Light distribution characteristic measurement apparatus and light distribution characteristic measurement method

摘要

A light distribution characteristic measurement apparatus includes an imaging unit disposed at a predetermined distance from a light source, a movement mechanism that successively changes a positional relation of the imaging unit with respect to the light source, while keeping the distance between the light source and the imaging unit, and a processing module that calculates the light distribution characteristic of the light source. The processing module obtains a plurality of image data taken under a first imaging condition and a plurality of image data taken under a second imaging condition different from the first condition, and determines corrected image information corresponding to a relative position of interest, from first image information corresponding to the relative position of interest included in the image data taken under the first condition and second image information corresponding to the relative position of interest included in the image data taken under the second condition.