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:
Sep. 23, 2008
Filed:
Jun. 08, 2007
Kazuhiro Shimoda, Odawara, JP;
Kazuhiro Shimoda, Odawara, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
First and second polarizing plates are placed to be crossed nicols across a film to be inspected. A light source projects light toward the film through the first polarizing plate. Alight receiver receives the light transmitted through the film and the second polarizing plate. When θrepresents an angle formed between an optical axis of the light receiver and a normal line that is perpendicular to the film surface, and θrepresents a rotational angle formed between the optical axis and a reference line that is orthogonal to a slow axis of the film, the light receiver is positioned to satisfy the following conditions: 15°≦θ≦35°, 20°≦θ≦60°.