Milan Momcilo Popovich,Jonathan David Waldern,Alastair John Grant
申请号：
US15274049
公开号：
US09804389B2
申请日:
2016.09.23
申请国别(地区):
US
年份:
2017
代理人:
摘要：
An eye tracker having a waveguide for propagating illumination light towards an eye and propagating image light reflected from at least one surface of an eye, a light source optically coupled to the waveguide, and a detector optically coupled to the waveguide. Disposed in the waveguide is at least one grating lamina for deflecting the illumination light towards the eye along a first waveguide path and deflecting the image light towards the detector along a second waveguide path.
