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US 2008/0291390 A1Published application
Color Temperature Conversion Element, Color Temperature Conversion Device and Illuminator
AssigneeNikon Corporation
InventorToru Iwane
Life of this patent
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Abstract
A color temperature conversion element includes a diffractive optical element that includes a polymer and a liquid crystal and diffracts light with a specific wavelength in incident light.
Claims19
A color temperature conversion element comprising:
- a diffractive optical element that includes a polymer and a liquid crystal and diffracts light with a specific wavelength in incident light.
A color temperature conversion method, comprising:
- controlling a state of voltage application to a diffractive optical element including a polymer and a liquid crystal;
- and
- selectively diffracting light with a specific wavelength in incident light entering the diffractive optical element in correspondence to the state of voltage application.
Dependencies are inferred from the claim text.