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. 25, 1996
Filed:
Dec. 09, 1994
Keiji Ohsawa, Tokyo, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A focus-detecting device for receiving light rays from a photographic field to detect a state of focus of a lens includes a sensor positioned to receive light rays from the photographic field. The sensor includes a plurality of sensor elements, at least one of the sensor elements being adjustably positionable independently of another of the sensor elements. A plurality of light-receiving components are coupled with the sensor elements to receive the light rays transmitted from the photographic field. The light-receiving components are grouped into a plurality of detectors coupled with one of the sensor elements to detect different areas in the photographic field to detect a state of focus of the lens. A method of use also is disclosed.