Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 372
ghted) we are enabled tobring the object quite close to the eye and still have the imageof it on the retina distinct. How this is done is shown in Fig. 431. (See also Figs. 396-400.) The object PQ isplaced within the principalfocus F. The image i^q isvirtual, erect and enlarged(see Fig. 397). The… … Fig. 431.—Illustrating the action of the simplemioiosLope. 362 OPTICAL INSTRUMENTS
Physics
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