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. 09, 1994
Filed:
Sep. 24, 1993
Hitoshi Mukaiya, Saitama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A focus detecting device is disclosed including an image sensor, a phase control plate for causing image forming positions of light incident on a plurality of areas in an imaging plane of the image sensor to differ from each other, and a focus detecting circuit for computing the image signals corresponding to the plurality of areas of which the image forming positions are different to detect a focusing state. A solid-state image sensor is also disclosed including a plurality of photoelectric conversion element rows and a phase control plate positioned on a photoelectric conversion plane of the photoelectric conversion element rows to cause image forming positions of incident light to differ at intervals of integer times the interval in the photoelectric conversion element rows.