Detection device of diffraction optical waveguide

Abstract

The utility model provides a detection device of a diffraction optical waveguide. The detection device comprises an ambient light source, a diffraction optical waveguide test board, an image acquisition device and an image detection device, the environment light source is arranged on the moving assembly in a sliding mode, and the environment light source is configured to face the position where the diffracted optical waveguide is located and can adjust different longitudes and / or latitudes of the environment light source relative to the diffracted optical waveguide; the image acquisition device is located on one side, far away from the environment light source, of the diffraction optical waveguide, and the image acquisition device is used for acquiring diffraction images, such as a rainbow effect, of the diffraction optical waveguide under different longitudes and / or latitudes; the image detection device is connected with the image acquisition device and is used for receiving and analyzing the diffraction image; the problem of quantitative analysis of a single rainbow pattern is solved, the position relation of the relative plane of the waveguide and the environment light source is adjusted, and the position of the light outlet of the environment light source is adjusted to change the environment light source at different longitudes and / or latitudes so as to simulate the east-rising and west-falling conditions of the environment light source.

Description

Technical Field

[0001] The utility model relates to the technical field of optics, in particular to a detection device for a diffraction optical waveguide. Background Art

[0002] Since the diffraction light waveguide has different display effects in different environments, especially the display effects presented by the waveguide may be different under different ambient light illumination, when the ambient light is incident on the diffraction light waveguide, it is easy to produce diffraction phenomenon in the structural area, which makes it easy to form rainbow patterns at the imaging point of the human eye. The rainbow patterns will affect the display effect of the waveguide, causing the rainbow patterns to overlap or superimpose with the light emitted by the optical machine, affecting the display effect when worn.

[0003] In the test of diffraction optical waveguides, how to effectively test the size, position, azimuth, brightness and other information of the rainbow pattern is important to those skilled in the art; due to the complexity of the use scenarios of diffraction optical waveguides, especially at different longitudes and latitudes, how to truly simulate the use environment of the waveguide, how to effectively and accurately test the rainbow pattern information of the diffraction optical waveguide is very important to those skilled in the art. After searching, there is a solution in the prior art that uses an integrating sphere to measure the rainbow pattern, but it can only perform a single quantitative analysis and cannot realize the test of information such as the size, area, position, azimuth and other information of the rainbow pattern, which is difficult to meet daily testing requirements. Therefore, how to efficiently test the multi-dimensional information of the rainbow pattern of the waveguide is an urgent problem to be solved. Utility Model Content

[0004] The embodiment of the utility model provides a detection device for a diffraction optical waveguide to solve the problems existing in the prior art. Through the detection device, the image size, brightness distribution, area size, intensity distribution, color distribution and azimuth of the rainbow pattern generated by the waveguide at different longitudes and / or latitudes can be accurately obtained, which is important for those skilled in the art.

[0005] The utility model provides a detection device for a diffraction optical waveguide, comprising an ambient light source, a diffraction optical waveguide test bench, an image acquisition device and an image detection device;

[0006] The ambient light source is slidably disposed on the moving component, and the ambient light source is configured to face the position where the diffractive light waveguide is located and can be adjusted to different longitudes and / or latitudes of the ambient light source relative to the diffractive light waveguide;

[0007] The image acquisition device is located on a side of the diffraction light waveguide away from the ambient light source, and is used to acquire diffraction images of the diffraction light waveguide at different longitudes and / or latitudes;

[0008] The image detection device is connected to the image acquisition device and is used to receive and analyze the diffraction image.

[0009] In particular, in some embodiments, the diffraction image includes a rainbow image.

[0010] Furthermore, the geometric center of the diffractive light waveguide and the center position of the ambient light source are on the same axis, and the diffractive light waveguide and the ambient light source can move relative to each other on the same axis.

[0011] Further, in some embodiments, the longitude is defined as the angle formed between the center position of the diffraction light waveguide and the ambient light source and the 0° scale line, and different longitude angles are formed by adjusting the position of the light outlet of the ambient light source; the latitude is defined as the angle between the center position of the diffraction light waveguide and the line connecting the plane position of the ambient light source in the direction of the center position of the diffraction light waveguide, and the relative distance between the diffraction light waveguide and the ambient light source in the direction of the center position is adjusted to form different latitude angles.

[0012] In some embodiments, the ambient light source has a light outlet, and the position of the light outlet can be adjusted to different positions of the ambient light source.

[0013] In some embodiments, the ambient light source is ring-shaped, and the position of the light outlet moves in a ring to simulate the rising of ambient light in the east and setting of the ambient light in the west.

