Beam-splitter glass prisms from artillery range-finder

Beam-splitter glass prisms in steel mount from artillery

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Beam-splitter glass prisms in steel mount from artillery
Science Museum Group
© The Board of Trustees of the Science Museum

Beam-splitter glass prisms in steel mount from artillery range-finder with 5-foot baseline, by Barr & Stroud, Glaasgow, Scotland, 1912-1950.

Details

Category:
Optics
Object Number:
1955-338
Materials:
stainless steel, brass (copper, zinc alloy) and glass
Measurements:
overall: 47 mm x 64 mm x 75 mm, Wt. 0.375kg
type:
porro–abbe prism and component - object
credit:
Banfield, Arthur Clive