Patent ID: 11966138
Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 1:
2. A method comprising:
receiving light from a light source;
creating a predetermined illumination from the light;
receiving the predetermined illumination at a spatial light modulator comprising a number of grating stages, each grating stage in the number of grating stages comprising a plurality of pixels where corresponding pixels in each of the number of grating stages are aligned with one another, and where each of the plurality of pixels comprises a liquid crystal layer disposed between two substrates, where one or more of the two substrates is coated with a photo-alignment layer adjacent to the liquid crystal layer and coated with transparent electrodes;
applying an electrical vias to at least one grating stage in the number of grating stages, whereby said applying deflects optical energy from the predetermined illumination that is in plus and minus first orders while optical energy from predetermined illumination that is in a zero order passes through the at least one grating.