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. 16, 2018
Filed:
Aug. 12, 2016
Sick Ag, Waldkirch/Breisgau, DE;
Eva-Maria Kriener, Freiburg, DE;
Roland Albrecht, Elzach, DE;
SICK AG, Waldkirch/Breisgau, DE;
Abstract
The invention relates to an optical sensor having a light transmitter for transmitting transmitted light into a detection zone, having a first and a second light receiver which are configured for receiving received light from the detection zone which is reflected in a reflective or diffuse manner and for generating received signals from the received light, and having an evaluation unit for generating a detection signal from the received signals. The light receivers are arranged such that each light receiver receives a portion of the received light. Each light receiver has an effective reception surface, with the effective reception surface of the second light receiver being smaller than the effective reception surface of the first light receiver such that the ratio between the received signal generated by the first light receiver and the received signal generated by the second light receiver depends on the sensing distance of the detected object.