clearness, thisdistance is somewhat exaggerated. Draw a pencil of raysdiverging from q and falling on the pupil of the eye. Producethese rays back to meet the mirror in R, R. Join RQ andKQ, then the pencil QR, QR is reflected stT as to convergeto q, and after diverging from q reaches the eye,… … Fig. 77.by which a virtual image is seen. 106 LIGHT. [CH. V If the incidence be oblique, the image is not formed at thegeometrical focus, but a discussion of its position would carryus beyond our limits. 65. To use a mirror to produce a pencil ofparallel rays. A pencil of rays falling on a mirror…
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