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Design for a Defective Product Inspection Device for the Curved Glass used in Smart-phones
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 Title & Authors
Design for a Defective Product Inspection Device for the Curved Glass used in Smart-phones
Kim, Han-Sol; Lee, Kyung-Jun; Jung, Dong-Yean; Lee, Yeon-Hyeong; Park, Jea-Hyun; Kim, Gab-Soon;
This paper describes the design for a defective product inspection device for the curved glass used in smart-phone. Cameras are used as inspection devices to find cracks in LCDs (Liquid Crystal Displays), PDPs (Plasma Display Panels), etc. The devices used to inspect the curved glass used in smart-phone consist of a camera, two back-light apparatus, an inspection apparatus main body, and an image processing program. Camera image calibration was performed to smooth an image taken with the camera, and as a result, the average error was less than 0.12 pixels. And the image of a smart-phone's curved glass taken with the camera was processed using the produced program. As a result, the program could correctly extract the cracks on the curved glass. Thus, it is thought that the designed inspection device can successful detect cracks in curved tempered glass.
curved glass;inspection system;smart phone;camera;pixel;crack;
 Cited by
열간 슬라브 표면결함 탐상 시스템,윤종필;정대웅;박창현;

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카메라를 이용한 휴대폰 곡면유리의 높이측정,김한솔;이경준;정동연;이연형;김갑순;

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경계 추출 및 처리를 통한 다이아몬드 휠 검사,하종은;

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