Small Area Array-Based LED Luminaire Design

Yuan, Thomas

Cree Incorporated

关键词: Efficiency;    Gallium Nitrides;    32 Energy Conservation, Consumption, And Utilization;    Design;    Light Emitting Diodes;   

DOI  :  10.2172/1014020
RP-ID  :  None
RP-ID  :  FC26-05NT42340
RP-ID  :  1014020

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report contains a summary of technical achievements during a three-year project to demonstrate high efficiency LED luminaire designs based on small area array-based gallium nitride diodes. Novel GaN-based LED array designs are described, specifically addressing the thermal, optical, electrical and mechanical requirements for the incorporation of such arrays into viable solid-state LED luminaires. This work resulted in the demonstration of an integrated luminaire prototype of 1000 lumens cool white light output with reflector shaped beams and efficacy of 89.4 lm/W at CCT of 6000oK and CRI of 73; and performance of 903 lumens warm white light output with reflector shaped beams and efficacy of 63.0 lm/W at CCT of 2800oK and CRI of 82. In addition, up to 1275 lumens cool white light output at 114.2 lm/W and 1156 lumens warm white light output at 76.5 lm/W were achieved if the reflector was not used. The success to integrate small area array-based LED designs and address thermal, optical, electrical and mechanical requirements was clearly achieved in these luminaire prototypes with outstanding performance and high efficiency.