A simple spectrograph designed around a 16-mm movie camera is described. The spectrograph was built for the purpose of obtaining spectrograms from light sources showing transient phenomena, in particular such light sources as the new tpes of rocket and jet combustion engines. The study of the light emitted from an acetylene-oxygen flame as a function of time illustrates its usefulness.
ROBERT C. HERMAN and SHIRLEIGH SILVERMAN, "A Cinema-Spectrograph for Photographing Rapid Spectral Sequences," J. Opt. Soc. Am. 38, 209-210 (1948)