Handbook of optics for students of ophthalmology (1899)
Souter, William Norwood, 1961-1935 · New York, Macmillan · leaf 61
rive //(// + >»/,)_ r_f< fifitf+nO r fi from which f(.A+nf^_1. W + iO or, ffi + nffi =/i/ + nffv andj^i =/i/- REFRACTION THROUGH LENSES 51 o ffTherefore the equation — = ^-V becomes o = zv, which shows that object and image are equal whenthey lie in the planes perpendicular to the axis at… … Fig. 17. of refraction. A ray of light RRf meets the firstsurface at R. It is directed toward P, but beforereaching P, it is refracted at R\ so as to assume thedirection RR ; at R it is again refracted so thatits direction on leaving the lens is RR. If RRnbe prolonged backward, it will meet the…
Eye · Lenses
Internet Archive · Medical Heritage Library · Public Domain Mark 1.0. Free to use for anything.
