Patent ID: 11860387
Assignee: II-VI DELAWARE, INC.
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 18:
19. A method, comprising:
transmitting an optical signal from an optical element positioned at a first surface of a substrate;
passing the optical signal through the substrate toward a second surface of the substrate opposite to the first surface;
propagating the optical signal through a diffuser positioned at the second surface of the substrate; and
controlling a particular profile of a resultant beam of the optical signal after the optical signal propagates through the diffuser by diffracting or refracting the optical signal with a plurality of lenslets arranged in a pseudorandom distribution on the diffuser,
wherein the plurality of lenslets comprise first portions positioned on the second surface and second portions positioned on the first portions,
wherein the first portions and the second portions have complementary optical effects.