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Title:
BEACON LIGHT
Document Type and Number:
WIPO Patent Application WO/2011/036869
Kind Code:
A1
Abstract:
Disclosed is a beacon lamp which is provided with: a lamp body provided with a flood light window; a planar light source provided with a substrate and a plurality of groups of LED chips, which are arranged in rectangular forms in substantially the same direction on the substrate and are disposed in the lamp body; and an optical system which guides light emitted from the planar light source to the floodlight window. At least some of the LED chip groups have different lengths, and the LED chip groups are disposed on the substrate such that the maximum length among the lengths of the LED chip groups and the total width of the groups are different from each other.

Inventors:
ISHIDA, Yasufumi (1-201-1 Funakoshi-cho, Yokosuka-sh, Kanagawa 10, 〒2378510, JP)
石田 康史 (〒10 神奈川県横須賀市船越町1丁目201番1 東芝ライテック株式会社内 Kanagawa, 〒2378510, JP)
MISAWA, Shigeru (1-201-1 Funakoshi-cho, Yokosuka-sh, Kanagawa 10, 〒2378510, JP)
三沢 茂 (〒10 神奈川県横須賀市船越町1丁目201番1 東芝ライテック株式会社内 Kanagawa, 〒2378510, JP)
MURATA, Junya (1-201-1 Funakoshi-cho, Yokosuka-sh, Kanagawa 10, 〒2378510, JP)
Application Number:
JP2010/005727
Publication Date:
March 31, 2011
Filing Date:
September 22, 2010
Export Citation:
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Assignee:
TOSHIBA LIGHTING & TECHNOLOGY CORPORATION (1-201-1, Funakoshi-cho Yokosuka-sh, Kanagawa 10, 〒2378510, JP)
東芝ライテック株式会社 (〒10 神奈川県横須賀市船越町1丁目201番1 Kanagawa, 〒2378510, JP)
ISHIDA, Yasufumi (1-201-1 Funakoshi-cho, Yokosuka-sh, Kanagawa 10, 〒2378510, JP)
石田 康史 (〒10 神奈川県横須賀市船越町1丁目201番1 東芝ライテック株式会社内 Kanagawa, 〒2378510, JP)
MISAWA, Shigeru (1-201-1 Funakoshi-cho, Yokosuka-sh, Kanagawa 10, 〒2378510, JP)
三沢 茂 (〒10 神奈川県横須賀市船越町1丁目201番1 東芝ライテック株式会社内 Kanagawa, 〒2378510, JP)
International Classes:
F21S2/00; F21W111/06; F21Y101/02
Foreign References:
JP2000348524A2000-12-15
JP2004211503A2004-07-29
JPH02226604A1990-09-10
JP2004233568A2004-08-19
JP2000348501A2000-12-15
Attorney, Agent or Firm:
SAKURA PATENT OFFICE, p.c. (Kanda Higashiyama Bldg, 1 Kandata-cho 2-chome, Chiyoda-k, Tokyo 46, 〒1010046, JP)
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