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Mobile phone glass AF membrane surface defect detection device and detection method

A defect detection, film surface technology, applied in the direction of measuring devices, optical testing of defects/defects, material analysis through optical means, etc., can solve the problems of high light transmittance of AF film, achieve low cost, high detection efficiency, and detection The results are accurate

Pending Publication Date: 2018-12-18
TZTEK TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the extremely thin and extremely high light transmittance of the AF film, these defects cannot be identified using conventional optical inspection methods

Method used

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  • Mobile phone glass AF membrane surface defect detection device and detection method
  • Mobile phone glass AF membrane surface defect detection device and detection method
  • Mobile phone glass AF membrane surface defect detection device and detection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as Figure 1 to Figure 3As shown, a mobile phone glass AF film surface flaw detection device includes a conveyor belt 1, a camera 4, and a light source 5 that are all connected to the detection control system. The glass 9 is placed on the conveyor belt 1, and the camera 4 and light source 5 are located on the conveyor belt. 1, the camera 4 shoots the AF film of the glass under test, and the light source 5 irradiates the AF film of the glass under test; it also includes a spray device 3, which is located on one side of the camera 4, and the spray device 3 is connected with the detection control system, and the spray device 3 The nozzle 31 is located above the tested glass AF film, and the nozzle 31 sprays water mist evenly on the surface of the glass AF film, and the surface of the glass AF film is uniformly covered with a layer of tiny mist, and the camera 4 shoots the glass AF before the mist disappears. the surface of the membrane.

[0044] The nozzle 31 is prov...

Embodiment 2

[0062] On the basis of the above embodiments, the steam generator 32 is connected to the high temperature superheater 34 through the connecting pipe, and the high temperature superheater 34 is connected to the mixing box 37 through the gas outlet pipe 35 .

[0063] The high-temperature superheater 34 further heats the steam, and the steam forms superheated saturated steam. The superheated saturated steam is not easy to condense into water, so that when the steam is ejected from the nozzle 31, water droplets can be formed uniformly, so as to avoid rapid cooling of the steam to form larger water droplets. At the same time, it is possible to avoid the formation of condensed water when mixing with air inside the mixing box 37 . The high-temperature superheater 34 is an existing mature product. The high-temperature superheater 34 is electrically heated to maintain a high temperature state. The steam is further heated through the high-temperature superheater 34, and the steam becomes...

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Abstract

The invention relates to a membrane surface detection method, in particular to a mobile phone glass AF membrane surface defect detection device. The detection device comprises a conveyor belt, a camera and a light source which are all connected with a detection control system, glass is placed on the conveyor belt, the camera and the light source are both located above the conveyor belt, the camerashoots a detected glass AF membrane, and the light source irradiates the detected glass AF membrane; and the detection device further comprises a spray device, the spray device is located at one sideof the camera and connected with the detection control system, a nozzle of the spray device is located over the detected glass AF membrane and uniformly sprays water mist to the surface of the glassAF membrane, the surface of the glass AF membrane is uniformly covered with a layer of small mist drops, and the camera shoots the surface of the glass AF membrane before the mist drops disappear. Thedetection device is simple in structure, low in cost, high in detection efficiency and accurate in detection result and can effectively detect defects of the AF membrane and increase the detection rate of the defects such as glass surface scratches, bruises and dirties.

Description

technical field [0001] The invention relates to a film surface detection method, in particular to a mobile phone glass AF film surface defect detection device and detection method. Background technique [0002] The surface of the smartphone glass will be coated with a layer of AF film (Anti-fingerprint coating) with a thickness of more than ten nanometers for anti-oil, anti-fouling and anti-fingerprint. Due to problems such as the coating process, the AF film may not be completely covered on the glass surface, and there may be flaws such as scratches, bruises, and dirt. But because the AF film is extremely thin and has a high light transmittance, these defects cannot be identified using conventional optical inspection methods. Contents of the invention [0003] In order to solve the above problems, the present invention provides a method that uses the hydrophobic characteristics of the AF film to form a layer of tiny droplets on the surface of the AF film to be tested, an...

Claims

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Application Information

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IPC IPC(8): G01N21/88
CPCG01N21/8851G01N2021/8887
Inventor 毛秦军朱怡秦锡锋魏小寅
Owner TZTEK TECH
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