Blue incandescent general purpose lamp

Details Blue incandescent general purpose lamp Blue incandescent general purpose lamp

H - Electricity

01

K

H01K 1/32 (2006.01)

Patent

CA 2428153

An electric lamp (10) which emits a blue color when energized and which comprises a light transmissive envelope (12) enclosing an electric light source (16) within, said envelope (12) having a surface (11) on which is a coating comprising precipitated silica, aluminum silicate pigment, manganese ammonium pyro phosphate and cobalt aluminate spinel. The lamp is useful for general household illumination and provides pleasing skin tones.

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