Progress in Projection Lighting

The carbon arc has had an important part in the progress of the motion picture industry from the time of its origin to the present day. This narrative of the various improvements and developments which have kept the carbon arc in its preferred position as a source of projection light is presented in chronological sequence. Data are given relative to the progress made along five lines of improvement: intrinsic brilliancy of the crater, quality of light produced, volume of light on the screen, efficiency of light production, and economy of operation.

Print ISSN

0097-5834

Published

1940-07

Content type

Original Research

DOI

10.5594/J10066