Optical detection device

Abstract

According to the efficient optical detection device, the detection efficiency is remarkably improved through an innovative polaroid adjusting mechanism, the efficient optical detection device is composed of a detection table, a polaroid bearing mechanism in drawer type design, a polaroid capable of being rotationally adjusted and a light source assembly, and it is not needed to frequently replace polaroids with different polarization angles; the polarization angle of the polarizer can be changed only by rotating the polarizer so as to adapt to different detection requirements. And the polaroid is designed to be circular, so that the convenience and stability of rotation are ensured. In addition, the device is further provided with auxiliary components such as scales, indication marks, a rotating component and a polaroid fixing mechanism, and more accurate and convenient polarization angle adjusting experience is provided. The polaroid bearing mechanism is arranged in the detection table in a drawer mode, convenient in and out of the polaroid bearing mechanism are achieved through a side opening, and usability and practicability of the device are further enhanced. According to the optical detection device, the detection efficiency is remarkably improved by reducing the replacement frequency of the polaroid.

Description

Technical Field

[0001] The present application relates to the technical field of display detection, and particularly to an optical detection device. Background Art

[0002] With the rapid development of display technology, especially the rise of 3D display technology, the quality requirements for display devices are also increasing day by day. In the production process of 3D display devices, ensuring the yield of products is crucial. Among them, as the core component of 3D display devices, the quality of the 3D switchable module directly affects the display effect and user experience of the final product. In order to ensure the yield of the 3D switchable module, an important detection link is usually included in the existing production process, namely visual macroscopic detection. This detection method mainly utilizes the backlight source, polarizer, and optical rotation property of liquid crystal, and comprehensively checks the quality of products through specific optical principles.

[0003] In visual macroscopic detection, as another important element in the detection, the polarizer is usually placed inside the detection table, below the entire substrate. When performing defect inspection, the polarizer will be precisely placed so that through its synergistic effect with the backlight source and liquid crystal, unevenness and other defects of the switchable module can be detected. This detection method can efficiently and accurately identify defective products in the production line, thus ensuring the yield.

[0004] In the production process of 3D display devices, when the switchable module is placed on the carrier table, the side of the prism glass with a prism structure faces the light source. The light path first passes through the polarizer, then through the prism glass, then irradiates on the liquid crystal, and finally passes through the isolation glass. Since the polarizer has polarization, that is, it only allows light in a specific direction to pass through, the polarizer used in the visual detection device has specific requirements for the polarization angle. Since the placement position and direction of the switchable module are fixed, whenever the light output angle of the prism changes, a polarizer with a suitable polarization angle needs to be cut and placed inside. This means that whenever there is a new requirement for the light output angle, a new polarizer needs to be cut, which undoubtedly increases the workload and consumption of polarizers and reduces the overall work efficiency. Therefore, it is necessary to improve the relevant detection device. Summary of the Utility Model

[0005] The purpose of the present application is to provide an optical detection device, which can adjust the angle of the polarizer, without the need to frequently replace polarizers with different polarization angles, and improve the detection efficiency.

[0006] The purpose of the present application is achieved through the following technical solutions. An optical detection device of the present application includes a detection table, a polarizer carrier mechanism, a polarizer, and a light source assembly;

[0007] The inspection table includes a placement position for the product to be inspected;

[0008] The polarizer carrier mechanism includes a polarizer placement groove, and the polarizer is placed in the polarizer placement groove. Inside the polarizer placement groove, the polarization angle of the polarizer can be adjusted;

[0009] The polarizer carrier mechanism is provided in the inspection table in a drawer - type manner;

[0010] Wherein, the light emitted by the light source assembly is provided to the product to be inspected after passing through the polarizer.

[0011] In one embodiment, the polarizer is circular in shape, and the polarizer placement groove is a circular shape matching the shape and size of the polarizer.

[0012] In one embodiment, a scale is provided on the polarizer placement groove.

[0013] In one embodiment, there is an indication mark on the polarizer.

[0014] In one embodiment, the polarizer placement groove further includes a rotating member, and the rotating member is used to drive the rotation of the polarizer placement groove or the polarizer.

