ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,736,709, issued on Sept. 15, was assigned to ROBERT BOSCH GMBH (Stuttgart, Germany).
"Device for producing a light barrier" was invented by Holger Joachim Monch (Vaals, Netherlands), Sven Bader (Neu-Ulm, Germany), Jochen Hellmig (Valkenswaard, Netherlands), Hans Spruit (Waalre, Netherlands), Pieter Hoeven (Meierijstad, Netherlands) and Stephan Gronenborn (Aachen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device for producing a light barrier includes a laser unit with at least one vertical cavity surface emitting laser (VCSEL), a photodiode, and a reflector. The reflector is configured to reflect light emitted by the VCSEL, such that a li...