Spatial image projection apparatus
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United States of America Patent
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Aug 29, 2017
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N/A
app pub date -
Oct 6, 2015
filing date -
Oct 6, 2014
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Abstract
A spatial image projection apparatus including a receiver configured to receive an image signal; a display unit configured to display an image acquired by processing the image signal; a projection unit configured to project a spatial image to a prescribed space by reflecting light corresponding to the image displayed on the display unit. Further, the projection unit includes a plate having a first surface facing the display unit and a second surface opposite to the first surface; and a protrusion arranged on the first surface or the second surface of the plate. In addition, the protrusion includes first and second slopes tilted at about 45 degrees relative to the surface of the plate, and an angle between the first and second slopes is about 90 degrees.
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