LED illuminator with retro reflector

Details LED illuminator with retro reflector LED illuminator with retro reflector

2007-11-27

2007-11-27

Sember, Thomas M. (Department: 2885)

Illumination

Plural light sources

Particular wavelength

C362S084000, C362S551000, C362S555000

Reexamination Certificate

active

11593965

ABSTRACT:
An illuminator with blue and red LEDs, a reflector upstream of the LEDs for capturing upstream light emitted out of the back surfaces of the LEDs and redirecting downstream as useful illumination, a band pass filter for conditioning the downstream light, a phosphor layer for changing the spectral properties of light from the LEDs, and a non-imaging concentrator for creating a beam of illumination over a predetermined solid angle, uniformity, and spectral content.

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