Modern magic lanterns; a guide to the management of the optical lantern (1900)

Page scan 000119 from Modern magic lanterns; a guide to the management of the optical lantern

Record Details:

Title:
Modern magic lanterns; a guide to the management of the optical lantern
Date:
1900
Publisher:
London, Gill, New York, Scribner's
Volume:
Modern magic lanterns; a guide to the management of the optical lantern
Leaf #:
000119
Language:
English
Collection:
Books
Format:
Books
Contributor:
Cornell University Library
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
Date Added:
July 19, 2022
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CHAPTER XVI. animateb lantern pictures. In the beginning of 1896 a novelty in lantern work was first shown in London in the form of Mr. Birt Acres' Kinetic Lantern, as it was then called, by which street scenes and other moving objects were displayed, on the screen in motion with a fidelity which was very remarkable. Almost immediately afterwards a number of other inventors were in the field with instruments for performing the same operation, and animated lantern pictures under aU sorts of Greek and Latin names were quite the sensation of the moment. The principle underlying all suoh projections is that known as "the persistence of vision." When an image falls upon the retina of the eye, no matter for how short a time, provided it is sufficiently brilliant to excite the sensa- tion of vision at aU, the result is not a mere momentary impression, but one more or less prolonged. It seems to take an appreciable time before the sensation of seeing has again departed. Hence, if a series of pictures lq rapid succession are allowed to fall upon the eye, provided the interval between each is sufficiently short in duration, the pictures combine into one continuous impression. If we look at a rapidly revolving wheel, the spokes no longer appear as single objects, but merge iato a semi-transparent disc. If a briDiant point of light is rapidly revolved, it appears no longer as a point, but as a circle. These and the Aerial Graphoscope of Mr. Eric Stuart Bruce, in which the lantern pictures are thrown upon a whitened lath