Optical diffusion sheet detection equipment and detection method thereof

Abstract

The invention relates to the technical field of optical diffusion sheet processing, in particular to optical diffusion sheet detection equipment and a detection method thereof.The optical diffusion sheet detection equipment comprises a bottom frame, a detection table is fixedly connected to the top of the bottom frame, and a dust removal mechanism is arranged on the front side of the top of the detection table; through arrangement of the bottom frame, the detection table and the dust removal mechanism, automatic operation of the process of spraying clean gas to the optical diffusion sheet is achieved, the production efficiency is greatly improved, the whole device works cooperatively through a precise mechanical structure and an electric control system, the production efficiency is greatly improved, and the production cost is reduced. According to the automatic spraying device for the optical diffusion sheets, it is ensured that each optical diffusion sheet can obtain accurate and even clean gas to be sprayed, automation is achieved in each step from placing, limiting and adsorbing of the optical diffusion sheets to extracting, pushing and final spraying of the clean gas, complexity and errors of manual operation are reduced, and the product quality and the production speed are improved.

Description

Technical Field

[0001] This invention relates to the field of optical diffuser processing technology, and more specifically, to an optical diffuser testing device and a testing method thereof. Background Technology

[0002] An optical diffuser is an optical element that scatters and diffuses light, thereby altering the direction and distribution of light propagation. It has wide applications in numerous fields such as liquid crystal displays (LCDs), lighting, and projection. In LCDs, optical diffusers can homogenize the light emitted from the backlight, reducing uneven brightness and improving the quality and visual effect of the displayed image. In lighting, it makes the light softer and more uniform, avoiding glare and creating a comfortable lighting environment. Its principle is primarily based on the scattering effect of the material's internal microstructure on light; different microstructures and material properties result in optical diffusers with varying diffusion properties and optical effects.

[0003] According to patent document CN116593138B, an optical diffuser testing device and method are disclosed. The device includes a mounting base, illumination lamps and a screen mounted on both sides of the mounting base. The mounting base is equipped with a motor and a horizontal moving assembly, mounted on the mounting base, for driving the illumination lamps to move horizontally back and forth, sequentially testing multiple points on the diffuser at the same height. The assembly includes a turntable connected to the motor, with an eccentrically mounted fixed post for manipulating the horizontal reciprocating movement of the illumination lamp, and an intermittent gear on the rotating shaft. The illumination lamp also has a movable lever with resistors one and two for adjusting the incoming current. A vertical moving assembly is used to lift the diffuser to sequentially test different heights. A support plate, which cooperates with the intermittent gear and intermittently lifts the diffuser, is movably mounted on the fixed frame. This invention provides more accurate and comprehensive testing by sequentially testing multiple points on the diffuser and detecting different brightness levels.

[0004] When inspecting optical diffusers, workers typically remove them from the production line and then perform laser measurements. However, during the processing of optical diffusers, dust and impurities may appear. These impurities adhere to the surface of the optical diffuser and affect the subsequent laser measurement results. For example, dust and impurities may scatter or absorb the laser light, causing deviations in the measured light intensity, light distribution, and other data. This makes the measurement results unable to accurately reflect the true performance of the optical diffuser. In addition, under the traditional manual removal and inspection method, the worker's operation may introduce new impurities or cause slight damage to the surface of the optical diffuser, which will also adversely affect the accuracy of the inspection. Summary of the Invention

[0005] To overcome the aforementioned deficiencies of the prior art, this invention provides an optical diffuser testing device and method. The technical problem this invention aims to solve is that during the processing of optical diffusers, floating dust and impurities may appear. These impurities adhere to the surface of the optical diffuser, thus affecting subsequent laser measurement results. For example, floating dust and impurities may scatter or absorb laser light, causing deviations in the measured light intensity, light distribution, and other data, making the measurement results unable to accurately reflect the true performance of the optical diffuser. Furthermore, in the traditional manual removal testing method, the operator's operation may further introduce new impurities or cause slight damage to the surface of the optical diffuser, which will also adversely affect the accuracy of the test.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] An optical diffuser testing device includes a base frame, a testing platform fixedly connected to the top of the base frame, a dust removal mechanism provided on the front side of the top of the testing platform, and a laser measuring instrument fixedly connected to the top of the rear side of the dust removal mechanism.

[0008] The base frame includes a support frame, and the left and right sides of the inner side of the support frame are movably connected with expansion and contraction components;

[0009] The testing station includes a conveyor plate, with conveyor side plates fixedly connected to both the left and right sides of the conveyor plate. The front side of the middle part of the conveyor plate has a hollow design, and an adsorption tube is rotatably connected to the inner wall of the front side of the middle part of the conveyor plate.

[0010] The dust removal mechanism includes a clean gas storage tank. Storage tank connecting plates are fixedly connected to the top of both the left and right sides of the outer wall of the clean gas storage tank. L-shaped vertical support side plates are fixedly connected to the rear sides of the outer sides of the two storage tank connecting plates.

[0011] As a further embodiment of the present invention: the support frame includes two sets of L-shaped side panels, with an outer connecting side panel fixedly connected to the bottom of the outer side of each of the left and right sets of L-shaped side panels, and a top horizontal plate fixedly connected to the top of each of the front and rear sets of L-shaped side panels. U-shaped side panels are fixedly connected to the left and right sides of the top of each of the two top horizontal plates. Columnar crossbars are fixedly connected to the top and bottom of the inner side of each of the left and right sets of U-shaped side panels. Support plates are fixedly connected to the top of the outer side of each of the front and rear sets of U-shaped side panels. Concave side plates are fixedly connected to the left and right sides of the inner side of each of the two top horizontal plates. Hinge blocks are fixedly connected to the middle of the inner side of each of the two concave side plates.

[0012] As a further embodiment of the present invention: guide side plates are fixedly connected to the inner sides of the left and right sets of L-shaped side plates, and rear connecting horizontal plates are fixedly connected to the rear bottom of the two rear L-shaped side plates. An electric push rod is fixedly connected to the middle of the bottom of the rear connecting horizontal plate, and a concave sliding block is fixedly connected to the middle of the top of the rear connecting horizontal plate. A push-pull rod is slidably connected to the inner wall of the concave sliding block. A triangular abutment is fixedly connected to the front side of the push-pull rod, and a push-pull block connecting block is fixedly connected to the rear side of the push-pull rod. The triangular abutment is designed to be narrower from the front to the rear. The bottom of the front side of the push-pull block connecting block is fixedly connected to the rear end of the electric push rod.

[0013] As a further embodiment of the present invention: both of the expansion and contraction components include expansion and contraction side plates. A T-shaped connecting plate is fixedly connected to the top outer side of each of the two expansion and contraction side plates. The four sides of each expansion and contraction side plate are slidably connected to the left and right sides of the outer walls of two sets of columnar crossbars. Springs are fixedly connected to the front and rear sides of the outer sides of each of the two T-shaped connecting plates. The outer ends of the left and right sets of springs are fixedly connected to the inner sides of the two concave side plates. An arc-shaped rotating rod is rotatably connected to the middle of the outer side of each of the two T-shaped connecting plates. The middle of the outer walls of each arc-shaped rotating rod is rotatably connected to the inner walls of two hinge blocks. A rotating rod is rotatably connected to the bottom of the inner side of each arc-shaped rotating rod. An expansion and contraction block is rotatably connected to the side of each rotating rod away from the arc-shaped rotating rod. The outer walls of each expansion and contraction block are slidably connected to the middle of two guide side plates. A pulley is rotatably connected to the inner side of each expansion and contraction block. The outer walls of each pulley are abutted against the front sides of the left and right sides of the triangular abutment plate.

