Reflecting plate applied to polaroid desktop inspection
By introducing a white reflection zone, a black reflection zone, a light-shielding plate, and a filter into the polarizer testing equipment, the problems of versatility and testing accuracy of the polarizer testing equipment are solved, and efficient and accurate polarizer testing is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN GUANJIA NEW MATERIAL CO LTD
- Filing Date
- 2025-04-11
- Publication Date
- 2026-05-19
AI Technical Summary
Existing polarizer testing equipment requires frequent changes of the testing table when testing polarizers produced by different material manufacturers, which increases labor and time costs, and external light interference affects the testing accuracy.
A reflector plate was designed, comprising a support platform, a conveyor belt, a white reflective area, a black reflective area, a light-shielding plate, and a filter. The reflector plate is driven by a conveyor roller to transport the polarizer. The contrast of the light source can be adjusted by adjusting the light-shielding plate and the filter, which can meet the testing needs of polarizers produced by different material manufacturers and reduce equipment adjustment and external light interference.
It improves detection efficiency and equipment versatility, reduces costs, ensures detection accuracy and precision, and adapts to diverse polarizer detection tasks.
Smart Images
Figure CN224263087U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of polarizer processing equipment, and in particular to a reflector used for desktop inspection of polarizers. Background Technology
[0002] According to Chinese Publication No. CN211877804U, a foreign object detection device for the surface of liquid crystal glass includes an irradiation module. The irradiation module irradiates the product at a preset angle, which is the angle between the direction of the light path irradiated by the irradiation module and the vertical direction. The preset angle is 55.5°-56.5°. A reflection module is arranged along the reflected light path of the irradiation module, and a detection module is arranged along the reflected light path of the reflection module. Utilizing the reflection characteristics of light on the surface of the medium, and in conjunction with a polarizer, the intensity of surface reflected light is enhanced, while the intensity of transmitted / internal reflected light is reduced. The reflection by the reflection module allows the optical path to realize a complex optical system within a small space. The overall structure of the optical module is compact, easy to adjust, and convenient to install.
[0003] The aforementioned patent documents and prior art have the following technical problems:
[0004] 1. In the existing polarizer testing technology, it is usually necessary to prepare a variety of special testing tables (such as white, black, etc.) according to the characteristics of polarizers produced by different material manufacturers to meet the reflection testing requirements. This increases the manpower and time costs required for equipment adjustment. Furthermore, the stability and accuracy of the equipment may be affected by frequent disassembly and assembly operations, which in turn affects the accuracy of the test results.
[0005] 2. The testing environment for polarizers is often difficult to adjust flexibly according to the characteristics of different polarizers and inspection requirements. When testing polarizers that are sensitive to light, external light interference can seriously affect the accuracy of the test results. Due to the lack of effective light-shielding measures, stray light from the surrounding environment (such as natural light, light emitted by other equipment, etc.) will shine into the testing area, making the reflected light mixed and unclear, making it difficult to clearly and accurately observe the condition of the polarizer, resulting in a decrease in testing accuracy. Utility Model Content
[0006] The purpose of this invention is to address the shortcomings of existing polarizer inspection reflectors, such as insufficient versatility and insufficient accuracy in the inspection environment, and to propose a reflector for desktop inspection of polarizers.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: a reflector plate for desktop inspection of polarizers, comprising a support platform and a conveyor belt. The support platform is provided in two sets, and a conveyor belt is provided between adjacent support platforms. The conveyor belt has conveyor rollers at both ends inside, and a drive motor is connected to the end of one of the conveyor rollers. The surface of the conveyor belt is provided with a white reflective area and a black reflective area. Light-shielding plates are provided on both sides of the support platform, and a filter is provided on the top of the conveyor belt. A filter storage groove is bolted to the outside of the support platform, and multiple filters are provided inside the filter storage groove.
[0008] Preferably, the top surface of the support platform is provided with a first adjustment track and a second adjustment track, and a light-shielding damping shaft seat is slidably provided inside the first adjustment track, and the light-shielding damping shaft seat is axially connected to the bottom edge of the light-shielding plate.
[0009] Preferably, a filter damping shaft seat is slidably provided inside the second adjustment track, a multi-axis adjustment arm is axially connected to the top of the filter damping shaft seat, a magnetic base is axially connected to the top of the multi-axis adjustment arm, and a filter is provided inside the magnetic base.
