A polarizing sheet detecting mechanism

Abstract

The utility model relates to polarizing plate detection technical field, proposes a kind of polarizing plate detection mechanism, including dark box, light source assembly is arranged in the lower part in dark box, brightness tester is arranged on dark box, and the measuring probe of brightness tester is arranged in the upper part in dark box and is just opposite with light source assembly;The left and right sides of the middle part of dark box are both provided with window;Further include: sliding plate, slidingly set in window, sliding plate is through the window of both sides, and the two detection windows of interval distribution are arranged on sliding plate, detection window is used to carry polarizing plate, after one of detection window is located between light source assembly and measuring probe, sliding plate blocks the window of both sides, and another detection window is located outside dark box. Through the above technical scheme, the problem of long waiting time for replacing polarizing plate and low detection efficiency in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of polarizer testing technology, and in particular to a polarizer testing mechanism. Background Technology

[0002] The higher the transmittance of a polarizer, the better its performance; therefore, the transmittance of polarizers needs to be tested.

[0003] The utility model patent with application number 201721554828.7 discloses the basic principle of transmittance detection. It uses a light source component and a brightness tester to detect the transmittance of a polarizer and calculates the transmittance through numerical calculation. The detection process needs to be carried out in a dark environment in a dark box to reduce interference from the external environment.

[0004] However, when performing tests inside the darkroom, it is necessary to repeatedly open and close the darkroom when taking out and putting in polarizers. The darkroom has multiple components, and both the flip-top switch and the lifting switch are cumbersome to operate. After opening the darkroom, the polarizer that has been tested must be taken out first, and then a new polarizer to be tested must be put in. After closing the darkroom, the test can begin. The waiting time for changing polarizers is relatively long, which is not convenient for rapid testing and results in low testing efficiency.

[0005] The existing technology suffers from long waiting times and low detection efficiency when replacing polarizers, problems that need to be addressed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a polarizer testing mechanism that addresses the above-mentioned technical deficiencies. This mechanism solves the problems of long waiting time for replacing polarizers and low testing efficiency in the prior art.

[0007] The technical solution adopted by this utility model is as follows: A polarizer detection mechanism is provided, including a dark box, a light source assembly disposed in the lower part of the dark box, a brightness tester disposed on the dark box, and a measuring probe of the brightness tester disposed in the upper part of the dark box and directly opposite the light source assembly; the dark box has windows on both the left and right sides of its central section; and further includes: A sliding plate is slidably disposed within the window, the sliding plate passing through the window on both sides, the sliding plate having two detection windows spaced apart, the detection windows being used to hold polarizers, when one of the detection windows is located between the light source assembly and the measuring probe, the sliding plate blocks the windows on both sides, the other detection window being located outside the dark box.

[0008] To further optimize this technical solution, the slide plate located between the two detection windows has a sealing section that slides between the two windows to block one of the windows.

[0009] Further optimization of this technical solution also includes: A retaining ring is fitted around the periphery of the sealing section and located in the middle of the sealing section, the sealing section being used to insert into one of the windows, and the retaining ring abutting against the inner wall of the dark box.

[0010] To further optimize this technical solution, the retaining ring is a rubber ring.

[0011] To further optimize this technical solution, a slot is provided around the window on the outer wall of the dark box, and both ends of the slide plate are provided with light-shielding plates, which are respectively used to insert into the slots on both sides.

[0012] Further optimization of this technical solution also includes: The support has two members, one on each side of the skateboard. The lower end of the support is flush with the bottom of the dark box to support the skateboard.

[0013] To further optimize this technical solution, the detection window has a transparent substrate, which is used to support the polarizer.

[0014] To further optimize this technical solution, the detection window is a stepped aperture, and it also includes: The positioning frame has two parts, and one positioning frame is inserted into each positioning frame. The positioning frame is used to fix the polarizer.

[0015] To further optimize this technical solution, the brightness tester also includes a display module, the measuring probe is connected to the display module, and the display module is located at the upper end of the dark box.

[0016] The beneficial effects of this utility model are as follows: 1. Two detection windows are set on the slide plate. When the polarizer on the detection window inside the dark box is being tested, the polarizer on the detection window outside the dark box can be replaced, reducing the waiting time for replacing the polarizer and improving the detection efficiency.

