Catadioptric light distribution system

Details Catadioptric light distribution system Catadioptric light distribution system

2006-04-18

2006-04-18

O'Shea, Sandra (Department: 2875)

Illumination

Light source and modifier

Including reflector

C362S299000, C362S300000, C362S301000

Reexamination Certificate

active

07029150

ABSTRACT:
A Catadioptric Light Distribution System that collects and collimates the hemispherical pattern of light emitted by a Lambertian light emitting diode (LED) into a collimated beam directed essentially parallel to the optical axis of the LED. The system comprises a circular condensing lens having a center axis that is aligned with the optical axis of the LED parabolic reflector having circular opening formed therethrough which is centered on the center axis of the parabolic reflector and a double bounce mirror. The light reflected and culminated by the parabolic reflector is directed onto the circular annular double bounce mirror so that this light is collimated in an annular beam which passes around the edge of the condensing lens.

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