Title:
FLUORESCENT PLATE, WAVELENGTH CONVERSION MEMBER, AND LIGHT SOURCE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/251253
Kind Code:
A1
Abstract:
This fluorescent plate comprises a fluorescent phase that fluoresces due to excitation light and a plurality of voids. In a cross section of the fluorescent plate that includes cross sections of the voids, the standard deviation of the equivalent circle diameter of voids having an equivalent circle diameter of 0.4-50 μm inclusive is less than or equal to 1.5.
Inventors:
TAKAKU SHOHEI (JP)
YAMAUCHI HIROKI (JP)
BAN SHINJI (JP)
TAKEUCHI HIROKI (JP)
YAMAUCHI HIROKI (JP)
BAN SHINJI (JP)
TAKEUCHI HIROKI (JP)
Application Number:
PCT/JP2021/021146
Publication Date:
December 16, 2021
Filing Date:
June 03, 2021
Export Citation:
Assignee:
NGK SPARK PLUG CO (JP)
International Classes:
F21S2/00; F21V9/32; F21V7/26; F21V29/502; F21V29/70; F21Y115/10; F21Y115/30
Domestic Patent References:
| WO2017154413A1 | 2017-09-14 |
Foreign References:
| JP5989268B2 | 2016-09-07 | |||
| JP2017138470A | 2017-08-10 | |||
| JP5989268B2 | 2016-09-07 |
Attorney, Agent or Firm:
TANABE Junya (JP)
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