[0017] 2. The polarizer can be replaced by sliding the slide plate, eliminating the need to open the darkroom, making operation more convenient and faster. After one detection window is inside the darkroom, one end and the middle of the slide plate block the windows on both sides to block light, creating a dark environment inside the darkroom. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the left-side structure of this utility model; Figure 3 For the present utility model Figure 2 Schematic diagram of the cross-sectional structure at position AA; Figure 4 For the present utility model Figure 3 A magnified schematic diagram of the structure at point a in the middle; Figure 5 For the present utility model Figure 3 A magnified schematic diagram of the structure at point b in the middle; Figure 6 This is a schematic diagram of the skateboard structure after it has moved according to this utility model; Figure 7 For the present utility model Figure 6 A schematic diagram of the cross-sectional structure; Figure 8 This is a schematic diagram of the skateboard structure of this utility model; Figure 9 This is a schematic diagram of the positioning frame structure of this utility model; Figure 10 This is a cross-sectional view of the positioning frame of this utility model; The markings in the diagram are as follows: 1. Dark box; 101. Window; 102. Light source assembly; 103. Brightness tester; 1031. Measuring probe; 1032. Display module; 104. Slot; 2. Slide plate; 201. Detection window; 202. Sealing section; 3. Retaining ring; 4. Light shield; 5. Bracket; 6. Transparent substrate; 7. Positioning frame; 701. Limiting groove. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0021] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figure 1-10 As shown, a polarizer testing mechanism includes a dark box 1, a light source assembly 102 disposed in the lower part of the dark box 1, a brightness tester 103 disposed on the dark box 1, and a measuring probe 1031 of the brightness tester 103 disposed in the upper part of the dark box 1 and directly opposite the light source assembly 102; the dark box 1 has windows 101 on both the left and right sides of the middle part; it also includes a sliding plate 2, which is slidably disposed in the windows 101 and passes through the windows 101 on both sides. The sliding plate 2 has two detection windows 201 spaced apart, and the detection windows 201 are used to support the polarizer. When one of the detection windows 201 is located between the light source assembly 102 and the measuring probe 1031, the sliding plate 2 blocks the windows 101 on both sides, and the other detection window 201 is located outside the dark box 1.

[0024] In use, one detection window 201 on the slide plate 2 is inside the dark box 1, and the other detection window 201 is outside the dark box 1. Polarizing films are placed on both detection windows 201. Inside the dark box 1, the polarizing films are located between the light source assembly 102 and the measuring probe 1031. The transmittance is automatically detected by the brightness tester 103. After the detection is completed, slide the slide plate 2 to move the inner detection window 201 to the outside of the dark box 1. At the same time, the outer detection window 201 moves to the inside of the dark box 1 to detect the transmittance. At this time, the polarizing film that has been tested on the outer detection window 201 can be removed and replaced with a new transmittance film to be tested, reducing the waiting time for replacing the polarizing film and eliminating the need to open the dark box 1.

[0025] During the sliding process of the slide plate 2, one end of the slide plate 2 engages with the window 101 on the adjacent side to achieve light blocking, while the middle part of the slide plate 2 engages with the window 101 on the other side to achieve light blocking. Inside the window 101, a sealing strip can be set along a ring to ensure a good airtight light blocking effect when the slide plate 2 is partially engaged inside the window 101, and positioning can be achieved by friction.

[0026] The polarizer can be placed or fixed on the detection window 201 using existing technologies. When the polarizer needs to be fixed, a fixing mechanism can be provided on the detection window 201 for detachable fixing.

[0027] Furthermore, located between the two detection windows 201, the slide plate 2 has a sealing section 202 that slides between the two windows 101 to block one of the windows 101.

[0028] In use, the middle part of the slide plate 2 is a sealing section 202, which is inserted and sealed with the windows 101 on both sides. When the slide plate 2 slides left and right to change the position of the detection window 201, the sealing section 202 can be inserted and sealed with the left window 101 or the right window 101.

[0029] Furthermore, it also includes: a retaining ring 3, which is sleeved around the sealing section 202 and located in the middle of the sealing section 202, the sealing section 202 being used to insert into one of the windows 101, and the retaining ring 3 abutting against the inner wall of the dark box 1. The retaining ring 3 is a rubber ring.

[0030] During use, a retaining ring 3 is installed in the middle of the sealing section 202. The retaining ring 3 abuts against the inner wall of the dark box 1, which can improve the sealing and light-blocking performance. When the end of the sliding plate 2 is sealed with one window 101, the sealing section 202 is sealed with the other window 101. The retaining ring 3 can be made of rubber. The rubber ring can better abut against the inner wall of the dark box 1 and block light, and has strong adaptability.

[0031] Furthermore, a slot 104 is provided around the window 101 on the outer wall of the dark box 1, and both ends of the slide plate 2 are provided with light shields 4, which are respectively used to insert into the slots 104 on both sides.

[0032] When in use, a recessed slot 104 is provided on the outer wall of the dark box 1 around the window 101. The end of the slide plate 2 is inserted into the window 101 for sealing, and the end baffle is inserted into the slot 104 to improve the sealing and light-blocking effect.

[0033] Furthermore, it also includes: There are two brackets 5, one on each side of the slide plate 2. The lower end of the bracket 5 is flush with the bottom end of the dark box 1 to support the slide plate 2.

