The elements of natural philosophy : copiously illustrated by familiar experiments and containing descriptions of instruments, with directions for using : designed for the use of schools and academies (1856)
Sprague, A. W. (Alfred White), 1821-1891 · Boston : Phillips, Sampson & Company · leaf 310
n such cases remedied in good part ? The course of rays oflight traversing a double-ooncave lens ? Explain Fig. 242. 304 IMAGES FORMED BY LENSES. 1 Tims, the refraction of light by concave lenses correspondsto its reflection bj convex mirrors, both being dispersive intheir effects. So, also, the… … the lens, L L, just without its principal focus, F. The raysproceeding from the point, 0, will be converged by the lens,and form an image at o ; those from 0 will also be converged,and form an image at o; and so each point between 0 0will have its corresponding image between o o. Thus, an…
Physics
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