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:
Dec. 30, 2025
Filed:
May. 04, 2022
Idloop Gmbh, Jena, DE;
Bernd Reinhold, Jena, DE;
IDLOOP GMBH, Jena, DE;
Abstract
A device, for contactless optical recording of a papillary structure of a hand or parts thereof, includes a lighting unit illuminating the hand or parts thereof with emitted structured light, and a camera detecting structured light emitted from the lighting unit, which is diffusely reflected from the hand or parts thereof in an object plane of the camera. A nonzero difference in distances between the camera along an optical axis of an optical path of the camera and the lighting unit along an optical axis of an optical path of the lighting unit from the object plane of the camera is present in order to determine a position of the hand or parts thereof along the optical axis of the optical path of the camera in relation to a range of depth of field of the camera using a structure size determined in the light detected by the camera.