Illumination – Plural light sources – Particular wavelength
Reexamination Certificate
2008-04-08
2008-04-08
Alavi, Ali (Department: 2875)
Illumination
Plural light sources
Particular wavelength
Reexamination Certificate
active
07354172
ABSTRACT:
Methods and apparatus for controlled lighting based on a reference color gamut that is shared amongst multiple lighting units. A reference color gamut may be determined for multiple lighting units based on spectral power distributions associated with the lighting units. Variable color light or variable color temperature white light subsequently may be generated consistently and predictably amongst multiple lighting units that are each controlled based on the reference color gamut. Lighting commands received by multiple lighting units may be appropriately processed in each lighting unit, based on a predetermined relationship between the lighting commands and the reference color gamut, to ensure consistent and predictable color or color temperature reproduction amongst the multiple units. In one exemplary implementation, the multiple lighting units include LED light sources to facilitate energy efficient generation and versatile control of variable color light or variable color temperature white light, for general purpose illumination and other applications.
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Chemel Brian
Dowling Kevin J.
Morgan Frederick M.
Alavi Ali
Carter William J
Philips Solid-State Lighting Solutions, Inc.
Wolf Greenfield & Sacks P.C.
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