NATURAL LIGHTING DEVICE

摘要

A natural lighting device for lighting a wide range while removing glare by diffusing direct rays widely without using a movable device such as an electric louver. The natural lighting device comprises a plurality of blades (1) having a reflective surface arranged in parallel in the longitudinal direction. The blades (1) are arranged such that the opening area on the light exit side formed by the adjoining blades (1) is wider than the opening area on the light incident side. The reflective surface may be a mirror surface or a diffusion surface and it may be not a planar surface but a curved surface.