OPTICAL DEVICE FOR AN ILLUMINATION DEVICE OF A 3D DISPLAY
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United States of America Patent
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Issued Date -
Jan 17, 2013
app pub date -
Jul 13, 2012
filing date -
Jul 14, 2011
priority date (Note) -
Abandoned
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Abstract
An optical device for directing illuminating light at a pixel matrix and/or at a controllable spatial light modulator of a display, in particular of a stereoscopic or holographic 3D display comprises a multitude of reflection elements which work according to the principle of a concave mirror and which direct the illuminating light at the pixel matrix and/or at the controllable spatial light modulator of the display, and/or comprises at least one transmission element which is designed in the form of a holographic optical element, in particular in the form of a holographic volume grating, which directs the illuminating light at the pixel matrix and/or at the controllable spatial light modulator of the display.
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