The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 11, 2014
Filed:
May. 20, 2011
Toshihiko Suzuki, Tokyo, JP;
Hidetoshi Matsumoto, Tokyo, JP;
Munehisa Kato, Tokyo, JP;
Makoto Kurumisawa, Tokyo, JP;
Toshihiko Suzuki, Tokyo, JP;
Hidetoshi Matsumoto, Tokyo, JP;
Munehisa Kato, Tokyo, JP;
Makoto Kurumisawa, Tokyo, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
A transparent body inspecting device includes a light application unit, an image capturing unit, an image capture driving unit, and a defect determining unit. The image capturing unit is moved in the directions in which the image capturing unit is brought close to and away from the upper surface of the transparent body, and the image capturing unit captures a plurality of images of the transparent body during the movement. The images are captured while the position of the depth of field of the image capturing unit is adjusted to more than one spots inside the transparent body. When brightness of pixels in the captured image is nonuniform, the defect determining unit determines that a defect exists within the depth of field at the time of capture of the image.