The clinical use of prisms; and the decentering of lenses (1893)
Maddox, Ernest Edmund, 1860-1933 · Bristol : J. Wright ; London : Simpkin, Marshall, Hamilton, Kent · leaf 181
ncrease inmagnitude with each departure from zero. Thefollowing table (Table X.) of natural sines andtangents is inserted only for convenience, to savereference to a book of mathematical tables whichmay not always be at hand. The column of sinesmay be used for resultant prisms, and the columnof… … Fig. 69. prism in the plane of a principal section. Then,whatever be the angle of incidence (/), the totaldeviation (d) is the sum of the deviations at the twosurfaces, so that (1) d = w + v. APPEXD1X. 161 TABLE X. (SIXES AXD TAXGEXTS.) Degrees. Sines. Tangents. Degrees. Sines. Tangents. 1° •01745…
Lenses
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