Illuminance calibrating method of illuminator, illuminance calibration controller of illuminator, illuminance calibrating program of illuminator, recording medium storing the program and measuring tool

摘要

An illuminance calibrating method includes a light-receiving intensity measuring step (ST 100 ) for measuring a relationship between an applied current value and a light-receiving intensity of a CCD camera of which exposure time is capable of being changed by taking an image of an illumination from an illuminator by the CCD camera while changing the exposure time of the CCD camera, a characteristic curve calculating step (ST 200 ) for calculating a characteristic curve of the illumination intensity of the illuminator and the applied current value based on the result obtained in the light-receiving intensity measuring step (ST 100 ), and a command-value/current-value table generating step (ST 300 ) for generating a table of the command value and the applied current value based on the calculated characteristic curve.