Conical Prism

Conical Prism

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Description
This is a conical glass prism mounted on a brass base that, in turn, would fit on an optical bench. The “J. DUBOSCQ / A PARIS” inscription refers to Jules Duboscq (1817-1886), an optical instrument maker who began working on his own in the early 1850s, and who noted that this instrument produced a circular spectrum. This item was used by cadets at the U.S, Military Academy.
Ref: Jules Duboscq, Catalogue Systématique des Appareils D'Optique (Paris, 1870), p. 19.
Location
Currently not on view
Object Name
conical prism
place made
France: Île-de-France, Paris
Measurements
overall: 40 1/2 in x 15 in x 9 in; 102.87 cm x 38.1 cm x 22.86 cm
overall: 16 in x 4 5/16 in x 3 1/2 in; 40.64 cm x 10.95375 cm x 8.89 cm
ID Number
PH.315762
accession number
217544
catalog number
315762
Credit Line
United States 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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