| abstract |
Provided is a daylighting sheet which can control the light from the outdoor side in a desired direction and can see the outdoor side from the indoor side and has excellent durability. A unit prism having a trapezoidal cross section and extending in one direction is composed of a plurality of deflection layers arranged in a direction different from one direction, and a plate member having translucency. A base material layer laminated on the lower base surface of the trapezoidal cross section of the light source, and a light-transmitting plate-like member, and a protective layer laminated on the upper base surface of the trapezoidal cross section of the unit prism of the deflection layer And having. [Selection] Figure 2 |