Double-polarization detection device for thin film base material

Abstract

The utility model relates to a double-polarized light detection device for a film substrate, which comprises a fixed frame, an incident polaroid and a receiving polaroid are arranged on the inner side of the fixed frame, a fixed assembly is arranged between the incident polaroid and the receiving polaroid, and a light source assembly is arranged on one side, far away from the fixed assembly, of the incident polaroid. A detector is arranged on the side, away from the fixing assembly, of the receiving polaroid, the fixing assembly comprises a movable shell and a rotating mechanism used for driving the movable shell to rotate, two sets of movable plates are symmetrically arranged on one side of the movable shell, and a movable mechanism used for driving the two sets of movable plates to move face to face or back to back is arranged in the movable shell. The inner sides of the two movable shells are each provided with a first fixing piece and a second fixing piece which are used for fixing the film base material. According to the application, the film substrates of different types and sizes can be stably fixed, and then the film substrates can be flexibly adjusted to different angles, so that the test requirements of the film substrates are met.

Description

Technical Field

[0001] The utility model relates to the technical field of material detection, in particular to a double polarization detection device for a film substrate. Background Art

[0002] When manufacturers of thin film substrates such as PC and PMMA composite boards produce such materials, surface defects caused by uneven thickness of the production rollers can easily lead to surface defects on the materials, so a polarized light detection device is needed to detect them.

[0003] Patent application number CN202122228279.7 discloses a dual-polarization detection device for a thin film substrate, which relates to the technical field of optical material detection equipment, and includes a frame with a light source assembly fixedly arranged under the frame.

[0004] When inspecting general film substrates, it is generally necessary to inspect film substrates of different types and sizes. However, in the prior art such as the above-mentioned device, it is difficult to fix film substrates of different specifications and sizes on the inspection table when inspecting film substrates, which easily causes the film substrate to shake and affects the inspection results. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a dual polarization detection device for a film substrate, and the specific technical solution is as follows:

[0006] A dual-polarization detection device for a thin film substrate comprises a fixed frame, an incident polarizer and a receiving polarizer are arranged on the inner side of the fixed frame, a fixed component is arranged between the incident polarizer and the receiving polarizer, a light source component is arranged on the side of the incident polarizer away from the fixed component, a detector is arranged on the side of the receiving polarizer away from the fixed component, the fixed component comprises a movable shell and a rotating mechanism for driving the movable shell to rotate, two groups of movable plates are symmetrically arranged on one side of the movable shell, a movable mechanism for driving the two groups of movable plates to move toward or away from each other is arranged inside the movable shell, and a first fixing member and a second fixing member for fixing the thin film substrate are arranged on the inner sides of the two movable shells.

[0007] As an improvement of the above technical solution: the movable mechanism includes a second threaded rod rotatably connected between two sides of the inner wall of the movable shell, two groups of movable blocks are symmetrically threaded on the second threaded rod, a strip is opened on the side of the movable shell close to the movable plate, one end of the movable block passes through the strip and is fixedly connected to one end of the movable shell, one end of the second threaded rod passes through the outside of the movable shell and is fixedly connected to the first turning handle, and a limiting rod parallel to the second threaded rod is fixedly connected to the inside of the movable shell, and one end of the two movable blocks are slidably sleeved on the surface of the limiting rod.

[0008] As an improvement of the above technical solution: the rotating mechanism includes a driving motor fixedly connected to the middle of the inner side of the fixed frame, and the output shaft of the driving motor is fixedly connected to the middle of one side of the movable shell.

[0009] As an improvement of the above technical solution: the first fixing part includes a plurality of fixing sleeves fixedly connected to the inner side of the movable plate near one end of the movable shell, a side groove is opened at the other end of the inner side of the movable plate, a first threaded rod is threadedly connected to the top of the side groove, the top of the first threaded rod extends to the top of the movable plate and is fixedly connected to the second turning handle, and the bottom end of the first threaded rod extends to the inside of the side groove and is fixedly connected to the clamping plate.

[0010] As an improvement of the above technical solution: it also includes a controller fixedly mounted on the fixed frame, and the controller is electrically connected to the detector.

[0011] As an improvement of the above technical solution: one end of the incident polarizer is fixedly connected to the inner upper part of the fixed frame through a first fixing plate, one end of the receiving polarizer is fixedly connected to the inner lower part of the fixed frame through a second fixing plate, and the detector is arranged at the inner bottom of the fixed frame.

[0012] As an improvement of the above technical solution: the light source assembly is a halogen tungsten lamp or an LED, and the detector is a photodiode or a photomultiplier tube light sensor.

