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Polariscope

Polariscope

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Description
This instrument, which the U.S. Military Academy bought from Lerebours in Paris in 1830, consists of a hollow brass tube (10.25 inches long) supported by a brass stand (10 inches high). At either end of the tube is a dark rectangular mirror that can be aimed in various directions. It demonstrates the phenomenon, found by Étienne Malus in 1808, that light can be polarized by reflection.
Location
Currently not on view
Object Name
polariscope
date made
around 1830
Maker
Lerebours
place made
France: Île-de-France, Paris
Measurements
overall: 12 5/8 in x 4 in x 13 in; 32.0675 cm x 10.16 cm x 33.02 cm
ID Number
PH.315426
catalog number
315426
accession number
217544
Credit Line
U.S. Military Academy
subject
Science & Scientific Instruments
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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