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:
Mar. 19, 1996
Filed:
Aug. 23, 1994
Hideo Tanide, Yokohama, JP;
Masayuki Muranaka, Yokohama, JP;
Shigeru Mori, Chigasaki, JP;
Kiyoshi Wada, Yokohama, JP;
Isao Yoshizaki, Yokohama, JP;
Naoyuki Ogura, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Sega Enterprises, Ltd., Tokyo, JP;
Abstract
An ultra-wide angle liquid crystal projector system comprising a light source, a liquid crystal panel, a curved screen, and a projection lens for projecting in accordance with light emitted by the light source an image formed on the liquid crystal panel onto the curved screen. The projection lens has a curvature of field substantially conforming to the shape of the curved screen and an angle of projection of at least 120 degrees. The projection lens is disposed with respect to the curved screen so that a distance from an exit surface of the projection lens to the curved screen is less than 3 meters.