Spectrometry and Optical Measuring Method and Apparatus

摘要

In an optical measuring apparatus of the present invention, a spectroscopic means emits a measuring light beam that contains a measure light component of a measure wavelength domain where a measured object absorbs part of the light and a reference light component of reference wavelength domain where the measured object almost completely absorbs the light, and separate the beam into beams, a photometric means measures the light incident on an Integrating sphere when a reference sample is inserted at the light path of beam to store the measurements in memory and also measures the light incident on Integrating sphere when a measured object is inserted in the light path of beam and, then, an arithmetic circuit calculates the light intensity ratio of the compensation light component for the measured object to the compensation light component stored in memory and then estimates the background intensities during the measurement by multiplying the measurements stored in the memory by the ratio. <IMAGE>