[0014] As a further embodiment of the present invention: both sides of the bottom of the conveyor plate are fixedly connected to the top center of the two pallets; concave side guide blocks are fixedly connected to the front sides of the top of the two conveyor plate sides; second concave side guide blocks are fixedly connected to the front and rear sides of the top of the two conveyor plate sides behind the concave side guide blocks; vertical L-shaped connecting side plates are fixedly connected to the rear sides of the top of the two conveyor plate sides; a storage tube is fixedly connected to the front side of the top inner side of the two vertical L-shaped connecting side plates; inverted concave guide block connecting plates are fixedly connected to the rear inner side of the two conveyor plate sides; inverted concave guide blocks are fixedly connected to the inner side of the two inverted concave guide block connecting plates; hinged side plates are fixedly connected to the left and right sides of the rear bottom of the conveyor plate; and a rotation control component is fixedly connected to the bottom of the adsorption tube.

[0015] As a further aspect of the present invention: a semi-circular push plate and push rod are slidably connected to the inner wall of the concave guide block; a semi-circular push plate is fixedly connected to the front side of the semi-circular push plate and push rod; a rectangular upright is fixedly connected to the rear side of the top of the semi-circular push plate and push rod; rotating side plates are rotatably connected to the rear sides of both the left and right sides of the semi-circular push plate and push rod; the outer middle parts of the two rotating side plates are rotatably connected to the inner sides of the two hinged side plates; and the bottom of the inner sides of the two rotating side plates are rotatably connected to the left and right sides of the push-pull block connecting block. On the side, an arc-shaped limiting plate connecting rod is slidably connected to the inner side of each of the two concave side guide blocks. An arc-shaped limiting plate is fixedly connected to the inner side of each of the two arc-shaped limiting plate connecting rods. Rotary wheels are rotatably connected to the inner sides of each of the two arc-shaped limiting plates. An inverted L-shaped side plate is fixedly connected to the outer side of each of the two arc-shaped limiting plate connecting rods. An inverted L-shaped side plate expansion rod is fixedly connected to the bottom of the inner rear side of each of the two inverted L-shaped side plates. The inner sides of the two inverted L-shaped side plate expansion rods are fixedly connected to the outer sides of the two expansion side plates.

[0016] As a further embodiment of the present invention: the inner sides of the left and right sets of the second concave side guide blocks are slidably connected with slide rods, the inner sides of the left and right sets of slide rods are fixedly connected with limit plates, the bottoms of the two limit plates are slidably connected to the left and right sides of the rear top of the conveyor plate, and the outer sides of the two front slide rods are fixedly connected to the middle of the rear inner side of the two inverted L-shaped side plates.

[0017] As a further embodiment of the present invention: the bottom of the inner side of the two L-shaped vertical support side plates is fixedly connected to the front side of the outer side of the two conveyor side plates; an L-shaped connecting block is fixedly connected to the middle of the inner side of the two L-shaped vertical support side plates; an exhaust pipe is fixedly connected to the inner side of the two L-shaped connecting blocks; an exhaust pipe ventilation pipe is fixedly connected to the top of the outer wall of the exhaust pipe; the top of the exhaust pipe ventilation pipe is fixedly connected to the bottom of the clean gas storage tank; an air supply pipe is fixedly connected to the rear side of the exhaust pipe; a piston is slidably connected to the inner wall of the exhaust pipe; a columnar push-pull rod is fixedly connected to the front side of the piston; a columnar push-pull rod connecting plate is fixedly connected to the front end of the columnar push-pull rod; L-shaped push-pull side plates are fixedly connected to both the left and right sides of the columnar push-pull rod connecting plate; and the rear sides of the inner side of the two L-shaped push-pull side plates are fixedly connected to the top of the left and right sides of the rectangular upright.

[0018] As a further embodiment of the present invention: convex side plates are fixedly connected to the top of the inner sides of the two L-shaped vertical support side plates, convex connecting plates are fixedly connected to the rear sides of the two convex side plates, a robotic arm is fixedly connected to the front side of the convex connecting plate, an air extraction nozzle is fixedly connected to the bottom end of the robotic arm, the outer wall of the air extraction nozzle is fixedly connected to the end of the air delivery pipe away from the air extraction pipe, and the bottom of the air extraction nozzle is aligned with the top of the adsorption pipe.

[0019] In addition, the present invention also relates to an optical diffuser testing device and a testing method thereof, comprising the following steps:

[0020] Step 1: Place a set of optical diffusers in the storage tube, so that the bottom optical diffuser falls to the top of the conveyor plate and fits against the front side of the semi-circular pusher plate;

[0021] Step 2: Start the electric push rod, push the push-pull block connecting block to move backward, drive the push-pull rod and the triangular abutment plate to move backward, so that the two expansion blocks slide to both sides along the guide side plate, drive the rotating rod and the arc-shaped rotating rod to rotate, and let the expansion side plate slide to both sides on the columnar crossbar to compress the spring;

[0022] Step 3: The two expansion and retraction side plates move outward, causing the two inverted L-shaped side plate expansion and retraction rods to move outward, pushing the two inverted L-shaped side plates outward. Through the two inverted L-shaped side plates, the two arc-shaped limiting plate connecting rods pull the two arc-shaped limiting plates outward, opening the adsorption tube. At the same time, the two inverted L-shaped side plate expansion and retraction rods pull the two limiting plates to slide outward on the top of the conveyor plate, releasing the restriction on the optical diffuser sheet falling on the top of the conveyor plate.

[0023] Step 4: The push-pull block connecting block moves backward, causing the rotating side plate to rotate, pushing the semi-circular push plate and push rod and the semi-circular push plate forward. The semi-circular push plate pushes the bottom optical diffuser sheet forward to the top of the adsorption tube.

[0024] Step 5: The adsorption tube is activated, adsorbing and fixing the optical diffuser. The electric push rod moves in the opposite direction, causing the two expansion and retraction side plates to reset. The two arc-shaped limiting plate connecting rods push the two arc-shaped limiting plates to reset and, through multiple inner rotating wheels, adhere to the outer wall of the optical diffuser adsorbed at the top of the adsorption tube, further limiting the lens. The two inverted L-shaped expansion and retraction rods push the two limiting plates to reset inward, adhering to both sides of the outer wall of the newly fallen optical diffuser in the storage tube for limiting. The semi-circular push plate push rod and the semi-circular push plate reset to prepare for the next pushing operation.

[0025] Step Six: The semi-circular push plate pushes the semi-circular push plate to push the optical diffuser to the top of the adsorption tube, while simultaneously moving the rectangular upright forward. The rectangular upright moves the L-shaped push-pull side plate forward, which in turn moves the columnar push-pull rod connecting plate forward. The columnar push-pull rod connecting plate moves the columnar push-pull rod forward, and the columnar push-pull rod moves the piston forward within the extraction pipe, drawing the gas from the clean gas storage tank into the extraction pipe through the extraction pipe ventilation pipe.

