| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a spatial light modulation device, which can reduce a required memory capacity, can be easily manufactured and can enhance accuracy of an applied voltage value with respect to a desired phase modulation amount, and to provide a spatial light modulation method. <P>SOLUTION: A spatial light modulation device 1A includes: a liquid crystal layer 12 modulating phases of incident light in accordance with the intensity of an applied electric field; a temperature sensor 17 generating a temperature signal Stemp, which is a signal in accordance with the temperature of the liquid crystal layer 12; a plurality of pixel electrodes 13a respectively provided in a plurality of pixels and applying a voltage to the liquid crystal layer 12 to generate an applied electric field; and a drive device 20A providing a voltage to the plurality of the pixel electrodes 13a. The drive device 20A includes a nonvolatile memory element 23 storing a coefficient α included in a function that represents correlation between a temperature change amount of the liquid crystal layer 12 with respect to a reference temperature T0 and a variation in a phase modulation amount in the liquid crystal layer 12, and computes to correct a voltage value by using the temperature indicated by the temperature signal Stemp and the coefficient α. <P>COPYRIGHT: (C)2012,JPO&INPIT |
