Handbook of optics for students of ophthalmology (1899)
Souter, William Norwood, 1961-1935 · New York, Macmillan · leaf 66
s proceed. Similarly, rays whichare parallel to the axis after refraction, do not comefrom a real point; but before refraction they are 5G BANDBOOK OF OPTICS directed toward a point on the axis and on the opposite side of the lens to that from wliieli the Lightproceeds. 1 nils we see that in the… … Fig. 19. which is turned toward incident Light is the frontof the lens. In Fig. 19, (1) represents the action of a convexlens, (*J) represents the action of a concave lens.All rays from 0, the anterior foens of the convexlens, arc after refraction parallel to the axis; allrays, which before…
Eye · Lenses
Internet Archive · Medical Heritage Library · Public Domain Mark 1.0. Free to use for anything.
