Projection image display device including optical system
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United States of America Patent
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Sep 28, 2021
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N/A
app pub date -
Mar 29, 2019
filing date -
Feb 10, 2016
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Abstract
A projection image display device includes: laser diodes which emit excitation light; a top-hat diffusing element which diffuses and provides the excitation light with a top-hat intensity distribution; a phosphor which emits light when illuminated by the excitation light diffused by the top-hat diffusing element; an integrator rod which homogenizes the light emitted by the phosphor; DMDs which modulate the light homogenized by the integrator rod; and a projector which projects the light modulated by the DMDs.
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