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:
Sep. 29, 1998
Filed:
May. 15, 1997
Atsushi Okuyama, Tokorozawa, JP;
Shouichi Yamazaki, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image observing apparatus according to the present invention includes: an optical element including a first face inclined relative to an observer, a second face composed of a reflective concave side, and a third face which the light from the image enters so as to have overall a positive refractive power; a line-of-sight detecting device for detecting a line of sight of the observer including a light source to illuminate a fore eye portion of the observer and a light receiving device for receiving an image of the fore eye portion; and a light reflecting device, provided in an observing side of the first face, for reflecting the light emanating from the light source. In this image observing apparatus, the light from the image entering the third face is reflected by the first face, is condenser-reflected at a first face side by the second face, and is irradiated from the first face. Moreover, the light, from the light source, reflected at the fore eye portion of the observer is reflected by the light reflecting device and enters the light receiving device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile