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A colorimeter compares the color of a sample with that of a standard, often for industrial purposes. Louis Jules Duboscq, a major optical instrument maker in Paris, devised an important early form. This example, which came from the Smithsonian Instrument Collection, is of that sort.
Ref: Deborah J. Warner, “The Duboscq Colorimeter,” Bulletin of the Scientific Instrument Society 88 (2006): 68-70.
Currently not on view
Object Name
base: 6 in x 7 in; 15.24 cm x 17.78 cm
overall: 19 in x 5 1/2 in; 48.26 cm x 13.97 cm
overall: 19 3/16 in x 7 1/4 in x 7 3/8 in; 48.73625 cm x 18.415 cm x 18.7325 cm
ID Number
catalog number
accession number
Credit Line
Transfer from Smithsonian Institution Astrophysical Observatory
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Medicine and Science: Chemistry
Data Source
National Museum of American History
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