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Title:
WAVELENGTH CONVERSION MEMBER FOR SOLDERING, WAVELENGTH CONVERSION DEVICE, AND LIGHT SOURCE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/010273
Kind Code:
A1
Abstract:
This wavelength conversion member for soldering comprises a ceramic phosphor for converting the wavelength of light that is incident from an incidence surface thereof, a reflecting layer which is disposed on a back surface on the reverse side from the incidence surface of the ceramic phosphor and which covers all or a portion of the back surface, and a joining layer comprising one or more films for covering at least the reflecting layer from among the reflecting layer and the back surface of the ceramic phosphor, the joining layer having a protruding part which protrudes with respect to an outer peripheral section in the center section of at least the surface of the joining layer on the reverse side from the surface on the side thereof that covers the reflecting layer from among the reflecting layer and the back surface.

Inventors:
YATSUYA YOSUKE (JP)
ARAKAWA RYUICHI (JP)
SAKURAI TOSHIYUKI (JP)
ITO TSUNEYUKI (JP)
TAKEUCHI HIROKI (JP)
TANAKA TOMOO (JP)
KATSU YUSUKE (JP)
Application Number:
PCT/JP2020/026823
Publication Date:
January 21, 2021
Filing Date:
July 09, 2020
Export Citation:
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Assignee:
NGK SPARK PLUG CO (JP)
International Classes:
G02B5/20; F21V9/30
Domestic Patent References:
WO2012026206A12012-03-01
Foreign References:
JP2019105763A2019-06-27
Attorney, Agent or Firm:
TANABE Junya (JP)
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