Patent ID: 7022263
Filing Date: 2006-04-04
Classification: C09K,H01J

Abstract:
1. An europium-activated oxide phosphor comprising a compound having a formula of (Gd 1-x-y Y x La y )(Al 1-z-v Ga z In v )O 3 : Eu 3+ ; wherein 0≦x, y≦1; 0≦x+y≦1; each of z and v is less than 1, with the proviso that 0<v<1 when 0≦z<1, and 0<z<1 when 0≦v<1; and at least two of 1−z−v, z, and v are greater than zero; said phosphor being capable of absorbing UV radiation and emitting in a visible wavelength range from about 580 nm to about 770 nm; wherein europium is present in an amount from about 0.0005 to about 20 mole percent, and said phosphor being capable of absorbing at least 70 percent of exciting UV radiation at wavelength of about 254 nm.