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. 24, 2004
Filed:
Aug. 01, 2000
Applicant:
Inventors:
Akira Kobayashi, Osaka, JP;
Masatoshi Nakamura, Takarazuka, JP;
Ryoichi Inoue, Izumi, JP;
Tsuyoshi Nomura, Kyoto, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 ;
U.S. Cl.
CPC ...
G06K 9/00 ;
Abstract
An apparatus for inspecting the coating of a fluorescent substance on a plasma display panel includes an illumination device for irradiating UV light onto the fluorescent substance for causing the fluorescent substance to emit light, and an imaging device for picking up the emission of the fluorescent substance. A filter, that lets only light of certain wavelengths in accordance with light emission characteristics of the fluorescent substance pass, is arranged between the imaging device and the panel being inspected.