Grooved optical microstructure light collimating films
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United States of America Patent
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Apr 19, 2005
Grant Date -
Jul 17, 2003
app pub date -
Jan 15, 2002
filing date -
Jan 15, 2002
priority date (Note) -
Expired
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Abstract
A light collimating film includes a sheet having a first side and a second side. The first side can include a series of optical elements and the second side includes a series of stepped plateaus and a series of base planes that run along a first axis. The plateaus and base planes alternate along a second axis and the plateaus have an elevation different than the base planes.
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