Elementary optics and applications to fire control instruments (1922)
United States. Army. Ordnance Dept · Washington, Govt. Print. Off. · leaf 84
he 4-power panoramic sightand in the larger 4 and 10 power panoramic telescope used on rail-way artillery. Below the optical characteristics of these two in-struments are given: , Instrument. Field ofview. Magnifi-cation. Diameterof exitpupil. Type of eye-piece. Panoramic sight, 4 power 10 158 203… … EYE LENS FIELD LENSRETICULE PORRO PRISMERECTING SYSTEM 05JECTIVE Fig. 77.—Telescopic system of field glass. ers telescope. A perspective view of the optical system of the typeEE binocular is shown in figure 77. The image is erected by Porroprisms. The reticule is in the left-hand telescope. The…
Optics · Optical instruments · Fire control (Gunnery) -- Optical equipment
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