Unicam SP 500 spectrophometer, c 1949.
3 5 c m
actual image size: 32cm x 27cm

Unicam SP 500 spectrophometer, c 1949.

Exton, David

© Science Museum / Science & Society Picture Library


The Unicam SP 500 was developed as a rival to the Beckman DU spectrophotometer. They were both point by point spectrometers and could not record a continuous spectrum. A spectrophotometer is an instrument for measuring the intensity of light in various parts of the spectrum, especially as transmitted or emitted by a substance or solution at a particular wavelength.



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