[0015] In one embodiment, the polarizer carrier mechanism further includes a polarizer fixing mechanism, and the polarizer fixing mechanism is used to fix the polarizer in the polarizer placement groove.

[0016] In one embodiment, the inspection table includes multiple placement positions for the products to be inspected.

[0017] In one embodiment, the inspection table further includes a side opening, and the polarizer carrier mechanism enters and exits the inspection table from the side opening.

[0018] In one embodiment, the optical inspection device further includes a product inspection fixing mechanism, and the product inspection fixing mechanism is used to fix the product to be inspected.

[0019] In one embodiment, the optical inspection device further includes a vision system.

[0020] Compared with the prior art, the present application has the following beneficial effects: The present application significantly improves the detection efficiency through the polarizer adjustment mechanism. It is composed of a detection table, a drawer-type polarizer bearing mechanism, a rotatable and adjustable polarizer and a light source assembly, allowing the user to change the polarization angle by rotating the polarizer without replacing the polarizer to adapt to different detection needs. In addition, the polarizer is designed to be circular and cooperates with the matching circular polarizer placement slot to ensure the convenience of rotation. It is equipped with auxiliary components such as scales, indicator marks, rotating parts, and polarizer fixing mechanisms to provide a more accurate and convenient polarization angle adjustment experience. In addition, the polarizer bearing mechanism is combined with the side opening to achieve easy replacement and angle adjustment of the polarizer. The optical detection device of the present application can significantly improve the detection efficiency by reducing the frequency of polarizer replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic cross-sectional structural diagram of an optical detection device according to an embodiment of the present application;

[0022] Figure 2 is a schematic cross-sectional structure diagram of a polarizer bearing mechanism in an optical detection device according to an embodiment of the present application;

[0023] Figure 3 It is a detection schematic diagram of the optical detection device of the present application.

[0024] Description of reference numerals: 100, testing platform; 200, polarizer bearing mechanism; 300, polarizer; 400, light source assembly; 500, product to be tested. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. 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.

[0026] The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0027] References to "embodiments" in this specification mean that particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive of other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0028] Optical detection is a technology for detecting features such as the surface topography, transparency, color, and brightness of an object based on optical principles and techniques. In the field of display technology, optical detection is an important part. Especially in situations involving optical angle adjustment, precise optical detection is particularly important, as the angle change of light has a direct impact on the detection results. In polarization-related detection, the control of the polarization angle of the polarizer 300 is very important. For example, in visual macroscopic detection, this detection method mainly utilizes the backlight source, polarizer, and the optical rotation property of liquid crystal to comprehensively inspect the quality of the product through specific optical principles. For a liquid crystal display device, the prism extension direction is parallel to the liquid crystal alignment direction, and the requirement for the polarization direction of the incident light is parallel to the liquid crystal alignment direction. The polarization angle of the incident polarizer should be consistent with the prism extension direction. Correspondingly, in related detection, the angle adjustment of the polarizer 300 is an important link in the detection process. This application has made improvements in the adjustment aspect of the polarizer 300. Please refer to Figures 1-3 An optical detection device in a preferred embodiment of the present application can adjust the angle of the polarizer 300 without frequently replacing polarizers 300 with different polarization angles. It includes a detection table 100, a polarizer carrier mechanism 200, a polarizer 300, and a light source assembly 400.

[0029] The detection table 100 includes a placement position for the product 500 to be detected. The product 500 to be detected is, for example, a 3D switchable module. The 3D switchable module is placed on the detection table 100. The detection table 100 can be provided with a placement groove corresponding to the product 500 to be detected. In a further embodiment, a replaceable placement template can be provided, and different placement templates are set for different products 500 to be detected. The placement template includes placement grooves corresponding to the sizes of different products 500 to be detected. When the optical detection device is applied to different products, different placement templates can be replaced to achieve stable placement of products with different sizes.

