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. 22, 1998
Filed:
Aug. 08, 1996
Applicant:
Inventors:
Mitsuo Kobachi, Ayama-gun, JP;
Akihiro Fujita, Kitakatsuragi-gun, JP;
Naoto Hasegawa, Kitakatsuragi-gun, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
250239 ; 250551 ; 257 81 ;
Abstract
A photoreflective detector includes a light emitting element; and a light receiving element located so as to receive light emitted from the light emitting element and reflected by an object. The light emitting element and the light receiving element are located to have different distances from the object so as to avoid direct incidence of the light emitted by the light emitting element on the light receiving element.