Screen protection film optical detection device

Abstract

The invention relates to an optical detection device for a screen protection film, and the device comprises a rotating disc which is provided with a plurality of bearing discs at intervals in the circumferential direction; the spectrum detection mechanism is arranged beside the rotating disc; and the haze detection mechanism is arranged beside the rotating disc. A to-be-detected screen protection film is sequentially moved to the position under the spectrum detection mechanism and the haze detection mechanism through the rotating disc to be detected, manual detection is not needed, the detection cost is reduced, and the detection efficiency can be improved; meanwhile, the light transmittance, the reflectivity and the color rendition degree of the screen protection film are detected through the spectrum detection mechanism, the light transmittance and the haze of the screen protection film are detected through the haze detection mechanism, the light transmittance is detected by comparing the spectrum detection mechanism with the haze detection mechanism, and the situation that the detection result is wrong due to instrument faults can be avoided; the stability of a detection result is ensured.

Description

Technical Field

[0001] The invention relates to a detection device, in particular to an optical detection device for a screen protective film. Background Art

[0002] A screen protector is a thin film used to cover the surface of the screen of an electronic device, designed to protect the screen from various possible damages and optimize the visual experience to a certain extent.

[0003] Optical properties such as transmittance and haze directly affect the display effect of the screen protector on the screen. It is very necessary to detect that the screen image is still clear and the color is accurate after the protective film is applied, and does not affect the user's visual experience. Therefore, an optical detection device for screen protectors is urgently needed. Summary of the invention

[0004] The purpose of the present invention is to provide a screen protection film optical detection device in order to overcome at least one of the defects of the above-mentioned prior art.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A screen protection film optical detection device, comprising:

[0007] A rotating disk, wherein a plurality of supporting disks are arranged at intervals along the circumferential direction of the rotating disk;

[0008] A spectrum detection mechanism disposed beside the rotating disk is used to detect the light transmittance, reflectivity and color reproduction of the screen protective film;

[0009] The haze detection mechanism arranged beside the rotating disk is used to detect the haze of the screen protection film.

[0010] Furthermore, the spectrum detection mechanism comprises:

[0011] A first light source is disposed below the carrier plate, and the first light source provides light for the screen protection film in the carrier plate directly above the first light source;

[0012] A spectrum tester is arranged beside the carrying plate, and a detection camera electrically connected to the spectrum tester is arranged on the spectrum tester. The detection camera faces the carrying plate below the detection camera, and collects an image of the screen protective film in the carrying plate. The transmittance, reflectivity and color reproduction of the screen protective film are analyzed by the spectrum tester.

[0013] Furthermore, the haze detection mechanism comprises:

[0014] A second light source is disposed below the carrier plate, and the second light source provides light for the screen protection film in the carrier plate directly above the second light source;

[0015] A haze detector is arranged beside the carrying plate, and is used to detect the light transmittance and haze of the screen protective film.

[0016] Furthermore, the optical detection device is also provided with a driving element, and the output end of the driving element is connected to the rotating disk to drive the rotating disk to rotate along its center.

[0017] Furthermore, a light-transmitting hole is provided in the middle of the carrying plate.

[0018] Furthermore, the light-transmitting hole is in a circular, rectangular or transverse waist shape.

[0019] Furthermore, there are at least three carrying plates.

[0020] Furthermore, a plurality of the carrier plates are evenly arranged on the rotating plate along the circumference of the carrier plate.

[0021] Furthermore, a contoured groove is provided on the carrying plate to accommodate the screen protection film.

[0022] Furthermore, a pair of sliding blocks are arranged on the carrying plate, and the sliding blocks are used to fix the screen protection film arranged in the contoured groove.

[0023] Compared with the prior art, the present invention provides an optical detection device for screen protective films. The device moves the screen protective film to be detected to the bottom of the spectrum detection mechanism and the haze detection mechanism in sequence through a rotating disk for detection. Manual detection is not required, which not only reduces the detection cost but also improves the detection efficiency. At the same time, the present invention detects the transmittance, reflectance and color reproduction of the screen protective film through the spectrum detection mechanism, detects the transmittance and haze of the screen protective film through the haze detection mechanism, and compares the transmittance detected by the spectrum detection mechanism and the haze detection mechanism, which can avoid the detection result being incorrect due to instrument failure, thereby ensuring the stability of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is one of the schematic diagrams of the optical detection device for screen protection film in the embodiment;

[0025] Figure 2 This is a second schematic diagram of the optical detection device for screen protection film in the embodiment;

[0026] As shown in the figure: 1-rotating disk; 2-light-transmitting hole; 3-carrying disk; 4-sliding block; 5-profiling groove; 6-detection camera; 7-spectrum tester; 8-haze detector; 9-first light source; 10-driving element; 11-second light source. DETAILED DESCRIPTION

[0027] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0028] Example

[0029] This embodiment provides a screen protection film optical detection device. Figure 1-2 ,include:

[0030] A rotating disk 1, wherein a plurality of supporting disks 3 are arranged at intervals along the circumferential direction of the rotating disk 1;

[0031] A spectrum detection mechanism disposed beside the rotating disk 1 is used to detect the light transmittance, reflectivity and color reproduction of the screen protection film;

[0032] The haze detection mechanism arranged beside the rotating disk 1 is used to detect the haze of the screen protection film.

[0033] In this embodiment, the spectrum detection mechanism includes:

[0034] a first light source 9 disposed below the carrier plate 3, the first light source 9 providing light for the screen protection film in the carrier plate 3 directly above the first light source 9;

[0035] A spectrum tester 7 is arranged beside the carrying plate 3, and a detection camera 6 electrically connected thereto is arranged on the spectrum tester 7. The detection camera 6 faces the carrying plate 3 below it. The detection camera 6 collects an image of the screen protection film in the carrying plate 3, and analyzes the transmittance, reflectivity and color reproduction of the screen protection film through the spectrum tester 7.

