Bauhaus-Universität Weimar

Titel:
The Sciopticon Manual, Explaining Lantern Projections in General and the Sciopticon Apparatus in Particular Including Magic Lantern Attachments, Experiments, Novelties, Colored and Photo-Transparencies, Mechanical Movements, etc.
Person:
Marcy, L. J.
PURL:
https://digitalesammlungen.uni-weimar.de/viewer/image/lit39449/1/
SCIOPTICON MANUAL 
CHAPTER I. 
THE CAMERA OBSCURA. 
A picture formed by rays of light from the several 
parts of an object as seen at A (Fig. 1), is called an 
image ; and the cham¬ 
ber in which it is 
formed, and from 
which all light is ex¬ 
cluded, except what 
enters a small hole 
as at S, is called a 
camera obscura. 
This dark chamber 
claims attention here 
because its properties, which are common to the eye, 
the Sciopticon, and all forms of the camera, are seen on 
a broad scale, and may be readily verified by inexpensive 
experiments. To avoid confusion the pencils of light 
are represented in Fig. 1 without marginal rays need¬ 
ing to be focused by a convex lens. Explaining the fol¬ 
lowing properties in connection with a diagram without 
2
        

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