DAYLIGHTING DEVICE

• Main Authors: OKI YASUHIRO, KAGE HINAKO, HARIMOTO KAZUYOSHI, SUGAWARA KEIKO, INOSATO KOJI, TOMOKAGE HISASHI, ICHIHARA SANEMARE
• Format: Patent
• Language: English; Japanese
• Published: 21.09.2017
• Subjects: BLASTING; DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; FIXED CONSTRUCTIONS; FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; LADDERS; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

PROBLEM TO BE SOLVED: To provide a daylighting device capable of maintaining the amount of light guided into a house at a certain level or higher without depending upon solar altitudes.SOLUTION: There is provided a daylighting device 1 which reflects sunlight S to irradiate a ceiling surface in a house 3 with reflected light R, the daylighting device 1 comprising a reflecting plate provided to have an outer end part 1a on the outdoor side and an inner end part 1b on the indoor side and also having a reflecting surface on an upper surface 1c. The reflecting surface comprises a curved part 7, which has a plurality of reflecting regions formed to be smaller in angle to a horizontal plane corresponding to lower solar altitudes as they are arranged more on the indoor side and also to be longer in an indoor-outdoor direction corresponding to lower solar altitudes as they are arranged more on the outdoor side when the curved part is sectioned into the plurality of reflecting regions by solar altitudes from the outdoor side to the indoor side.SELECTED DRAWING: Figure 2 【課題】太陽高度に依存せず、屋内への導光量を一定以上の水準に維持することが可能な、採光装置を提供する。【解決手段】太陽光Ｓを反射して、反射光Ｒを屋内３の天井面に照射する採光装置１であって、外端部１ａが屋外側に、内端部１ｂが屋内側に位置するように設けられて、上面１ｃに反射面を有する反射板を備え、前記反射面は、湾曲部７を備え、該湾曲部７は、屋外側から屋内側に向かって、太陽高度毎に複数の反射領域に区分したときに、該複数の反射領域は、屋内側に配置されるものほど低い太陽高度に対応して、水平面に対する角度が小さくなるように形成され、前記複数の反射領域は、屋内側に配置されるものほど低い太陽高度に対応して、内外方向の長さが長くなるように形成された、採光装置１を提供する。【選択図】図２