Elementary optics and applications to fire control instruments (1922)
United States. Army. Ordnance Dept · Washington, Govt. Print. Off. · leaf 22
Fir,. 10.—Reversion by a plane mirror. 18 version. If we imagine the drawing, figure 10, to represent aplan view, the arrow viewed from a point P, (with the mirror re-moved) will be seen with the point to the right of the observer. If ABCDEFGHI J … NORMAL IMAGE 3G08^L I HOI
Optics · Optical instruments · Fire control (Gunnery) -- Optical equipment
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