Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Alastair John Grant0
Milan Momcilo Popovich0
Jonathan David Waldern0
Date of Patent
May 28, 2024
0Patent Application Number
173223870
Date Filed
May 17, 2021
0Patent Citations
...
Patent Primary Examiner
CPC Code
Patent abstract
An eye tracker comprises a light source; a detector; and first and second waveguides. The first waveguide comprises an input coupler for coupling source light into a waveguide path and a first grating for coupling light out of the waveguide path onto an eye. The second waveguide comprises a second grating for coupling light reflected from the eye into a waveguide path and an output coupler for coupling light out of the waveguide path onto the detector. The second grating is optically configured for imaging the eye onto the detector.
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