Patent ID: 11906761
Assignee: LEIA INC.
Field: Optics (Instruments)
Classification: CPC G | IPC F  G

Claim 4:
5. A method of multicolor static multiview display operation, the method comprising:
guiding in a light guide a plurality of guided light beams comprising a selectable color, guided light beams of the guided light beam plurality having a common point of origin and different radial directions from one another; and
emitting a plurality of directional light beams representing a color static multiview image using a plurality of diffraction gratings, a diffraction grating of the diffraction grating plurality diffractively coupling out light from the guided light beam plurality as a directional light beam of the directional light beam plurality having an intensity and a principal angular direction of a corresponding view pixel of the color static multiview image,
wherein the intensity of the emitted directional light beam is controlled by a grating depth of the diffraction grating, the grating depth being based on a location of the diffraction grating relative to the common origin point; and at least two directional light beams have different intensities, and
wherein the principal angular direction of the emitted directional light beam is controlled by one or both of a grating pitch of the diffraction grating and a grating orientation of the diffraction grating; the one or both of the grating pitch and the grating orientation being based on the location of the diffraction grating relative to the common origin point,
and wherein a color of the directional light beam is determined by the selectable color.