Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrophotometer
Patent
1979-01-18
1980-12-30
Evans, F. L.
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrophotometer
G01J 342
Patent
active
042419980
ABSTRACT:
Spectrophotometer intended in particular for the optical analysis of samples in a rotatory analyser. In order to attain the characteristics required of a modern spectrophotometer for clinical chemistry and to attain in particular a high reproducibility of the measurements, the spectrophotometer comprises a flash tube, an stabilizing optical device for device for deriving a light beam having a constant spatial distribution from each flash from the flash tube, a grating monochromator for dispersing the light delivered by the stabilizing device and for delivering a beam of filtered light, an optical element for dividing the filtered beam to produce two beams, the first of which travels through a sample for analysis and the second of which reaches a detector which delivers a reference signal corresponding to the intensity of the second beam, and a second detector placed to receive the beam emerging from the sample.
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Farkas Rudolf
Moulin Michel
Revillet Georges
Evans F. L.
Hoffmann-La Roche Inc.
Hopkins Mark L.
Leon Bernard S.
Saxe Jon S.
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