Optical performance testing device

Abstract

The invention discloses an optical performance testing device. The optical performance testing device comprises a pulley base, a support frame and an omnibearing moving part, the supporting frame comprises a first sliding rod, a wire box is arranged at the top of the first sliding rod, and a lifting wire and rollers are arranged in the wire box; the omni-directional moving part comprises a vertical sliding sleeve and a horizontal sliding sleeve, a first tray and a second tray are arranged at the two ends of the second sliding rod, and a color brightness meter is arranged on the upper portion of the second tray. According to the invention, the vertical sliding sleeve determines the test height in the vertical direction and the test angle in the horizontal direction, the horizontal sliding sleeve determines the relative distance, the trays at the two ends are additionally provided with different or same test assemblies, the lifting wire in the wire box assists in reducing the height adjustment difficulty, and each point position of a to-be-measured plane can be accurately measured at multiple angles; the pulley base can be conveniently moved and fixed, and the rotary knob is matched for fixation, so that the test lens can be effectively prevented from shaking, the influence of human factors on the test result is effectively reduced, the test process is simplified, and multi-point test, uniformity test and multi-angle test can be quickly carried out.

Description

Technical Field

[0001] The present invention relates to the technical field of product testing equipment, and in particular to an optical performance testing device. Background Art

[0002] The diffuser, optical film and composite plate in the display screen can enhance and homogenize the point light source and line light source by refraction, reflection and scattering of the incident light, which can effectively enhance the light emitting effect of the light emitting surface. In actual testing, the optical performance of the diffuser, optical film and composite plate is usually evaluated by the color coordinates, brightness and uniformity of the product after light emission.

[0003] The existing methods for testing the color coordinates and brightness of a module or display screen are divided into manual direct measurement or fixture clamping measurement: manual direct measurement requires the use of a handheld color analyzer, allowing the test lens to be vertically attached to the surface of the module, and completing the relevant test after being supported by the hand. The stability is poor, the relative position and angle between the analyzer and the target object cannot be accurately grasped, and there are problems such as excessive interference from human factors, resulting in obvious fluctuations in the test results; and the existing patent with publication number CN215065177U discloses a digital image source brightness test fixture, including a base plate and a clamping mechanism fixed on the base plate, a dial rotatably connected to the base plate, and a scale line indicating an angle is provided on the outer edge of the dial, the scale line includes a 0 scale line, and a reference line that can be aligned with the scale line is provided at a position close to the dial on the base plate. The utility model directly arranges the horizontal angle adjustment device at the bottom of the fixture, and directly achieves the purpose of adjusting the horizontal angle by aligning the brightness tester with the 0 scale line and rotating the dial. At the same time, the design of multiple mounting holes improves the versatility of the overall device, and a set of fixtures can meet the brightness test requirements of various types of image sources. The device takes into account both the horizontal angle and the pitch angle, but does not consider relative positions other than the angle. Also, due to the influence of the spatial layout, there is a certain gap between the brightness tester and the turntable at the bottom, so it is easy to cause errors when adjusting the angle. In addition, the brightness tester needs to be moved frequently for multi-angle testing, which makes the testing process long and cumbersome. Summary of the invention

[0004] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0005] The purpose of the present invention is to solve the shortcomings in the prior art and to propose an optical performance testing device.

[0006] In order to achieve the above object, the present invention adopts the following technical solution: an optical performance testing device, comprising:

[0007] Pulley base, support frame and all-round movable parts;

[0008] The support frame comprises a first sliding rod, a wire box is arranged on the top of the first sliding rod, and a lifting wire and a roller are arranged inside the wire box;

[0009] The omnidirectional movable member comprises a vertical sliding sleeve and a horizontal sliding sleeve which are vertically arranged, wherein the vertical sliding sleeve is sleeved on the outside of the first sliding rod, and the horizontal sliding sleeve is sleeved on the outside of the second sliding rod;

[0010] The first tray and the second tray are arranged at two ends of the second slide bar, and a color brightness meter is arranged on the upper part of the second tray.

[0011] As a further description of the above technical solution, the lifting line and the roller are arranged in a groove, and the roller is provided in multiple groups. The lifting line is led out downward through the roller and connected to the vertical sliding sleeve.

[0012] As a further description of the above technical solution, the first sliding rod is inserted into the center of the pulley base, and the first sliding rod and the second sliding rod are placed vertically.

[0013] As a further description of the above technical solution, threaded holes are provided on the outer sides of the vertical sliding sleeve and the horizontal sliding sleeve, and the threaded holes are used to adjust the fixed positions of the vertical sliding sleeve and the horizontal sliding sleeve.

