Light pipe light source with flux condensing light pipe

Details Light pipe light source with flux condensing light pipe Light pipe light source with flux condensing light pipe

2005-02-15

2005-02-15

Ward, John Anthony (Department: 2875)

Illumination

Light source and modifier

Including reflector

C362S305000, C362S556000, C362S268000, C362S298000, C362S346000

Reexamination Certificate

active

06854864

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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