Title:
LIGHT ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/124085
Kind Code:
A1
Abstract:
The problem addressed by the present invention is, while saving wasted wiring space to be more compact, to increase the cooling efficiency of a light source by controlling the flow of gas flowing in a gap between each heat dissipation fin without increasing weight or manufacturing cost. A light illumination device (100) is provided with: a heat dissipation body (40) having substrates (20), (30) for which an electric wire attachment area and a light source attachment area are set at different surface positions, as well as a plurality of heat dissipation fins (41) erected on the back surface of the substrates (20), (30); a light source (10) provided on the light source attachment area; and an electric wire (60) electrically connected to the light source (10), with one end provided on the electric wire attachment area. The plurality of heat dissipation fins (41) are formed with space open between each other, such that gas flows in the spaces, with one end side of the electric wire wired from the front surface side of the substrate to the heat dissipation fin side, and running along the heat dissipation fin from the base side to the tip side of the heat dissipation fin within the range of the external shape of the heat dissipation body.
Inventors:
YAGI MOTONAO (JP)
TOGAWA TAKUZO (JP)
TOGAWA TAKUZO (JP)
Application Number:
PCT/JP2017/046682
Publication Date:
July 05, 2018
Filing Date:
December 26, 2017
Export Citation:
Assignee:
CCS INC (JP)
International Classes:
F21V23/00; F21V29/503; F21V29/67; F21V29/76; F21Y115/10
Foreign References:
| JP2011222150A | 2011-11-04 | |||
| JP2009049010A | 2009-03-05 | |||
| JP2014123438A | 2014-07-03 |
Attorney, Agent or Firm:
NISHIMURA, Ryuhei (JP)
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