| 摘要 |
The invention relates to sun protection installations comprising reflective sun protection lamellae consisting of portions having a toothed upper side disposed at least towards sun radiation influx wherein the individual teeth are formed of at least two tooth sides, and at least one first tooth side is, at least partly, exposed to sun light irradiation. Sun light irradiation, at least within the first lamella portions, can be retro-reflected by one single reflection into the outer space by the first tooth side having an angle of impact alpha1. The tooth angle of impact alpha1 of the tooth sides exposed to the sun light are so selected within the first lamella portions facing the irradiation area that in case of parallel sun light larger angles of impact beta of the sun radiation are obtained so that inciding sun light may be reflected back, by one single reflection, to the outer space. Second or further lamella portions are so arranged at an angle alpha1 that small angles of impact beta on the tooth sides facing the sun will result but the sun light can be reflected into the interior space In any case, tooth angles of impact alpha1 within the lamellae differ from each other. |
