Patent ID: 8998414
Filing Date: 2015-04-07
Classification: G02B

Abstract:
1. An integrated eye tracking and display system for a near-eye, mixed reality display device comprising: a display optical system positioned to be seen through by an eye by the near-eye, mixed reality display device, the display optical system having an optical axis and a planar waveguide; one or more wavelength selective filters positioned in the planar waveguide in co-axial alignment with the optical axis of the display optical system for directing infrared and visible illumination out of the planar waveguide in the direction of the eye and for directing infrared reflections from the eye into the planar waveguide; and an integrated array of optical elements including light sources interspersed with one or more infrared sensors, the light sources being for transmitting infrared and visible illumination, the light sources being optically coupled to the planar waveguide for directing their illumination into the planar waveguide, and the one or more infrared sensors of the integrated array being optically coupled to the planar waveguide for receiving infrared reflections directed from the one or more wavelength selective filters.