PHOSPHOR COMPOSITION FOR LEDS

摘要

The invention relates to a phosphor composition for LEDs with flat absorption curve in the blue spectral range (430 - 460 nm) by having a Ce (III) doped phosphor and a Eu (II) doped phosphor. The increase of absorption of the Ce(III) doped phosphor from 430 nm to 460 nm compensates the decrease of absorption of the Eu(II) phosphor leading to a wanted flattened absorption behavior of the mixture.