[0026] Step 7: The semi-circular push plate and push rod reset, causing the rectangular upright to move backward. The rectangular upright drives the L-shaped push-pull side plate to move backward. The L-shaped push-pull side plate drives the columnar push-pull rod connecting plate to move backward. The columnar push-pull rod connecting plate drives the columnar push-pull rod to move backward. The columnar push-pull rod drives the piston to slide backward in the suction pipe, pushing the gas already drawn into the suction pipe to the suction nozzle through the gas delivery pipe. The clean gas is then evenly sprayed from the suction nozzle onto the optical diffuser located at the top of the adsorption tube by the robotic arm.

[0027] Step 8: Start the rotating control unit to drive the adsorption tube to rotate, which in turn drives the optical diffuser fixed on its top to rotate at a uniform speed, so that the dust removal mechanism can spray clean gas more evenly onto the entire surface of the optical diffuser. At this time, the laser measuring instrument begins to detect the optical diffuser. The laser beam emitted by the laser measuring instrument is accurately projected onto the surface of the optical diffuser after dust removal.

[0028] Step 9: After one set of optical diffusers is sprayed, the device automatically performs the placement, positioning, adsorption, and dust removal detection operations for the next set of optical diffusers.

[0029] The beneficial effects of this invention are as follows:

[0030] This invention, by incorporating a base frame, testing platform, dust removal mechanism, and laser measuring instrument, automates a series of operations including loading, dust removal, and testing of optical diffusers before inspection. This significantly improves testing efficiency and accuracy. The automated loading mechanism precisely transfers the optical diffuser from the storage tube to the testing position, avoiding errors and contamination that may occur with manual operation. The efficient dust removal mechanism utilizes high-pressure airflow and a rotating device to ensure that dust and impurities on the surface of the optical diffuser are thoroughly removed, providing a clean testing environment for subsequent inspections. The high-precision laser measuring instrument can quickly and accurately measure various optical parameters of the optical diffuser and transmit the data to the control terminal in real time, facilitating analysis and processing by operators. Furthermore, the invention features a rational structural design and tight coordination between components, ensuring a smooth and stable testing process. For example, the movement of the electric push rod precisely controls the actions of each component, guaranteeing the orderly execution of loading, dust removal, and testing operations. Simultaneously, the flexible adjustment function of the robotic arm can optimize the position and angle of the suction nozzle according to different testing requirements, further improving the dust removal effect. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the three-dimensional separation structure of the main body of the present invention;

[0033] Figure 3 This is a schematic diagram of the three-dimensional structure of the base frame of the present invention;

[0034] Figure 4 This is a schematic diagram of the three-dimensional detachable base frame structure of the present invention;

[0035] Figure 5 This is a schematic diagram of the three-dimensional separation structure of the support frame of the present invention;

[0036] Figure 6 This is a three-dimensional structural diagram of the expansion and contraction component of the present invention;

[0037] Figure 7 This is a three-dimensional structural diagram of the detection stage of the present invention;

[0038] Figure 8 This is a schematic diagram of the three-dimensional separation structure of the detection stage of the present invention;

[0039] Figure 9 This is a three-dimensional structural diagram of the dust removal mechanism of the present invention;

[0040] Figure 10 This is a schematic diagram of the three-dimensional separation structure of the dust removal mechanism of the present invention.

[0041] In the diagram: 1. Base frame; 11. Support frame; 111. L-shaped side upright plate; 112. Outer connecting side plate; 113. Top horizontal plate; 114. U-shaped side upright plate; 115. Columnar crossbar; 116. Support plate; 117. Concave side plate; 118. Hinge block; 119. Rear connecting horizontal plate; 1110. Electric push rod; 1111. Concave sliding block; 1112. Guide side plate; 1113. Push-pull rod; 1114. Triangular abutment plate; 1115. 1. Push-pull block connecting block; 12. Expanding and retracting component; 121. Expanding and retracting side plate; 122. T-shaped connecting plate; 123. Arc-shaped rotating rod; 124. Rotating rod; 125. Expanding and retracting block; 126. Pulley; 127. Spring; 2. Detection table; 21. Conveyor table plate; 22. Conveyor table side plate; 23. Adsorption tube; 24. Concave side guide block; 25. Second concave side guide block; 26. Storage tube; 27. Inverted concave guide block connecting plate; 28. Inverted concave... 29. Guide block; 210. Hinge side plate; 211. Semicircular push plate and push rod; 212. Semicircular push plate; 213. Rectangular upright; 214. Rotating side plate; 215. Slide rod; 216. Limiting plate; 217. Inverted L-shaped side plate expansion rod; 218. Inverted L-shaped side plate; 219. Arc-shaped limiting plate connecting rod; 2110. Rotating wheel; 2111. Vertical L-shaped connecting side plate; 2112. Rotation control component; 3. Dust removal mechanism 31. Clean gas storage tank; 32. Storage tank connecting plate; 33. L-shaped vertical support side plate; 34. L-shaped connecting block; 35. Suction pipe; 36. Suction pipe ventilation pipe; 37. Gas delivery pipe; 38. Convex plate side plate; 39. Convex connecting plate; 310. Robotic arm; 311. Suction nozzle; 312. Piston; 313. Columnar push-pull rod; 314. Columnar push-pull rod connecting plate; 315. L-shaped push-pull side plate; 4. Laser measuring instrument. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] like Figure 1-2 As shown, the present invention provides an optical diffuser testing device, including a base frame 1, a testing platform 2 fixedly connected to the top of the base frame 1, a dust removal mechanism 3 provided on the front side of the top of the testing platform 2, and a laser measuring instrument 4 fixedly connected to the top of the rear side of the dust removal mechanism 3.

