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:
Apr. 04, 1989
Filed:
Sep. 01, 1987
Kenya Yokoi, Yokohama, JP;
Takamichi Enomoto, Shiroyamamachi, JP;
Fuyuhiko Matsumoto, Kawasaki, JP;
Wasaburo Ohta, Yokohama, JP;
Toru Miyabori, Kawasaki, JP;
Akihiko Kanemoto, Yokohama, JP;
Haruo Iimura, Yokohama, JP;
Takaaki Miyashita, Yokohama, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A projection device for irradiating a light to a display device and optically magnifying and projecting a reflection light therefrom includes a liquid crystal cell, a first polarization device and a reflection device disposed respectively on the opposite side from the irradiated side of the liquid crystal cell and a second polarization device and optical magnifying means disposed respectively on an optical path of the reflection light reflected by said reflection device and outgoing from said liquid crystal cell.