Title:
SINTERED PHOSPHOR, LIGHT-EMITTING DEVICE, LIGHTING DEVICE AND VEHICLE INDICATOR LAMP
Document Type and Number:
WIPO Patent Application WO/2018/021418
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a sintered phosphor having a high internal quantum efficiency and high transmittance. To solve the problem, this sintered phosphor includes a nitride phosphor and a fluoride inorganic binder, wherein when viewed in a cross-section inside the sintered phosphor, the sintered phosphor includes at least, a portion, in which the number of voids which have a size of 1 μm or less and are included within a cross-sectional area of 0.046 mm2 is 700 or less, or a portion, in which the area fraction of voids within a cross-sectional area of 0.046 mm2 is 3% or less.
Inventors:
HARADA TAKASHI (JP)
MIYAMOTO YUKIHIRO (JP)
HORIBE KENTAROU (JP)
MIYAMOTO YUKIHIRO (JP)
HORIBE KENTAROU (JP)
Application Number:
PCT/JP2017/027070
Publication Date:
February 01, 2018
Filing Date:
July 26, 2017
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
C09K11/79; C09K11/08; H01L33/50
Domestic Patent References:
| WO2009154193A1 | 2009-12-23 | |||
| WO2013073592A1 | 2013-05-23 | |||
| WO2013136804A1 | 2013-09-19 |
Foreign References:
| JP2012072330A | 2012-04-12 | |||
| JP2012072331A | 2012-04-12 | |||
| JPH01242687A | 1989-09-27 | |||
| JPH0516756A | 1993-01-26 | |||
| JP2009249445A | 2009-10-29 | |||
| JP2010235912A | 2010-10-21 |
Other References:
See also references of EP 3492556A4
Attorney, Agent or Firm:
KAWAGUCHI, Yoshiyuki et al. (JP)
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