Inspection device for transparent substrate end surface and...

Details Inspection device for transparent substrate end surface and... Inspection device for transparent substrate end surface and...

2007-10-30

2007-10-30

Pham, Hoa Q. (Department: 2886)

Optics: measuring and testing

Inspection of flaws or impurities

Transparent or translucent material

Reexamination Certificate

active

10547827

ABSTRACT:
An inspection apparatus for inspecting an end face of a transparent substrate and an inspection method for inspecting an end face of a transparent substrate according to the present invention are capable of reliably and accurately detecting defects at the end face of the transparent substrate. When a display panel substrate10which is a transparent substrate to placed on a rotating table21, a light is intermittently emitted from an end-face illuminating unit39arranged opposite to the end face of the display panel substrate10. The light emitted along the surface of the substrate10is reflected from a lower reflecting mirror42toward the end face of the transparent substrate10. The end face and an adjacent portion thereof are imaged by a CCD camera36. Defects at the end face of the display panel substrate10are detected based on an image density of each pixel in the obtained image data.

REFERENCES:
patent: 3985454 (1976-10-01), Fletcher et al.
patent: 6294793 (2001-09-01), Brunfeld et al.
patent: 6618136 (2003-09-01), Ishida
patent: 06-258231 (1994-09-01), None
patent: 10-132758 (1998-05-01), None
patent: 10-213551 (1998-08-01), None
patent: 2002-214157 (2002-07-01), None
patent: 2003-247953 (2003-09-01), None
patent: 2003-270170 (2003-09-01), None

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