Ophthalmic lenses, dioptric formulae for combined cylindrical lenses : the prism-dioptry, and other optical papers
A collection of optical papers by Charles F. Prentice, published in Philadelphia by Keystone in 1907 for opticians and ophthalmologists working with cylindrical lenses and prism measurement. The plates are fine-line engineering diagrams: ray paths through lenses and prisms, lettered construction points, and axonometric drawings of curved lens blanks, useful as sparse technical line work and geometric overlays.
