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:
Jun. 24, 2003
Filed:
Dec. 24, 1998
Tatsuya Yamazaki, Saitama-ken, JP;
Toshiyuki Imaizumi, Fujioka, JP;
Katsumi Omote, Fukaya, JP;
Kazumasa Hirayama, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A cathode ray tube phosphor screen inspecting method includes the steps of illuminating a panel of a cathode ray tube, in which a phosphor screen having a regular pattern is formed the inner surface of a face, from the inner surface of the face, imaging the face inner surface, and specifying a defect on the phosphor screen from data obtained by the imaging. The panel, an illuminating unit for illumination, and an image unit for performing the imaging are moved relative to each other. The amount of light from the illuminating unit is changed in accordance with this relative movement.