[0014] In some embodiments, the surface of the ambient light source has a light shielding layer, which is slidably disposed on the surface of the ambient light source.

[0015] In some embodiments, the shading layer has scale lines, and the shading layer has position markings corresponding to the ambient light source at the determined 0° scale line.

[0016] In some embodiments, the optical lens and the image acquisition device are slidably arranged on a gantry.

[0017] In some embodiments, an optical lens is also included, and the optical lens is arranged at the front end of the image acquisition device.

[0018] The utility model proposes a detection device for a diffraction optical waveguide. Firstly, the detection device gives priority to the diffraction problem of the diffraction optical waveguide at different longitudes and / or latitudes, such as the rainbow pattern effect, while overcoming the problem that only a single rainbow pattern quantitative analysis can be achieved in the prior art. By adjusting the positional relationship between the diffraction optical waveguide and the ambient light source relative to the plane, and simultaneously adjusting the position of the ambient light source outlet to change the ambient light source at different longitudes and / or latitudes, the detection device simulates the situation of the ambient light source rising in the east and setting in the west.

[0019] Furthermore, the present application realistically simulates the environment in which the diffraction optical waveguide is located, and comprehensively reflects the diffraction phenomenon in different scenarios from multiple dimensions, so as to obtain multi-dimensional information such as the diffraction image brightness, area size, intensity distribution, color distribution and azimuth of the diffraction optical waveguide, and provide technical reference for technical personnel in this field to comprehensively judge the rainbow pattern, which has unexpected technical effects; at the same time, through the device structure of the present application, the detection rate of the diffraction optical waveguide can be improved, the qualified rate of the product can be improved, and good economic benefits can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic structural diagram of a diffraction optical waveguide detection device provided by the utility model;

[0022] Figure 2(a) to Figure 2(b) A schematic diagram of the structure of an ambient light source of a diffraction optical waveguide detection device provided by the utility model;

[0023] Figure ID:

[0024] 1: Ambient light source; 2: Diffraction light waveguide test bench; 3: Optical lens; 4: Image acquisition device; 5: Moving component; 6: Gantry; 7: Waveguide moving part; 8: Substrate; 11: Light outlet. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] The utility model provides a new idea to solve the problem of testing waveguides in different use environments in the prior art, especially the problem of testing at different longitudes and / or latitudes.

[0028] A detection device for a diffractive optical waveguide, such as Figure 1 As shown, it includes an ambient light source 1, a diffraction optical waveguide test bench 2, an optical lens 3, an image acquisition device 4 and an image detection device (not shown in the figure); the ambient light source 1 is slidably arranged on a moving component 5, and the ambient light source 1 is configured to face the position where the diffraction optical waveguide is located and can adjust the different longitudes and / or latitudes of the ambient light source 1 relative to the diffraction optical waveguide; the optical lens 3 and the image acquisition device 4 are located on the side of the diffraction optical waveguide and away from the ambient light source 1, the image acquisition device 4 is used to acquire diffraction images of the diffraction optical waveguide at different longitudes and / or latitudes, and the image detection device is connected to the image acquisition device 4 and is used to receive and analyze the diffraction image.

[0029] Furthermore, the diffraction optical waveguide test bench 2 is used to carry the diffraction optical waveguide (not shown in the figure), and the diffraction optical waveguide test bench 2 is adapted to the external structural changes of the diffraction optical waveguide; in other embodiments, the diffraction optical waveguide test bench can be relatively moved relative to the position of the light source, such as by using the waveguide moving member 7 to realize the adjustment of the X\Y\Z axis of the diffraction optical waveguide in the direction relative to the substrate 8 to adapt to the position of different ambient light sources 1, so that the ambient light source 1 can be incident on the diffraction optical waveguide at different angles to form a diffraction image.

[0030] The geometric center position of the diffraction light waveguide is on the same axis as the center position of the ambient light source 1; and further, the diffraction light waveguide can move relative to the ambient light source 1 on the same axis to adjust the relative position relationship between the diffraction light waveguide and the plane where the ambient light source is located, thereby achieving adjustment at different latitudes.

[0031] In some embodiments, the diffraction image acquired by the optical lens 3 and the image acquisition device 4 includes a rainbow pattern image, and the detection device tests the rainbow pattern of the diffraction light waveguide, that is, a rainbow pattern detection device for the diffraction light waveguide is formed.

[0032] Furthermore, based on the rainbow pattern, multi-dimensional image information of the rainbow pattern can be obtained, including but not limited to the brightness, area, intensity distribution, color distribution and azimuth of the rainbow pattern.

