Flicker Photometer

Flicker Photometer

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Description
Flicker photometers are used to compare the intensity of two light sources. Ogden Nicolas Rood (1831-1902), professor of physics at Columbia University, invented the form in the 1890s. This example could be mounted on an optical bench. The inscription on the side reads “PL 3662A.”
Ref: O. N. Rood, “On a Flicker Photometer,” Science 7 (1898): 757-759.
Frank P. Whitman, “The Flicker Photometer,” Science 8 (1898): 11-13.
Location
Currently not on view
Object Name
Flicker Photometer
Measurements
overall: 11 in x 7 3/8 in x 3 3/4 in; 27.94 cm x 18.7325 cm x 9.525 cm
ID Number
PH.334763
catalog number
334763
accession number
312091
Credit Line
University of Illinois
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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