DAYLIGHTING FILM, DAYLIGHTING TOOL, AND DAYLIGHTING FILM MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a daylighting film that offers enhanced anti-reflection performance without reducing daylighting efficiency.SOLUTION: A daylighting film 1 comprises a plurality of light control layers laminated together, each comprising a base portion 3 having a plurality of grooves formed to be spaced apart from each other along one surface thereof and a plurality of louver portions 4 which has a refractive index different from that of the base portion and fill the plurality of grooves. Positions of the plurality of louver portions of at least one of the plurality of light control layers are shifted, in a direction in which the plurality of louver portions are arrayed on the one surface, relative to those of the plurality of louver portions of at least another light control layer.