| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a light shelf structure capable of preventing a visual field of a resident from blocking and irradiating a desired irradiation area of a ceiling surface with a desired amount of light. <P>SOLUTION: The light shelf structure includes a daylighting window 12 arranged on an outer wall, and a light shelf arranged on the outer wall. The light shelf introduces sunlight to the indoor through the daylighting window by reflecting the sunlight at a reflection region 20, and irradiates the desired irradiation area 30 of the ceiling surface 15 in the indoor. An angle of an indoor side end edge 20A of the reflection region 20 is determined so as to make the sunlight reach to the indoor side end edge 30A of the irradiation area 30 by reflecting the sunlight at the indoor side end edge 20A, and the angle of an outdoor side end edge 20B of the reflection region 20 is determined so as to make the sunlight reach to the outdoor side end edge 30B of the irradiation area 30 by reflecting the sunlight at the outdoor side end edge 20B. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
