Model of the 'Porro' erecting system for binoculars

Made:
1930-1950 in Europe
maker:
Unknown

Model to illustrate the 'Porro' optical erecting system used in some prism binoculars, unsigned, European, 1930-1950. Consists of two 'Porro' type glass prisms cemented to a thin circular glass disc.

Details

Category:
Optics
Object Number:
1955-321
Materials:
Canada balsam, glass
type:
prism - optical
taxonomy:
  • visual and verbal communication
  • furnishing and equipment
  • tools & equipment
  • optical instrument
  • optical instrument component
credit:
Banfield, Arthur Clive

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