Light modulation element and information recording medium
AssigneeDai Nippon Printing Co., Ltd.
InventorsTsuyoshi YAMAUCHI, Mitsuru KITAMURA, Nobuko OIKAWA
Life of this patent
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Abstract
An optical member utilizing light from a point light source is enabled to visually perceive a reproduced optical image with a desired color. An optical modulation device includes an optical member having a light control part to reflect or absorb light in a predetermined wavelength and to pass through light in other than the predetermined wavelength in light in at least a visible light band, in accordance with a reproduction reference image for reproducing an original image, and a light transmissive part to pass through light in at least the visible light range including the predetermined wavelength.
Claims23
-22. (canceled)
A light modulation element comprising an optical member, the optical member comprises:
- a light control part to reflect or absorb light in a predetermined wavelength and to pass through light in other than the predetermined wavelength in light in at least a visible light range in accordance with a reproduction reference image for reproducing an original image;
- and
- a light transmissive part to pass through light in at least the visible light range including the predetermined wavelength.
Dependencies are inferred from the claim text.