[0014] As a further description of the above technical solution, a first knob is provided on the threaded hole of the vertical sleeve, and the first knob is used to adjust the fixed position of the vertical sleeve on the first slide rod. A second knob is provided on the threaded hole of the horizontal sleeve, and the second knob is used to adjust the fixed position of the horizontal sleeve on the second slide rod.

[0015] As a further description of the above technical solution, a scale plate surrounding the first slide rod is arranged on the top of the vertical sliding sleeve, and scale lines are equidistantly arranged on the scale plate, and the range of the scale lines is 0-360°.

[0016] As a further description of the above technical solution, a threading hole is opened on one side of the scale plate, and the lifting wire is connected to the vertical sliding sleeve through the threading hole.

[0017] As a further description of the above technical solution, a plurality of groups of connecting members are arranged around the pulley base, and the pulley base is detachably connected to the pulley through the ends of the connecting members.

[0018] As a further description of the above technical solution, a brake block is arranged on the pulley, and a baffle is arranged on one side of the pulley.

[0019] As a further description of the above technical solution, a third knob is arranged at the bottom center of the second tray, and a fixing nut is symmetrically arranged on the outside of the third knob. The color luminance meter is detachably arranged on the second tray through the third knob and the fixing nut, and a lens is arranged on one side of the color luminance meter.

[0020] The present invention has the following beneficial effects:

[0021] According to the present invention, the vertical sliding sleeve slides up and down on the first sliding rod to determine the test height in the vertical direction, the vertical sliding sleeve rotates left and right to change the test angle in the horizontal direction, the second sliding rod slides back and forth on the horizontal sliding sleeve to determine the relative distance between the color luminance meter and the plane to be tested, and different or the same test instruments with lenses are installed on the trays at both ends to perform tests such as spectrum measurement and separate measurement of brightness coordinates; the lifting line in the wire box is connected with the vertical sliding sleeve through a pulley to assist in reducing the difficulty of height adjustment, and can accurately measure various points on the plane to be tested from multiple angles; at the same time, it can be portable, moved and fixed through the pulley base, and the lateral test points can be adjusted. Fixing with a knob can effectively avoid shaking of the test lens, effectively reduce the influence of human factors on the test results, simplify the test process, and quickly and accurately locate any point on the plane to be tested, so as to perform multi-point testing, uniformity testing and multi-angle testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the optical performance testing device in the present invention;

[0023] Figure 2 for Figure 1 Top view at AA in the middle;

[0024] Figure 3 for Figure 1 A schematic diagram of the structure from another perspective at the middle BB;

[0025] Figure 4 for Figure 1 Side view at mid-CC.

[0026] Legend:

[0027] 100, pulley base; 110, pulley; 120, brake block; 130, connector; 140, baffle; 200, support frame; 201, groove; 202, roller; 210, first slide bar; 220, wire box; 230, lifting line; 300, all-round movable part; 310, vertical slide sleeve; 311, scale plate; 312, scale line; 313, threading hole; 320, first knob; 330, horizontal slide sleeve; 340, second knob; 350, second slide bar; 360, first tray; 370, color brightness meter; 371, lens; 380, second tray; 381, fixing nut; 390, third knob. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Please refer to the following examples for details:

[0030] Reference Figure 1-Figure 4 The present invention provides an embodiment of an optical performance testing device, the specific structure of which includes: a pulley base 100, a support frame 200 and an omnidirectional movable part 300.

[0031] Please continue reading Figure 1-Figure 4 In this embodiment, a plurality of groups of connectors 130 are provided around the pulley base 100, and the pulley base 100 is detachably connected to the pulley 110 through the ends of the connectors 130. Specifically, the pulley 110 is provided with 3 or more groups, and can rotate 360°; a brake block 120 is also provided on the top of the pulley 110, and the pulley 110 can be fixed by the brake block 120, thereby maintaining the stability of the entire test device. When in use, the entire test device is moved by the pulley 110 connected to the bottom of the pulley base 100, and fixed by the limit block after moving to the position to be tested, which can effectively prevent the test lens 371 from shaking, effectively reduce the influence of human factors on the test results, simplify the test process, and quickly and accurately locate any point on the plane to be tested, so as to perform multi-point testing, uniformity testing and multi-angle testing.

[0032] Furthermore, a baffle 140 is provided on one side of the pulley 110 . The baffle 140 is L-shaped and is used to maintain the stability of the entire device and its relative position to the plane to be measured.

[0033] Please continue reading Figure 1-Figure 4In this embodiment, the support frame 200 includes a first slide bar 210 and a wire box 220. The first slide bar 210 is inserted in the center of the pulley base 100 and is perpendicular to the pulley base 100; the wire box 220 is arranged on the top of the first slide bar 210, and the lifting wire 230 and the roller 202 are arranged inside the wire box 220.

