发明名称 |
Wavelength-converting LED |
摘要 |
A wavelength-converting LED can include a light-emitting section in which an exciting element emits a blue or ultraviolet light. A fluorescent material that has a mean particle diameter D50 ranging from 5 mu m to 20 mu m and that can convert at least part of the light emitted from the exciting element into light having a wavelength longer than an exciting wavelength, can be incorporated into the LED. A dispersing agent with a mean particle diameter D50 not less than 1/10 of the mean particle diameter D50 of the fluorescent material is preferably incorporated in the LED. A binder base material can be arranged to contain the fluorescent material, the dispersing agent and a binder therein. The sum of the weights of the fluorescent material and the dispersing agent is preferably in the range of 20% to 60% by weight of said binder base material to prevent the fluorescent material from precipitating in the binder base material upon curing. <IMAGE> |
申请公布号 |
EP1507296(A1) |
申请公布日期 |
2005.02.16 |
申请号 |
EP20040018103 |
申请日期 |
2004.07.30 |
申请人 |
STANLEY ELECTRIC CO., LTD. |
发明人 |
SATO, HIROYUKI;TAYA, SHUICHI |
分类号 |
C09K11/08;C09K11/80;H01L33/32;H01L33/50;H01L33/60;H01L33/62 |
主分类号 |
C09K11/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|