High-power phosphor-converted light-emitting diodes based on III-Nitrides

Phosphor conversion of light-emitting diode light for white light sources and some monochrome applications requires particular phosphor properties and has to take into account specific issues if aimed at high-power output. Limitations and solutions will be discussed, giving special considerations to drive and temperature dependencies. Efficiencies of 32 lm/W for white with good color rendering at 4600 K and 35 lm/W for green (535 nm) have been demonstrated.

[1]  Regina Mueller-Mach,et al.  White-light-emitting diodes for illumination , 2000, Photonics West - Optoelectronic Materials and Devices.

[2]  Nadarajah Narendran,et al.  Characterizing white LEDs for general illumination applications , 2000, Photonics West - Optoelectronic Materials and Devices.

[3]  Shuji Nakamura,et al.  The Blue Laser Diode: GaN based Light Emitters and Lasers , 1997 .

[4]  Paul S. Martin,et al.  Illumination with solid state lighting technology , 2002 .