[0010] Preferably, the magnetic base has a magnetic cover plate magnetically connected to its top surface, and the magnetic cover plate is the same size as the magnetic base, with the edge of the magnetic cover plate engaging with the edge of the top surface of the magnetic base. Both the magnetic base and the magnetic cover plate have L-shaped side cross-sections.
[0011] Preferably, the filter storage tank has multiple partitions inside, and the filter is located in the space between adjacent partitions.
[0012] Preferably, a metal guide plate is welded to the inner side of the support platform near the end of the conveyor belt, and adjacent metal guide plates are symmetrically distributed along both sides of the conveyor belt.
[0013] Preferably, the white reflective area and the black reflective area are of the same size distributed along the surface of the conveyor belt, and the end of the conveyor roller is movably connected to the surface of the support platform.
[0014] Beneficial effects
[0015] In this invention, a support platform is used to perform reflection detection on the surface of the polarizer by means of conveyor rollers connected to a drive motor and conveyor belt. By setting white and black reflection areas on the surface of the conveyor belt for detection, it is possible to eliminate the need to frequently change the tabletop reflection inspection color when inspecting polarizers produced by different material manufacturers. This reduces the time and cost of equipment adjustment and replacement, improves detection efficiency and equipment versatility, and can quickly adapt to diverse polarizer inspection tasks, effectively reducing the enterprise's investment and operating costs in inspection equipment.
[0016] In this invention, a support platform with metal guide plates guides and positions the polarizer entering the conveyor belt surface. A light-shielding plate is used to shield the conveyor belt surface from light during inspection. When inspecting polarizers that are sensitive to light, the light-shielding plate can be adjusted to a suitable position to reduce external light interference, making the reflected light clearer and purer, facilitating accurate observation of the polarizer's condition. The filter structure can adjust the light source contrast during inspection. Depending on the characteristics of different raw materials and inspection requirements, the angle adjustment frame can be rotated to select a filter with appropriate transmittance and place it on the path of the reflected light, thereby adjusting the intensity and contrast of the reflected light. This allows for more accurate detection of defects or characteristic differences in the polarizer, ensuring the quality of the inspection environment and improving inspection accuracy. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 For the present utility model Figure 1 Enlarged view of point A;
[0019] Figure 3 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 4 This is a side view of the present invention;
[0021] Figure 5 This is a top view of the present invention.
[0022] Legend:
[0023] 1. Support platform; 2. Conveyor belt; 3. Conveyor roller; 4. Drive motor; 5. First adjustment track; 6. Second adjustment track; 7. Light-shielding damping bearing; 8. Light-filtering damping bearing; 9. Multi-axis adjustment arm; 10. White reflection area; 11. Black reflection area; 12. Light-shielding plate; 13. Light filter; 14. Magnetic base; 15. Magnetic cover plate; 16. Light filter storage slot; 17. Divider strip; 18. Metal guide plate. Detailed Implementation
[0024] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.
[0025] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:
[0027] Reference Figure 1-5 A reflector for desktop inspection of polarizers includes a support platform 1 and a conveyor belt 2. The support platform 1 has two sets, providing a stable support structure for the entire reflector inspection device. A conveyor belt 2 is positioned between adjacent support platforms 1. Conveyor rollers 3 are located at both ends of the conveyor belt 2. The ends of the conveyor rollers 3 penetrate the surface of the support platform 1. A drive motor 4 is connected to one end of a conveyor roller 3. The drive motor 4 is a key component for the rotation of the conveyor belt 2. Through contact with the belt and its own rotation, the drive motor 4 transmits power to the conveyor belt 2, achieving the cyclical movement of the belt and thus driving the conveyor of the polarizer. The polarizer is in close contact with the conveyor belt 2. When the drive motor 4 drives one of the conveyor rollers 3 to rotate... During rotation, due to friction, the conveyor belt 2 moves along with the rotating conveyor roller 3. The other conveyor roller 3 serves to assist in supporting and guiding the direction of belt movement. After the drive motor 4 starts, the output shaft drives the connected conveyor roller 3 to rotate. The rotation of the conveyor roller 3 causes the conveyor belt 2 to start moving. The other conveyor roller 3 rotates passively according to the movement of the belt, ensuring that the belt rotates smoothly between the two rollers. This ensures the stable transmission of the polarizer on the belt and provides stable and reliable transmission power, enabling the conveyor belt 2 to run at a uniform speed and smoothly. This avoids the polarizer from being affected by unstable speed or vibration during transmission, thus ensuring the accuracy and reliability of the detection process.
