CN220356964U

CN220356964U - VR polaroid moire detection device

Info

Publication number: CN220356964U
Application number: CN202321371792.4U
Authority: CN
Inventors: 李洁; 陈恒; 胡志雄; 刘金华; 唐万林
Original assignee: Shenzhen Sunnypol Optoelectronics Co ltd
Current assignee: Shenzhen Sunnypol Optoelectronics Co ltd
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2024-01-16
Anticipated expiration: 2033-05-31

Abstract

The utility model discloses a detection device for a VR polaroid moire, which comprises a workbench, a projector, a liftable base, a jig and a curtain, wherein the workbench is horizontally arranged, the projector is placed on the workbench, the liftable base can ascend and descend relative to the workbench, and the jig and the curtain can stably clamp the VR polaroid to be detected; the fixture and the curtain are arranged on the liftable base, the fixture is arranged between the curtain and the projector, and the fixture and the curtain are lifted along with the liftable base to adjust the height; the fixture and the curtain can be fixed at different positions on the liftable base, and the distance among the projector, the fixture and the curtain is adjusted. The utility model can effectively detect the moire defect of the VR polaroid, reduce the omission ratio, ensure that the VR products delivered to the client are qualified products, and improve the customer satisfaction.

Description

VR polaroid moire detection device

Technical Field

The utility model relates to the technical field of optical films, in particular to a detection device for a polaroid.

Background

The polarizer has a wide application range, and is classified into a polarizer for a Liquid Crystal Display (LCD), a polarizer for an Organic Light Emitting Diode (OLED), a polarizer for glasses, and the like according to the application, and the polarizer for a liquid crystal display has TN-LCD series, STN-LCD series, TFT-LCD series, and the like. The polarizer for glasses is a division of the polarizer for glasses for viewing three-dimensional movies and for drivers. The LCD, OLED and other industries are the main application fields of polaroids, and the non-main application fields comprise polarized photography, infrared polaroids, ultraviolet polaroids, polaroid photoelastic effect test and the like.

Currently, the VR (Virtual Reality) industry in China is gradually increasing in importance, and as one of functions that most affect user experience, "display" is a place where the arms must contend. The polarizer applied in VR display usually has different levels of moire, which affects the vision of users, and the raw materials cannot be easily improved, so it is particularly important to find a device and a method for detecting the moire of the VR polarizer.

The current method for detecting the moire patterns of the VR polaroid is to use a reflection or transmission method, and human eyes directly observe and detect the moire patterns of the VR polaroid, wherein the method has the defects that:

1. the wavy streaks can not be detected effectively, and only the streaks with larger deformation can be detected;

2. the existing method test may have missed test; the product is provided with a protective film and a release film, and is detected by a transmission method, and the appearance of a piece to be detected is destroyed by tearing the film;

3. the return leak detection rate is high, and complaints after shipment to customers frequently affect the reputation of companies.

Disclosure of Invention

The utility model aims to solve the technical problems that: various defects of the existing VR polaroid moire detection method are overcome, and the VR polaroid moire detection device is provided, so that the moire defect of the VR polaroid can be effectively detected, the omission ratio is reduced, the VR products which are delivered to the client side are ensured to be qualified, and the customer satisfaction is improved.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a detection device of VR polaroid moire, includes workstation, the projecting apparatus of placing on the workstation that the level set up, can rise and the liftable base of decline relative to the workstation, can stabilize fixture and curtain of the VR polaroid that the centre gripping is waited to detect; the fixture and the curtain are arranged on the liftable base, the fixture is arranged between the curtain and the projector, and the fixture and the curtain are lifted along with the liftable base to adjust the height; the fixture and the curtain can be fixed at different positions on the liftable base, and the distance among the projector, the fixture and the curtain is adjusted.

The technical scheme is further defined in that the liftable base comprises a plurality of sliding rails which are horizontally arranged above the workbench and can ascend and descend relative to the workbench; the jig and the curtain are arranged on a plurality of slide rails; the fixture and the curtain slide on a plurality of slide rails, and the distance among the projector, the fixture and the curtain is adjusted.

