Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Patent
1989-12-21
1992-05-26
Evans, F. L.
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrometer
356328, G01J 318, G01J 342
Patent
active
051161230
ABSTRACT:
A photodiode array spectrometer for determining the spectral composition of a polychromatic beam of radiation comprises an array of photosensitive elements intercepting different wavelengths of the polychromatic beam of radiation. An output signal representative of the charge accumulated by a charge amplifier circuit is obtained each time a predetermined number greater than 1 of photosensitive elements is scanned such that the output signal is representative of the integral of a plurality of the amounts of radiation intercepted by a corresponding plurality of the photosensitive elements.
REFERENCES:
patent: 4330209 (1982-05-01), Hashimoto et al.
patent: 4958928 (1990-09-01), Kuderer
Joachim Leyrer, Gunter E. Nill, Detlev Hadbawnik, Gunter Hoschele and Joachim Dieckmann, "A High-Speed Spectrophotometric LC Detector", Hewlett-Packard Journal, Apr. 1984, pp. 31-41.
Evans F. L.
Hewlett--Packard Company
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