Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
To provide a retroreflective window capable of shielding direct sunlight and reflecting the same to the solar side while maintaining a prospect characteristic and also capable of enhancing usability of direct sunlight.SOLUTION: Retroreflective windows 1-3 comprise first and second transparent plates 10a and 10b, a transparent first prism 30 disposed between the first and second transparent plates 10a and 10b and a switching member 50 disposed so as to face a second side 30b of the first prism 30 and switching between a reflection state in which reflectance of visible light and infrared ray is 70% or higher and a non-reflection state in which reflectance of visible light and infrared ray is 30% or lower. The first prism 30 makes light entering at a predetermined angle or larger emit from the first transparent plate 10a at almost the same angle with the entering angle via reflection of the switching member 50 and a third side 30c when the switching member 50 is in the reflection state and makes light, out of light entering at an angle smaller than the predetermined angle, reaching the third side 30c pass through and emit from the second transparent plate 10b.SELECTED DRAWING: Figure 1
【課題】眺望性を維持しつつも直達光を遮断して太陽側に反射させることができると共に、直達光の利用性を高めることができる再帰反射窓を提供する。【解決手段】再帰反射窓１〜３は、第１及び第２の透明性板材１０ａ，１０ｂと、第１及び第２の透明性板材１０ａ，１０ｂの間に配置される透明性の第１プリズム３０と、第１プリズム３０の第２の辺３０ｂに対向して設置され、可視光及び赤外線の反射率が７０％以上となる反射状態と、可視光及び赤外線の反射率が３０％以下となる非反射状態とで切替可能な切替部材５０とを備えている。第１プリズム３０は、切替部材５０が反射状態であるときに、所定角度以上で進入した光を、切替部材５０及び第３の辺３０ｃでの反射を経て、進入時と略同じ角度で第１の透明性板材１０ａから出射させ、所定角度未満で進入した光のうち、第３の辺３０ｃに到達するものを透過させて、第２の透明性板材１０ｂから出射させる。【選択図】図１
To provide a retroreflective window capable of shielding direct sunlight and reflecting the same to the solar side while maintaining a prospect characteristic and also capable of enhancing usability of direct sunlight.SOLUTION: Retroreflective windows 1-3 comprise first and second transparent plates 10a and 10b, a transparent first prism 30 disposed between the first and second transparent plates 10a and 10b and a switching member 50 disposed so as to face a second side 30b of the first prism 30 and switching between a reflection state in which reflectance of visible light and infrared ray is 70% or higher and a non-reflection state in which reflectance of visible light and infrared ray is 30% or lower. The first prism 30 makes light entering at a predetermined angle or larger emit from the first transparent plate 10a at almost the same angle with the entering angle via reflection of the switching member 50 and a third side 30c when the switching member 50 is in the reflection state and makes light, out of light entering at an angle smaller than the predetermined angle, reaching the third side 30c pass through and emit from the second transparent plate 10b.SELECTED DRAWING: Figure 1
【課題】眺望性を維持しつつも直達光を遮断して太陽側に反射させることができると共に、直達光の利用性を高めることができる再帰反射窓を提供する。【解決手段】再帰反射窓１〜３は、第１及び第２の透明性板材１０ａ，１０ｂと、第１及び第２の透明性板材１０ａ，１０ｂの間に配置される透明性の第１プリズム３０と、第１プリズム３０の第２の辺３０ｂに対向して設置され、可視光及び赤外線の反射率が７０％以上となる反射状態と、可視光及び赤外線の反射率が３０％以下となる非反射状態とで切替可能な切替部材５０とを備えている。第１プリズム３０は、切替部材５０が反射状態であるときに、所定角度以上で進入した光を、切替部材５０及び第３の辺３０ｃでの反射を経て、進入時と略同じ角度で第１の透明性板材１０ａから出射させ、所定角度未満で進入した光のうち、第３の辺３０ｃに到達するものを透過させて、第２の透明性板材１０ｂから出射させる。【選択図】図１
RETROREFLECTIVE WINDOW
再帰反射窓
NAKAMURA TAKUJIYU (Autor:in)
22.08.2019
Patent
Elektronische Ressource
Japanisch
IPC:
G02B
Optische Elemente, Systeme oder Geräte
,
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
/
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES