LED LIGHT SOURCE

摘要

PROBLEM TO BE SOLVED: To provide an LED light source of high efficiency with improved unevenness in color.

SOLUTION: An LED201 has a phosphor layer 202 containing phosphor formed around an LED. At least a part of the emission from the LED201 is wavelength-converted and radiated by the phosphor in the phosphor layer. A phosphor layer thickness 202 is 10-1000 μm and the phosphor layer contains fine particles by 25-50 wt.%, for the LED light source of improved efficiency and unevenness in color.

COPYRIGHT: (C)2006,JPO&NCIPI