LED illumination system
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United States of America Patent
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Aug 24, 2010
Grant Date -
May 29, 2008
app pub date -
Nov 26, 2007
filing date -
Nov 24, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An LED illumination system comprising an LED light source (3) which emits light (8) in a main direction (9) and a first optical element (1), a second optical element (2) is arranged downstream of the first optical element (1) in the main direction (9), and the second optical element (2) has on a light entrance surface (6) which faces the LED light source (3) a surface structure (4) that comprises a plurality of pillow-shaped prominences (5).
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