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:
Nov. 23, 1999
Filed:
Jun. 09, 1998
Tetsuya Masumura, Kumagaya, JP;
Katsumi Omote, Fukaya, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An exposure apparatus for exposing a phosphor screen of a cathode ray tube includes a light source portion having an elongate light source lamp and a shading member arranged to face the lamp. The shading member is formed with a slit through which a light beam from the lamp passes. The slit is formed in a V-shaped configuration in which it protrudes toward the light source lamp. The shading member is formed such that a cross section thereof in the direction in parallel to the axis of the light source lamp has a wedge-like shape in which the thickness increases from the edge of the slit toward the end thereof in the direction of the axis, and such that a cross section in a direction perpendicular to the axis has a uniform thickness at the position of the slit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile