Title:
SOLAR LIGHT IRRADIATION STRUCTURE COMPRISING LIGHT INCIDENCE ADJUSTMENT MEMBER, AND SOLAR LIGHT IRRADIATION METHOD
Document Type and Number:
WIPO Patent Application WO/2011/148963
Kind Code:
A1
Abstract:
The present invention aims to increase the amount of lighting in mornings and evenings from a solar light lighting device, to increase the degree of freedom of selection and setting of the properties, materials and the likes of a light incidence adjustment member, and to simplify and streamline the manufacture thereof. A light incidence adjustment member (east-facing curved plate (2), west-facing curved plate (3)) is provided on a lighting unit (1a) of an optical duct (1). The lower surface of the light incidence adjustment member comprises light reflecting surfaces (2a, 3a) which irradiate low-altitude sunlight (path A) on the lighting unit (1a), and the upper surface comprises light shielding surfaces (2b, 3b) which block a part (path C) of the high-altitude sunlight (paths B, C) that is incident on the lighting unit (1a). A light-reflective upright flat plate (4) is provided on the northern side of the light incidence adjustment member, and the sunlight incident on said light-reflective upright flat plate is led to a lighting unit (1b).
Inventors:
ARAI Hideo (Haitsu Hekisui 203, 9-25 Yakumo 1-chome Meguro-k, Tokyo 23, 〒1520023, JP)
Application Number:
JP2011/061940
Publication Date:
December 01, 2011
Filing Date:
May 25, 2011
Export Citation:
Assignee:
Material House CO., LTD. (19-3, Nakaikegami 1-chome Ota-k, Tokyo 81, 〒1460081, JP)
株式会社マテリアルハウス (〒81 東京都大田区仲池上一丁目１９番３号 Tokyo, 〒1460081, JP)
株式会社マテリアルハウス (〒81 東京都大田区仲池上一丁目１９番３号 Tokyo, 〒1460081, JP)
International Classes:
F21S11/00; F21V7/04
Attorney, Agent or Firm:
TANAKA Haruyuki (Tanaka Patent Office, Shinagawa station building 4F. 3-3 Nishishinjuku 1-chome, Shinjuku-k, Tokyo 23, 〒1600023, JP)
Claims:
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