发明名称 |
RARE EARTH-ALUMINUM-GARNET-TYPE INORGANIC OXIDE, PHOSPHOR, AND LIGHT-EMITTING DEVICE USING SAID PHOSPHOR |
摘要 |
An inorganic oxide has a composition represented by General formula: M 2 LnX 2 (AlO 4 ) 3 (where M includes Ca, Ln includes Eu, and X includes at least either one of Zr and Hf). Then, a crystal structure of the inorganic oxide is a garnet-type structure. Eu 3+ in the inorganic oxide emits a plurality of bright line-like fluorescent components, and a principal bright line of the fluorescent component is present within a wavelength range of 600 nm or more to less than 628 nm. Moreover, a maximum height of the bright line present within a wavelength range of 700 nm or more to less than 720 nm is less than 60% of a maximum height of the principal bright line. A phosphor composed of the inorganic oxide can emit narrowband red light with good color purity. |
申请公布号 |
EP2966149(A1) |
申请公布日期 |
2016.01.13 |
申请号 |
EP20140760290 |
申请日期 |
2014.02.27 |
申请人 |
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. |
发明人 |
OSHIO, SHOZO;SATO, NATSUKI |
分类号 |
C09K11/80;C01G25/00;C01G27/00;H01L33/50 |
主分类号 |
C09K11/80 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|