Continuous Arc Projector Light Meter

This is a system for monitoring the light output of an are projector during projection. It comprises a piece of optically flat glass, not silvered, placed in the projector light path, at an angle of 45°, and ahead of the film gate. The light thus thrown off to the side is measured by a photovoltaic light meter.

Print ISSN

0898-042X

Published

1952-07

Content type

Original Research

DOI

10.5594/J01182