Light distribution characteristic measurement apparatus and light distribution characteristic measurement method

摘要

A light distribution characteristic measurement apparatus for measuring the light distribution characteristic of a light source is provided. The apparatus includes a plurality of detectors arranged so that they have a predetermined relative relationship with each other. One detector has a detection range at least partially overlapping a detection range of another detector adjacent to the former detector. The apparatus further includes a drive unit that drives a plurality of detectors as one unit to update a positional relationship of the plurality of detectors relative to the light source, and a calculation unit that calculates the light distribution characteristic of the light source by performing a process depending on at least one of a relative relationship between a plurality of detectors and overlapping of respective detection ranges thereof, based on respective results of detection that have been acquired by the plurality of detectors at the same timing.

主权项

1. A light distribution characteristic measurement apparatus for measuring a light distribution characteristic of a light source, comprising:
a plurality of detectors arranged so that said detectors have a predetermined relative relationship with each other, one detector having a detection range at least partially overlapping a detection range of another detector adjacent to said one detector; a drive unit configured to drive said plurality of detectors as one unit to update a positional relationship of said plurality of detectors relative to said light source; and a calculation unit configured to calculate the light distribution characteristic of said light source by performing a process depending on at least one of the relative relationship between said plurality of detectors and overlapping of respective detection ranges of said plurality of detectors, based on respective results of detection that have been acquired by said plurality of detectors at the same timing.