GE Global Patent Operation
Coating systems and fluorescent lamps provided therewith
Coating systems suitable for use in fluorescent lamps, particularly as scattering agents within a UV-reflecting coating for the purpose of improving fluorescent lamp luminosity. Such a coating system is provided on a transparent or translucent substrate and includes a phosphor coating and a scattering agent that scatters UV rays. The scattering agent includes an inorganic powder present in a separate UV-reflecting layer adjacent the phosphor coating and/or dispersed in the phosphor coating so that the scattered UV rays are absorbed by the phosphor coating and cause the phosphor coating to emit visible light. The inorganic powder exhibits low or no absorption to UV rays having wavelengths of 185 nm and 254 nm and is not reactive with mercury.
GENERAL ELECTRIC COMPANY
H F B F H F C C F C
H01J F21V B32B F21V H01J F21V C09K C09K F21V C09D
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William Winder Alok Mani Fangming William Erwin
Beers Srivastava Du Cohen