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Title:
WAVELENGTH CONVERSION ELEMENT AND OPTICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/205716
Kind Code:
A1
Abstract:
Provided is a wavelength conversion element in which peeling of a wavelength conversion layer is made less likely. The wavelength conversion element comprises a substrate and a wavelength conversion layer. The wavelength conversion layer is disposed on the substrate. The wavelength conversion layer includes an inorganic wavelength converting material that emits light of a wavelength different from that of incident light. The wavelength conversion layer includes a first layer and a second layer. The first layer is disposed on the substrate. The second layer has a portion which covers the first layer and a portion which is in contact with the substrate. The second layer includes the inorganic wavelength converting material.

Inventors:
UEKI TOMOKO
KAMADA TSUYOSHI
AOMORI SHIGERU
YUI HIDEOMI
KANNO TORU
ICHINOSE HIROKAZU
Application Number:
PCT/JP2021/002932
Publication Date:
October 14, 2021
Filing Date:
January 28, 2021
Export Citation:
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Assignee:
SHARP KK (JP)
International Classes:
G03B21/14; F21S2/00; F21V7/30; F21V9/32; F21V9/45; F21V29/502; F21V29/70; G02B5/20; H01L33/50; F21Y115/10; F21Y115/30
Domestic Patent References:
WO2019102787A12019-05-31
WO2019159441A12019-08-22
Foreign References:
JP2011171585A2011-09-01
JP2007035885A2007-02-08
JP2011134762A2011-07-07
JP2011134761A2011-07-07
JP2009506557A2009-02-12
JP2018125464A2018-08-09
JP2011040724A2011-02-24
JP2019175570A2019-10-10
JP2019174512A2019-10-10
Attorney, Agent or Firm:
INOUE Tomoya (JP)
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