[0030] The polarizer carrier mechanism 200 includes a polarizer placement groove. Most of the middle area of the placement groove is in a hollow state. When the polarizer 300 is placed in the polarizer placement groove, the hollow area is a light-transmitting area, and light can pass through without being blocked by the polarizer carrier mechanism 200. The polarizer 300 is placed in the polarizer placement groove, and the angle of the polarizer 300 can be adjusted within the polarizer placement groove. The polarizer 300 can be adjusted by 360° within the groove, so as to easily adjust the polarization angle. By dynamically adjusting the angle of the polarizer 300, it is not necessary to frequently replace polarizers 300 with different polarization angles, which greatly shortens the detection time and improves the detection efficiency.

[0031] The polarizer carrier mechanism 200 is arranged in the detection table 100 in a drawer-like manner. The "drawer-like" in this application means that this structure is not fixed to the detection table 100. When in use, the polarizer carrier mechanism 200 is located inside the detection table 100. When it is necessary to adjust the polarizer 300, the polarizer carrier mechanism 200 can be taken out from inside the detection table 100, and the way of taking it out can be similar to pulling out a drawer. Further, between the polarizer carrier mechanism 200 and the detection table 100, there may also be included a guide rail, a support mechanism, a limiting mechanism, etc. The settings of the guide rail, the support mechanism and the limiting mechanism ensure the stability and reliability of the polarizer carrier mechanism 200 during the adjustment process, and realize the stable control of the angle of the polarizer 300.

[0032] Among them, the light emitted by the light source assembly 400 is provided to the product 500 to be detected after passing through the polarizer 300. In one implementation, the light source assembly 400, the detection table 100, and the component to be detected are arranged in sequence from bottom to top, and the detector or the vision device is arranged above the detection table 100. In addition, it is also possible to combine with the rotation of the detection table 100 to realize the observation at different angles and different positions.

[0033] In a preferred solution, the shape of the polarizer 300 is circular, and the polarizer placement groove is circular and matches the shape and size of the polarizer 300. The matching design of the circular polarizer 300 and the circular placement groove ensures the alignment and convenience of setting during the installation process of the polarizer 300. Due to the complete coincidence of the polarizer 300 and the placement groove, the polarizer 300 can remain stable after installation and is not prone to displacement or shaking. Stability is important for an optical detection system running for a long time, which can ensure that the device can still maintain stable performance during long-term use. In addition, the circular structure is also very convenient in the processing of related components, which can greatly reduce the complexity of the optical detection device for both manufacturing and use.

[0034] To precisely control and record the angle of light, scales are provided on the polarizer placement groove. Since the outgoing light angles to be detected usually range from 0° to ±180°, scales from 0 to 180° can be marked on the polarizer placement groove. By providing scales on the polarizer placement groove, users can intuitively understand and precisely control the angular position of the polarizer 300. This is crucial for optical experiments or detections that require precise adjustment of the light angle, ensuring the accuracy and reliability of experimental results. Since the outgoing light angles to be detected usually range from 0° to ±180°, we have marked scales from 0° to 180° and corresponding negative angles on the polarizer placement groove. Such a design covers all possible outgoing light angles and meets the wide range of optical detection and recording requirements. By precisely controlling the angular position of the polarizer 300, users can find the optimal experimental conditions more quickly, thus shortening the experimental time and improving experimental efficiency.

[0035] To cooperate with the scales provided on the polarizer placement groove, there are indication marks on the polarizer 300. To precisely confirm the angle of the polarizer 300, when using a circular polarizer placement groove and the polarizer 300, the centers of the two overlap, and the indication mark is selected as a straight line segment whose extension line or itself intersects the center of the circle. An arrow can also be further included. In this way, by combining the scales on the polarizer placement groove and the indication marks, the angle of the polarizer 300 can be precisely determined, ensuring the accuracy of the detection. When adjusting the angle of the polarizer 300, the correct angular position can be clearly identified at a glance. This design greatly enhances the recognition and readability, reducing the possibility of misoperation. Since the scales on the polarizer placement groove correspond to the indication marks on the polarizer 300, users can precisely determine the angle of the polarizer 300 by observing the relative positions between the two. This combined usage method can significantly improve the accuracy of the detection.

