IMAGE DISPLAY APPARATUS AND NON-PLANAR SCREEN
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United States of America Patent
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Issued Date -
Apr 23, 2015
app pub date -
Sep 18, 2014
filing date -
Oct 22, 2013
priority date (Note) -
Abandoned
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Abstract
To obtain images with a higher ANSI contrast compared to that of the related art. A hemispherical hologram screen includes a hologram recording medium arranged on a projection surface. The hologram recording medium records a hologram recording image having diffusion characteristics to diffuse the projection image light that is incident on the hologram recording medium as a first diffusion light in a predetermined angle range towards an area range where a viewer is present, the viewer observing an image from the non-planar screen. A hemispherical hologram screen reproduces the hologram recording image from the hologram recording medium using the projection image light as a reference light to emit the first diffusion light.
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