Title:
LIGHT IRRADIATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/211113
Kind Code:
A1
Abstract:
Provided is a light irradiation device equipped with a heat-dissipating device which is highly reliable against water leakage, has excellent corrosion resistance, and offers high cooling capability. The light irradiation device comprises: an LED unit including a substrate and an LED element disposed on the substrate; and a heat-dissipating device disposed in close contact with the LED unit to dissipate heat of the LED unit, the light irradiation device characterized in that: the heat-dissipating device includes a stainless-steel pipe through which cooling water flows, and a metal support member having a first main surface in close contact with the LED unit and supporting the pipe in a longitudinal direction so as to expose a part of an outer peripheral surface of the pipe from the first main surface, the part of the outer peripheral surface of the pipe having a planar portion positioned coplanar with the first main surface, the planar portion being thermally connected to the LED unit.
Inventors:
KOBAYASHI NORIO (JP)
WATANABE HIROAKI (JP)
WATANABE HIROAKI (JP)
Application Number:
PCT/JP2022/016950
Publication Date:
October 06, 2022
Filing Date:
March 31, 2022
Export Citation:
Assignee:
HOYA CORP (JP)
International Classes:
H01L23/427; H01L23/473; H01L33/64
Foreign References:
| JP2008300158A | 2008-12-11 | |||
| JP2009010047A | 2009-01-15 | |||
| JP2009010050A | 2009-01-15 | |||
| JP2011165509A | 2011-08-25 | |||
| JP2011164633A | 2011-08-25 | |||
| JP2005317480A | 2005-11-10 | |||
| US20070001582A1 | 2007-01-04 |
Attorney, Agent or Firm:
ARAKI Yoshiyuki (JP)
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