Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 45
cover-glass to appear as ifthey diverged from X. Therefore, in consequence of the cover-glass,the objective has to deal with ravs radiating apparently from tiro dis- 0 2 20 ELEMENTARY PRINCIPLES OF MICROSCOPICAL OPTICS tinct points, X and Y. If there were no cover-glass all the rays woulddiverge… … Fig. 21.—The effect produced by a cover-glass on the corrections of an object-glass. that all the rays passing through a lens system are brought to an identi-cal conjugate focus, as shown in fig. 22. But as affected by the cover-glass the marginal rays diverge, apparently, from a focus nearer…
Microscopy
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
