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:
Aug. 18, 1998
Filed:
Jul. 28, 1997
Shinichi Matsuyama, Tokyo, JP;
Takashi Kawabata, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An optical apparatus includes area sensors which are made to differ in picture element pitch between the central portions and the marginal portions thereof (the marginal portions are made to have a coarse picture element pitch since it is not very meaningful even if the picture element pitch is made fine because the performance of an optical system is limited, and the central portions are made to have a dense picture element pitch) and the changeover of the respective picture elements is electronically effected by reading-out means so that two kinds of object field information (detailed information and coarse information) may be obtained from the area sensors.