North American Philips Corporation

North American Philips Lighting Corp.

William E Wilson

Edward W Morton

Daniel W O'Mullan

Frank M Latassa

A three way lamp having two gas discharge light tubes mounted on the same housing having three terminals arranged thereon as provided on a three-way incandescent lamp.

Three way gas discharge lamp

In a fluorescent lamp having a multi-layer phosphor, a halophosphate-containing layer having color coordinates within an oval centered on X=0.382 and Y=0.384. A rare earth activated phosphor layer has approximately the same color coordinates. The area density ratio of the rare earth and halophosphate-containing phosphor layers is between 0.088 to 0.222 and preferably between 0.088 to 0.133.

Fluorescent lamp having a multi-layer phosphor optimized for lumen

A three way lamp having two gas discharge light tubes mounted on the same housing in a light-transmitting bulb.

Growing community of inventors

Clifton, NJ, United States of America

William E Wilson