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:
Aug. 24, 2021
Filed:
Apr. 30, 2020
Trumpf Photonic Components Gmbh, Ulm, DE;
Holger Joachim Moench, Ulm, DE;
Matthew John Lawrenson, Eindhoven, NL;
Nicholas Walker, Eindhoven, NL;
Jan Jasper Van Den Berg, Eindhoven, NL;
TRUMPF PHOTONIC COMPONENTS GMBH, Ulm, DE;
Abstract
A time-of-flight camera module includes a controller, a time-of-flight detector, a laser device, and an optical unit comprising a polarization rotator arranged to rotate a plane of polarized light. The controller is configured to modulate the time-of-flight detector and the laser device in a depth sensing mode. The time-of-flight detector is configured to record depth data of a scene in the depth sensing mode by means of modulated laser light emitted by the laser device and reflected from an object in the scene. The depth data is descriptive of a distance to the object in the scene. The controller is further configured to modulate the time-of-flight detector and the polarization rotator in a surface polarization sensing mode. The time-of-flight detector is configured to record polarization data of the scene in the surface polarization sensing mode by detection light received from the object in the scene after traversing the polarization rotator.