[0013] Beneficial effects of the utility model:

[0014] According to the type of film substrate, the end of the film substrate is inserted into the fixed sleeve or side groove. After the film substrate is fixed and clamped, the first handle is turned by hand to drive the second threaded rod, so that the two movable blocks move toward each other, and the two ends of the movable plate are gradually close to the movable plate, so that the fixed sleeve or side groove gradually clamps the film substrate firmly. When the film substrate is inserted into the side groove, the first threaded rod can be turned to make the clamping plate clamp the film substrate more stably. After clamping, the light source assembly is started to detect the film substrate. The present application can stably fix film substrates of different types and sizes, and then flexibly adjust the film substrate to different angles to meet the testing needs of the film substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the fixing component in the utility model;

[0017] Figure 3 It is a schematic diagram of the internal structure of the movable shell in the utility model.

[0018] Figure numerals: 1. fixed frame; 2. light source assembly; 3. fixed assembly; 31. driving motor; 32. movable shell; 320. strip mouth; 321. second threaded rod; 322. movable block; 323. limit rod; 33. movable plate; 330. side groove; 34. first threaded rod; 35. clamping plate; 36. fixed sleeve; 4. first fixed plate; 41. incident polarizer; 5. second fixed plate; 51. receiving polarizer; 6. detector. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] Example

[0021] Please refer to Figure 1-Figure 3 , a dual-polarization detection device for a film substrate, comprises a fixed frame 1, an incident polarizer 41 and a receiving polarizer 51 are arranged on the inner side of the fixed frame 1, specifically, linear polarized light is generated by the incident polarizer 41 and incident on the film substrate, and the receiving polarizer 51 is used to receive and analyze the polarization characteristics of the reflected light, a fixed component 3 is arranged between the incident polarizer 41 and the receiving polarizer 51, a light source component 2 is arranged on the side of the incident polarizer 41 away from the fixed component 3, and a light source is provided by the light source component 2, a detector 6 is arranged on the side of the receiving polarizer 51 away from the fixed component 3, and a reflected light signal is received by the detector 6, the fixed component 3 comprises a movable shell 32 and a rotating mechanism for driving the movable shell 32 to rotate, two groups of movable plates 33 are symmetrically arranged on one side of the movable shell 32, and a movable mechanism for driving the two groups of movable plates 33 to move toward or away from each other is arranged inside the movable shell 32, and a first fixing member and a second fixing member for fixing the film substrate are arranged on the inner sides of the two movable shells 32.

[0022] In an optional embodiment, the movable mechanism includes a second threaded rod 321 rotatably connected between the two sides of the inner wall of the movable shell 32, and two groups of movable blocks 322 are symmetrically threadedly connected on the second threaded rod 321. A strip opening 320 is opened on one side of the movable shell 32 close to the movable plate 33, and one end of the movable block 322 passes through the strip opening 320 and is fixedly connected to one end of the movable shell 32. One end of the second threaded rod 321 passes through the outside of the movable shell 32 and is fixedly connected to the first turning handle. The second threaded rod 321 is convenient to rotate through the first turning handle. 1 rotates, a limiting rod 323 parallel to the second threaded rod 321 is fixedly connected to the inside of the movable housing 32, one end of the two movable blocks 322 is slidably sleeved on the surface of the limiting rod 323, and the two movable blocks 322 are limited by the limiting rod 323. Two groups of threads with opposite directions are arranged on the second threaded rod 321, and the threads match the inner side walls of the movable blocks 322. When the movable blocks 322 are rotated, the two groups of movable blocks 322 can move toward or away from each other, driving the movable plate 33 to move toward or away from each other.

[0023] In an optional embodiment, the rotating mechanism includes a driving motor 31 fixedly connected to the middle of the inner side of the fixed frame 1 , and the output shaft of the driving motor 31 is fixedly connected to the middle of one side of the movable shell 32 .

[0024] In an optional embodiment: the first fixing member includes a plurality of fixing sleeves fixedly connected to the inner side of the movable plate 33 near one end of the movable shell 32, a side groove 330 is opened at the other end of the inner side of the movable plate 33, the top of the side groove 330 is threadedly connected to the first threaded rod 34, the top of the first threaded rod 34 extends to the top of the movable plate 33 and is fixedly connected to the second handle, the bottom end of the first threaded rod 34 extends to the inside of the side groove 330 and is fixedly connected to the clamping plate 35, specifically, the plate-like film substrate can be clamped and fixed by the clamping plate 35, and the cylindrical film substrate can be clamped and fixed by the fixing sleeve 36.

[0025] In an optional embodiment: it also includes a controller fixedly mounted on the fixing frame 1 , and the controller is electrically connected to the detector 6 .

[0026] In an optional embodiment: one end of the incident polarizer 41 is fixedly connected to the inner upper part of the fixed frame 1 through the first fixing plate 4, one end of the receiving polarizer 51 is fixedly connected to the inner lower part of the fixed frame 1 through the second fixing plate 5, and the detector 6 is arranged at the inner bottom of the fixed frame 1.

[0027] In an optional embodiment: the light source assembly 2 is a halogen tungsten lamp or an LED, and the detector 6 is a photodiode or a photomultiplier tube light sensor.