[0044] like Figure 3-8As shown, the base frame 1 includes a support frame 11. Expanding members 12 are movably connected to the left and right sides of the inner side of the support frame 11. The support frame 11 includes two sets of L-shaped side panels 111. Outer connecting side panels 112 are fixedly connected to the bottom of the outer sides of both sets of L-shaped side panels 111. Top horizontal plates 113 are fixedly connected to the top of both sets of L-shaped side panels 111. U-shaped side panels 114 are fixedly connected to the top of the top of both top horizontal plates 113. Columnar crossbars 115 are fixedly connected to the top and bottom of the inner sides of both sets of U-shaped side panels 114. Support plates 116 are fixedly connected to the top of the outer sides of both sets of U-shaped side panels 114. Concave side plates 117 are fixedly connected to the left and right sides of the inner sides of both top horizontal plates 113. A hinge block 118 is fixedly connected to the middle of the inner side of plate 117. Guide side plates 1112 are fixedly connected to the inner sides of the two sets of L-shaped side plates 111. A rear connecting horizontal plate 119 is fixedly connected to the bottom of the rear two L-shaped side plates 111. An electric push rod 1110 is fixedly connected to the middle of the bottom of the rear connecting horizontal plate 119. A concave sliding block 1111 is fixedly connected to the middle of the top of the rear connecting horizontal plate 119. A push-pull rod 1113 is slidably connected to the inner wall of the concave sliding block 1111. A triangular abutment plate 1114 is fixedly connected to the front of the push-pull rod 1113. A push-pull block connecting block 1115 is fixedly connected to the rear of the push-pull rod 1113. The triangular abutment plate 1114 is designed to widen from front to back. The push-pull block connecting block 1115... The front bottom of component 15 is fixedly connected to the rear end of the electric push rod 1110. Both retractable components 12 include retractable side plates 121. T-shaped connecting plates 122 are fixedly connected to the top outer sides of both retractable side plates 121. The four sides of both retractable side plates 121 are slidably connected to the left and right sides of the outer walls of the two sets of columnar crossbars 115. Springs 127 are fixedly connected to the front and rear sides of the outer sides of the two T-shaped connecting plates 122. The outer ends of the left and right sets of springs 127 are fixedly connected to the inner sides of the two concave side plates 117. Arc-shaped rotating rods 123 are rotatably connected to the middle of the outer sides of both T-shaped connecting plates 122. The middle of the outer walls of the two arc-shaped rotating rods 123 are rotatably connected to the inner walls of the two hinge blocks 118. The bottom of each of the two rotating rods 124 is rotatably connected to a rotating rod 124. A contraction / expansion block 125 is rotatably connected to the side of each rotating rod 124 away from the arc-shaped rotating rod 123. The outer walls of the two contraction / expansion blocks 125 are slidably connected to the middle of the two guide side plates 1112. A pulley 126 is rotatably connected to the inner side of each contraction / expansion block 125. The outer walls of the two pulleys 126 are in contact with the front sides of the left and right sides of the triangular abutment plate 1114. The testing table 2 includes a conveyor plate 21. Conveyor side plates 22 are fixedly connected to the left and right sides of the conveyor plate 21. The front side of the middle of the conveyor plate 21 has a hollow design. An adsorption tube 23 is rotatably connected to the inner wall of the front side of the middle of the conveyor plate 21. The two sides of the bottom of the conveyor plate 21 are fixedly connected to the top center of the two support plates 116.Concave side guide blocks 24 are fixedly connected to the front of the top of each of the two conveyor side plates 22. Second concave side guide blocks 25 are fixedly connected to the front and rear sides of the top of each of the two conveyor side plates 22 behind the concave side guide blocks 24. Vertical L-shaped connecting side plates 2111 are fixedly connected to the rear of the top of each of the two conveyor side plates 22. A storage pipe 26 is fixedly connected to the front of the top of the inner side of each of the two vertical L-shaped connecting side plates 2111. Inverted concave guide block connecting plates 27 are fixedly connected to the rear of the inner side of each of the two conveyor side plates 22. The inner side of the two inverted concave guide block connecting plates 27 is fixedly connected to... A concave guide block 28 is connected to the bottom of the conveyor plate 21. Hinged side plates 29 are fixedly connected to the left and right sides of the rear bottom of the conveyor plate 21. A rotation control component 2112 is fixedly connected to the bottom of the suction tube 23. A semi-circular push plate and push rod 210 are slidably connected to the inner wall of the concave guide block 28. A semi-circular push plate 211 is fixedly connected to the front side of the semi-circular push plate and push rod 210. A rectangular upright 212 is fixedly connected to the rear top of the semi-circular push plate and push rod 210. Rotating side plates 213 are rotatably connected to the rear sides of both the left and right sides of the semi-circular push plate and push rod 210. The two rotating side plates 213... The outer middle part is rotatably connected to the inner side of the two hinged side plates 29. The bottom of the inner side of the two rotating side plates 213 is rotatably connected to the left and right sides of the push-pull block connecting block 1115. The inner side of the two concave side guide blocks 24 is slidably connected to the arc-shaped limiting plate connecting rod 218. The inner side of the two arc-shaped limiting plate connecting rod 218 is fixedly connected to the arc-shaped limiting plate 219. The inner sides of the two arc-shaped limiting plates 219 are rotatably connected to the rotating wheels 2110. The outer side of the two arc-shaped limiting plate connecting rod 218 is fixedly connected to the inverted L-shaped side plate 217. The two inverted L-shaped side plates... The bottom of the inner rear side of 217 is fixedly connected to an inverted L-shaped side plate expansion rod 216. The inner sides of the two inverted L-shaped side plate expansion rods 216 are fixedly connected to the outer sides of the two expansion side plates 121. The inner sides of the left and right sets of second concave side guide blocks 25 are slidably connected to slide rods 214. The inner sides of the left and right sets of slide rods 214 are fixedly connected to limit plates 215. The bottoms of the two limit plates 215 are slidably connected to the left and right sides of the top rear side of the conveyor plate 21. The outer sides of the two front slide rods 214 are fixedly connected to the middle of the inner rear side of the two inverted L-shaped side plates 217.

[0045] Before laser inspection, a set of optical diffusers is placed in the storage tube 26. At this time, the bottom optical diffuser falls to the top of the conveyor plate 21 and is in contact with the front side of the semi-circular push plate 211. Inspection is required. First, the electric push rod 1110 is started. The electric push rod 1110 pushes the push-pull block connecting block 1115 to move backward, which in turn drives the push-pull rod 1113 and the triangular abutment plate 1114 to move backward. Since the pulleys 126 on the inner side of the two expansion blocks 125 are in contact with the two sides of the triangular abutment plate 1114, and the triangular abutment plate 1114 is designed to increase in size from front to back, the movement of the triangular abutment plate 1114 to the rear pushes the two expansion blocks 125 to slide along the guide side plate 1112 to the sides, which in turn drives the rotating rod 1 24 rotates with the arc-shaped rotating rod 123, causing the expansion and contraction side plate 121 to slide to both sides on the columnar crossbar 115. The spring 127 is compressed, and the two expansion and contraction side plates 121 move outward, thereby driving the two inverted L-shaped side plate expansion and contraction rods 216 to move outward and pushing the two inverted L-shaped side plates 217 to move outward. Then, through the two inverted L-shaped side plates 217, the two arc-shaped limiting plate connecting rods 218 pull the two arc-shaped limiting plates 219 to move outward, so that the adsorption tube 23 is opened and is not blocked by the two arc-shaped limiting plates 219. Furthermore, through the two inverted L-shaped side plates 217 moving outward, the two inverted L-shaped side plate expansion and contraction rods 216 pull the two limiting plates 215 to slide outward on the top of the conveyor plate 21, releasing the limitation on the optical diffuser sheet falling on the top of the conveyor plate 21.

[0046] Simultaneously, the push-pull block connecting block 1115 moves rearward, causing the rotating side plate 213 to rotate, thereby pushing the semi-circular push plate push rod 210 and the semi-circular push plate 211 forward. The semi-circular push plate 211 pushes the bottom optical diffuser sheet forward. When the optical diffuser sheet moves above the adsorption tube 23, the adsorption tube 23 is activated, adsorbing and fixing the optical diffuser sheet. The electric push rod 1110 moves in the opposite direction, causing the two retracting side plates 121 to reset. The two arc-shaped limiting plate connecting rods 218 push the two arc-shaped limiting plates 219 to reset and, through the multiple inner rotating wheels 2110, adhere to the outer wall of the optical diffuser sheet adsorbed at the top of the adsorption tube 23, thus advancing the optical diffuser sheet. Further limiting is performed, and the two inverted L-shaped side plate expansion rods 216 push the two limiting plates 215 to reset inward, fitting against the outer walls of the newly dropped optical diffuser in the storage tube 26 for limiting. The semi-circular push plate push rod 210 and the semi-circular push plate 211 reset to prepare for the next pushing operation. At this time, the dust removal mechanism 3 starts to work to perform dust removal operation on the optical diffuser at the top of the adsorption tube 23. The rotation control component 2112 is started. After the rotation control component 2112 is started, it drives the adsorption tube 23 to rotate. The rotation of the adsorption tube 23 drives the optical diffuser fixed at its top to rotate at a uniform speed, so that the dust removal mechanism 3 can perform comprehensive dust removal on all parts of the optical diffuser.

