Illumination device

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United States of America Patent

PATENT NO 12117770
APP PUB NO 20220236692A1
SERIAL NO

17717087

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Abstract

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An illumination device for illuminating a spatial light modulator device. Sub-holograms are used for encoding a hologram into the spatial light modulator device. The Illumination device includes at least one light source for emitting light for illuminating the spatial light modulator device and a beam shaping unit. The beam shaping unit provides a flat-top plateau-type distribution of an absolute value of a complex degree of mutual coherence of the light in a plane of the spatial light modulator device to be illuminated. The flat-top plateau-type distribution of the absolute value of the complex degree of mutual coherence has a shape that is at least similar to a shape of the largest sub-hologram used for encoding of object points into the spatial light modulator device.

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Patent Owner(s)

Patent OwnerAddress
SEEREAL TECHNOLOGIES S A6B PARC D'ACTIVITES SYRDALL MUNSBACH L-5365

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Futterer, Gerald Metten Bayern, DE 44 1218

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