Patent ID: 11885969
Assignee: MAGIC LEAP, INC.
Field: Optics (Instruments)
Classification: CPC G | IPC F  G

Claim 16:
17. A method comprising:
providing a first optical element comprising a binary grating formed along a first surface of the first optical element, the binary grating comprising:
a plurality of protrusions comprising a first material having a first refractive index for a visible wavelength of light, and each of the protrusions comprising a first surface opposite a base portion of the first optical element, and
a second material deposited between at least some of the plurality of protrusions along the first surface of the first optical element, the second material having a second refractive index for the visible wavelength of light,
wherein there is an absence of the second material on the first surfaces of the protrusions; and

positioning the first optical element in optical communication with a second optical element, such that the first optical element and the second optical element are stacked in a first direction, and such that the plurality of protrusions of the first optical element extend from the base portion of the first optical element and towards the second optical element in the first direction.