Patent · US Active

Method for detecting a gaze direction of an eye

US11435578B2 · kind B2 · utility

0Cited by

0References

13Claims

0Family size

Assignees

TRUMPF PHOTONIC COMPONENTS GMBH · DE
Robert Bosch GmbH · DE

Inventors

Andreas Petersen · Erbach, DE
Thomas Alexander Schlebusch · Renningen, DE
Johannes Meyer · Karlsfeld, DE
Hans Spruit · Waalre, NL
Jochen Hellmig · Ulm, DE

Key dates

Filing date	Jun 1, 2021
Grant date	Sep 6, 2022
Priority date	—
Expiry date	Jun 1, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG02B2027/0187
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method for detecting a gaze direction of an eye includes the steps of irradiating at least one wavelength-modulated laser beam onto an eye, detecting an optical path length of the emitted laser beam based on laser feedback interferometry of the emitted laser radiation with a backscattered radiation from the eye, detecting a Doppler shift of the emitted radiation and the backscattered radiation based on the laser feedback interferometry, detecting an eye velocity based on the Doppler shift, and detecting an eye movement of the eye based on the optical path length and the eye velocity.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.