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:
Oct. 27, 2015
Filed:
Aug. 30, 2013
Sick Stegmann Gmbh, Donaueschingen, DE;
David Hopp, Donaueschingen, DE;
SICK STEGMANN GMBH, Donaueschingen, DE;
Abstract
The invention relates to a device for measuring the relative position of two objects moving relative to each other along an axis or around a rotating axis (D), with a transmitter () which emits unpolarized light, and with a polarizer (), and with at least one receiver () which measures the luminosity of the light passing through the polarizer () in order to create a position-dependent signal, such that a polarizing filter is positioned in front of the receiver (), and the receiver () and the polarizer () move relative to each other as a function of the relative position of the two objects, and such that the polarizer () has at least two different polarizing directions.