[0034] Furthermore, the lifting line 230 and the roller 202 are arranged in the elliptical groove 201 of the wire box 220, and the roller 202 is flush with the top of the wire box 220; and the roller 202 is provided in multiple groups, and the lifting line 230 is led downward through the roller 202 to connect with the vertical sliding sleeve 310, and then the height of the vertical sliding sleeve 310 is assisted by the lifting line 230, which reduces the difficulty of height adjustment, and can accurately measure various points on the plane to be measured from multiple angles.

[0035] Please continue reading Figure 1-Figure 4 In this embodiment, the omnidirectional movable part 300 includes a vertical sleeve 310 and a horizontal sleeve 330 which are vertically arranged. The vertical sleeve 310 and the horizontal sleeve 330 are arranged in the middle of the first slide bar 210, the vertical sleeve 310 and the horizontal sleeve 330 are connected to each other, and the vertical sleeve 310 is sleeved on the outside of the first slide bar 210, and the horizontal sleeve 330 is sleeved on the outside of the second slide bar 350. Specifically, the first slide bar 210 and the second slide bar 350 are placed vertically. When in use, the vertical sleeve 310 slides up and down on the first slide bar 210 to determine the test height in the vertical direction, and the vertical sleeve 310 can rotate left and right to change the test angle in the horizontal direction, while the second slide bar 350 slides back and forth on the horizontal sleeve 330 to determine the relative distance between the color brightness meter 370 and the plane to be measured.

[0036] Furthermore, threaded holes penetrating through the walls of the vertical sleeve 310 and the horizontal sleeve 330 are provided on the outside of the vertical sleeve 310 and the horizontal sleeve 330, and the threaded holes are used to adjust the fixed positions of the vertical sleeve 310 and the horizontal sleeve 330. Specifically, a first knob 320 is provided on the threaded hole of the vertical sleeve 310, which is used to adjust the fixed position of the vertical sleeve 310 on the first slide bar 210; and a second knob 340 is provided on the threaded hole of the horizontal sleeve 330, which is used to adjust the fixed position of the horizontal sleeve 330 on the second slide bar 350.

[0037] Furthermore, a scale plate 311 surrounding the first slide bar 210 is arranged on the top of the vertical sliding sleeve 310, and scale lines 312 are equidistantly arranged on the scale plate 311. Specifically, the scale lines 312 range from 0 to 360 degrees.

[0038] Furthermore, a threading hole 313 is provided on the side ear on one side of the dial 311, and the lifting line 230 is connected to the vertical sliding sleeve 310 through the threading hole 313, and there are corresponding engraved lines on the first sliding rod 210 that are perpendicular to the dial 311; and relatively distributed screw holes are also provided next to the threading hole 313, which are fastened with fixing nuts 381 respectively.

[0039] Furthermore, a first tray 360 and a second tray 380 are respectively disposed at both ends of the second slide bar 350, and a color luminance meter 370 is disposed on the upper portion of the second tray 380. The trays at both ends are equipped with different or the same test instruments with lenses, so that various optical tests such as spectrum measurement and separate measurement of luminance coordinates can be performed.

[0040] Specifically, a third knob 390 is provided at the bottom center of the second tray 380, and a fixing nut 381 is symmetrically provided on the outer side of the third knob 390. The color brightness meter 370 is detachably provided on the second tray 380 through the third knob 390 and the fixing nut 381, and a lens 371 is provided on one side of the color brightness meter 370.

[0041] Test steps:

[0042] (1) Optical performance test of the center point of the diffuser plate, optical film and composite plate on the backlight module:

[0043] Install the diffusion plate / optical film / composite plate to be tested in the backlight module, then fix the backlight module vertically at the position to be tested, move the test device to the vicinity of the position to be tested via the pulley base 100, and keep the baffle 140 parallel to the plane to be tested. Open the first knob 320 to cooperate with the lifting line 230 to move the vertical sliding sleeve 310 up and down on the first sliding rod 210 to adjust the height, open the second knob 340 to move the horizontal sliding sleeve 330 forward and backward on the second sliding rod 350 to adjust the distance between the lens 371 of the color brightness meter 370 and the point to be tested, and then slide the test device left and right to make the center point to be tested within the range of the lens 371. When the lens 371 and the center point to be measured are at the same horizontal height, the vertical sleeve 310 is rotated so that the scale line for determining the test angle on the first slide bar 210 intersects vertically with the 90° scale line on the top dial 311 of the vertical sleeve 310, the first knob 320 is tightened to fix the height and angle, the second slide bar 350 is slid back and forth to make the lens 371 fit the center point to be measured, the second knob 340 is tightened, the brake block 120 is lowered so that the pulley 110 stops sliding, the horizontal color brightness meter 370 is turned on for testing, and the coordinates and brightness of the center point and other information are recorded.

