INFRARED SPECTROSCOPE AND INFRARED SPECTRAL MEASURING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an infrared spectroscope capable of extending life of a detector in an infrared spectral measuring device and quickly measuring parameters for a plurality of types of constituents included in an entire measurement target.;SOLUTION: The infrared spectroscope is arranged between a light source and a detector in the infrared spectral measuring device for dispersing measurement light radiated from the light source. The infrared spectroscope includes: a first optical filter of a transmission wavelength fixation type; and a second optical filter of a transmission wavelength variable type capable of changing a transmission wavelength from a first wavelength (wavelength Wa) to a second wavelength (wavelength Wb). The first optical filter includes a multi-wavelength optical filter, where one or more transmission regulation wavelength regions (a region between wavelengths W1, W2) for regulating transmission of measurement light is prescribed between first and second wavelengths, and a plurality of discontinuous transmission permission wavelength regions (two wavelength regions, namely a wavelength region with the wavelength W1 as a center and a wavelength region with the wavelength W2 as a center) are prescribed between the first and second wavelengths.;COPYRIGHT: (C)2011,JPO&INPIT