Handbook of optics for students of ophthalmology (1899)
Souter, William Norwood, 1961-1935 · New York, Macmillan · leaf 188
The phenomena of reflexion, so far as they con-cern the ophthalmologist, are exceedingly simple. The illumination of the interior of the eye is ac-complished by means of a mirror, which reflects lightfrom a flame, while the observer is so situated as to 177 178 HANDBOOK OF OPTICS be in the patli of… … Fig. 48. lamp from the mirror. This is illustrated in Fig. 48.It can easily be proved that the angles A and A! areequal. If a concave mirror is used, the light appears tocome from a point in front of the mirror. This wededuce from equation (a), page 30. If we make nequal to minus 1 in this…
Eye · Lenses
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