Spatial light modulator using electrowetting cells
AssigneeSeeReal Technologies S.A.
InventorsGerald Futterer, Stephan Reichelt
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Abstract
A spatial light modulator for modulating light field amplitude comprises a surface relief grating adapted to act as a diffractive lens, where a material is used to fill at least one groove of a surface grating structure, such that a controllable refractive index birefringence of the material inside the surface relief grating is controlled by an electric field, which leads to a controllable intensity at a fixed focal point.
Claims19
A spatial light modulator for modulating light field amplitude comprising a surface relief grating adapted to act as a diffractive lens, where a material is used to fill at least one groove of a surface grating structure, such that a controllable refractive index of the material inside the surface relief grating is controlled by an electric field, which leads to a controllable intensity at a fixed focal point of the diffractive lens.
Dependencies are inferred from the claim text.