Optical apparatus including a liquid crystal modulator

Optical: systems and elements – Holographic system or element – Using a hologram as an optical element

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359 3, 359 6, 359 9, 359 10, 359 11, 359 30, 359 40, 359 93, G02F 1133, G02F 108, G02F 110, G03H 102

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054972540

ABSTRACT:
An optical apparatus for controlling a wave front of a coherent light including at least a coherent light source, an electrically addressable liquid crystal device having a plurality of pixels receiving the light from said light source, and a signal generator for recording a complex amplitude distribution or hologram on the liquid crystal device.

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