DOUBLE REFRACTION CHARACTERISTIC MEASURING DEVICE AND DOUBLE REFRACTION CHARACTERISTIC MEASURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a double refraction measuring device and a double refraction measuring method capable of evaluating accurately a measuring object without disturbing conveyance in the middle of continuous conveyance of the measuring object.;SOLUTION: This double refraction measuring device is equipped with a CCD 13 formed by arraying two-dimensionally light receiving parts 13b; and an optical system (a light emitting device 1 to a grism 12) for transmitting light including a prescribed band component into a prescribed range in the width direction of the object 201, spectrally diffracting the transmitted light, and allowing the light transmitted through each prescribed position in the width direction of the object 201 and spectrally diffracted to enter each light receiving part lane of the CCD 13.;COPYRIGHT: (C)2005,JPO&NCIPI