Living pictures; their history, photoproduction and practical workingWith a digest of British patents and annotated bibliography . in one and the same spot, and remained stationaryduring the whole time they were individually exposedto view, the movement of the lens being neutralised bythe movement of the real object on the other side ofthe cylinder. It will be seen that the distortion commonto all ordinary types of slotted machines was thus doneaway with, and at the same time the images appearedmore brilliant—a wide lens being substituted for anarrow slot. Maxwell used this device for combinin
Living pictures; their history, photoproduction and practical workingWith a digest of British patents and annotated bibliography . in one and the same spot, and remained stationaryduring the whole time they were individually exposedto view, the movement of the lens being neutralised bythe movement of the real object on the other side ofthe cylinder. It will be seen that the distortion commonto all ordinary types of slotted machines was thus doneaway with, and at the same time the images appearedmore brilliant—a wide lens being substituted for anarrow slot. Maxwell used this device for combiningseries of diagrams of many physical phenomena (such as smoke-rings, etc.), in order toshow the resultant movement, butthe apparatus does not seem tohave come into general use. In the year 1877, however, Rey-naud patented a contrivance almost instant popularityunder the name of the Praxino-scope (Fig. 22). In this instru-ment the pictures are not directlyviewed, but are seen in a mirror, the picture underobservation thus being the one nearest the observerinstead of that on the opposite side of the FlO. 22. DIAGRAM ILLUSIONS. 27
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Keywords: ., bookcentury1800, bookdecade1890, booki, booksubjectmotionpictures
