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US 6,642,913 B1Granted
Light modulation element, exposure unit, and flat-panel display unit
AssigneeFuji Photo Film Co., Ltd.
InventorsKoichi Kimura, Mitsuru Sawano
Life of this patent
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Abstract
A light modulation element which has a light guide body 11 for guiding light from a light source and a flexible thin film 12 having a phosphor 13 being provided facing the light guide body 11. The distance between the flexible thin film 12 and the light guide body 11 is changed by the electromechanical operation and light emission of the phosphor 13 excited by the guided light is controlled.
Claims23
A light modulation element comprising:
- a light guide body for guiding light from a light source, and
- a flexible thin film having a fluorescent material being formed opposing to said light guide body, wherein;
- distance between said flexible thin film and said light guide body is changed by electromechanical operation so that light emission of the fluorescent material being excited by the guided light is controlled.
Dependencies are inferred from the claim text.