Small Area Array-Based LED Luminaire Design

Technical Report · Wed Jan 09 04:00:00 EST 2008

DOI:https://doi.org/10.2172/1014020· OSTI ID:1014020

Yuan, Thomas ^[1]

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1. Cree Incorporated

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.

• Research Organization: Cree Incorporated
• Sponsoring Organization: USDOE
• DOE Contract Number: FC26-05NT42340
• OSTI ID: 1014020
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
DESIGN
EFFICIENCY
GALLIUM NITRIDES
LIGHT EMITTING DIODES
PERFORMANCE