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. 09, 2014
Filed:
Jun. 18, 2010
Pawel Drabarek, Tiefenbronn, DE;
Pawel Drabarek, Tiefenbronn, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An interferometric path and/or rotation measuring device has a transducer unit with grating element, which transducer cooperates with a light conductor unit and a light pickup unit to detect a linear and/or rotational movement of the grating element in such a way that two partial beams of the light conductor unit which are aimed at the grating element, generate a superposition signal which is detectable by the light pickup unit and is a function of the linear or rotational movement and/or a position of the grating element. A modulation interferometer unit is connected upstream from the light conductor unit and has an arrangement for beam splitting into the two partial beams.