[0034] When in use, the bracket 5 is located outside the dark box 1. The brackets 5 on both sides of the slide 2 can provide stable support for the slide 2. When half of the slide 2 is outside the dark box 1, it is in a suspended state. The stability can be improved by the support of the bracket 5.

[0035] The lower end of bracket 5 can be cylindrical to reduce the contact area, providing stable support and easy movement. Rollers can also be rotatably mounted on the lower end of bracket 5 to reduce movement resistance and make movement smoother.

[0036] Furthermore, the detection window 201 has a transparent substrate 6, which is used to support the polarizer.

[0037] In use, a polarizer is placed on the detection window 201, and the light from the light source assembly 102 passes through the detection window 201 and is projected onto the polarizer. The detection window 201 can be a transparent substrate 6, with the polarizer placed on top. The polarizer can be positioned in the middle of the transparent substrate 6, ensuring it is directly opposite the light source assembly 102. A pressure plate or frame structure can be added to position the polarizer according to existing technology. The height of the detection field can be located in the middle of the window 101, ensuring the polarizer can pass through the window 101.

[0038] Furthermore, the detection window 201 is a stepped aperture, and also includes: There are two positioning frames 7, and one positioning frame 7 is inserted into each positioning frame 7. The positioning frame 7 is used to fix the polarizer.

[0039] In use, the detection window 201 is a stepped hole, and the polarizer is supported by the internally inserted positioning frame 7. The positioning frame 7 is easy to replace. The positioning frame 7 has a limiting groove 701, and a transparent substrate 6 is set in the limiting groove 701. The limiting groove 701 can be adapted to the shape according to the structure and size of the polarizer, so as to facilitate stable placement and positioning of the polarizer.

[0040] Furthermore, the brightness tester 103 also includes a display module 1032, the measuring probe 1031 is connected to the display module 1032, and the display module 1032 is disposed at the upper end of the dark box 1.

[0041] In use, both the light source assembly 102 and the brightness tester 103 are existing technologies, enabling the detection of light transmittance and display of the detection structure on the display module 1032. The dark box 1 can be a split structure with upper and lower parts.

[0042] It is understood that this utility model has been described through some embodiments, and those skilled in the art will know that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A polarizer testing mechanism, comprising a dark box (1), wherein a light source assembly (102) is disposed in the lower part of the dark box (1), and a brightness tester (103) is disposed on the dark box (1), wherein the measuring probe (1031) of the brightness tester (103) is disposed in the upper part of the dark box (1) and directly opposite to the light source assembly (102); characterized in that, The dark box (1) has windows (101) on both the left and right sides of its central part; it also includes: A sliding plate (2) is slidably disposed inside the window (101). The sliding plate (2) passes through the windows (101) on both sides. The sliding plate (2) has two detection windows (201) spaced apart. The detection windows (201) are used to carry polarizers. When one of the detection windows (201) is located between the light source assembly (102) and the measuring probe (1031), the sliding plate (2) blocks the windows (101) on both sides. The other detection window (201) is located outside the dark box (1).

2. The polarizer testing mechanism according to claim 1, characterized in that, Located between the two detection windows (201), the slide plate (2) has a sealing section (202) that slides between the two windows (101) to block one of the windows (101).

3. The polarizer testing mechanism according to claim 2, characterized in that, Also includes: A retaining ring (3) is fitted around the sealing section (202) and located in the middle of the sealing section (202). The sealing section (202) is used to insert into one of the windows (101). The retaining ring (3) abuts against the inner wall of the dark box (1).

4. The polarizer testing mechanism according to claim 3, characterized in that, The retaining ring (3) is a rubber ring.

5. A polarizer testing mechanism according to claim 2, characterized in that, The outer wall of the dark box (1) has a slot (104) around the window (101), and both ends of the slide plate (2) have light shields (4), which are respectively used to insert into the slots (104) on both sides.

6. The polarizer testing mechanism according to claim 5, characterized in that, Also includes: The bracket (5) has two parts, and the bracket (5) is provided on both sides of the slide (2). The lower end of the bracket (5) is flush with the bottom end of the dark box (1) to support the slide (2).

7. The polarizer testing mechanism according to claim 1, characterized in that, The detection window (201) has a transparent substrate (6) inside, which is used to carry a polarizer.

8. The polarizer testing mechanism according to claim 1, characterized in that, The detection window (201) is a stepped aperture, and also includes: There are two positioning frames (7), and one positioning frame (7) is inserted into each positioning frame (7). The positioning frame (7) is used to fix the polarizer.

9. A polarizer testing mechanism according to claim 1, characterized in that, The brightness tester (103) also includes a display module (1032), the measuring probe (1031) is connected to the display module (1032), and the display module (1032) is located at the upper end of the dark box (1).

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