Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 73
48 VISION WITH THE COMPOUND MICEOSCOPE from the back of the objective, so that the ratio of the seini-diameterof the emergent pencil to the focal length of the objective could beexpressed by the sine of half the angle of aperture (u) 1 multipliedby the refractive index of the medium (n) in front of… … Fig. 32.—Illustration of the law of consequence for aplanatic systems. Let O and O* (fig. 32) be the conjugate aplanatic foci of a wide-angled system; u, TJ the angles of inclination of any two rays admitted 1 In the original translation of the papers of Professor Abbe from German intoEnglish the…
Microscopy
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