Method for coating phosphor particles, phosphor particle,...

Details Method for coating phosphor particles, phosphor particle,... Method for coating phosphor particles, phosphor particle,...

H - Electricity

01

J

117/16

H01J 61/42 (2006.01) C09K 11/02 (2006.01) H01J 61/44 (2006.01)

Patent

CA 1277551

ABSTRACT OF THE DISCLOSURE METHOD FOR COATING PHOSPHOR PARTICLES, PHOSPHOR PARTICLE, FLUORESCENT LAMP, AND MANUFACTURING METHOD A method for improving lumen maintenance of fluorescent lamps includes the steps of depositing a continuous aluminum oxide coating on individual particles of a finely-divided fluorescent lamp phosphor to form individually and continuously coated phosphor particles; and applying one or more layers of phosphor to a fluorescent lamp envelope to form a phosphor coated envelope, at least one of the phosphor layers having a phosphor component comprising said individually and continuously coated phosphor particle. The phosphor coated envelope is processed into a finished lamp.

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