[0036] In addition, in a further technical solution of the present application, to further improve efficiency, based on the foregoing solution, it is further improved by canceling the step of pulling out the polarizer carrier mechanism 200 from the detection table 100, and the polarizer placement groove is further provided with a rotating component, which is used to drive the rotation of the polarizer placement groove or the polarizer 300. By simply operating this rotating component, the polarizer 300 can be precisely adjusted to the required angular position without complex disassembly or reinstallation. The rotating component can be motor-controlled or the adjustment part can be arranged outside the adjustment table through a mechanical structure, so as to more conveniently realize the angular adjustment of the polarizer 300. Combining the scales and markings, by quickly and accurately adjusting the angle of the polarizer 300, the optimal experimental conditions or detection positions can be quickly found, improving the efficiency of the experiment or detection.

[0037] In order to stabilize the polarizer 300, the polarizer bearing mechanism 200 further includes a polarizer 300 fixing mechanism, which is used to fix the polarizer 300 in the polarizer placement slot. The polarizer 300 fixing mechanism can ensure the stable position of the polarizer 300 in the placement slot, effectively preventing the polarizer 300 from shifting or falling off due to vibration, impact or external force. Through the fixing mechanism, the polarizer 300 can be accurately aligned to the required position without frequent adjustment. The design of the fixing mechanism is usually universal and can adapt to polarizers 300 of different sizes, shapes and materials, so that the polarizer bearing mechanism 200 has a wider range of applications.

[0038] In addition, in order to further improve the detection efficiency, the detection table 100 includes multiple placement positions for the products to be detected 500. In order to meet the testing requirements of different batches and multiple types of products to be detected 500, the detection table 100 is carefully designed to include multiple independent placement positions for the products to be detected 500. These placement positions are not only numerous, but also each position has a high degree of independence and standardized design, ensuring that each product to be detected 500 can be stably and accurately placed and tested. Each placement position is equipped with a fast positioning mechanism and a fine-tuning mechanism, which can quickly and accurately complete the positioning and fixation of the product to be detected 500, improving the test efficiency while ensuring the accuracy and reliability of the test results.

[0039] In a further embodiment, the test bench 100 further includes a side opening, and the polaroid carrier mechanism 200 enters and exits the test bench 100 from the side opening. The test bench 100 can also rotate an angle, which is achieved by installing the test bench 100 on a universal shaft. In order for the universal shaft to be able to stably maintain at a specific angle while taking into account the convenience of angle adjustment, a limiting mechanism, a moving mechanism, etc. can be further provided as needed. The design of the side opening makes it more convenient to enter and exit the polaroid carrier mechanism 200 without complicated operation or disassembly steps. Through the combination of the universal shaft and the limiting mechanism, the test bench 100 can be stably maintained at any angle, effectively avoiding errors caused by shaking or rotation of the test bench 100 during the test process, and improving the accuracy and reliability of the test.

[0040] In order to ensure the accuracy and stability during the optical inspection process, the optical inspection device further includes a product fixing mechanism for fixing the product to be inspected 500. The product fixing mechanism can firmly fix the product to be inspected 500 so that it remains stationary during the optical inspection process, eliminating errors caused by product movement or shaking, thereby improving the accuracy of the inspection. The product fixing mechanism has a high degree of adjustability and flexibility, and can adapt to products to be inspected 500 of different sizes, shapes and weights, without the need to design complex placement slots and other structures.

[0041] In the technical solution for further improving the present application, the automation degree of the optical detection device can be enhanced through an automatic detection and analysis system, and the optical detection device further includes a vision system. The vision system integrates a high-definition camera, image processing software, and intelligent analysis algorithms, capable of capturing detailed images of the product 500 to be detected, and performing high-precision analysis and measurement through image processing techniques. The vision system features high definition, high speed, and high precision, capable of capturing subtle changes in the product 500 to be detected in real time, and converting this information into quantifiable data, providing a reliable basis for quality control and defect detection. The vision system captures images of the product 500 to be detected through a high-definition camera, and in combination with image processing software and intelligent analysis algorithms, can achieve high-precision measurement and analysis of product details. The vision system features high speed and is capable of capturing and processing image information of the product 500 to be detected in real time. This enables the optical detection device to complete the detection of a large number of products in a short time, greatly improving the detection efficiency. It not only provides quantitative detection results, but also can display the actual situation of the product through images, enabling users to intuitively understand the quality and defect situation of the product. Additionally, the automatic detection function of the vision system reduces the need for manual intervention and lowers labor costs. At the same time, due to the high precision and high efficiency of the vision system, it can also reduce human errors and improve the detection quality. The setting of the vision system in the optical detection device has better technical effects in terms of improving detection accuracy, enhancing detection efficiency, increasing adaptability, providing visual data, and reducing labor costs.

