| 摘要 |
PROBLEM TO BE SOLVED: To adjust lighting intensity and heat quantity by finely adjusting incident light.SOLUTION: A light control mechanism H has a plurality of louvers 1 installed in a lateral direction. Each louver 1 has a plurality of horizontally long plate-form slats 3 installed parallel to each other in a vertical direction. The plurality of slats 3 of each louver 1 is curved in a recessed form to have incident light reflected and emitted to the other side, when seen in a cross-section view orthogonal to a longer-side direction of the slat. An inclination angle β of the reflected light from the slat 3 in an upper part is relatively small, and the reflected light reaches deep inside a room 4 and is reflected on a ceiling 5. The inclination angle β of the slat 3 in a lower part is relatively large, and the reflected light passes through a glass window 2 and is reflected on the ceiling 5 of the room 4. The louver 1 supports an upper support shaft 8 at an upper edge of the slat 3 and a lower support shaft 10 at a lower edge, in a way that allows relative rotation between the shafts. By rotating and twisting the lower support shaft 10 by 90 degrees relative to the upper support shaft 8, the incident light is made to pass through a tapered-form gap between the louvers 1 in the lower part.SELECTED DRAWING: Figure 2 |
