Multilayer reflector with selective transmission
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United States of America Patent
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Mar 27, 2001
Grant Date -
N/A
app pub date -
Nov 25, 1998
filing date -
Nov 25, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In a multilayer dielectric reflector, treating the surface of the reflector selectively increases the amount of light transmitted through the reflector. Various surface treatments can be used to permit light to transmit through the reflector that would otherwise be reflected by the reflector. In one such reflector, different portions of the surface have different coupling efficiencies for coupling light having a high propagation angle into the multilayer reflector. Those portions having higher coupling efficiencies on each side of the reflector have a higher degree of transmission.
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