Elementary optics and applications to fire control instruments (1922)
United States. Army. Ordnance Dept · Washington, Govt. Print. Off. · leaf 22
NORMAL IMAGE 3G08^L I HOI … REVERTED IMAGE Fig. 11.—Normal and reverted images. the image in the mirror is viewed from P,, the point is to the left.A clear idea of reversion may be obtained by viewing the image ofprinted matter in a mirror. This is illustrated in figure 11.^ Witha single reflection the letters are reverted.…
Optics · Optical instruments · Fire control (Gunnery) -- Optical equipment
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