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

Claim 9:
10. A method comprising:
forming a waveguide having a first surface and a second surface opposite the first surface, wherein forming the waveguide comprises:
defining a plurality of first grating structures on the second surface along a first region of the waveguide, the plurality of first grating structures being configured to diffract light according to a first diffraction pattern,
defining a plurality of second grating structures on the second surface along a second region of the waveguide different from the first region, the plurality of second grating structures being configured to diffract light according to a second diffraction pattern different from the first diffraction pattern, and
defining a plurality of third grating structures on the second surface along a third region of the waveguide different from the first and second regions, the plurality of third grating structures being configured to diffract light according to a third diffraction pattern different from the first diffraction pattern and the second diffraction pattern,
wherein the second region and third region are defined such that the second region at least partially encloses the third region.