| 摘要 |
PROBLEM TO BE SOLVED: To provide a daylighting face material capable of sufficiently taking in the outdoor light up to the innermost part in a room without discomfort, capable of improving a brightness feeling in the room, hardly deteriorating a sticking surface of a refractive raw material layer by solar radiation heat from the outdoors, and formable as a heat shield type applicable to a wet and hot district.SOLUTION: A daylighting face material 1 is provided in an opening part 11 of a building, and is provided for taking the outdoor light in the room by blocking up the opening part 11. The daylighting face material 1 comprises: an outdoor side plate 2 provided on the outdoor side and composed of a nondiffusible light-transmissive material; and an indoor side plate 3 provided on the indoor side being separated from this outdoor side plate 2 with an air layer 4 therebetween. The outdoor side plate 2 is formed by interposing a light-transmissive crime-preventive film, for example, between two light-transmissive plates 2a and 2a. A raw material layer 9 for refracting and transmitting the incident light is provided on a surface of turning to the air layer 4 of the indoor side plate 3. A heat ray shielding film 5 is provided on a surface directed to the air layer 4 of the outdoor side plate 3. |
