Handbook of optics for students of ophthalmology (1899)
Souter, William Norwood, 1961-1935 · New York, Macmillan · leaf 37
ore n.g=».|| 26 n REFRACTION AT SPHERICAL SURFACES 27 The ray PA is normal to the spherical surface atA; hence it will undergo no deviation, but will con-tinue in the same straight line, PAQ. This line is called the axis of the refracting sur-face. The ray which meets the surface at R meetsthe axis… … that this will not be so. If the arc AB be revolvedaround the axis, a portion of a sphere will be gener-ated, and all rays meeting this surface at the distanceAR from the axis will meet at Q. If we take the rayswhich meet the spherical surface at a distance AR,they will not meet the axis at Q. The…
Eye · Lenses
Internet Archive · Medical Heritage Library · Public Domain Mark 1.0. Free to use for anything.
