Luminaire device
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United States of America Patent
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-
Sep 8, 2009
Grant Date -
Feb 15, 2007
app pub date -
Oct 18, 2006
filing date -
Mar 23, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
causes light input through the back surface of the layer to be preferentially output into the first layer. A second layer is coupled to the bottom of the first layer and selectively causes output of light into ambient. Additional layers, such as alight polarization layer, a polarization converting layer and a post LCD diffuser layer can be used to make preferential use of polarized light of diffuse light having passed through the LCD layer to enhance viewing of the output light.
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