Ophthalmic lenses, dioptric formulae for combined cylindrical lenses : the prism-dioptry, and other optical papers (1900)
Prentice, Charles Frederick, b. 1854 · Philadelphia : Keystone · leaf 21
rsection with the perpendicular in c^ establishing the direction of thefinal ray, /. As p^ and p- are parallel from the construction it follows that the ray / isparallel to i, and therefore of the same direction. PRISMS. § 5. Pursuant to the spirit of our intention to avoid mathematical for-mulae,… … Fig. 3. Specifically, we shall select two right-angled prisms of varying angles,a* and a, with the rays i^ and i incident perpendiculary to the verticalsides a^h^ and a^h^, so as to avoid refraction on the incident sides, as shownin the vertical sections, Fig. 2 and Fig. 3, respectively. At e- and…
Lenses
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
