DAYLIGHTING AND THERMAL INSULATION WINDOW

Japanese Patent JP3656794

B2

PROBLEM TO BE SOLVED: To create light indoor environment which has the thermal insulation property and takes in natural light stably by arranging a linear Fresnel lens between a transparent or translucent plate material through, which light penetrates and scatters and a transparent plate material, and forming an air layer between the plate material on one side and the linear Fresnel lens.
SOLUTION: A linear Fresnel lens 2 is arranged between a transparent or translucent figured glass 1 through which light penetrates and scatters and a transparent glass 3 to constitute a daylighting lens system multiple layer face material S having a three layer structure on the whole. An outer surface of the figured glass 1 is smooth, and an inner surface thereof, namely, a surface on a side which faces the linear Fresnel lens 2, is a rugged face. Moreover, a surface of a side which faces a recessed and projecting part of the figured glass 1 of the linear Fresnel lens 2 is a stairlike Fresnel face 2a, and a surface on a side which faces the transparent glass 3 thereof is smooth. An air layer is formed between at least either of the figured glass 1 and the transparent glass 3 and the linear Fresnel lens 2.

WO/2013/031295	FLOOD-PROTECTION-PLATE DEVICE
JP2004359517	ELECTROMAGNETIC SHIELDING GLASS

Tomio Fujikawa
Satoshi Nakamura
Mitsuru Osawa
Masao Komatsu

JP17050298A

June 08, 2005

June 04, 1998

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Tokyu Construction Co., Ltd.
Natural Science Institute Co., Ltd.

E06B5/00; E06B9/24; E06B9/386; G02B5/02; (IPC1-7): E06B5/00; E06B9/24; G02B5/02

JP5083287U
JP54155637A
JP58146689A

Seishiro Suzuki

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