PHOTO-DETECTOR, DARK OUTPUT CORRECTING METHOD, AND LIGHT SPECTRUM ANALYZER

摘要

PROBLEM TO BE SOLVED: To provide a photo-detector capable of canceling offset variations without increasing measurement time.;SOLUTION: This photo-detector is equipped with a photo receiving means 35 having a first photo receiving cell capable of receiving measured light and a second photo receiving cell shielded from all the light including the measured light, and a correction means 42 for correcting an output from the first cell possessed by the receiving means 35 by using an output from the second cell.;COPYRIGHT: (C)2002,JPO