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:
Jan. 09, 2024
Filed:
Aug. 12, 2019
Applicant:
Robert Bosch Gmbh, Stuttgart, DE;
Inventors:
Reinhold Fiess, Durbach, DE;
Andreas Petersen, Marbach, DE;
Thomas Alexander Schlebusch, Renningen, DE;
Assignee:
ROBERT BOSCH GMBH, Stuttgart, DE;
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/32 (2006.01); G06F 3/01 (2006.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
G06F 3/013 (2013.01); G02B 27/0093 (2013.01); G02B 5/32 (2013.01);
Abstract
A method for ascertaining a viewing direction of an eye. A laser beam emitted by a laser source is passed over at least two scanning points on the eye, using a reflection element and a deflecting element. A self-mixing effect of the scanning laser beam reflected by the eye into the laser source is used, in order to determine, for the at least two scanning points, the optical path length from the laser source to the at least two scanning points on the surface of the eye and/or a reflectivity of the eye at the at least two scanning points.