Gte Products Corporation

Joseph A Roy

Fred R Taubner

Frank M Latassa

John G Ray

Lumen maintenance of fluorescent lamps is improved by overcoating the phosphor layer with a coating of submicron size alumina having a weight greater than 160 micrograms per square centimeter.

Arc discharge lamp having improved lumen maintenance

A fluorescent lamp has two phosphor layers, the phosphor of the first layer being less expensive than the phosphor of the second layer. The second phosphor layer improves the lamp efficiency.

Fluorescent lamp having double phosphor layer

A glass mercury dispenser for inclusion within an arc discharge lamp is surrounded by a particle shield to catch shards when the capsule is subsequently ruptured.

Growing community of inventors

Danvers, MA, United States of America

Joseph A Roy