Title:
SURFACE ILLUMINATION FIXTURE AND SURFACE ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/132787
Kind Code:
A1
Abstract:
Provided is a surface illumination fixture which uses a point light source having strong directivity. A surface illumination fixture (3) provided with an illumination fixture main body (41) and a surface illumination light-source device (6) which comprises a plurality of point light sources (36) having strong directivity and which converts light emitted from the point light sources to surface illumination, wherein the surface illumination light-source device (6) is formed from a casing (30) and a light-guide reflection plate. The casing (30) comprises: a flat plate part (35) that is used to attach the surface illumination light-source device to the illumination fixture main body; and lateral plate parts that are provided in an upright manner from the flat plate part. The casing (30) has an opening at a surface opposite to the flat plate part, and the light-guide reflection plate covers the opening. The flat plate part (35), the lateral plate parts (32, 33), and the light-guide reflection plate (40) are formed by members having high light reflectance and low light transmittance. The light reflectance of the light-guide reflection plate (40) decreases and the light transmittance of the light-guide reflection plate (40) increases as the distance between the light-guide reflection plate (40) and the point light sources (36) increases. The illumination fixture main body (41) is provided with an attachment means for attachment to a ceiling or a wall surface.
Inventors:
SATO, Eiichi (INC. 3-2-6-108, Minami-Osawa, Hachioji-sh, Tokyo 64, 〒1920364, JP)
佐藤 榮一 (〒64 東京都八王子市南大沢３丁目２番地６－１０８ 株式会社オプトデザイン内 Tokyo, 〒1920364, JP)
SATO, Hiroyasu (INC. 3-2-6-108, Minami-Osawa, Hachioji-sh, Tokyo 64, 〒1920364, JP)
佐藤 榮一 (〒64 東京都八王子市南大沢３丁目２番地６－１０８ 株式会社オプトデザイン内 Tokyo, 〒1920364, JP)
SATO, Hiroyasu (INC. 3-2-6-108, Minami-Osawa, Hachioji-sh, Tokyo 64, 〒1920364, JP)
Application Number:
JP2011/059986
Publication Date:
October 27, 2011
Filing Date:
April 22, 2011
Export Citation:
Assignee:
OPTO DESIGN, INC. (3-2-6-108, Minami-Osawa Hachioji-sh, Tokyo 64, 〒1920364, JP)
株式会社オプトデザイン (〒64 東京都八王子市南大沢３丁目２番地６－１０８ Tokyo, 〒1920364, JP)
SATO, Eiichi (INC. 3-2-6-108, Minami-Osawa, Hachioji-sh, Tokyo 64, 〒1920364, JP)
佐藤 榮一 (〒64 東京都八王子市南大沢３丁目２番地６－１０８ 株式会社オプトデザイン内 Tokyo, 〒1920364, JP)
株式会社オプトデザイン (〒64 東京都八王子市南大沢３丁目２番地６－１０８ Tokyo, 〒1920364, JP)
SATO, Eiichi (INC. 3-2-6-108, Minami-Osawa, Hachioji-sh, Tokyo 64, 〒1920364, JP)
佐藤 榮一 (〒64 東京都八王子市南大沢３丁目２番地６－１０８ 株式会社オプトデザイン内 Tokyo, 〒1920364, JP)
International Classes:
F21V11/14; F21S2/00; F21Y101/02
Attorney, Agent or Firm:
WIN TECH PATENT OFFICE (7th Fl, Uchikanda-Shibuya Bldg. 16-11, Uchikanda 2-chome, Chiyoda-k, Tokyo 47, 〒1010047, JP)
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Claims: