Holographic display apparatus for providing expanded viewing window
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United States of America Patent
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Aug 30, 2022
Grant Date -
Nov 5, 2020
app pub date -
Jul 16, 2020
filing date -
Feb 19, 2018
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Abstract
A holographic display apparatus for providing an expanded viewing window includes a spatial filter configured to separate a plurality of holographic images generated by the hologram pattern displayed on the spatial light modulator from a plurality of lattice spots generated by a physical structure of the spatial light modulator. The spatial filter includes a plurality of color filters or a plurality of dichroic mirrors separating a first color image, a second color image, and a third color image from a first color lattice spot, a second color lattice spot, and a third color lattice spot.
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