[0047] This process can be repeated to achieve automated and continuous dust removal operation of the optical diffuser. During the dust removal process, as the optical diffuser rotates at a constant speed, the dust removal nozzle of the dust removal mechanism 3 continuously sprays high-pressure airflow onto the surface of the optical diffuser, blowing off the dust and impurities on the surface.

[0048] like Figure 9-10 As shown, the dust removal mechanism 3 includes a clean gas storage tank 31. Storage tank connecting plates 32 are fixedly connected to the top of both the left and right sides of the outer wall of the clean gas storage tank 31. L-shaped vertical support side plates 33 are fixedly connected to the rear sides of the outer sides of the two storage tank connecting plates 32. The bottom of the inner sides of the two L-shaped vertical support side plates 33 are fixedly connected to the front sides of the outer sides of the two conveyor side plates 22. L-shaped connecting blocks 34 are fixedly connected to the middle of the inner sides of the two L-shaped vertical support side plates 33. A suction pipe 35 is fixedly connected to the inner side of the two L-shaped connecting blocks 34. A suction pipe ventilation pipe 36 is fixedly connected to the top of the outer wall of the suction pipe 35. The top of the suction pipe ventilation pipe 36 is fixedly connected to the bottom of the clean gas storage tank 31. A gas supply pipe 37 is fixedly connected to the rear side of the suction pipe 35. A piston 312 is slidably connected to the inner wall of the suction pipe 35. A columnar push-pull rod 313 is fixedly connected to the front side of 312. A columnar push-pull rod connecting plate 314 is fixedly connected to the front end of the columnar push-pull rod 313. L-shaped push-pull side plates 315 are fixedly connected to both the left and right sides of the columnar push-pull rod connecting plate 314. The rear sides of the inner sides of the two L-shaped push-pull side plates 315 are fixedly connected to the top of the left and right sides of the rectangular upright 212. The top of the inner sides of the two L-shaped upright support side plates 33 are fixedly connected to the convex plate side plates 38. The rear sides of the two convex plate side plates 38 are fixedly connected to the convex connecting plate 39. A robotic arm 310 is fixedly connected to the front side of the convex connecting plate 39. An air extraction nozzle 311 is fixedly connected to the bottom end of the robotic arm 310. The outer wall of the air extraction nozzle 311 is fixedly connected to the end of the air supply pipe 37 away from the air extraction pipe 35. The bottom of the air extraction nozzle 311 is aligned with the top of the adsorption pipe 23.

[0049] During the dust removal process of the optical diffuser, the semi-circular pusher plate 211 pushes the optical diffuser plate above the adsorption tube 23 and fixes it in place. Then, the rectangular upright rod 212 moves forward along with the semi-circular pusher plate pusher rod 210. At this time, the rectangular upright rod 212 drives the L-shaped push-pull side plate 315 forward, which in turn pushes the columnar push-pull rod connecting plate 314, causing the columnar push-pull rod 313 to push the piston 312 forward. The piston 312 slides forward within the suction pipe 35, creating a negative pressure within the suction pipe 35, which draws air out of the clean gas storage tank 31 through the suction pipe ventilation pipe 36.

[0050] At the same time, the high-pressure airflow in the air supply pipe 37 is driven and the airflow is ejected at high speed from the suction nozzle 311. Since the bottom of the suction nozzle 311 is aligned with the top of the adsorption tube 23, the ejected high-pressure airflow will directly act on the surface of the optical diffuser adsorbed on the top of the adsorption tube 23. The rotating control component 2112 drives the adsorption tube 23 and the optical diffuser to rotate at a uniform speed, so that the high-pressure airflow can act evenly on all parts of the optical diffuser, effectively blowing off the dust and impurities on the surface.

[0051] The blown-off dust and impurities are carried by the airflow. Some of them are sucked into the air supply pipe 37 through the suction nozzle 311, then through the suction pipe 35, and finally collected in the clean gas storage tank 31 for purification and discharge. The robotic arm 310 can make fine adjustments to the position and angle of the suction nozzle 311 according to the actual detection needs to ensure that the high-pressure airflow can accurately cover the entire surface of the optical diffuser and achieve better dust removal effect. When the electric push rod 1110 moves in the reverse direction to reset the semi-circular push plate push rod 210 and the semi-circular push plate 211, the rectangular upright rod 212 also moves backward, driving the piston 312 to slide in the reverse direction in the suction pipe 35, preparing for the next dust removal operation. The whole process is closely coordinated, realizing efficient and comprehensive automated dust removal operation before the optical diffuser is detected.

[0052] After the dust is removed, the laser measuring instrument 4 begins to inspect the optical diffuser. The laser beam emitted by the laser measuring instrument 4 is precisely projected onto the surface of the optical diffuser after dust removal. Its internal high-precision sensor quickly captures the signal reflected back by the laser. By analyzing and processing the reflected signal, various optical parameters of the optical diffuser, such as transmittance and haze, can be accurately measured. The measured data is transmitted to the control terminal in real time. The control terminal uses professional algorithms to analyze and compare the data to determine whether the optical diffuser meets the quality standards. If the test results show that the optical diffuser has defects or does not meet the specified parameters, the system will immediately issue an alarm and provide specific problem information to the operator for timely handling. The entire inspection process is efficient and accurate. By using advanced automation technology and high-precision measuring equipment, the inspection efficiency and quality of the optical diffuser are greatly improved, providing a reliable guarantee for subsequent production and application.

[0053] In addition, the present invention also relates to an optical diffuser testing device and a testing method thereof, comprising the following steps:

[0054] Step 1: Place a set of optical diffusers in the storage tube 26, so that the bottom optical diffuser falls to the top of the conveyor plate 21 and fits against the front side of the semi-circular push plate 211.

[0055] Step 2: Start the electric push rod 1110, push the push-pull block connecting block 1115 to move to the rear, drive the push-pull rod 1113 and the triangular abutment plate 1114 to move backward, so that the two expansion blocks 125 slide to both sides along the guide side plate 1112, drive the rotating rod 124 and the arc-shaped rotating rod 123 to rotate, so that the expansion side plate 121 slides to both sides on the columnar cross bar 115, compressing the spring 127;

[0056] Step 3: The two retractable side plates 121 move outward, causing the two inverted L-shaped side plate retractable rods 216 to move outward, pushing the two inverted L-shaped side plates 217 to move outward. Through the two inverted L-shaped side plates 217, the two arc-shaped limiting plate connecting rods 218 pull the two arc-shaped limiting plates 219 outward, causing the adsorption tube 23 to open. At the same time, the two inverted L-shaped side plate retractable rods 216 pull the two limiting plates 215 to slide outward on the top of the conveyor plate 21, releasing the restriction on the optical diffuser sheet falling on the top of the conveyor plate 21.

