Nonimaging optical illumination system
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United States of America Patent
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Dec 17, 1996
Issued Date -
N/A
app pub date -
Apr 28, 1993
filing date -
Jul 19, 1991
priority date (Note) -
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Abstract
A nonimaging illumination optical device for producing a selected far field illuminance over an angular range. The optical device includes a light source 102, a light reflecting surface 108, and a family of light edge rays defined along a reference line 104 with the reflecting surface 108 defined in terms of the reference line 104 as a parametric function R(t) where t is a scalar parameter position and R(t)=k(t)+Du(t) where k(t) is a parameterization of the reference line 104, and D is a distance from a point on the reference line 104 to the reflection surface 108 along the desired edge ray through the point.
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