Living pictures; their history, photoproduction and practical workingWith a digest of British patents and annotated bibliography . y be formed; and these images will be separated ^1 fiffffclL -^^ proportion to the move- 11 III ment of the object. This method is all-sufficient for the\^/ analysis of motion, but the _Jtl,,_ results have anything but a popular aspect; the differentim^ages frequently consist innothing but lines and dotsrepresenting rods and beads attached to a black-robedsubject, who when fully equipped appears to be underthe hands of a surgeon rather than those of a photo-grapher
Living pictures; their history, photoproduction and practical workingWith a digest of British patents and annotated bibliography . y be formed; and these images will be separated ^1 fiffffclL -^^ proportion to the move- 11 III ment of the object. This method is all-sufficient for the\^/ analysis of motion, but the _Jtl,,_ results have anything but a popular aspect; the differentim^ages frequently consist innothing but lines and dotsrepresenting rods and beads attached to a black-robedsubject, who when fully equipped appears to be underthe hands of a surgeon rather than those of a photo-grapher. Much work was done on these lines, indeed hasbeen continued up to the present day; but such pictures,valuable as they are for the physiological informationthey impart, are in no sense suited for the reconstitutionof the movement of which they form the elements, andmuch time elapsed before attempts were made to secureseparate and distinct photographs of the phases of agiven motion. Had a flexible surface been available,no doubt progress would soon have been made ; indeed,the necessity of separating the images was felt and a. Fig. ;8. CHRONO-PHOTOQRAPHY. b1 longer plate, shifting between each exposure, method of separating the images was to inter-pose a revolving mirror between lens and object. Thisarrangement is interesting from the fact that it hasrecently been suggested to use the same device in areverse manner, causing it to project separated pictureson to one place on the screen, while the originalarrangement gave separated pictures on the plate froman original which remained in one place. It cannotbe postulated too emphatically that, even at this earlydate, nothing was required but a flexible and transparentfilm, capable of receiving an emulsion of increasedsensitiveness, in order that the modern living picturemight spring into existence; but twenty years werefated to elapse before these necessities were placed atthe disposal of the photographic world. Th
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Keywords: ., bookcentury1800, bookdecade1890, booki, booksubjectmotionpictures
