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:
Jul. 25, 2000
Filed:
Aug. 27, 1998
Shoichi Yamazaki, Yokohama, JP;
Mixed Reality Systems Laboratory, Inc., Yokohama, JP;
Abstract
The present invention relates to a compact, composite display apparatus capable of simultaneously establishing a display optical system and an image-pickup optical system or a seethrough optical system without parallax, which has the following structure. The apparatus comprises a display optical system for guiding a light beam from a display device displaying image information, to an eyeball of an observer and an image-pickup optical system for focusing a light beam from the outside on an image pickup device, wherein an optical path separator provided in an optical path is arranged to substantially align an eyeball optic axis of the light beam incident from the display optical system to the eyeball of the observer or a virtual eyeball optic axis as an extension on the outside of the eyeball optic axis with an outside optic axis of the light beam incident from the outside of the image-pickup optical system, the apparatus having a shield device for preventing the light beam from the display device from entering the image pickup device of the image-pickup optical system.