Achromatic deviation glass prism from artillary range-finder
- maker:
- Barr and Stroud Limited
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Science Museum Group
© The Board of Trustees of the Science Museum
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:
- glass and Canada balsam
- Measurements:
-
overall: Dp.5 mm x Dia. 25 mm, Wt. 0.119kg
- type:
- constant deviation prism and component - object
- credit:
- Banfield, Arthur Clive
