Patent ID: 9696687
Date: 2017-07-04
CPC Classifications: G02B,G03H

Claim:
1. A complex spatial light modulator comprising: a spatial light modulator configured to modulate a phase of light; a first prism array which is disposed after the spatial light modulator along a path of the light, and comprising prism units each consisting of a first prism surface and a second prism surface; and a hologram optical device configured to diffract the light independently from a polarization of the light, wherein the first prism array and the hologram optical device are configured to modulate the phase and an amplitude of the light, and wherein the spatial light modulator comprises a plurality of pixels, each prism unit faces only two pixels among the plurality of pixels, and the hologram optical device combines first light and second light from the two pixels, respectively, such that a phase and an amplitude of the combined light are modulated together.