Elements of natural philosophy (Volume 2-3) (1850)
Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 212
o-Convex, concave side to incident light. ? <^ x\ + 7*. + V* ^ Same, reversed, . . r > t\ — r, — T! Characteristics(j\\ of the variouslenses. § 44. To discuss the properties of any one of these Discussion of the properties of any lenses, resume leng Equation (33), de- Fi-26- termine the sign… … 204 NATURAL PHILOSOPHY. Double convex § 45. As an example, let us take the double convex lens taken as an -i . lens. example; Equation (33), is Generalequation; / ff JL 1 F. f n Value forreciprocal ofprincipal focaldistance; and, Equation (30), and Table (A\ m — 1 F. u — m—l(- + _), and as long as…
Mechanics · Acoustics · Optics
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