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 (JP)
TONE KENTARO (JP)
TONE KENTARO (JP)
Application Number:
PCT/JP2010/062068
Publication Date:
February 24, 2011
Filing Date:
July 16, 2010
Export Citation:
Assignee:
KOHA CO LTD (JP)
KATO KENJI (JP)
TONE KENTARO (JP)
KATO KENJI (JP)
TONE KENTARO (JP)
International Classes:
F21S2/00; F21V13/02; F21V29/00; F21Y101/02
Foreign References:
| JP2009043447A | 2009-02-26 | |||
| JP2009054405A | 2009-03-12 | |||
| JP3148527U | 2009-02-19 | |||
| JPH11162329A | 1999-06-18 | |||
| JP2005208412A | 2005-08-04 |
Attorney, Agent or Firm:
HIRATA, Tadao (JP)
Tadao Hirata (JP)
Tadao Hirata (JP)
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