Three-dimensional image projector, three-dimensional image projection method, and three-dimensional image projection system
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United States of America Patent
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Dec 6, 2016
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app pub date -
Sep 13, 2012
filing date -
Oct 14, 2011
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Abstract
A three-dimensional image projector includes: a conversion optical system including a plate-shaped first optical member that has an incidence surface is incident, and an emission surface and that converts a traveling direction of the image light so as to form a predetermined angle between the emission surface and an emission direction of the image light on the emission surface; a rotary driving unit that drives the conversion optical system so as to rotate along the emission surface with a predetermined point on the emission surface as the center of rotation; and an image projection unit that is erected along a rotation axis, converts the traveling direction of the image light emitted from the conversion optical system into a first direction along a surface crossing the rotation axis, and diffuses the image light emitted from the conversion optical system in a second direction along the rotation axis.
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