The optical lantern, for instruction and amusement (1890)
Pringle, Andrew · New York, The Scovill & Adams Company · leaf 80
if tilting the screen is inconvenient, mounting a ladder to see into our lantern is ten times worse. A business-like stand is shown in Fig. 34. But the kind of stand used in a photographic studio for carte and cabinet cameras answers very well. Such a stand, however, can hardly be called very… … Fig. 35. " Carriers " may be described as guides by means of which slides are passed through the part of the lantern in front of the condenser. It is important that slides should pass smoothly into and out of their position in the light-way, each slide must find the central position at once without…
Lantern projection
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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