[0033] Furthermore, in other embodiments, by adjusting the different longitudes and / or latitudes of the ambient light source 1 relative to the diffraction optical waveguide, the rainbow pattern of the diffraction optical waveguide under different test environments can be achieved, even in different regions of the country or in different regions abroad; further, the ambient light source 1 is point-shaped, with the observation center of the diffraction optical waveguide as the center of the circle, and the light outlet of the ambient light source 1 can be adjusted to achieve an angle selection of 0° to 180° to simulate the rising of the ambient light in the east and setting of the ambient light in the west.

[0034] like Figure 1 As shown, the optical lens 3 and the image acquisition device 4 are arranged on the gantry 6 and can slide freely on the gantry 6 to adapt to different types of diffraction optical waveguides; of course, it can be known that the position of the optical lens 3 and the image acquisition device 4 is located at the observation center position of the diffraction optical waveguide.

[0035] The gantry 6, the moving assembly 5 and other structures are all arranged on the base plate 8 to achieve fixation. Of course, each structure is arranged in sequence according to the structure of each part and the test requirements.

[0036] In more detail, Figure 2(a) to Figure 2(b) As shown, the ambient light source 1 has a light outlet 11, and the position of the light outlet 11 can be adjusted to different positions; the surface of the ambient light source 1 has a shading layer (not shown in the figure), which is slidably arranged on the surface of the ambient light source 1, and the position of the light outlet 11 can be adjusted by adjusting the position of the shading layer. According to different longitude and latitude detection requirements, the position of the shading layer can be adjusted to achieve a change in longitude.

[0037] Further, combined with Figure 2(a) to Figure 2(b) The side of the ambient light source 1 has scale lines, especially a position mark with a determined 0° scale line. When it is necessary to adjust different longitudes of the light outlet, the position of the scale lines on the shading layer relative to the 0° scale line can be adjusted, thereby changing the light outlet position of the light outlet 11 to achieve adjustment of different longitudes; as shown by the arc arrow in the figure, multi-directional adjustment of the light outlet can be achieved; thereby achieving longitude selection of 0° to 180°, so as to simulate the ambient light conditions of the sun rising in the east and setting in the west at different longitudes or different time periods, and obtain the rainbow pattern conditions of the diffraction light waveguide 2 in different scenes.

[0038] Furthermore, the ambient light source 1 can be slidably disposed on the guide rail of the moving component 5, and the ambient light source 1 can move back and forth along the axial direction of the guide rail to adapt to different latitude environments where the diffraction light waveguide is located, so as to test the rainbow pattern seen by the human eye when the diffraction light waveguide is incident with light at different latitudes. In some embodiments, the plane where the diffraction light waveguide is located is above the plane where the ambient light source 1 is located; in some special or extreme cases, for example, the ambient light source 1 and the diffraction light waveguide are located in the same plane, or even the plane where the ambient light source 1 is located is above the plane where the diffraction light waveguide is located.

[0039] certainly, Figure 1 The schematic diagram of the structure of the ambient light source 1 being a ring is shown. As a person skilled in the art, the ambient light source may include structures of other shapes to simulate the real test environment and adapt to different longitude and / or latitude tests, and adapt to changes in position due to changes in longitude and / or latitude. In this regard, the present application does not make any structural limitations.

[0040] Furthermore, the longitude of the present application is defined as the angle formed between the center position of the diffraction optical waveguide and the light outlet 11 of the ambient light source 1 and the 0° scale line. By adjusting the position of the light outlet of the ambient light source, different longitude angles are formed with the position of the 0° scale line. The latitude is defined as the angle between the center position of the diffraction optical waveguide in the plane where the diffraction optical waveguide is located and the line connecting the plane position of the ambient light source in the direction of the center position of the diffraction optical waveguide. The relative distance between the diffraction optical waveguide and the ambient light source in the direction of the center position is adjusted to form different latitude angles.

[0041] Through the above adjustments at different longitudes and / or latitudes, diffraction images of the diffraction light waveguide at different longitudes and / or latitudes, such as rainbow pattern images, are obtained, thereby obtaining information including but not limited to the brightness, area, intensity distribution, color distribution and azimuth of the rainbow pattern.

[0042] In some embodiments, the image acquisition device 4 may be a CCD camera, which cooperates with the optical lens 3 to acquire the diffraction image.

