MERCURY ARC LAMP

CD 1964069 E&MP27.032

Electric Lighting

June 4, 1944

New type of mercury arc lamp (above) developed by Lester F. Bird, research engineer of Hanovia Chemical & Mfg. Co., Newark, N.J.

It operates on 85 watts input with specially designed heater coil to permit operation within a wide intensity range of from one to ten.

Furnishing steady light it replaces incandescent lamps previously used.

So flexible is this light, it can be changed instantaneously from low to high intensities and vice versa.  

Original Caption by Science Service
^©Hanovia Chemical & Mfg. Co.