[0028] The conveyor belt 2 has a white reflective area 10 and a black reflective area 11 on its surface. The white reflective area 10 and the black reflective area 11 are of the same size and distributed along the surface of the conveyor belt 2. A filter 13 is provided on the top of the conveyor belt 2, and a filter storage tank 16 is bolted to the outside of the support platform 1. The filter storage tank 16 contains multiple filters 13. The black reflective area 11 is mainly used to detect some transparent or semi-transparent defects on the polarizer, such as tiny bubbles and uneven internal structures. Since black absorbs light strongly, when the polarizer is placed above the black reflective area 11, these transparent or semi-transparent defects will be more obvious due to the difference in contrast with the black background. For example, tiny bubbles inside the polarizer may appear as darker points against a black background, making them easier to observe. The white reflective area 10 is used to detect features and defects on the surface of the polarizer, such as scratches, stains, and surface flatness. The white area has high reflectivity and can diffusely reflect light, allowing the surface of the polarizer to receive uniform reflected light. Against such a uniform and bright reflective background, defects on the surface of a polarizer are more easily detected due to the scattering or blocking of light. For example, scratches on the surface of a polarizer may appear as brighter lines against a white background.
[0029] The support platform 1 has light-shielding plates 12 on both sides. A first adjustment track 5 and a second adjustment track 6 are provided on the top surface of the support platform 1. A light-shielding damping bearing 7 is slidably mounted inside the first adjustment track 5. The light-shielding damping bearing 7 is axially connected to the bottom edge of the light-shielding plate 12. During polarizer detection, the light-shielding plate 12 blocks excess external light, reducing interference from stray light on the detection results. This makes the reflected light from the polarizer in the reflector area clearer and purer, facilitating accurate observation of the polarizer's details and features. The light-shielding damping bearing 7, mounted on the first adjustment track 5 on the top surface of the support platform 1, is connected to the support platform 1. The light-shielding damping bearing 7 can slide within the first adjustment track 5, thereby adjusting the position of the light-shielding plate 12. The light-shielding plate 12 can block light from different directions around the detection area, ensuring accurate illumination. The light that hits the polarizer and is reflected back mainly comes from the set light source direction. Before or during the inspection, the operator manually pushes the light-shielding damping bearing 7 to move within the first adjustment track 5 according to the actual light environment and inspection requirements, thereby adjusting the position and angle of the light-shielding plate 12 so that it can effectively block interfering light. For example, when there is strong side light, the light-shielding plate 12 can be adjusted to a suitable angle to block the strong light, making the light environment in the inspection area more conducive to observing the reflection of the polarizer on the reflector plate, improving the light quality in the inspection area, reducing the interference of reflected light caused by stray light, and making the defects or features of the polarizer more clearly presented. This helps to improve the accuracy and reliability of the inspection and reduce the misjudgment rate caused by light interference.
[0030] Preferably, a filter damping bearing 8 is slidably provided inside the second adjustment track 6. A multi-axis adjustment arm 9 is axially connected to the top of the filter damping bearing 8. A magnetic base 14 is axially connected to the top of the multi-axis adjustment arm 9. A filter 13 is provided inside the magnetic base 14. The filter 13 adjusts the contrast of the light source during detection by filtering light of different wavelengths or intensities, making certain features or defects of the polarizer easier to observe under a specific contrast. For example, it can enhance the contrast between fine scratches on the surface of the polarizer and normal areas, or highlight the manifestation of the non-uniformity of the internal structure of the polarizer in the reflected light. Different types of filters 13 have selective absorption and transmission characteristics of light. For example, some filters 13 can absorb light of a specific color, reducing the color component in the reflected light, thereby changing the color composition and intensity distribution of the reflected light, and thus affecting the polarizer under reflected light. Visual effects are enhanced to highlight features or defects. During the inspection process, a suitable filter 13 is selected from the filter storage tank 16 based on the type of polarizer, potential defects, and inspection requirements. The filter 13 is then installed at a suitable position above the conveyor belt 2 using the multi-axis adjusting arm 9. This allows light to pass through the filter 13 after illuminating and reflecting off the polarizer before being observed by the operator. For example, when inspecting transparent stains on the surface of the polarizer, a filter 13 that enhances the color contrast with the stain is selected, making the stain more visible under reflected light. This improves the accuracy and sensitivity of the inspection. By adjusting the filter 13 according to different polarizer characteristics and inspection targets, the inspection effect can be optimized, allowing defects or features that are difficult to detect under ordinary light sources to be clearly presented. This helps improve the quality inspection level of polarizers and reduce the missed detection rate of defective products.
