| 摘要 |
A light control device has a substrate, a planar electrode, a light modulating film having a refractive index that is changeable in accordance with an electric field applied to the film, and a plurality of electrode segments arranged at a predetermined interval on the light modulating film. A controller applies a control voltage to at least predetermined electrode segments, and the remaining electrode segments and the planar electrode are set to ground potential. This makes the interval of a distribution of electric fields generated in the light modulating film larger than the interval of the electrode segments.
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