The above technical solution is further defined in that the curtain, the jig and the projector are arranged along a straight line.

The technical scheme is further defined in that the jig comprises a lifting bracket capable of manually adjusting the height of the jig.

The technical scheme is further limited in that the jig can rotate 360 degrees.

The technical scheme is further defined in that the workbench is provided with a plurality of through holes, the liftable base further comprises a plurality of support columns penetrating through the workbench, the top ends of the support columns are respectively fixed at the lower ends of the slide rails, the bottom ends of the support columns penetrate through the plurality of through holes of the workbench and then are connected with a power device or a manual device, and the power device or the manual device provides power to enable the support columns to move upwards or downwards synchronously, so that the slide rails can ascend or descend synchronously.

The technical scheme is further limited in that the number of the sliding rails is two, and the number of the supporting columns is two.

The technical scheme is further defined in that the workbench is provided with a plurality of guide holes, the liftable base further comprises a plurality of guide posts penetrating through the workbench, the top ends of the guide posts are fixed at the lower ends of the sliding rails, and the bottom ends of the guide posts penetrate through the guide holes in the workbench.

The technical scheme is further limited in that the number of the sliding rails is two, and the number of the guide posts is two.

The technical scheme is further defined in that the detection device for the wave patterns of the VR polaroid further comprises a computer, wherein the computer is placed on the workbench and is electrically connected with the projector.

Compared with the prior art, the utility model has the following beneficial effects:

1. the projector is used for detection, so that film tearing can be avoided, the damage detection quantity is reduced, and the detection cost is reduced;

2. the VR polaroid moire can be effectively detected, and can be classified into light stripe grades, medium A grade, medium B grade and heavy stripe grades, and shipment can be carried out according to the required grades;

3. for VR polaroids of different batches, the number of stripes of each grade can be detected and analyzed according to the method, so that the difference points of the raw materials are searched, and the raw materials can be easily searched in an improved direction;

4. the method and the device can effectively reduce the leakage of the defective products with the wavy patterns out of the client, improve the satisfaction of the client and improve the reputation of the company.

Drawings

For a further understanding of the nature and technical aspects of the present utility model, reference should be made to the following detailed description of the utility model and to the accompanying drawings, which are provided for purposes of reference only and are not intended to limit the utility model.

In the drawings of which there are shown,

FIG. 1 is a perspective view of a device for detecting moire patterns in a VR polarizer according to the present utility model.

Detailed Description

In order to further explain the technical means adopted by the present utility model and the effects thereof, the following detailed description is given with reference to the preferred embodiments of the present utility model and the accompanying drawings.

Referring to fig. 1, a device for detecting moire of a VR polarizer includes a workbench 1, a computer 2, a projector 3, a liftable base 4, a jig 5, and a curtain 6.

The computer 2 and projector 3 are placed on the table 1. The computer 2 is electrically connected with the projector 3, and the computer 2 can control the projector 3 to be turned on, turned off and other functions.

The workbench 1 is horizontally arranged, so that the computer 2 and the projector 3 can be stably placed.

Two through holes 12 and two guide holes 14 are formed in the workbench 1.

The liftable base 4 can be lifted and lowered relative to the table 1.

The liftable base 4 comprises two parallel and horizontally arranged slide rails 41 above the table 1, two support columns 43 penetrating the table 1 and two guide columns 45 penetrating the table 1.

The top ends of the two support columns 43 are respectively fixed at the lower ends of the two slide rails 41, and the bottom ends of the two support columns 43 pass through the two through holes 12 of the workbench 1 and are connected with a power device or a manual device (not shown), and the power device or the manual device provides power to enable the two support columns 43 to move upwards or downwards synchronously, so that the two slide rails 41 can ascend or descend synchronously relative to the workbench 1.