[0028] Specifically, when inspecting the thin film substrate, a light source is first emitted through the light source assembly 2, and linear polarized light is generated through the incident polarizer 41 and incident on the thin film substrate sample. Due to the refraction effect of the thin film material, two beams of polarized light with two vibration directions, ordinary light and extraordinary light, are generated. By analyzing the intensity and phase changes of the reflected light, the refractive index, thickness, stress and other parameters of the thin film material can be obtained.

[0029] Specifically, firstly, the film substrate to be tested is placed between the two movable plates 33. According to the type of the film substrate, the end of the film substrate is inserted into the fixed sleeve 36 or the side groove 330. After the film substrate is fixed and clamped, the first turning handle is manually rotated to drive the second threaded rod 321, so that the two movable blocks 322 move toward each other, and the two ends of the movable plate 33 are gradually close to the movable plate 33, so that the fixed sleeve 36 or the side groove 330 gradually clamps the film substrate firmly. When the film substrate is inserted into the side groove 330, the first threaded rod 34 can be rotated to make the clamping plate 35 clamp the film substrate more stably. After clamping, the light source assembly 2 is started to detect the film substrate. When different irradiation angles of the film substrate need to be detected, the angle of the entire film substrate can be adjusted by controlling the driving motor 31 to drive the movable shell 32 to rotate, and the film substrate with the same angle can be detected. Then, the present application can be used to stably fix film substrates of different types and sizes, and then the film substrate can be flexibly adjusted to different angles to meet the testing requirements of the film substrate.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dual polarization detection device for a film substrate, characterized in that: The invention comprises a fixed frame (1), wherein an incident polarizing plate (41) and a receiving polarizing plate (51) are arranged on the inner side of the fixed frame (1), a fixed component (3) is arranged between the incident polarizing plate (41) and the receiving polarizing plate (51), a light source component (2) is arranged on the side of the incident polarizing plate (41) away from the fixed component (3), and a detector (6) is arranged on the side of the receiving polarizing plate (51) away from the fixed component (3), the fixed component (3) comprises a movable shell (32) and a rotating mechanism for driving the movable shell (32) to rotate, two groups of movable plates (33) are symmetrically arranged on one side of the movable shell (32), a movable mechanism for driving the two groups of movable plates (33) to move towards or away from each other is arranged inside the movable shell (32), and a first fixing member and a second fixing member for fixing a film substrate are arranged on the inner sides of the two movable shells (32).

2. The dual polarization detection device for a thin film substrate according to claim 1, characterized in that: The movable mechanism comprises a second threaded rod (321) rotatably connected between two sides of the inner wall of the movable shell (32); two groups of movable blocks (322) are symmetrically threadedly connected on the second threaded rod (321); a strip opening (320) is provided on one side of the movable shell (32) close to the movable plate (33); one end of the movable block (322) passes through the strip opening (320) and is fixedly connected to one end of the movable shell (32); one end of the second threaded rod (321) passes through the outside of the movable shell (32) and is fixedly connected to the first turning handle; a limiting rod (323) parallel to the second threaded rod (321) is fixedly connected to the inside of the movable shell (32); one end of the two movable blocks (322) are slidably sleeved on the surface of the limiting rod (323).

3. The dual polarization detection device for a film substrate according to claim 2, characterized in that: The rotating mechanism comprises a driving motor (31) fixedly connected to the middle part of the inner side of the fixed frame (1), and an output shaft of the driving motor (31) is fixedly connected to the middle part of one side of the movable housing (32).

4. The dual polarization detection device for a film substrate according to claim 3, characterized in that: The first fixing member comprises a plurality of fixing sleeves (36) fixedly connected to the inner side of the movable plate (33) near one end of the movable shell (32); a side groove (330) is provided at the other end of the inner side of the movable plate (33); a first threaded rod (34) is threadedly connected to the top of the side groove (330); a top end of the first threaded rod (34) extends to the upper side of the movable plate (33) and is fixedly connected to a second turning handle; a bottom end of the first threaded rod (34) extends to the inside of the side groove (330) and is fixedly connected to a clamping plate (35).

5. The dual polarization detection device for a film substrate according to claim 4, characterized in that: It also includes a controller fixedly mounted on the fixed frame (1), and the controller is electrically connected to the detector (6).

6. The dual polarization detection device for a film substrate according to claim 1, characterized in that: One end of the incident polarizer (41) is fixedly connected to the inner upper part of the fixed frame (1) via a first fixing plate (4), one end of the receiving polarizer (51) is fixedly connected to the inner lower part of the fixed frame (1) via a second fixing plate (5), and the detector (6) is arranged at the inner bottom of the fixed frame (1).

7. The dual polarization detection device for a film substrate according to claim 1, characterized in that: The light source component (2) is a halogen tungsten lamp or an LED, and the detector (6) is a photodiode or a photomultiplier tube light sensor.

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