Journal of the Society of Motion Picture Engineers (1930-1949)

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Fig. 7. 10X enlargement of photograph showing exploding primacord. tion of the object being examined is of no importance. Somewhat slower models of the camera (with even better space resolution) can undoubtedly be used to obtain reflected light photographs of objects illuminated by the highintensity gas-discharge lamps. The camera is rugged in construction and can be readily moved about. It has been found that the sequence of 50 to 100 frames obtained is quite adequate for the studies so far encountered. References and Notes 1. W. D. Chesterman, The Photographic Study of Rapid Events, Clarendon Press, Oxford, England, 1951, p. 54. 2. C. D. Miller, "Half-million stationary images per second with refocused revolving beams," Jour. SMPE, 43: 479, Nov. 1949. 3. J. S. Stanton and M. D. Blatt, "Bowen 76-lens camera," NAVORD Report 1033, 1948. 4. The perfection of this rotating mirror drive is largely due to the efforts of W. E. Buck, Los Alamos Scientific Laboratory of the University of California, Los Alamos, N.M., with considerable assistance by Prof. J. W. Beams, University of Virginia, during the initial development stage. 5. The use of diamond stops was suggested by T. E. Holland, Los Alamos Scientific Laboratory of the University of California, Los Alamos, N.M. 6. W. E. Deal and R. G. Shreffler, "Free surface properties of explosive driven metal plates," Phys. Soc., Salt Lake City, Utah, June 27, 1952. 510 December 1952 Journal of the SMPTE Vol. 59