[0031] The magnetic base 14 has a magnetically attached magnetic cover plate 15 on its top surface. The magnetic cover plate 15 is the same size as the magnetic base 14, and its edge engages with the edge of the top surface of the magnetic base 14. Both the magnetic base 14 and the magnetic cover plate 15 have L-shaped side sections. The magnetic base 14 is used to hold the filter 13, preventing it from easily falling off or shifting during installation and testing. Simultaneously, through its axial connection with the multi-axis adjustment arm 9, the filter 13 is stably mounted on the adjustment mechanism. When installing the filter 13, it is placed into the magnetic base 14. 4. Inside, during the testing process, the magnetic base 14 moves with the adjustment of the multi-axis adjusting arm 9, and the filter 13 remains in a fixed position within the magnetic base 14, stably filtering the reflected light. The magnetic cover 15 cooperates with the magnetic base 14 to further fix the filter 13, preventing it from popping out of the magnetic base 14 due to accidental collision or vibration during the testing process. It also protects the surface of the filter 13 from contamination or scratches. The cover 15 is the same size as the magnetic base 14 and is magnetically connected at the top, with its edges engaging with the top edge of the magnetic base 14. By magnetically adhering to the magnetic base 14, a closed space is formed, enclosing the filter 13 within it. After the filter 13 is placed in the magnetic base 14, the magnetic cover 15 is placed on top, engaging its edges and securing it magnetically. During the testing process, the magnetic cover 15 remains on the magnetic base 14, protecting the filter 13. When the filter 13 needs to be replaced, the magnetic cover 15 is opened by overcoming the magnetic force, the filter 13 is taken out or replaced, and then the magnetic cover 15 is closed again. This enhances the fixing effect and protection of the filter 13, reduces the risk of damage to the filter 13 during the testing process and the testing error caused by the displacement of the filter 13, extends the service life of the filter 13, and ensures the stability and reliability of the filter 13 during the testing process.
[0032] The filter storage tank 16 has multiple partitions 17 inside, and the filters 13 are located in the space between adjacent partitions 17. It is used to store multiple different types of filters 13, which facilitates the quick selection and replacement of filters 13 as needed during the testing process, thereby improving the efficiency and flexibility of the testing work. By setting multiple partitions 17 inside, the filters 13 are classified and stored in the space between adjacent partitions 17, so that the filters 13 can be arranged in an orderly manner, making it easy to find and use. Before testing, based on the preliminary understanding of polarizers and testing experience, the type of filter 13 that may be used can be determined. Then, the corresponding filter 13 is quickly located and taken out from the filter storage slot 16 and installed on the multi-axis adjustment arm 9 for testing. During the testing process, if the current filter 13 is found to be unsatisfactory, other filters 13 can be quickly replaced from the filter storage slot 16 for testing until the best testing effect is achieved. This provides a centralized and orderly storage space for filters 13, reducing the risk of loss or damage to filters 13. At the same time, it greatly shortens the selection and replacement time of filters 13, improves the overall efficiency of the testing work, and enables testing personnel to more conveniently adjust filters 13 according to different testing needs, adapting to the testing tasks of various polarizers.