The top ends of the two guide posts 45 are fixed at the lower ends of the two slide rails 41, and the bottom ends of the two guide posts 45 pass through the guide holes 14 on the workbench 1. By the cooperation of the two guide posts 45 and the two guide holes 14, the two slide rails 41 can be ensured to be stable in the ascending and descending processes.

The jig 5 is slidably mounted on the two slide rails 41, and the jig 5 stably clamps the VR polarizer 100 to be detected. In order to meet the detection requirement, the jig 5 and the VR polarizer 100 can be rotated 360 degrees.

The jig 5 includes a lifting bracket 52 capable of manually adjusting the height of the jig 5.

The curtain 6 is slidably mounted on two slide rails 41, the jig 5 and the VR polarizer 100 are located between the curtain 6 and the projector 3, and light emitted from the projector 3 is projected onto the curtain 6 after passing through the VR polarizer 100. In order to ensure the detection effect, the curtain 6, the VR polarizer 100 and the projector 3 are arranged along a straight line, and since the VR polarizer 100 is fixed on the jig 5, the curtain 6, the jig 5 and the projector 3 are also arranged along a straight line.

According to the detection requirement, the jig 5 and the curtain 6 slide on the two slide rails 41, and one or both of the jig 5 and the curtain 6 slide according to the requirement so as to adjust the distance among the curtain 6, the VR polarizer 100 and the projector 3. The projector 3 is optimally spaced from the projected curtain 6 by 2.6-3m, and the VR polarizer 100 is optimally spaced from the curtain 6 by 1.2-1.5m.

The distance between the projector 3, the VR polarizer 100 and the curtain 6 can be conveniently selected to be the optimal viewing distance in the device according to different product types and different adverse phenomena.

The background color of the curtain 6 is yellow, and the brightness is 1700-2300LUX.

According to the detection requirement, the two slide rails 41 are synchronously lifted or synchronously lowered by operating the power device or the manual device, so that the heights of the jig 5 and the VR polarizer 100 are properly adjusted, and a good detection effect is ensured.

The method for detecting the wave patterns of the VR polaroid by using the detection device is briefly described as follows:

sensitivity of different color lights to the wave patterns of the VR polarizer 100 is tested, an optimal color number is selected, and an optimal detection distance is adjusted. The projector 3 for emitting yellow light is used as a light source, and obvious moire faults can be amplified to the curtain 6 by transmitting the VR polaroid 100, so that the moire faults with different degrees can be sorted out.

The distance between the projector 3 and the projected curtain 6 is 2.6-3m, the computer 2 is connected with the projector 3, a stripe test Excel table in the computer 2 is opened, the overall background color of the table is yellow, and the brightness of the curtain 6 is adjusted to 1700-2300LUX.

And (3) checking finished product granules: clamping a tested product VR polaroid 100 onto a jig 5, enabling light of a projector 3 to penetrate through the VR polaroid 100 and project the light onto a curtain 6, enabling a glue surface (bright surface) of the VR polaroid 100 to face the direction of the projector 3 vertically, rotating and tilting the product VR polaroid 100 45 degrees forwards and backwards in the visual inspection process, and visually inspecting the ripple condition of the product VR polaroid 100 projected onto the curtain 6; the VR polarizer 100 of the inspection product needs to be 1.2-1.5m away from the projection curtain, and the projection brightness of the inspection area is 1700-2300LUX. So that the effect of the projection can be clearly seen.

A4, product inspection: and clamping the VR polaroid 100 of the product to be tested on the jig 5, and rotating the VR polaroid 100 of the product by 90 degrees until two short sides are parallel up and down. Let projector 3 light permeate product VR polaroid 100 projection to curtain 6, product VR polaroid 100 gluey face perpendicular orientation projector 3 direction, the ripple situation of product of visual inspection projection on curtain 6.

In order to realize that defective products of the wave patterns of the VR polaroid 100 do not flow into the client, a projection method is adopted, and limit samples are compared, so that the VR polaroid 100 is classified into heavy, medium and light types, and shipment is carried out according to requirements.

