CPC-Type Reflector Designs for LED DRL and Front Turn Signal Lighting

Reflector designs using high-flux LEDs, with application to Daytime Running Lamp (DRL) and Front Turn Signal Lamp (FTSL), were presented at the 2005 SAE Conference^[1]. In an attempt to further optimize system efficiency when using high-flux LEDs, we have studied additional reflector designs using Compound Parabolic Concentrator (CPC) optics. In this paper we will present results of such studies, and discuss reflector collection efficiency, overall system efficiency, and package size.