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. 03, 2015
Filed:
Aug. 22, 2009
Cristina Alvarez Diez, Aalen, DE;
Frank Hoeller, Aalen, DE;
Bernd Spruck, Moegglingen, DE;
Marc Tremont, Schorndorf, DE;
Cristina Alvarez Diez, Aalen, DE;
Frank Hoeller, Aalen, DE;
Bernd Spruck, Moegglingen, DE;
Marc Tremont, Schorndorf, DE;
Carl Zeiss AG, Oberkochen, DE;
Abstract
A device for determining a position of an object () in a spatial region () comprises a light source (), a light directing device (-), at least one reference signal detector () and a detector arrangement (). The light source () generates a sequence of light pulses with a repetition rate. The light directing device (-) directs the sequence of light pulses into the spatial region () and, as a reference signal (), to the at least one reference signal detector (). The detector arrangement () detects a plurality of light signals () which are reflected and/or scattered by the object () in the spatial region () into a plurality of different directions by reflection and/or scattering of the sequence of light pulses. The evaluation circuit () is coupled to the detector arrangement () and the at least one reference signal detector () and determines a phase difference () between the reference signal () and a signal component of at least one light signal (). The phase difference is determined based on the signal component which has a frequency that corresponds to a multiple of the repetition rate.