Method and apparatus for producing untainted white light...

Details Method and apparatus for producing untainted white light... Method and apparatus for producing untainted white light...

2006-06-27

2006-06-27

O'Shea, Sandra (Department: 2875)

Illumination

Plural light sources

Particular wavelength

C362S231000, C362S236000, C257S103000, C313S498000

Reexamination Certificate

active

07066623

ABSTRACT:
A white light emitting device by using off-white light emitting diodes (LED's). Rather than using just pure white LEDs, the white light emitting device arranges those LEDs which exhibit off-white colors in a manner such that the combination of light emanating from these off-white LEDs produces a radiation which appears substantially pure white to the human eye.

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patent: 5998925 (1999-12-01), Shimizu et al.
patent: 6513949 (2003-02-01), Marshall et al.
patent: 6672734 (2004-01-01), Lammers
patent: 6794686 (2004-09-01), Chang et al.
patent: 2003/0156425 (2003-08-01), Turnbull et al.
patent: 2004/0105261 (2004-06-01), Ducharme et al.
patent: 2004/0120140 (2004-06-01), Fye et al.
patent: 2005/0093422 (2005-05-01), Wang et al.

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