[0057] Step 4: The push-pull block connecting block 1115 moves backward, causing the rotating side plate 213 to rotate, pushing the semi-circular push plate push rod 210 and the semi-circular push plate 211 to move forward. The semi-circular push plate 211 pushes the bottom optical diffuser sheet forward to above the adsorption tube 23.

[0058] Step 5: The adsorption tube 23 is activated to adsorb and fix the optical diffuser. The electric push rod 1110 moves in the opposite direction to reset the two expansion and retraction side plates 121. The two arc-shaped limiting plate connecting rods 218 push the two arc-shaped limiting plates 219 to reset and attach them to the outer wall of the optical diffuser adsorbed at the top of the adsorption tube 23 through the multiple inner rotating wheels 2110, further limiting the lens. The two inverted L-shaped expansion and retraction rods 216 push the two limiting plates 215 to reset inward and attach them to the outer walls of the newly dropped optical diffuser in the storage tube 26 for limiting. The semi-circular push plate push rod 210 and the semi-circular push plate 211 reset to prepare for the next pushing operation.

[0059] Step Six: The semi-circular pusher rod 210 pushes the semi-circular pusher plate 211 to push the optical diffuser to the top of the adsorption tube 23, while simultaneously moving the rectangular upright rod 212 forward. The rectangular upright rod 212 moves the L-shaped push-pull side plate 315 forward. The L-shaped push-pull side plate 315 moves the columnar push-pull rod connecting plate 314 forward. The columnar push-pull rod connecting plate 314 moves the columnar push-pull rod 313 forward. The columnar push-pull rod 313 moves the piston 312 forward within the suction pipe 35, drawing the gas in the clean gas storage tank 31 into the suction pipe 35 through the suction pipe ventilation pipe 36.

[0060] Step 7: The semi-circular push plate and push rod 210 and the semi-circular push plate 211 are reset, causing the rectangular upright rod 212 to move backward. The rectangular upright rod 212 drives the L-shaped push-pull side plate 315 to move backward. The L-shaped push-pull side plate 315 drives the columnar push-pull rod connecting plate 314 to move backward. The columnar push-pull rod connecting plate 314 drives the columnar push-pull rod 313 to move backward. The columnar push-pull rod 313 drives the piston 312 to slide backward in the suction pipe 35, pushing the gas already drawn into the suction pipe 35 to the suction nozzle 311 through the gas delivery pipe 37. The clean gas is controlled by the robotic arm 310 to be evenly sprayed from the suction nozzle 311 onto the optical diffuser plate located at the top of the adsorption tube 23.

[0061] Step 8: Start the rotation control component 2112, which drives the adsorption tube 23 to rotate, thereby driving the optical diffuser fixed on its top to rotate at a uniform speed, so that the dust removal mechanism 3 can spray clean gas more evenly onto the entire surface of the optical diffuser. At this time, the laser measuring instrument 4 begins to detect the optical diffuser. The laser beam emitted by the laser measuring instrument 4 is accurately projected onto the surface of the optical diffuser after dust removal.

[0062] Step 9: After one set of optical diffusers is tested, the device automatically performs the placement, positioning, adsorption, and dust removal testing operations for the next set of optical diffusers.

[0063] Working principle of this invention: Before laser detection, a set of optical diffusers is placed in the storage tube 26. At this time, the bottom optical diffuser falls to the top of the conveyor plate 21 and is in contact with the front side of the semi-circular push plate 211. Before detection, the electric push rod 1110 is activated. The electric push rod 1110 pushes the push-pull block connecting block 1115 to move backward, thereby driving the push-pull rod 1113 and the triangular abutment plate 1114 to move backward. Since the pulleys 126 inside the two expansion blocks 125 are in contact with the two sides of the triangular abutment plate 1114, and the triangular abutment plate 1114 is designed to increase in size from front to back, the backward movement of the triangular abutment plate 1114 abuts the two expansion blocks 125 and moves them along the guide side plate 11. 12 slides to both sides, thereby causing the rotating rod 124 and the arc-shaped rotating rod 123 to rotate, causing the expansion and contraction side plate 121 to slide to both sides on the columnar crossbar 115. The spring 127 is compressed, and the two expansion and contraction side plates 121 move outward, thereby causing the two inverted L-shaped side plate expansion and contraction rods 216 to move outward, pushing the two inverted L-shaped side plates 217 to move outward. Then, through the two inverted L-shaped side plates 217, the two arc-shaped limiting plate connecting rods 218 pull the two arc-shaped limiting plates 219 to move outward, so that the suction tube 23 is opened and is not blocked by the two arc-shaped limiting plates 219. Furthermore, through the two inverted L-shaped side plates 217 moving outward, the two inverted L-shaped side plate expansion and contraction rods 216 pull the two limiting plates 215 to move outward on the top of the conveyor plate 21. The sliding release releases the limiting position on the optical diffuser sheet at the top of the conveyor plate 21. Simultaneously, the push-pull block connecting block 1115 moves rearward, causing the rotating side plate 213 to rotate, thereby pushing the semi-circular pusher rod 210 and the semi-circular pusher plate 211 forward. The semi-circular pusher plate 211 pushes the bottom optical diffuser sheet forward. When the optical diffuser sheet moves above the adsorption tube 23, the adsorption tube 23 activates, adsorbing and fixing the optical diffuser sheet. The electric pusher rod 1110 moves in the reverse direction, causing the two retracting side plates 121 to reset. The two arc-shaped limiting plate connecting rods 218 push the two arc-shaped limiting plates 219 to reset and, through multiple inner rotating wheels 2110, adhere to the outer wall of the optical diffuser sheet adsorbed at the top of the adsorption tube 23, further processing the optical diffuser sheet. The two inverted L-shaped side plate expansion rods 216 push the two limiting plates 215 to reset inward, fitting against the outer walls of the newly fallen optical diffuser in the storage tube 26 for limiting. The semi-circular push plate push rod 210 and semi-circular push plate 211 reset to prepare for the next pushing operation. At this time, the dust removal mechanism 3 starts to work to remove dust from the optical diffuser at the top of the adsorption tube 23. The rotation control component 2112 is started, which drives the adsorption tube 23 to rotate, thereby driving the optical diffuser fixed at its top to rotate at a uniform speed. At the same time, the high-pressure airflow in the air supply pipe 37 is driven, and the airflow is ejected at high speed from the suction nozzle 311. Since the bottom of the suction nozzle 311 is aligned with the top of the adsorption tube 23,The high-pressure airflow directly acts on the surface of the optical diffuser adsorbed at the top of the adsorption tube 23. Rotating the control unit 2112 causes the adsorption tube 23 and the optical diffuser to rotate at a uniform speed, ensuring the high-pressure airflow acts evenly on all parts of the optical diffuser, effectively blowing off surface dust and impurities. The blown-off dust and impurities are carried by the airflow; some are sucked into the air delivery pipe 37 through the suction nozzle 311, then through the suction pipe 35, and finally collected in the clean gas storage tank 31 for purification and discharge. The robotic arm 310 can finely adjust the position and angle of the suction nozzle 311 according to actual testing needs to ensure the high-pressure airflow accurately covers the entire surface of the optical diffuser, achieving better dust removal. When the electric push rod 1110 moves in the reverse direction... When the semi-circular pusher rod 210 and semi-circular pusher plate 211 reset, the rectangular upright rod 212 also moves backward, causing the piston 312 to slide in the opposite direction within the suction pipe 35, preparing for the next dust removal operation. The entire process works in close coordination, achieving efficient and comprehensive automated dust removal before the optical diffuser is inspected. After the floating dust is removed, the laser measuring instrument 4 begins to inspect the optical diffuser. The laser beam emitted by the laser measuring instrument 4 is precisely projected onto the surface of the dust-removed optical diffuser. Its internal high-precision sensor quickly captures the signal reflected back by the laser. Through analysis and processing of the reflected signal, various optical parameters of the optical diffuser, such as transmittance and haze, can be accurately measured. The measured data is transmitted to the control terminal in real time.