[0044] (2) Optical uniformity test of diffuser plate, optical film and composite plate on backlight module:

[0045] On the basis of (1), multiple points to be tested are evenly marked on the plane to be tested, including the center point and multiple quadrant points. The height and angle of the lens 371 are fixed by the first knob 320 and the vertical sleeve 310. The distance between the lens 371 and the point to be tested is fixed by the second knob 340 and the second slide bar 350. The point to be tested is brought within the range of the lens 371 by sliding the test device left and right, thereby testing the optical performance of a point. The brake block 120 is opened to slide the test device left and right, and the points to be tested in the same horizontal direction are continued to be tested. The first knob 320 is opened, and the vertical sleeve 310 is slid up and down in coordination with the lifting line 230, and the points to be tested in the same vertical direction are continued to be tested. In this process, the scale line on the first slide bar 210 for determining the test angle is kept perpendicular to the 90° scale line on the top scale plate 311 of the vertical sleeve 310, and the distance between the lens 371 and the point to be tested is kept unchanged.

[0046] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An optical performance testing device, characterized in that: include: A pulley base (100), a support frame (200) and an omnidirectional movable part (300); The support frame (200) comprises a first sliding rod (210), a wire box (220) is arranged on the top of the first sliding rod (210), and a lifting wire (230) and a roller (202) are arranged inside the wire box (220); The omnidirectional movable member (300) comprises a vertical sliding sleeve (310) and a horizontal sliding sleeve (330) which are vertically arranged, wherein the vertical sliding sleeve (310) is sleeved on the outside of the first sliding rod (210), and the horizontal sliding sleeve (330) is sleeved on the outside of the second sliding rod (350); A first tray (360) and a second tray (380) are arranged at both ends of the second sliding bar (350), and a color brightness meter (370) is arranged on the upper part of the second tray (380).

2. An optical performance testing device according to claim 1, characterized in that: The lifting line (230) and the roller (202) are arranged in the groove (201), and the roller (202) is provided in multiple groups. The lifting line (230) is led out downward through the roller (202) and connected to the vertical sliding sleeve (310).

3. An optical performance testing device according to claim 1, characterized in that: The first sliding rod (210) is inserted into the center of the pulley base (100), and the first sliding rod (210) and the second sliding rod (350) are placed vertically.

4. The optical performance testing device according to claim 1, characterized in that: Threaded holes are provided on the outer sides of the vertical sliding sleeve (310) and the horizontal sliding sleeve (330), and the threaded holes are used to adjust the fixed positions of the vertical sliding sleeve (310) and the horizontal sliding sleeve (330).

5. An optical performance testing device according to claim 4, characterized in that: A first knob (320) is arranged on the threaded hole of the vertical sliding sleeve (310), and the first knob (320) is used to adjust the fixed position of the vertical sliding sleeve (310) on the first sliding rod (210); a second knob (340) is arranged on the threaded hole of the horizontal sliding sleeve (330), and the second knob (340) is used to adjust the fixed position of the horizontal sliding sleeve (330) on the second sliding rod (350).

6. The optical performance testing device according to claim 1, characterized in that: A scale plate (311) surrounding the first slide rod (210) is arranged at the top of the vertical sliding sleeve (310), and scale lines (312) are arranged at equal intervals on the scale plate (311), and the range of the scale lines (312) is 0-360°.

7. An optical performance testing device according to claim 6, characterized in that: A threading hole (313) is provided on one side of the scale plate (311), and the lifting wire (230) is connected to the vertical sliding sleeve (310) through the threading hole (313).

8. An optical performance testing device according to claim 1, characterized in that: A plurality of groups of connecting members (130) are arranged around the pulley base (100), and the pulley base (100) is detachably connected to the pulley (110) via the ends of the connecting members (130).

9. An optical performance testing device according to claim 8, characterized in that: A brake block (120) is provided on the pulley (110), and a baffle (140) is provided on one side of the pulley (110).

10. The optical performance testing device according to claim 1, characterized in that: A third knob (390) is arranged at the center of the bottom of the second tray (380), and a fixing nut (381) is symmetrically arranged on the outer side of the third knob (390). The color luminance meter (370) is detachably arranged on the second tray (380) through the third knob (390) and the fixing nut (381), and a lens (371) is arranged on one side of the color luminance meter (370).

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