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Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/154810
Kind Code:
A1
Abstract:
This lighting device 1 is provided with: a long frame member 2 which is formed from a first metal and is provided with a long light source part 5; a long cover member 3 which is formed from a resin and is fitted to the frame member 2 so as to cover the light source part 5; and a long base member 4 which is formed from a second metal that has a lower thermal expansion coefficient than the first metal, and which is fitted to the frame member 2 so as to face the cover member 3, with the frame member 2 being interposed therebetween. The frame member 2 is longer than the cover member 3; at least one of end portions of the frame member 2 is provided with a first space S1 that allows deformation of the cover member 3 due to thermal expansion; the base member 4 is longer than the frame member 2; and at least one of end portions of the base member 4 is provided with a second space S2 that allows deformation of the frame member 2 due to thermal expansion.

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Inventors:
TAKIMOTO SHIGERU (JP)
Application Number:
PCT/JP2017/008677
Publication Date:
September 14, 2017
Filing Date:
March 06, 2017
Export Citation:
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Assignee:
KOWA CO (JP)
International Classes:
F21V15/01; F21S2/00
Foreign References:
JP2015201461A2015-11-12
JP2013041669A2013-02-28
JP2014056789A2014-03-27
JP2015146263A2015-08-13
JP2013037915A2013-02-21
JP2014179207A2014-09-25
JP2016100197A2016-05-30
Attorney, Agent or Firm:
HAYAKAWA Yuzi et al. (JP)
Download PDF:
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