16—OBSERVATION OF MOVING BODIES BY INTERMITTENT ILLUMINATION
A. W. Stevenson, M. C. Marsh · Journal of the Textile Institute Transactions · 1928
Various types of stroboscope producing synchronous intermittent illumination are reviewed and compared with instruments giving intermittent vision. A type is described in which a focused beam of light is deflected by a revolving mirror and sweeps over the objects under observation. The use of such an instrument has been extended to the observation of aperiodic motions. The technique and limitations of such asynchronous intermittent illumination are given. Various applications are mentioned and comparison made with spark photography and the high-speed cinema.