Light pipe light source with flux condensing light pipe
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United States of America Patent
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-
Feb 15, 2005
Grant Date -
Oct 30, 2003
app pub date -
May 19, 2003
filing date -
Oct 26, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
An optical device for increasing the brightness of electromagnetic radiation emitted by a source by folding the electromagnetic radiation back on itself. The source of electromagnetic radiation has a first width, a first input end of a first light pipe has a second width, and a second input end of a second light pipe has a third width. An output end of the first light pipe may be reflective; while an output end of the second light pipe may be transmissive. The source is located substantially proximate to a first focal point of a reflector to produce rays of radiation that reflect from the reflector and substantially converge at a second focal point; and the input ends of the first and second light pipes are located proximate to the second focal point to collect the electromagnetic radiation.
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