Conical Prism


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

Place Made: France: Île-de-France, Paris

Subject: Science & Scientific Instruments

See more items in: Medicine and Science: Physical Sciences


Exhibition Location:

Credit Line: United States Military Academy

Data Source: National Museum of American History

Id Number: PH.315762Accession Number: 217544Catalog Number: 315762

Object Name: conical prism

Measurements: overall: 40 1/2 in x 15 in x 9 in; 102.87 cm x 38.1 cm x 22.86 cmoverall: 16 in x 4 5/16 in x 3 1/2 in; 40.64 cm x 10.95375 cm x 8.89 cm


Record Id: nmah_1183860

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