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:
Nov. 01, 1988
Filed:
May. 08, 1987
Applicant:
Inventor:
Alfons Ernst, Traunreut, DE;
Assignee:
Dr. Johannes Heidenhain GmbH, Traunreut, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
2502 / ; 2502 / ;
Abstract
A photoelectric measuring system for detecting an oscillation pattern produced by a light measuring apparatus and generating harmonic free electrical output signals up to a predetermined band width. Any number of harmonics may be eliminated by selecting the size, shape, and position of a plurality of photoelements with respect to the oscillation pattern detected.