[0036] Specifically, the spectrometer 7 can accurately measure the light transmittance of the screen protective film in different wavelength ranges. In the visible light wavelength range, the degree of transmittance of the screen protective film to different colors of light can be determined. The light transmittance of a high-quality screen protective film should be high, generally required to be above 90%, so as to ensure that the screen content is clearly visible. Through the detection of the spectrometer 7, protective film products with light transmittance that meets the standard can be screened out.

[0037] The screen protector may produce excessive reflection, which will affect the visibility of the screen, especially in a strong light environment. This embodiment can measure the intensity of reflected light at different wavelengths through the spectrum measuring instrument 7, such as detecting the reflectivity under the main wavelength component of sunlight (such as the green light band around 550nm).

[0038] This embodiment evaluates the effect of the screen protective film on screen color reproduction by analyzing the transmittance and reflection characteristics of light of different wavelengths. Different screen protective films may cause deviations in the color displayed on the screen. The spectrum measuring instrument 7 can determine whether the protective film will cause color distortion by comparing the spectral changes of the light source before and after the protective film is placed, such as detecting the spectral changes in the three main color bands of red (620-780nm), green (495-570nm), and blue (450-495nm) to determine whether the screen protective film can accurately restore the original color of the light source.

[0039] In this embodiment, the haze detection mechanism includes:

[0040] a second light source 11 disposed below the carrier plate 3, the second light source 11 providing light for the screen protection film in the carrier plate 3 directly above the second light source 11;

[0041] A haze detector 8 is arranged beside the carrier plate 3 , and the haze detector 8 is used to detect the light transmittance and haze of the screen protection film.

[0042] Specifically, haze refers to the clarity of the cloudy or blurred appearance caused by light scattering inside or on the surface of a material. The haze detector emits light of a certain wavelength and measures the degree of light scattering inside or on the surface of the screen protector to obtain the haze value. At the same time, the present embodiment also detects the transmittance through the haze detector 8, and compares the transmittance with the transmittance measured by the spectrometer to determine whether there is an error in the test result due to instrument failure, thereby ensuring the stability of the test result.

[0043] In this embodiment, the optical detection device is further provided with a driving element 10, and the output end of the driving element 10 is connected to the rotating disk 1 to drive the rotating disk 1 to rotate along its center.

[0044] In this embodiment, a light-transmitting hole 2 is disposed in the middle of the carrier plate 3 , and the light-transmitting hole 2 is in a circular, rectangular or transverse waist shape.

[0045] In this embodiment, there are at least three carrying plates 3 , and the plurality of carrying plates 3 are evenly arranged on the rotating plate 1 along the circumference of the carrying plates 3 .

[0046] In this embodiment, a contoured groove 5 is provided on the carrier plate 3 to accommodate the screen protective film; a pair of sliding blocks 4 are provided on the carrier plate 3 , and the sliding blocks 4 are used to fix the screen protective film arranged in the contoured groove 5 .

[0047] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. A screen protection film optical detection device, characterized in that: include: A rotating disk (1), wherein the rotating disk (1) is provided with a plurality of supporting disks (3) at intervals along the circumferential direction; A spectrum detection mechanism arranged beside the rotating disk (1) is used to detect the light transmittance, reflectivity and color reproduction of the screen protection film; The haze detection mechanism arranged beside the rotating disk (1) is used to detect the haze of the screen protection film.

2. The optical detection device for screen protective film according to claim 1, characterized in that: The spectrum detection mechanism comprises: a first light source (9) disposed below the carrier plate (3), the first light source (9) providing light for a screen protection film in the carrier plate (3) directly above the first light source (9); A spectrum tester (7) is arranged beside the carrier plate (3), and a detection camera (6) electrically connected thereto is arranged on the spectrum tester (7). The detection camera (6) faces the carrier plate (3) below it, and the detection camera (6) collects an image of a screen protection film located in the carrier plate (3). The light transmittance, reflectivity and color reproduction of the screen protection film are analyzed by the spectrum tester (7).

3. The optical detection device for screen protective film according to claim 1, characterized in that: The haze detection mechanism comprises: a second light source (11) disposed below the carrier plate (3), the second light source (11) providing light for a screen protection film in the carrier plate (3) directly above the second light source (11); A haze detector (8) is arranged beside the carrier plate (3), and the haze detector (8) is used to detect the light transmittance and haze of the screen protection film.

4. The optical detection device for screen protective film according to claim 1, characterized in that: The optical detection device is also provided with a driving element (10), the output end of the driving element (10) being connected to the rotating disk (1) so as to drive the rotating disk (1) to rotate along its center.

5. The screen protection film optical detection device according to claim 1, characterized in that: A light-transmitting hole (2) is provided in the middle of the carrying plate (3).

6. The optical detection device for screen protection film according to claim 5, characterized in that: The light transmission hole (2) is in the shape of a circle, a rectangle or a transverse waist.

7. The optical detection device for screen protective film according to claim 1, characterized in that: There are at least three carrying plates (3).

8. The optical detection device for screen protective film according to claim 1, characterized in that: The plurality of carrier plates (3) are evenly arranged on the rotating plate (1) along the circumference of the carrier plate (3).

9. The optical detection device for screen protection film according to claim 1, characterized in that: The carrying plate (3) is provided with a contoured groove (5) for accommodating the screen protection film.

10. The optical detection device for screen protection film according to claim 9, characterized in that: A pair of sliding blocks (4) are arranged on the carrying plate (3), and the sliding blocks (4) are used to fix the screen protection film arranged in the contoured groove (5).

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