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:
Jan. 29, 2002
Filed:
Aug. 10, 1999
Masahiko Inami, Tokyo, JP;
Naoki Kawakami, Tottori, JP;
Yasuyuki Yanagida, Tanashi, JP;
Taro Maeda, Tokyo, JP;
Susumu Tachi, Tsukuba, JP;
Minolta Co., Ltd., Osaka, JP;
Abstract
A projector is disposed at a position that is optically conjugated to a position of eyes of an observer. The projector projects an image to a screen that has retroreflection function so as to provide information of virtual space to the observer. If a real object such as a tactile sense provision device that is to be shielded by the virtual space exists, a part or the whole of the real object is optically hidden from the projection of the projector by a shielding member having retroreflection function, for example, by placing a shielding screen on which a retroreflection material is coated, or by coating the retroreflection material.