The utility model has the following beneficial effects:

1. the projector 3 is used for detection, so that film tearing can be avoided, the damage detection quantity is reduced, and the detection cost is reduced;

2. the wave patterns of the VR polaroid 100 can be effectively detected, and can be classified into light, medium A, medium B and heavy stripe grades, and shipment can be carried out according to the required grades;

3. for VR polaroids 100 of different batches, the number of stripes of each grade can be detected and analyzed according to the method, so that the difference points of the raw materials can be searched, and the raw materials can be easily searched in an improved direction;

In the above, it is obvious to those skilled in the art that various other corresponding changes and modifications can be made according to the technical scheme and the technical idea of the present utility model, and all such changes and modifications are intended to fall within the scope of the appended claims.

Claims

1. The device for detecting the wave patterns of the VR polaroid is characterized by comprising a workbench (1) which is horizontally arranged, a projector (3) which is arranged on the workbench (1), a liftable base (4) which can ascend and descend relative to the workbench (1), a jig (5) which can stably clamp the VR polaroid (100) to be detected and a curtain (6);

the fixture (5) and the curtain (6) are arranged on the liftable base (4), the fixture (5) is arranged between the curtain (6) and the projector (3), and the fixture (5) and the curtain (6) are lifted along with the liftable base (4) to adjust the height;

the fixture (5) and the curtain (6) can be fixed at different positions on the liftable base (4), and the distance among the projector (3), the fixture (5) and the curtain (6) is adjusted.

2. The VR polarizer moire detection device of claim 1, wherein the liftable base (4) comprises a plurality of sliding rails (41) horizontally arranged above the workbench (1) and capable of ascending and descending relative to the workbench (1);

the jig (5) and the curtain (6) are arranged on a plurality of slide rails (41);

the jig (5) and the curtain (6) slide on a plurality of slide rails (41), and the distance among the projector (3), the jig (5) and the curtain (6) is adjusted.

3. The device for detecting the moire of the VR polarizer according to claim 1 or 2, wherein the curtain (6), the jig (5) and the projector (3) are arranged along a straight line.

4. The VR polarizer moire detection device according to claim 1 or 2, wherein the jig (5) comprises a lifting bracket (52) capable of manually adjusting the height of the jig (5).

5. The device for detecting the moire fringes of the VR polarizer according to claim 1 or 2, wherein the jig (5) can rotate 360 degrees.

6. The device for detecting the moire of the VR polarizer according to claim 2, wherein the workbench (1) is provided with a plurality of through holes (12), the liftable base (4) further comprises a plurality of support columns (43) penetrating through the workbench (1), the top ends of the plurality of support columns (43) are respectively fixed at the lower ends of the plurality of sliding rails (41), the bottom ends of the plurality of support columns (43) penetrate through the plurality of through holes (12) of the workbench (1) and then are connected with a power device or a manual device, and the power device or the manual device provides power to enable the plurality of support columns (43) to move upwards or downwards synchronously, so that the plurality of sliding rails (41) ascend or descend synchronously.

7. The device for detecting the moire fringes of the VR polarizer according to claim 6, wherein the number of the plurality of slide rails (41) is two, and the number of the plurality of support posts (43) is two.

8. The VR polarizer moire detection device of claim 2 or 6, wherein the workbench (1) is provided with a plurality of guide holes (14), the liftable base (4) further comprises a plurality of guide posts (45) penetrating through the workbench (1), the top ends of the plurality of guide posts (45) are fixed at the lower ends of the plurality of sliding rails (41), and the bottom ends of the plurality of guide posts (45) penetrate through the plurality of guide holes (14) on the workbench (1).

9. The device for detecting the moire of the VR polarizer according to claim 8, wherein the number of the plurality of sliding rails (41) is two, and the number of the plurality of guide posts (45) is two.

10. The device for detecting the moire fringes of the VR polarizer according to claim 1 or 2, wherein the device for detecting the moire fringes of the VR polarizer further comprises a computer (2), the computer (2) is placed on the workbench (1), and the computer (2) is electrically connected with the projector (3).