OPTICAL DEVICE FOR REDIRECTING INCIDENT ELECTROMAGNETIC WAVE
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United States of America Patent
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Issued Date -
Apr 30, 2015
app pub date -
May 30, 2014
filing date -
Oct 25, 2013
priority date (Note) -
Abandoned
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Abstract
An optical device for redirecting an incident electromagnetic wave includes an interference region having a first side and a second side opposite to the first side; a grating structure arranged on a third side of the interference region; a mirror arranged at the first side. An incident electromagnetic wave is impinged into the interference region through the second side or through the grating structure or through a side opposite to the grating structure, and then a substantial portion of the incident electromagnetic wave leaves the interference region at a predetermined angle with respect to the incident direction.
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