Patent ID: 11927755
Assignee: TECHNOLOGY INNOVATION MOMENTUM FUND (ISRAEL) LIMITED PARTNERSHIP
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H  A | IPC F  G  H

Claim 23:
24. A see-through display configured for generating augmented reality images comprising:
a first optical system coupled to a first eye of a user, and comprising a stack of metasurface (MS) layers configured to receive light constituting an image, and a waveguide (WG) coupled to the stack, wherein each layer in the stack of MS layers is configured to provide a resonant response that enhances an interaction amplitude of an optical field at a different spectral band and to couple the resonant response with a WG, wherein the WG is configured to propagate the different spectral bands in a direction of the eye;
a frame configured to mount the optical system in relation to a user's eye;
a display configured to generate images;
a gaze tracking device including a camera configured to capture images of a second eye, wherein the camera is mounted on the frame;
a light emitting diode (LED) configured to direct light toward the second eye, wherein the LED is configured to emit light in a non-visible band; and
a second optical system coupled to the second eye of the user, wherein the gaze tracking device is coupled to the second optical system and the second optical system is configured to direct light reflected from the second eye toward the camera, wherein the second optical system includes a single MS layer coupled to a WG, wherein the camera is configured to receive light reflected from the second eye via the WG of the second optical system, wherein the single MS layer is configured to couple IR light or N-IR light reflected from the second eye to the camera of the gaze tracking device.