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:
Jun. 23, 1998
Filed:
Jun. 09, 1997
Applicant:
Inventors:
Akira Yamada, Yokohama, JP;
Keiji Nagata, Yokohama, JP;
Yoshiaki Irie, Yokohama, JP;
Akihiko Nagano, Ichihara, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
396 51 ;
Abstract
An optical apparatus for detecting rotation of an eyeball of an observer to provide sight line information, including an optical unit for imaging light flux from the eye of the observer, an image sensor for receiving light flux from the optical unit, and a control unit for designating a read-out region for the image sensor and reading out information from the read-out region.