Zogroscope
Zogroscope
- Description
- This device, also known as an optical diagonal machine or cosmorama, was designed for magnifying prints so they could be seen more easily. It has a convex lens mounted in a square wooden frame that, in turn, is supported on a pedestal. A second frame, hinged at the top, holds a mirror that can be held out at any desired angle. Zograscopes came into use in the eighteenth century and remained popular throughout the nineteenth century.
- Ref: J. A. Caldecott, “The Zogroscope or Optical Diagonal Machine,” Annals of Science 9 (1953): 315-322.
- Location
- Currently not on view
- Physical Description
- wood (overall material)
- glass (overall material)
- Measurements
- overall: 63 cm x 31.3 cm x 22 cm; 24 13/16 in x 12 5/16 in x 8 11/16 in
- overall: 25 in x 12 in x 8 in; 63.5 cm x 30.48 cm x 20.32 cm
- ID Number
- PH.323396
- catalog number
- 323396
- accession number
- 251562
- Credit Line
- University of Virginia
- subject
- Science & Scientific Instruments
- See more items in
- Medicine and Science: Physical Sciences
- Science & Mathematics
- Optics
- Data Source
- National Museum of American History
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