[0064] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An optical diffuser testing device, comprising a base frame (1), characterized in that: The top of the base frame (1) is fixedly connected to a testing platform (2), and a dust removal mechanism (3) is provided on the front side of the top of the testing platform (2). A laser measuring instrument (4) is fixedly connected to the top of the rear side of the dust removal mechanism (3). The base frame (1) includes a support frame (11), and the left and right sides of the inner side of the support frame (11) are movably connected with expansion members (12). The testing station (2) includes a conveyor plate (21), and conveyor side plates (22) are fixedly connected to both the left and right sides of the conveyor plate (21). The front side of the middle part of the conveyor plate (21) is hollowed out, and an adsorption tube (23) is rotatably connected to the inner wall of the front side of the middle part of the conveyor plate (21). The dust removal mechanism (3) includes a clean gas storage tank (31). The top of the left and right sides of the outer wall of the clean gas storage tank (31) is fixedly connected to a storage tank connecting plate (32). The rear side of the outer side of the two storage tank connecting plates (32) is fixedly connected to an L-shaped vertical support side plate (33).

2. The optical diffuser testing device according to claim 1, characterized in that: The support frame (11) includes two sets of L-shaped side plates (111). The bottom of the outer side of the two sets of L-shaped side plates (111) is fixedly connected to an outer connecting side plate (112). The top of the two sets of L-shaped side plates (111) is fixedly connected to a top horizontal plate (113). The left and right sides of the top of the two top horizontal plates (113) are fixedly connected to U-shaped side plates (114). The top and bottom of the inner side of the two sets of U-shaped side plates (114) are fixedly connected to columnar crossbars (115). The top of the outer side of the two sets of U-shaped side plates (114) is fixedly connected to a support plate (116). The left and right sides of the inner side of the two top horizontal plates (113) are fixedly connected to concave side plates (117). The middle of the inner side of the two concave side plates (117) is fixedly connected to a hinge block (118).

3. The optical diffuser testing device according to claim 2, characterized in that: Guide side plates (1112) are fixedly connected to the inner sides of both sets of L-shaped side plates (111). Rear connecting horizontal plates (119) are fixedly connected to the bottom rear sides of the two rear L-shaped side plates (111). An electric push rod (1110) is fixedly connected to the middle of the bottom of the rear connecting horizontal plate (119). A concave sliding block (1111) is fixedly connected to the middle of the top of the rear connecting horizontal plate (119). A push-pull rod (1113) is slidably connected to the inner wall of 111. A triangular abutment plate (1114) is fixedly connected to the front side of the push-pull rod (1113). A push-pull block connecting block (1115) is fixedly connected to the rear side of the push-pull rod (1113). The triangular abutment plate (1114) is designed to be narrower from the front to the rear. The bottom front side of the push-pull block connecting block (1115) is fixedly connected to the rear end of the electric push rod (1110).

4. The optical diffuser testing device according to claim 1, characterized in that: Both of the aforementioned expansion and contraction components (12) include expansion and contraction side plates (121). T-shaped connecting plates (122) are fixedly connected to the top outer sides of both expansion and contraction side plates (121). The four sides of both expansion and contraction side plates (121) are slidably connected to the left and right sides of the outer walls of two sets of columnar crossbars (115). Springs (127) are fixedly connected to the front and rear sides of the outer sides of both T-shaped connecting plates (122). The outer ends of the left and right sets of springs (127) are fixedly connected to the inner sides of the two concave side plates (117). Arc-shaped rotating rods (123) are rotatably connected to the middle of the outer sides of both T-shaped connecting plates (122). The middle part of the outer wall of the arc-shaped rotating rod (123) is rotatably connected to the inner wall of the two hinge blocks (118). The bottom of the inner side of the two arc-shaped rotating rods (123) is rotatably connected to the rotating rod (124). The side of the two rotating rods (124) away from the arc-shaped rotating rod (123) is rotatably connected to the expansion block (125). The outer wall of the two expansion blocks (125) is slidably connected to the middle of the two guide side plates (1112). The inner side of the two expansion blocks (125) is rotatably connected to the pulley (126). The outer wall of the two pulleys (126) is in contact with the front side of the left and right sides of the triangular abutment plate (1114).

5. The optical diffuser testing device according to claim 1, characterized in that: The bottom sides of the conveyor plate (21) are fixedly connected to the top center of the two trays (116). Concave side guide blocks (24) are fixedly connected to the front sides of the top of the two conveyor side plates (22). Second concave side guide blocks (25) are fixedly connected to the front and rear sides of the top of the two conveyor side plates (22) behind the concave side guide blocks (24). Vertical L-shaped connecting side plates (2111) are fixedly connected to the rear sides of the top of the two conveyor side plates (22). A storage tube (26) is fixedly connected to the front side of the top inner side of the connecting side plate (2111). An inverted concave guide block connecting plate (27) is fixedly connected to the rear side of the inner side of the two conveyor side plates (22). An inverted concave guide block (28) is fixedly connected to the inner side of the two inverted concave guide block connecting plates (27). A hinged side plate (29) is fixedly connected to the left and right sides of the rear bottom of the conveyor plate (21). A rotation control component (2112) is fixedly connected to the bottom of the adsorption tube (23).

6. The optical diffuser testing device according to claim 5, characterized in that: The inner wall of the concave guide block (28) is slidably connected to a semi-circular push plate and push rod (210). A semi-circular push plate (211) is fixedly connected to the front side of the semi-circular push plate and push rod (210). A rectangular upright rod (212) is fixedly connected to the rear side of the top of the semi-circular push plate and push rod (210). Rotating side plates (213) are rotatably connected to the rear sides of both sides of the semi-circular push plate and push rod (210). The outer middle parts of the two rotating side plates (213) are rotatably connected to the inner sides of the two hinged side plates (29). The bottom of the inner sides of the two rotating side plates (213) are rotatably connected to the left and right sides of the push-pull block connecting block (1115). The inner side of the guide block (24) is slidably connected to an arc-shaped limiting plate connecting rod (218). The inner side of the two arc-shaped limiting plate connecting rods (218) is fixedly connected to an arc-shaped limiting plate (219). The inner sides of the two arc-shaped limiting plates (219) are rotatably connected to multiple wheels (2110). The outer sides of the two arc-shaped limiting plate connecting rods (218) are fixedly connected to an inverted L-shaped side plate (217). The bottom of the inner rear side of the two inverted L-shaped side plates (217) is fixedly connected to an inverted L-shaped side plate expansion rod (216). The inner sides of the two inverted L-shaped side plate expansion rods (216) are fixedly connected to the outer sides of the two expansion side plates (121).

