Infrared spectrometer

Details Infrared spectrometer Infrared spectrometer

2007-01-16

2007-01-16

Evans, F. L. (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrophotometer

C356S325000

Reexamination Certificate

active

11139983

ABSTRACT:
A detecting device for a spectrophotometer is provided which is capable of exhibiting a sufficient sensitivity and with an adequate linearity over the ultraviolet light, visible light and near-infrared light ranges. The spectrophotometer detecting device includes detectors of a photomultiplier-tube detector, an InGaAs detector and a PbS detector, and a switching device for switching among these detectors. Alternatively, the spectrophotometer may include a single integrating sphere including these three types of detectors placed thereon. The spectrophotometer may further include output conversion means for correcting the output linearity difference among these detectors.

REFERENCES:
patent: 4070112 (1978-01-01), Tsunazawa et al.
patent: 6721048 (2004-04-01), Yokota et al.
patent: 2002-062189 (2002-02-01), None

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