. The Bell System technical journal . Fig. 3—Interior view of camera. 398 BELL SYSTEM TECHNICAL JOURNAL use in high speed photography. The camera has been adapted touse standard amateur 16 millimeter motion picture film and the com-mercial processing service of the film supplier is used. High-speedmotion pictures in color are readily made, utilizing available films andprocessing. kr^ i,*-t. Fig. 4—Camera with portable lighting units used for high speed work. The optical intermittent type of camera has certain advantages overother types. The unit is self-contained and is independent of lighting
. The Bell System technical journal . Fig. 3—Interior view of camera. 398 BELL SYSTEM TECHNICAL JOURNAL use in high speed photography. The camera has been adapted touse standard amateur 16 millimeter motion picture film and the com-mercial processing service of the film supplier is used. High-speedmotion pictures in color are readily made, utilizing available films andprocessing. kr^ i,*-t. Fig. 4—Camera with portable lighting units used for high speed work. The optical intermittent type of camera has certain advantages overother types. The unit is self-contained and is independent of lightingequipment. It can be made relatively light in weight and highlyportable. Further, it can be applied to the study of self-luminoussources as required in the study of arc lamps, lamp burnouts, fuseburnouts and other problems where the phenomena under investigationare self-luminous. HIGH SPEED MOTION PICTURE PHOTOGRAPHY 399 High speed motion picture photography is finding extensive apphca-tion in industry where it is appHed to motion analysis of a varietyof manufacturing operations and to problems associated with thedesign and performance of machinery. A particular value of thismethod of motion analysis lies in the convenience and accuracy withwhich space-time relationships of moving parts can be frames can be enlarged as photographic paper prints orprojected on
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
