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:
Jul. 03, 1990
Filed:
Sep. 23, 1988
Applicant:
Inventor:
Toshihiko Taniguchi, Ikoma, JP;
Assignee:
West Electric Company, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C / ; G01C / ; G03B / ;
U.S. Cl.
CPC ...
356-1 ; 354403 ; 354408 ;
Abstract
In a distance detecting apparatus comprising a light receiving sensor PSD which outputs two photo-currents which correspond to the incident angle of reflection of light reflected from an object lit by emitted comprising, an integral capacitor and a pair of logarithmic converters, a shift of the PSD away from the center of the optical axis can be easily compensated by simple electrical adjustment of constant current value of constant current source in a power source shifting circuit connected to one of the logarithmic converters.