Illumination – Edge lighted panel – Light guide
Reexamination Certificate
2003-10-28
2008-09-16
Alavi, Ali (Department: 2875)
Illumination
Edge lighted panel
Light guide
C362S615000, C362S616000, C362S019000
Reexamination Certificate
active
07425089
ABSTRACT:
An illumination device according to the present invention includes a light source; and a lightguide element including an incidence surface for receiving light emitted from the light source and an outgoing surface from which the light incident from the incidence surface goes out. The lightguide element includes a polarization selection layer for causing light of a specific polarization direction (first polarized light), among the light incident from the incidence surface, to selectively go out from the outgoing surface, and a polarization conversion layer for converting second polarized light, polarized in a different direction from that of the first polarized light, into the first polarized light. The polarization selection layer reflects the first polarized light substantially only toward the outgoing surface.
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Alavi Ali
Dzierzynski Evan
Sharp Kabushiki Kaisha
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