METHOD FOR COATING PHOSPHOR PARTICLES, PHOSPHOR PARTICLE, FLUORESCENT LAMP, AND MANUFACTURING METHOD

摘要

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.