[0033] A metal guide plate 18 is welded to one end of the inner side of the support platform 1 near the conveyor belt 2. Adjacent metal guide plates 18 are symmetrically distributed along both sides of the conveyor belt 2 to guide and position the polarizer entering the surface of the conveyor belt 2, ensuring that the polarizer can be accurately placed at the center of the conveyor belt 2 or the predetermined detection starting position, thereby improving the consistency and accuracy of the detection. It is welded to one end of the inner side of the support platform 1 near the conveyor belt 2 and is slightly bent towards the center of the conveyor belt 2. When the polarizer is placed at one end of the conveyor belt 2, its edge contacts the metal guide plate 18. Under the friction of the conveyor belt 2, the polarizer moves towards the center along the curved shape of the metal guide plate 18, thus achieving positioning. Before the polarizer is placed on the conveyor belt 2, the metal guide plate 18 is already in a fixed position. After the polarizer contacts the metal guide plate 18, as the conveyor belt 2 starts, the polarizer gradually adjusts its position under the guidance of friction and the metal guide plate 18 until it is conveyed to the appropriate detection starting position. In the subsequent detection process, the metal guide plate 18 can also prevent the polarizer from deviating from the predetermined detection path due to external force or shaking during the conveying process, improving the placement accuracy and stability of the polarizer on the conveyor belt 2, reducing detection errors caused by polarizer placement deviations, and ensuring that the polarizer passes through the reflector area in the same position and posture during each detection. This is beneficial to improving the comparability and accuracy of the detection results and ensuring the stability of the polarizer detection quality. Specific Implementation Example 2:
[0035] Reference Figure 1-5Based on the content of the above specific embodiments, the following content is further disclosed:
[0036] The multi-axis adjustable support arm 9 allows for flexible adjustment of the filter 13 in multiple directions, such as horizontal, vertical, and tilt, enabling the filter 13 to be accurately positioned above the conveyor belt 2 for optimal filtering. Connected to the filter damping bearing 8 and magnetic base 14 via a shaft joint structure, each joint can rotate within a certain range. Operators can manually adjust the angles of each joint to change the position and angle of the filter 13. For example, adjusting the horizontal joint allows the filter 13 to move horizontally, while adjusting the tilt joint changes the tilt angle of the filter 13 to accommodate different incident angles of the detection light and the detection position of the polarizer. After determining the approximate height of the filter 13, the operator sequentially adjusts each joint of the multi-axis adjustable support arm 9 according to the direction of the detection light and the position of the polarizer on the conveyor belt 2. First, adjust the horizontal position so that the filter 13 is aligned with the detection area of the polarizer. Then, adjust the vertical and tilt angles as needed so that the light can accurately pass through the filter 13 and illuminate the polarizer. The reflected light is then filtered by the filter 13 before being observed. This provides a highly flexible adjustment function for the filter 13, which can adapt to different detection equipment layouts and polarizer detection requirements. The position and angle of the filter 13 above the conveyor belt 2 can be precisely adjusted, ensuring that the filter 13 can effectively filter light during the detection process, thereby improving the accuracy and reliability of the detection. Specific Implementation Example 3:
[0038] Reference Figure 1-5 Based on the content of the above specific embodiments, the following content is further disclosed:
[0039] Working principle of black reflection area 11: Black materials have a high absorption coefficient for light. When light shines on black reflection area 11, most of the light is absorbed, and only a small amount is reflected. When a polarizer is placed above black reflection area 11, light passes through the polarizer and reaches black reflection area 11, with less light being reflected back. If the polarizer has uneven internal structure or transparent defects, the light transmission and reflection in these areas will differ from normal areas, producing a noticeable visual difference against a black background, making it easier for inspectors to observe.
[0040] Working principle of white reflective area 10: White materials have a high reflectivity to light and can diffusely reflect it. When light shines on white reflective area 10, the white area will reflect the light evenly in all directions. When a polarizer is placed above white reflective area 10, the reflected light will illuminate the surface of the polarizer. If there are defects such as scratches or stains on the surface of the polarizer, these defects will change the direction of light reflection or absorb some light, resulting in differences in brightness or color against a white background, which can then be detected.
[0041] Driven by conveyor belt 2, the polarizer sequentially passes through the black reflection zone 11 and the white reflection zone 10. In the black reflection zone 11, the operator focuses on observing the interior of the polarizer for transparent or translucent defects. These defects will appear as darker or abnormally colored areas against a black background. Then, the polarizer enters the white reflection zone 10, where the operator primarily observes surface features such as scratches and stains. These defects will appear as brighter or different-colored areas against a white background. This sequential inspection allows for a comprehensive check of the polarizer's internal and surface condition.
[0042] Improved Inspection Quality: The combination of the black reflective area 11 and the white reflective area 10 provides a comprehensive inspection method, effectively detecting internal and surface defects in polarizers. By comparing observations in different reflective areas, the quality of the polarizer can be judged more accurately, reducing the rate of missed defects. For example, it may be difficult to detect tiny air bubbles inside the polarizer using only a white background, while the black reflective area 11 can fill this inspection blind spot, improving the accuracy and completeness of the inspection.
[0043] Improved inspection efficiency: Since the black and white reflective areas 10 are on the same surface of the conveyor belt 2, the polarizer can be inspected sequentially in both reflective areas during transport, without the need to change inspection equipment or background. This significantly saves inspection time, improves inspection efficiency, and makes the polarizer inspection process smoother and more efficient, enabling the quality inspection of a large number of polarizers to be completed in a short time.
