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. 14, 1992
Filed:
Nov. 07, 1990
Applicant:
Inventors:
Eugene F Duncan, Wauwatosa, WI (US);
Gregory L Nadolski, Brookfield, WI (US);
Assignee:
Eaton Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01V / ;
U.S. Cl.
CPC ...
250560 ; 250561 ; 356387 ;
Abstract
An optoelectronic position-sensitive detector (PSD) is used with a light emitting diode (LED) in a through-beam photoelectric sensor application to detect the lateral position of an edge of an article or the lateral position or size variation of a thin object such as a small diameter fiber. The LED is offset toward one end of the PSD to establish a higher output signal at one end of the PSD than at an opposite end, thereby maintaining a positive output signal for the sensor. The LED and the PSD are potted with clear epoxy within holes in aluminum housing plates to provide RFI and EMI shielding.