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 25
^M..........± t Fig. 10. … § 14. By substituting, in Fig. 8, for the plane side, a curvature c^ con-centric with C-, the refractive effects of the sections. Fig. 8 and Fig. 9, arevirtually united, as shown in Fig. 10. Owing to the concave curvature c\the incident ray i will assume the direction e^-e, being coincident with…
Lenses · Prisms (Ophthalmology)
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