Absolute spectrophotometer

Details Absolute spectrophotometer Absolute spectrophotometer

1981-06-01

1983-11-01

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrophotometer

250205, G01J 342

Patent

active

044127448

ABSTRACT:
An improved spectrophotometer having a light source, a scanning type monochromator that provides light beams of different wavelengths over a light spectrum being scanned, and an object photometer for measuring the intensity of reflected light from an object being tested and generating an electrical signal proportional to the intensity of the light measured and connected to means for recording the signal as a function of wavelength measured, the improvement used therewith comprising:

REFERENCES:
patent: 3245305 (1966-04-01), Turner
patent: 3431054 (1969-03-01), Doonan et al.
patent: 3506358 (1970-04-01), Baba et al.
patent: 3561872 (1971-02-01), Grabowski et al.
patent: 3646331 (1972-02-01), Lord
patent: 3806258 (1974-04-01), Rich
patent: 3874799 (1975-04-01), Isaacs et al.
patent: 4093991 (1978-06-01), Christie et al.
patent: 4176957 (1979-12-01), Maeda et al.
patent: 4227811 (1980-10-01), Tohyama et al.
Defreese et al., Analytical Chemistry, vol. 48, No. 11, Sep. 1976, pp. 1530-1536.

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