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:
May. 15, 2018
Filed:
Jul. 28, 2014
Conti Temic Microelectronic Gmbh, Nuremberg, DE;
Guenter Anton Fendt, Schrobenhausen, DE;
Conti Temic microelectronic GmbH, Nuernberg, DE;
Abstract
In a method of determining the distance of an object (), a polarization-modulated transmission light beam (LS) is reflected at the object () and is received as a reception light beam (LE) by a polarization analyzer, and the output signal thereof is fed to an evaluation unit (A) for determining the distance. The polarization-modulated transmission light beam (LS) is generated by at least two light sources (D, D, D) which emit differently polarized light beams (L, L, L), wherein the light sources (D, D, D) are each respectively operated with a distinct defined mark-space pattern (M, M, M, M, M, M). The polarization analyzer has polarization filters (P, P, P) corresponding at least to the number of light sources. The respective polarization plane of each one of the polarization filters is correspondingly adapted to a respective polarization plane (E, E, E) of the light beams (L, L, L).