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. 08, 2024
Filed:
Feb. 05, 2021
Sick Ag, Waldkirch, DE;
SICK AG, Waldkirch, DE;
Abstract
A safety laser scanner () for detecting objects in a monitored zone () is provided that has a light transmitter () for transmitting a scan beam (), a movable deflection unit () for the periodic scanning of the monitored zone () by the scan beam (), a light receiver () for generating a received signal from the scan beam () remitted by the objects, a front screen (), and a control and evaluation unit () that is configured to acquire information on the objects in the monitored zone () from the received signal and to recognize an impaired light permeability of the front screen () in a front screen monitoring by evaluating a front screen reflection beam () that is generated from the scan beam () by reflection at the front screen (), At least one light deflection unit () is provided in the optical path of the front screen reflection beam () that guides the front screen reflection beam () to the front screen () again in a region () to be tested so that a twice-reflected front screen reflection beam () is produced by reflection at the region () to be tested.