JP4916469B2 - 蛍光体 - Google Patents
蛍光体 Download PDFInfo
- Publication number
- JP4916469B2 JP4916469B2 JP2008062750A JP2008062750A JP4916469B2 JP 4916469 B2 JP4916469 B2 JP 4916469B2 JP 2008062750 A JP2008062750 A JP 2008062750A JP 2008062750 A JP2008062750 A JP 2008062750A JP 4916469 B2 JP4916469 B2 JP 4916469B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- phosphor
- light emitting
- emitting diode
- surface roughness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims description 34
- 230000003746 surface roughness Effects 0.000 claims description 20
- 238000002834 transmittance Methods 0.000 claims description 18
- 229910010272 inorganic material Inorganic materials 0.000 claims description 12
- 239000011147 inorganic material Substances 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000011347 resin Substances 0.000 description 10
- 229920005989 resin Polymers 0.000 description 10
- 238000000926 separation method Methods 0.000 description 10
- 239000013078 crystal Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 239000002131 composite material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 238000009694 cold isostatic pressing Methods 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011163 secondary particle Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Images
Landscapes
- Luminescent Compositions (AREA)
- Led Device Packages (AREA)
Description
純度99.9%の酸化アルミニウム粉末(平均粒径:0.5μm)、純度99.9%の酸化イットリウム粉末(平均粒径:0.6μm)、酸化セリウム粉末(平均粒径:0.8μm)を、組成1at%Ce:YAG組成となるように秤量し、エタノールを分散液として、前記秤量した粉末に対して1wt%のアクリル樹脂バインダと、焼結助剤として0.5wt%のコロイダルシリカとともにボールミルによって混合し、スラリーを作製した。得られたスラリーをスプレードライヤによって造粒し、二次粒子径約50μmの造粒粉を作製した。この造粒粉を金型成形及び冷間静水圧成形によって成形し、該成形体を大気中1000℃にて脱脂仮焼した。
1a 表面(光出射面)
1b 裏面(光入射面)
Claims (2)
- Ceを含有したYAG単一相からなる単一の無機材料のみで構成されたセラミックス焼結体からなり、厚さ0.3mmにおける蛍光のピーク波長550〜590nmに対する直線透過率が73%以上83%以下であり、光出射面における表面粗さ(Ra)が0.6μm以上2.7μm以下であることを特徴とする蛍光体。
- 前記直線透過率は83%であり、前記表面粗さ(Ra)は、0.6μm以上1.4μm以下であることを特徴とする請求項1に記載の蛍光体。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008062750A JP4916469B2 (ja) | 2008-03-12 | 2008-03-12 | 蛍光体 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008062750A JP4916469B2 (ja) | 2008-03-12 | 2008-03-12 | 蛍光体 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009215495A JP2009215495A (ja) | 2009-09-24 |
JP4916469B2 true JP4916469B2 (ja) | 2012-04-11 |
Family
ID=41187682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008062750A Active JP4916469B2 (ja) | 2008-03-12 | 2008-03-12 | 蛍光体 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4916469B2 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010024278A (ja) * | 2008-07-16 | 2010-02-04 | Stanley Electric Co Ltd | 蛍光体セラミック板およびそれを用いた発光素子 |
CN104332539B (zh) * | 2013-07-22 | 2017-10-24 | 中国科学院福建物质结构研究所 | GaN基LED外延结构及其制造方法 |
JP6384893B2 (ja) * | 2013-10-23 | 2018-09-05 | 株式会社光波 | 単結晶蛍光体及び発光装置 |
JP6844081B2 (ja) * | 2016-05-24 | 2021-03-17 | 株式会社オキサイド | 蛍光体素子評価方法、蛍光体素子評価プログラム、蛍光体素子評価装置および蛍光体素子 |
US11920072B2 (en) | 2019-04-11 | 2024-03-05 | Nichia Corporation | Method for producing rare earth aluminate sintered body |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006093011A1 (ja) * | 2005-03-01 | 2006-09-08 | Kabushiki Kaisha Toshiba | 発光装置 |
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2008
- 2008-03-12 JP JP2008062750A patent/JP4916469B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2009215495A (ja) | 2009-09-24 |
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