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. 10, 1998
Filed:
Sep. 06, 1995
Hitachi, Ltd., Tokyo, JP;
Abstract
A concave mirror which has rigidity higher than an aluminum foil mirror and is light-weight and low cost compared with a polished glass mirror is composed of at least one concave mirror unit of a synthetic resin material molded to a concave shape and an aluminum reflecting layer vapor deposited on a front or rear surface of the concave mirror unit. A low cost image display device capable of projecting an image onto the concave mirror without using any specially designed projection lens includes at least a projection type cathode ray tube having a flat or substantially flat phosphor surface panel and a transmission type screen and the concave mirror. A multi-screen system which includes a plurality of the image display devices juxtaposed to provide an increased horizontal view angle is provided. Further, a sensory integration system using the image display device is provided.