Millikan, Robert Andrews, Gale, Henry Gordon · Boston : Ginn and Co. · leaf 450
RUMENTS 391 451. The projecting lantern. The projecting lantern is essen-tially a camera in which the position of object and image havebeen interchanged; for m the use of the camera the object isat a considerable distance, and a small inverted image is formedon a plate placed somewhat farther from… … Fig. 426. Tlie ^jrujectiiig lantern (stereopticon) a distant screen *S. In both instruments the optical part issimply a convex lens, or a combination of lenses which isequivalent to a convex lens. The object P, whose image is formed on the screen, is usu-ally a transparent slide which is…
Physics
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