Achromatic deviation glass prism from artillary range-finder

Made:
1930-1950 in Glasgow
maker:
Barr and Stroud Limited

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Achromatic glass deviation prism, consisting of two circular notched discs cemented together; from artillary range-finder, 70-cm baseline by Barr and Stroud Limited, Glasgow, Scotland, 1930-1950.

Details

Category:
Optics
Object Number:
1955-320
Materials:
Canada balsam and glass
type:
constant deviation prism
taxonomy:
  • furnishing and equipment
  • tools & equipment
  • optical instrument
  • optical instrument component
  • prism - optical
credit:
Banfield, Arthur Clive