least one groove is provided on the first surface of the sample stage, and the optical waveguide chip to be detected is placed in the groove.

9. The near-eye display device detection apparatus according to any one of claims 1-6, characterized in that, The fourth support part is L-shaped.

10. The near-eye display device detection apparatus according to any one of claims 1-6, characterized in that, Both the first support part and the second support part are lifting frames.

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