| 摘要 |
<p>PURPOSE:To display a sunshade function and a lighting function properly in correspondence with a season. CONSTITUTION:In an eaves roof consisting of a plurality of louver pieces l arranged and fixed in the front and rear direction, each louver piece 1 is made to rise and incline upward in the front approximately 30 deg. from the horizontal, and almost all the direct sunlight having a low angle near approximately 30 deg. enters into a window opening 4 along the inclination of the louver piece 1 without being cut off by each one of the louver pieces 1. Width size T of each one of the louver pieces 1 and their mutual interval size S are so set that a rising inclination from the horizontal of a cross-line connecting between an front end edge section 2 of the louver piece 1 and a rear end edge section 3 of a louver piece 1 located downward of the louver piece 1 becomes at an approximate 60 deg., and the direct sunlight having angles higher than an approximate 60 deg. is cut off by each one of the louver pieces 1.</p> |
