Ophthalmic lenses, dioptric formulae for combined cylindrical lenses : the prism-dioptry, and other optical papers (1907)
Prentice, Charles F. (Charles Frederick), b. 1854 · Philadelphia : Keystone · leaf 20
ular p^has a greater tendency to parallelism with the horizontal line /i° than />*.8uch parallelism being realized—when a- c^ is parallel to (r h- or a^ = 0°—would result in the value s^ vanishing in the incident ray i~, and s in thefinal ray f-, by virtue of the decrease of the angles of… … § 6. In general we may therefore be permitted to assume that the greaterthe angle, a, of obliquity of the surfaces (Fig. 4) the greater will be the de-flection of the final ray f, and the closer to the base he of the prism will beits intersection n with the horizontal line h^. In looking through a…
Lenses · Prisms (Ophthalmology)
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