Color Quality of Light of Incandescent Lamps

The advantages of concentrating the source of gas-filled incandescent lamps are discussed, and the various forms available and their application to optical systems and reflectors are shown. — Data regarding the temperature (color and maximum) of the various types of lamps are presented, and the similarity of the radiation of incandescent lamps to that of a Planckian radiator of suitable temperature is indicated. Curves showing the amount of light emitted at various wavelengths or colors for all lamps of interest to the motion picture industry are presented, in terms of both equal visual output and equal wattage. A discussion of the energy in the ultraviolet region and the effect of glass bulbs and lenses concludes the paper.

Print ISSN

0097-5834

Published

1936-09

Content type

Original Research

DOI

10.5594/J01270