A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
DAYLIGHTING FILM AND DAY LIGHTING TOOL
PROBLEM TO BE SOLVED: To provide a daylighting film that prevents peeping without reducing daylighting efficiency.SOLUTION: A daylighting film 1 comprises a base portion 3 having a plurality of grooves formed to be spaced apart from each other along one surface thereof and a plurality of louver portions 4 obtained by filling the plurality of grooves with a filling material having a refractive index different from that of the base portion. For at least some of the plurality of louver portions, a shortest distance (a) from a prescribed point in an end section on a side opposite the one surface to the one surface, and a shortest distance (b) along the one surface from a point of intersection between a vertical line drawn from the prescribed point and the one surface to an adjacent louver portion are set such that a value obtained by dividing (b) by (a) is no greater than a predetermined value.
【課題】採光効率を低下させずに覗き見を防止する。【解決手段】採光フィルム１は、一方の面に沿って離隔して形成される複数の溝を有するベース部３と、ベース部とは異なる屈折率を持つ充填材料を複数の溝内に充填した複数のルーバー部４と、を備える。複数のルーバー部のうち少なくとも一部のルーバー部における一方の面と反対側の端部上の所定位置から一方の面までの最短距離をａ、所定位置から一方の面に下ろした垂線と一方の面との交点から一方の面に沿って隣接するルーバー部までの最短距離をｂとしたときに、ｂをａで割った値が所定値以下になるように、ａおよびｂを設定する。【選択図】図１
DAYLIGHTING FILM AND DAY LIGHTING TOOL
PROBLEM TO BE SOLVED: To provide a daylighting film that prevents peeping without reducing daylighting efficiency.SOLUTION: A daylighting film 1 comprises a base portion 3 having a plurality of grooves formed to be spaced apart from each other along one surface thereof and a plurality of louver portions 4 obtained by filling the plurality of grooves with a filling material having a refractive index different from that of the base portion. For at least some of the plurality of louver portions, a shortest distance (a) from a prescribed point in an end section on a side opposite the one surface to the one surface, and a shortest distance (b) along the one surface from a point of intersection between a vertical line drawn from the prescribed point and the one surface to an adjacent louver portion are set such that a value obtained by dividing (b) by (a) is no greater than a predetermined value.
【課題】採光効率を低下させずに覗き見を防止する。【解決手段】採光フィルム１は、一方の面に沿って離隔して形成される複数の溝を有するベース部３と、ベース部とは異なる屈折率を持つ充填材料を複数の溝内に充填した複数のルーバー部４と、を備える。複数のルーバー部のうち少なくとも一部のルーバー部における一方の面と反対側の端部上の所定位置から一方の面までの最短距離をａ、所定位置から一方の面に下ろした垂線と一方の面との交点から一方の面に沿って隣接するルーバー部までの最短距離をｂとしたときに、ｂをａで割った値が所定値以下になるように、ａおよびｂを設定する。【選択図】図１
DAYLIGHTING FILM AND DAY LIGHTING TOOL
採光フィルムおよび採光具
OKI YASUHIRO (author) / OBATA CHIAKI (author)
2015-11-12
Patent
Electronic Resource
Japanese
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
/
F21V
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF
,
Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen
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