7. The optical diffuser testing device according to claim 5, characterized in that: The inner sides of the two sets of second concave side guide blocks (25) are slidably connected with slide rods (214), and the inner sides of the two sets of slide rods (214) are fixedly connected with limit plates (215). The bottoms of the two limit plates (215) are slidably connected to the left and right sides of the top rear side of the conveyor plate (21), and the outer sides of the two slide rods (214) on the front side are fixedly connected to the middle of the inner rear side of the two inverted L-shaped side plates (217).

8. The optical diffuser testing device according to claim 1, characterized in that: The bottom of the inner side of each of the two L-shaped vertical support side plates (33) is fixedly connected to the front side of the outer side of each of the two conveyor side plates (22). An L-shaped connecting block (34) is fixedly connected to the middle of the inner side of each of the two L-shaped vertical support side plates (33). An exhaust pipe (35) is fixedly connected to the inner side of each of the two L-shaped connecting blocks (34). An exhaust pipe ventilation pipe (36) is fixedly connected to the top of the outer wall of the exhaust pipe (35). The top of the exhaust pipe ventilation pipe (36) is fixedly connected to the bottom of the clean gas storage tank (31). An air supply pipe (37) is fixedly connected to the rear side of the pipe (35). A piston (312) is slidably connected to the inner wall of the air extraction pipe (35). A columnar push-pull rod (313) is fixedly connected to the front side of the piston (312). A columnar push-pull rod connecting plate (314) is fixedly connected to the front end of the columnar push-pull rod (313). L-shaped push-pull side plates (315) are fixedly connected to both the left and right sides of the columnar push-pull rod connecting plate (314). The rear sides of the inner sides of the two L-shaped push-pull side plates (315) are fixedly connected to the top of the left and right sides of the rectangular upright (212).

9. The optical diffuser testing device according to claim 8, characterized in that: The top of the inner side of each of the two L-shaped support side plates (33) is fixedly connected to a convex plate side plate (38), and the rear side of each of the two convex plate side plates (38) is fixedly connected to a convex connecting plate (39). The front side of the convex connecting plate (39) is fixedly connected to a robotic arm (310), and the bottom end of the robotic arm (310) is fixedly connected to a suction nozzle (311). The outer wall of the suction nozzle (311) is fixedly connected to the end of the air supply pipe (37) away from the suction pipe (35), and the bottom of the suction nozzle (311) is aligned with the top of the adsorption pipe (23).

10. An optical diffuser testing device and a testing method thereof, wherein the optical diffuser testing device according to any one of claims 1-9 is characterized in that: Includes the following steps: Step 1: Place a set of optical diffusers in the storage tube (26) so that the bottom optical diffuser falls to the top of the conveyor plate (21) and fits against the front side of the semi-circular push plate (211); Step 2: Start the electric push rod (1110), push the push-pull block connecting block (1115) to move backward, drive the push-pull rod (1113) and the triangular abutment plate (1114) to move backward, so that the two expansion blocks (125) slide to both sides along the guide side plate (1112), drive the rotating rod (124) and the arc-shaped rotating rod (123) to rotate, so that the expansion side plate (121) slides to both sides on the columnar cross bar (115), compressing the spring (127). Step 3: The two expansion and retraction side plates (121) move outward, causing the two inverted L-shaped expansion and retraction rods (216) to move outward, pushing the two inverted L-shaped side plates (217) to move outward. Through the two inverted L-shaped side plates (217), the two arc-shaped limiting plate connecting rods (218) pull the two arc-shaped limiting plates (219) to move outward, so that the adsorption tube (23) is opened. At the same time, the two inverted L-shaped expansion and retraction rods (216) pull the two limiting plates (215) to slide outward on the top of the conveyor plate (21), releasing the limitation on the optical diffuser sheet falling on the top of the conveyor plate (21). Step 4: The push-pull block connecting block (1115) moves backward, causing the rotating side plate (213) to rotate, pushing the semi-circular push plate push rod (210) and the semi-circular push plate (211) to move forward. The semi-circular push plate (211) pushes the bottom optical diffuser sheet forward to the top of the adsorption tube (23). Step 5: The adsorption tube (23) is activated to adsorb and fix the optical diffuser. The electric push rod (1110) moves in the opposite direction to reset the two expansion and retraction side plates (121). The two arc-shaped limiting plate connecting rods (218) push the two arc-shaped limiting plates (219) to reset and attach to the outer wall of the optical diffuser adsorbed at the top of the adsorption tube (23) through multiple inner rotating wheels (2110) to further limit the lens. The two inverted L-shaped expansion and retraction rods (216) push the two limiting plates (215) to reset inward and attach to the outer walls of the newly dropped optical diffuser in the storage tube (26) for limiting. The semi-circular push plate push rod (210) and the semi-circular push plate (211) are reset to prepare for the next pushing operation. Step 6: The semi-circular pusher rod (210) pushes the semi-circular pusher plate (211) to push the optical diffuser to the top of the adsorption tube (23) and at the same time drives the rectangular upright rod (212) to move forward. The rectangular upright rod (212) drives the L-shaped push-pull side plate (315) to move forward. The L-shaped push-pull side plate (315) drives the columnar push-pull rod connecting plate (314) to move forward. The columnar push-pull rod connecting plate (314) drives the columnar push-pull rod (313) to move forward. The columnar push-pull rod (313) drives the piston (312) to slide forward in the suction pipe (35) and draw the gas in the clean gas storage tank (31) into the suction pipe (35) through the suction pipe ventilation pipe (36). Step 7: The semi-circular push plate push rod (210) and the semi-circular push plate (211) are reset to make the rectangular upright rod (212) move backward. The rectangular upright rod (212) drives the L-shaped push-pull side plate (315) to move backward. The L-shaped push-pull side plate (315) drives the columnar push-pull rod connecting plate (314) to move backward. The columnar push-pull rod connecting plate (314) drives the columnar push-pull rod (313) to move backward. The columnar push-pull rod (313) drives the piston (312) to slide backward in the suction pipe (35). The gas that has been drawn into the suction pipe (35) is pushed to the suction nozzle (311) through the gas delivery pipe (37). The clean gas is controlled by the robotic arm (310) to be evenly sprayed from the suction nozzle (311) onto the optical diffuser plate located at the top of the adsorption tube (23). Step 8: Start the rotation control component (2112), which drives the adsorption tube (23) to rotate, thereby driving the optical diffuser fixed on its top to rotate at a uniform speed, so that the dust removal mechanism (3) can spray the clean gas more evenly onto the entire surface of the optical diffuser. At this time, the laser measuring instrument (4) begins to detect the optical diffuser. The laser beam emitted by the laser measuring instrument (4) is accurately projected onto the surface of the optical diffuser after dust removal. Step 9: After one set of optical diffusers is sprayed, the device automatically performs the placement, positioning, adsorption, and dust removal detection operations for the next set of optical diffusers.

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