Patent ID: 10746363

Abstract:
Provided is a daylighting film (10) including: a base (11) having light-transmissive performance; a plurality of first protrusion portions (12) that have light-transmissive performance and are provided to be adjacent to each other on one surface (11a) of the base (11); a gap portion (13) provided between the first protrusion portions (12); and at least one second protrusion portion (14) that is provided in at least one gap portion (13) to be adjacent to the first protrusion portions (12) on the one surface (11a) of the base (11) and that is formed of the same material as that of the first protrusion portions (12), in which a height of the second protrusion portion (14) from the one surface (11a) of the base (11) is smaller than a height of each of the first protrusion portions (12) from the one surface (11a) of the base (11).