Fluorescent lamp with improved cri and brightness

Details Fluorescent lamp with improved cri and brightness Fluorescent lamp with improved cri and brightness

H - Electricity

01

J

H01J 61/44 (2006.01) C09K 11/59 (2006.01) C09K 11/72 (2006.01) C09K 11/77 (2006.01)

Patent

CA 2109163

ABSTRACT OF THE DISCLOSURE A fluorescent lamp has a coating on the interior surface of the glass envelope comprising an alkaline earth metal halophosphate phosphor and a quad-phosphor blend wherein the combination of phosphors result in a predetermined color point from about 2700 to about 4200 K on or near the Planckian locus where the alkaline earth metal halophosphate phosphor comprises a blend of halophosphate phosphors having a color temperature substantially matching the color temperature of the quad- blend which includes an europium activated aluminate as a phosphor component.

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