TWO-DIMENSIONAL SPECTROMETRIC APPARATUS AND METHOD

摘要

PROBLEM TO BE SOLVED: To accurately measure the spectral intensity of light from an object to be measured. SOLUTION: A two-dimensional spectrometric apparatus comprises a reference light source having an intensity peak in a specific wavelength; a variable wavelength filter capable of altering a transmission wavelength band; a light-receiving part for receiving light from the object to be measured via the variable wavelength filter and outputting light intensity; an optical system for making the light-receiving part capable of receiving light from the reference light source during the alteration of the transmission wavelength band of the variable wavelength filter; and an operation part for determining the amount of shift of the wavelength of the transmission wavelength band on the basis of both of the light intensity of light from the reference light source received by the light-receiving part and the specific wavelength and correcting the light intensity of light from the object to be measured on the basis of the amount of shift of the wavelength. COPYRIGHT: (C)2011,JPO&INPIT