Design Improvements in High-Wattage Tungsten Filament Lamps for Motion-Picture and Television Studios

The development of a special-type collector grid for use in high-wattage incandescent lamps used for motion-picture studio lighting is discussed. The collector grid is designed to maintain the beam lumen output of such lamps at a high level until filament failure occurs. Causes and effects of lamp blackening are explained.

Print ISSN

0361-4573

Published

1958-08

Content type

Information

DOI

10.5594/J11109