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Title:
LIGHTING FIXTURE
Document Type and Number:
Japanese Patent JP2012204200
Kind Code:
A
Abstract:

To provide a lighting fixture which effectively utilizes an installation frame, promotes heat radiation from the front side and the rear side of a light-emitting module, and effectively controls temperature rise of a light-emitting element.

The lighting fixture 1 includes a light-emitting module 2 which has a light-emitting element as a light source and has a light emitting part 23 from which light from the light source is emitted, and in which at least a part of an outer shell 21 has thermal conductivity and is thermally coupled with the light-emitting element, a heat sink 3 which is installed on the rear side of the light-emitting module 2 and is thermally coupled with a part of the outer shell 21, a light distribution member 4 which surrounds the surrounding of the light emitting part 23 of the light emitting module 2 and has a reflecting surface expanding toward the irradiation direction of light, an installation frame 6 of nearly cylindrical shape which is installed at the surrounding of the light distribution member 4 and has thermal conductivity, and a connecting member 5 which connects a part of the outer shell 21 in the light emitting module 2 with the installation frame 6 and transmit heat from the outer shell 21 to the installation frame 6.


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Inventors:
HONDA YUTAKA
MASUDA TOSHIFUMI
EBISAWA OSAMU
Application Number:
JP2011068876A
Publication Date:
October 22, 2012
Filing Date:
March 25, 2011
Export Citation:
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Assignee:
TOSHIBA LIGHTING & TECHNOLOGY
International Classes:
F21S8/02; F21V29/00; F21Y101/02
Domestic Patent References:
JP2010102897A2010-05-06
Attorney, Agent or Firm:
Junichi Izumi