Living pictures; their history, photoproduction and practical workingWith a digest of British patents and annotated bibliography . axinoscope, ov PraxinoscopeTheatre. In 1889 M. Reynaud patented another form of instru-ment, which permitted the employment of much longerseries of pictures. In the previous form the length of theseries was limited by the size of the drum. It will be seenby Fig. 27 that the subsequent method permitted a longband to be wound from one reel to another, passingover a skeleton drum on its way. The principle ofprojection was the same as in the earlier instrument,the perm
Living pictures; their history, photoproduction and practical workingWith a digest of British patents and annotated bibliography . axinoscope, ov PraxinoscopeTheatre. In 1889 M. Reynaud patented another form of instru-ment, which permitted the employment of much longerseries of pictures. In the previous form the length of theseries was limited by the size of the drum. It will be seenby Fig. 27 that the subsequent method permitted a longband to be wound from one reel to another, passingover a skeleton drum on its way. The principle ofprojection was the same as in the earlier instrument,the permanent scene being thrown by a lantern, L;while another source of light, L, projected a beamthrough the picture on to the central drum (of the usual 30 LIVING PICTURES. praxinoscope type) from which it was reflected, themirror M again diverting the Hght through the objectiveO. Another mirror changed the direction of the raysand threw the moving picture on the screen. Anendless band permitted the use of a comparatively longrepeating series, while the length of a non-repeatingscene was only limited by the size of the spools and. Fig. 27. the cost of preparing so large a series of the name, firstly of the Praxinoscope ProjectionTheatre or Optical Theatre^ and subsequently underthat of the Theatrlaxlnoscope, this apparatus appeared—in fact still remains—on the Paris boulevards. Aserious disadvantage of this form of Praxinoscope mustbe referred to. The band is necessarily vertical, the ob-jective sloping. This mihtates against the sharpness ofthe projected pictures, while the light being reflectedfrom the drum, and again diverted by two more mirrors,.all tends to degrade the clearness of the final image on DIAGRAM ILL US IONS. 31 the screen. But even with these imperfections this arrange-ment marks the culminating- point in the development ofthe Praxinoscope type, another form of which instrumentdevised by the same inventor, deserves mention fromits extreme simplic
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Keywords: ., bookcentury1800, bookdecade1890, booki, booksubjectmotionpictures