[0042] As can be seen from the foregoing, the present application provides a convenient optical detection device. Through the polarizer adjustment mechanism, it overcomes the cumbersome steps of frequently replacing polarizers with different polarization angles in traditional optical detection devices, and improves the detection efficiency. The polarizer adopts a circular design, and the continuous controllable change of the polarization angle is achieved through rotation, thereby adapting to different detection requirements. The rotation adjustment mechanism is designed precisely to ensure the stability and accuracy of the polarizer during rotation. The polarizer carrier mechanism adopts a drawer-type design and is integrated inside the detection table. It realizes convenient entry and exit through an opening on the side, simplifies the replacement process of the polarizer, and also improves the usability and practicality of the device. At the same time, the carrier mechanism is equipped with precise scales, clear indication marks, and reliable rotating components inside, providing a more precise and convenient way to adjust the polarization angle for users. In addition, the device is also equipped with a polarizer fixing mechanism to ensure that the polarizer can be stably maintained at the required angle during the rotation adjustment process, avoiding angle deviation caused by vibration or misoperation. The entire device has a compact structure and is easy to operate. In summary, the optical detection device of the present application significantly improves the detection efficiency and reduces the operation cost through an innovative polarizer adjustment mechanism, providing an efficient and convenient detection solution for the field of optical detection.

[0043] The above is only a specific embodiment of the present application, and any improvements made on the premise of the concept of the present application are regarded as the protection scope of the present application.

Claims

1. An optical detection device, characterized in that, It includes a detection table (100), a polarizer carrier mechanism (200), a polarizer (300), and a light source assembly (400); The detection table (100) has a placement position for the product to be detected (500); The polarizer carrier mechanism (200) includes a polarizer placement groove, and the polarizer (300) is placed in the polarizer placement groove. In the polarizer placement groove, the polarization angle of the polarizer (300) can be adjusted; The polarizer carrier mechanism (200) is arranged in the detection table (100) in a drawer - type manner; Among them, the light emitted by the light source assembly (400) is provided to the product to be detected (500) after passing through the polarizer (300).

2. The optical detection device according to claim 1, characterized in that, The polarizer (300) is circular in shape, and the polarizer placement groove is circular and matches the shape and size of the polarizer (300).

3. An optical detection device according to claim 2, characterized in that The polarizer placement groove is provided with a scale.

4. An optical detection device according to claim 3, characterized in that, The polarizer (300) has an indication mark.

5. An optical detection device according to claim 3, characterized in that, The polarizer placement groove further includes a rotating member, and the rotating member is used to drive the rotation of the polarizer placement groove or the polarizer (300).

6. An optical detection device according to claim 5, wherein, The polarizer carrier mechanism (200) further includes a polarizer (300) fixing mechanism, and the polarizer (300) fixing mechanism is used to fix the polarizer (300) in the polarizer placement groove.

7. An optical detection device according to claim 1, characterized in that, The detection table (100) includes multiple placement positions for the products to be detected (500).

8. An optical detection device according to claim 1, characterized in that The detection table (100) further includes a side opening, and the polarizer carrier mechanism (200) enters and exits the detection table (100) from the side opening.

9. An optical detection device according to claim 1, characterized in that, It further includes a detection product fixing mechanism, and the detection product fixing mechanism is used to fix the product to be detected (500).

10. An optical detection device according to any one of claims 1-9, characterized in that, It further includes a vision system.

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