US Patent 7209279 Phase modulating apparatus and phase modulating method

Patent 7209279 was granted and assigned to Hamamatsu Photonics on April, 2007 by the United States Patent and Trademark Office.

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Norihiro Fukuchi0

Yasunori Igasaki0

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Patent abstract

An adder unit (60e) reads a desired CGH pattern from a pattern memory unit (60a) and a phase distortion correction pattern from a distortion-correction pattern memory unit (60d) and adds both patterns together to generate a phase distortion corrected pattern. A control unit (60g) controls a phase modulation module (40) in accordance with the phase distortion corrected pattern. Accordingly, phase-modulated light based on the desired phase pattern can be generated precisely, easily and quickly.

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