[0044] Enhanced equipment applicability: This design can adapt to the polarizer inspection needs of different raw material manufacturers. Polarizers produced by different manufacturers may have different characteristics and defect types. The setting of black and white reflective areas 10 can flexibly cope with these differences, eliminating the need to prepare inspection tabletops of different colors for different polarizers. This increases the equipment's applicability to different polarizers and reduces equipment costs and the complexity of inspection preparation.
[0045] In summary:
[0046] 1. The surface of the support table 1 is connected to the conveyor belt 2 via the conveyor rollers 3 and the drive motor 4 to perform reflection detection on the surface of the polarizer. By setting white reflection area 10 and black reflection area 11 on the surface of the conveyor belt 2 for detection, it is possible to eliminate the need to frequently change the tabletop reflection inspection color when inspecting polarizers produced by different material manufacturers. This reduces the time and cost of equipment adjustment and replacement, improves detection efficiency and equipment versatility, and can quickly adapt to diverse polarizer detection tasks, effectively reducing the enterprise's investment and operating costs in detection equipment.
[0047] 2. The polarizer entering the conveyor belt 2 is guided and positioned by a metal guide plate 18 on the surface of the support platform 1. A light shield 12 is set to shield the surface of the conveyor belt 2 during inspection. When inspecting polarizers that are more sensitive to light, the light shield 12 can be adjusted to a suitable position to reduce external light interference, making the reflected light clearer and purer, and facilitating accurate observation of the polarizer's condition. The structure of the filter 13 can adjust the contrast of the light source during inspection. According to different raw material characteristics and inspection requirements, the angle adjustment frame can be rotated to select a filter 13 with appropriate light transmittance and place it on the path of the reflected light, thereby adjusting the intensity and contrast of the reflected light, more accurately detecting defects or characteristic differences in the polarizer, ensuring the quality of the inspection environment for the polarizer, and improving the inspection accuracy.
[0048] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A reflector for desktop inspection of polarizing films, comprising a support platform (1) and a conveyor belt (2), characterized in that: The support platform (1) is provided in two sets, and a conveyor belt (2) is provided between adjacent support platforms (1). The conveyor belt (2) has conveyor rollers (3) at both ends inside, and a drive motor (4) is connected to the end of one side of the conveyor roller (3). The surface of the conveyor belt (2) is provided with a white reflection area (10) and a black reflection area (11). The support platform (1) is provided with a light shield (12) on both sides. The top of the conveyor belt (2) is provided with a filter (13). A filter storage tank (16) is bolted to the outside of the support platform (1). The filter storage tank (16) is provided with multiple filters (13) inside.
2. A reflective plate for desktop inspection of polarizers according to claim 1, characterized in that: The support platform (1) has a first adjustment track (5) and a second adjustment track (6) on its top surface. The first adjustment track (5) has a light-shielding damping shaft seat (7) that slides inside it. The light-shielding damping shaft seat (7) is axially connected to the bottom edge of the light-shielding plate (12).
3. A reflective plate for desktop inspection of polarizers according to claim 2, characterized in that: The second adjustment track (6) is slidably provided with a filter damping shaft seat (8), and the top of the filter damping shaft seat (8) is axially connected with a multi-axis adjustment arm (9). The top of the multi-axis adjustment arm (9) is axially connected with a magnetic base (14), and the magnetic base (14) is provided with a filter (13) inside.
4. A reflective plate for desktop inspection of polarizers according to claim 3, characterized in that: The magnetic base (14) is magnetically connected to a magnetic cover plate (15) on its top surface. The magnetic cover plate (15) is the same size as the magnetic base (14), and the edge of the magnetic cover plate (15) is engaged with the edge of the top surface of the magnetic base (14). The side cross-sections of the magnetic base (14) and the magnetic cover plate (15) are both L-shaped.
5. A reflective plate for desktop inspection of polarizers according to claim 1, characterized in that: The filter storage tank (16) is provided with multiple partition bars (17) inside, and the filter (13) is located in the space between adjacent partition bars (17).
6. A reflective plate for desktop inspection of polarizers according to claim 1, characterized in that: Metal guide plates (18) are welded to one end of the inner side of the support platform (1) near the conveyor belt (2), and adjacent metal guide plates (18) are symmetrically distributed along both sides of the conveyor belt (2).
7. A reflective plate for desktop inspection of polarizers according to claim 1, characterized in that: The white reflective area (10) and the black reflective area (11) are distributed along the surface of the conveyor belt (2) and have the same area size. The end of the conveyor roller (3) is movably connected to the surface of the support platform (1).