A New Light Control for Printing Machines

This paper describes a new device for automatically controlling the intensity of the printing light so that the successive scenes of each print receive the respective exposures that have been previously assigned to them. By means of a keyboard having numbered keys corresponding to twenty-four light intensity steps, the control can be rapidly set for a negative having as many as one hundred and sixty scenes. A recording indicator enables a quick check-up with the timing card, and facilitates an accurate control of printing.

Print ISSN

0097-5834

Published

1932-07

Content type

Original Research

DOI

10.5594/J05500