| 摘要 |
PROBLEM TO BE SOLVED: To optimize the arrangement and outputs of lighting fixtures even if there is a place where an illuminance value is different in an illumination space when using computer graphics to support illumination design. SOLUTION: An input part 11 arranges a plurality of lighting fixtures in a target space constructed by computer graphics. An illumination calculating part 12 calculates the degree of contribution of light energy reaching each part of the target space from each lighting fixture while the whole lamps of all of the lighting fixtures are turned on. An illumination inverse operation part 13, when a place in the target space and a target illuminance value at the place are designated, uses the degree of the contribution of light energy from each lighting fixture calculated by the illumination calculating part 12 about the place to inversely operate the dimming ratio of each lighting fixture required to achieve the target illuminance value. An arrangement determining part 14 determines the arrangement of necessary lighting fixtures by removing, from the target space, lighting fixtures in which the dimming ratios are not higher than a predetermined threshold among the dimming ratios of the respective lighting fixtures calculated by the illumination inverse operation part 13. COPYRIGHT: (C)2011,JPO&INPIT |
