Lighting apparatus, lighting method, lighting system and surface information acquisition apparatus
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United States of America Patent
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Issued Date -
Mar 26, 2009
app pub date -
Aug 12, 2008
filing date -
Sep 20, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A lighting apparatus includes a light source and a light beam separating member to separate light emitted from the light source into at least two different directions. The light beam separating member has a light incident plane on which light emitted from the light source is incident and a light output plane from which the light is output after being transmitted through the light beam separating member. In this structure, output light from the light beam separating member is clearly separated. Further, output light from the light beam separating member has characteristics that an angular width of each separated light beam is narrow.
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