Patent ID: 11899216
Assignee: MAGIC LEAP, INC.
Field: Optics (Instruments)
Classification: CPC G | IPC F  G

Claim 0:
1. An apparatus comprising:
an eyepiece comprising a waveguide positioned to receive light from a light projector and couple the light into the waveguide, the waveguide comprising a first surface and a second surface opposite the first surface,
wherein in a first region of the waveguide, the second surface defines a plurality of first grating structures configured to diffract light according to a first diffraction pattern;
wherein in a second region of the waveguide different from the first region, the second surface defines a plurality of second grating structures configured to diffract light according to a second diffraction pattern different from the first diffraction pattern;
wherein in a third region of the waveguide different from the first and second regions, the second surface defines a plurality of third grating structures configured to diffract light according to a third diffraction pattern different from the first and second diffraction patterns; and
wherein the second region of the waveguide at least partially encloses the third region of the waveguide.