Title:
FLUORESCENT LAMP TYPE ILLUMINATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/021457
Kind Code:
A1
Abstract:
Disclosed is a fluorescent lamp type illuminating device, wherein deformation due to temperature difference of a pipe is reduced, said temperature difference being caused by self-heating of a light emitting element, and the light emitting element has a high density and a large current.
The fluorescent lamp type illuminating device (1) is provided with: a supporting substrate (50), which is disposed on the rear surface of an LED substrate (40); and a light-transmissive tubular member (10), which houses the supporting substrate (50) and is supported. The inside of the light-transmissive tubular member (10) is partitioned by means of the supporting substrate (50), and a first space (2) formed between the light-transmissive tubular member (10) and the supporting substrate (50), and a second space (3) formed between the light-transmissive tubular member (10) and an LED substrate (40) are set to have different volumes.
Inventors:
KATO, Kenji (2-6-8, Kouyama, Nerima-k, Tokyo 22, 〒1760022, JP)
加藤 謙治 (〒22 東京都練馬区向山２丁目６番８号 株式会社光波内 Tokyo, 〒1760022, JP)
加藤 謙治 (〒22 東京都練馬区向山２丁目６番８号 株式会社光波内 Tokyo, 〒1760022, JP)
Application Number:
JP2010/062068
Publication Date:
February 24, 2011
Filing Date:
July 16, 2010
Export Citation:
Assignee:
KOHA CO., LTD. (2-6-8, Kouyama Nerima-k, Tokyo 22, 〒1760022, JP)
株式会社光波 (〒22 東京都練馬区向山２丁目６番８号 Tokyo, 〒1760022, JP)
KATO, Kenji (2-6-8, Kouyama, Nerima-k, Tokyo 22, 〒1760022, JP)
株式会社光波 (〒22 東京都練馬区向山２丁目６番８号 Tokyo, 〒1760022, JP)
KATO, Kenji (2-6-8, Kouyama, Nerima-k, Tokyo 22, 〒1760022, JP)
International Classes:
F21S2/00; F21V13/02; F21V29/00; F21Y101/02
Attorney, Agent or Firm:
HIRATA, Tadao (Hirata & Partners, World-Wide-Center 1-13, Sanban-cho, Chiyoda-k, Tokyo 75, 〒1020075, JP)
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