摘要 |
PROBLEM TO BE SOLVED: To provide a lighting system capable of being set at an outer wall facing to an arbitrary direction of a building, and capable of illuminating inside a room bright by effectively adopting light from sunlight or outdoor light. SOLUTION: An indoor duct 13 is connected to an indoor-side end of a horizontal duct 11 through a bent joint 12 with its inner surface as a reflecting surface, a plurality of openings 131 are formed on a side of the indoor duct 13, and a reflective plate M is provided inside each opening 131, sunlight taken into the indoor duct 13 is reflected toward the side of the indoor duct 13 with each reflective plate M to obtain indoor illumination light by emitting the reflected light from each opening 131 outside of the duct. COPYRIGHT: (C)2011,JPO&INPIT
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