[0043] The image detection device is connected to the image acquisition device 4, and is used to acquire the diffraction image and perform image analysis. Of course, this application does not impose any limitation on the type of the image detection device, so long as it can accurately analyze the diffraction image, such as the rainbow pattern image.

[0044] On the one hand, it can be known that when the diffraction image obtained by the detection device of the present application, especially for the rainbow pattern, is used to judge the size, area, color, brightness, azimuth and other information of the rainbow pattern, the structural design of the diffraction grating can be fed back according to the obtained rainbow pattern situation, and the rainbow pattern effect can be improved by adjusting the grating structure design. In this regard, the qualified rate and defect detection rate of the waveguide can be improved, and the performance of the product can be improved, which is beneficial to the present application.

[0045] The utility model proposes a detection device for a diffraction optical waveguide. Firstly, the detection device gives priority to the diffraction problem of the diffraction optical waveguide at different longitudes and / or latitudes, such as the rainbow pattern effect, while overcoming the problem that only a single rainbow pattern quantitative analysis can be achieved in the prior art. By adjusting the positional relationship between the diffraction optical waveguide and the ambient light source relative to the plane, and simultaneously adjusting the position of the ambient light source outlet to change the ambient light source at different longitudes and / or latitudes, the detection device simulates the situation of the ambient light source rising in the east and setting in the west.

[0046] Furthermore, the present application realistically simulates the environment in which the diffraction optical waveguide is located, and comprehensively reflects the diffraction phenomenon in different scenarios from multiple dimensions, so as to obtain multi-dimensional information such as the diffraction image brightness, area size, intensity distribution, color distribution and azimuth of the diffraction optical waveguide, and provide technical reference for technical personnel in this field to comprehensively judge the rainbow pattern, which has unexpected technical effects; at the same time, through the device structure of the present application, the detection rate of the diffraction optical waveguide can be improved, the qualified rate of the product can be improved, and good economic benefits can be achieved.

[0047] The above specific implementations do not constitute a limitation on the protection scope of the present utility model. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A diffraction optical waveguide detection device, comprising an ambient light source, a diffraction optical waveguide test bench, an image acquisition device and an image detection device; characterized in that: The ambient light source is slidably disposed on the moving component, and the ambient light source is configured to face the position where the diffractive light waveguide is located and can be adjusted to different longitudes and / or latitudes of the ambient light source relative to the diffractive light waveguide; The image acquisition device is located at one side of the diffraction optical waveguide, and the image acquisition device is used to acquire diffraction images of the diffraction optical waveguide at different longitudes and / or latitudes; The image detection device is connected to the image acquisition device and is used to receive and analyze the diffraction image.

2. The detection device of the diffraction optical waveguide according to claim 1, characterized in that: The diffraction image includes a rainbow image.

3. The detection device of the diffraction optical waveguide according to claim 1, characterized in that: The geometric center of the diffraction light waveguide and the center position of the ambient light source are on the same axis, and the diffraction light waveguide and the ambient light source can move relative to each other on the same axis.

4. The detection device of the diffraction optical waveguide according to claim 1 or 2, characterized in that: The longitude is defined as the angle formed between the center position of the diffraction light waveguide, the ambient light source and the 0° scale line. Different longitude angles are formed by adjusting the position of the light outlet of the ambient light source. The latitude is defined as the angle between the center position of the diffraction light waveguide and the line connecting the plane position of the ambient light source in the direction of the center position of the diffraction light waveguide. Different latitude angles are formed by adjusting the relative distance between the diffraction light waveguide and the ambient light source in the direction of the center position.

5. The detection device of the diffraction optical waveguide according to claim 2, characterized in that: The ambient light source has a light outlet, and the position of the light outlet can be adjusted to different positions of the ambient light source.

6. The detection device of the diffraction optical waveguide according to claim 5, characterized in that: The ambient light source is ring-shaped, and the position of the light outlet moves in a ring to simulate the rising of ambient light in the east and setting of the light in the west.

7. The detection device of the diffraction optical waveguide according to claim 1 or 5, characterized in that: The surface of the ambient light source has a light shielding layer which is slidably arranged on the surface of the ambient light source.

8. The detection device of the diffraction optical waveguide according to claim 7, characterized in that: The shading layer has scale lines, and the shading layer has position markings corresponding to the ambient light source at the determined 0° scale line.

9. The detection device of the diffraction optical waveguide according to claim 1, characterized in that: It also includes an optical lens, which is arranged at the front end of the image acquisition device.

10. The detection device of the diffraction optical waveguide according to claim 9, characterized in that: The optical lens and the image acquisition device are slidably arranged on a gantry.

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