Beckman Model IR-33 Spectrophotometer
- 1970
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Small JPG1200 x 966px — 84.1 KBLarge JPG2880 x 2319px — 366 KBFull-sized JPG3291 x 2650px — 456 KBOriginal fileTIFF — 3291 x 2650px — 25.0 MBThe Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O. Beckman in 1942, asking for an infrared spectrophotometer that they could use to create rubber. Under this contract, Beckman Instruments developed a single-beam spectrophotometer based on Robert Battrain’s extant design, which in 1942 was sold as the IR-1. With the IR-4 in 1956, Beckman Instruments branched out into double-beam design and kicked off a golden age of IR spectrophotometer production that lasted until 1973.
The first image, 2012-002_365, is in the public domain in the U.S. It accompanied a short description of the IR-33's agricultural applications, determining the level of fungal growth and effects of fungicide on almonds.
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Cite as
“Beckman Model IR-33 Spectrophotometer,” 1970. Beckman Historical Collection, Box 55, Folder 154. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/m039k4882.
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