发明名称 |
Efficient LED-based illumination module with high color rendering index |
摘要 |
An illumination module includes a light mixing cavity with an interior surface area and window that are physically separated from an LED. A portion of the window is coated with a first wavelength converting material and a portion of the interior surface area is coated with a second wavelength converting material. The window may be coated with LuAG:Ce. The window may also be coated with a third wavelength converting material with a peak emission wavelength between 615-655 nm where the spectral response of light emitted from the window is within 20% of a blackbody radiator at the same CCT. The LED may emit a light that is converted by the light mixing cavity with a color conversion efficiency ratio greater than 130 lm/W where the light mixing cavity includes two photo-luminescent materials with a peak emission wavelengths between 508-528 nm and 615-655 nm.
|
申请公布号 |
US8104908(B2) |
申请公布日期 |
2012.01.31 |
申请号 |
US20100717880 |
申请日期 |
2010.03.04 |
申请人 |
XICATO, INC. |
发明人 |
HARBERS GERARD;PETLURI RAGHURAM L. V. |
分类号 |
F21V33/00 |
主分类号 |
F21V33/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|