Spectroradiometer

Details Spectroradiometer Spectroradiometer

1994-11-04

1996-03-05

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356334, G01J 328

Patent

active

054972302

ABSTRACT:
Light having a wavelength equal to or less than the cut-off wavelength of a sharp-cut filter is cut off so that an output of a photo-sensitive device corresponds to a stray light component when a wavelength control device sets the wavelength equal to or less than the cut-off wavelength of the sharp-cut filter. By subtracting the stray light component from the output of the photo-sensitive device when the photo-sensitive device is to be measured an intensity of light having a predetermined wavelength, the stray light component can be removed from dispersion outputs of the spectroradiometer.

REFERENCES:
patent: 3886331 (1975-05-01), Schierer
patent: 4300835 (1981-11-01), Schiemann et al.
patent: 4455088 (1984-06-01), Koike
patent: 4526470 (1985-07-01), Kaye
patent: 4540282 (1985-09-01), Landa et al.
patent: 4692883 (1987-09-01), Nelson et al.
patent: 4717254 (1988-01-01), Masuda
patent: 5128549 (1992-07-01), Kaye
Sims et al, "Multielement Emission Spectroscopy Using a Charge-Injection Device Detector", American Chemical Society, 1983 pp. 117-131.

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