Picture Generating Unit
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Dec 5, 2024
app pub date -
May 24, 2024
filing date -
May 24, 2024
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Abstract
A picture generating unit comprises a display device arranged to display a hologram of a picture; and spatially modulate light in accordance with the displayed hologram to form a holographic reconstruction of the picture on a replay plane. The holographic reconstruction comprises a picture area and a non-picture area. The picture generating unit comprises an active mask in or downstream of the replay plane, the mask comprising a propagation area arranged to allow propagation of light along a projection axis, and a non-propagation area arranged to prevent propagation of light parallel to the projection axis. The propagation area and the non-propagation area share a boundary adjustable to change one or more physical parameters of the propagation area. The picture generating unit further comprises a drive means arranged to adjust the boundary to change the one or more physical parameters of the propagation area.
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