Brewster, David, Sir, 1781-1868, Bache, A. D. (Alexander Dallas), 1806-1867 · Philadelphia : Lea and Blanchard · leaf 390
three fourths of the longitudinal abei-ration of theextreme ray, and that the radius of the same circle is one fourthof the lateral aberration of the extreme ray. Spherical Aberration of Lenses. (97.) In this investigation we begin by determining the aberra-tion produced by a single surface. We… … Let the ray RL fall upon the spherical surface ZFat any pointL, and be refracted into the direction LM. Continue LM until itintersects the axis of the surface, at F. Draw the radius CL.Call m the ratio of the sine of incidence to that of refraction, inthe passage of the ray from the rarer to the…
Optics
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