Development Implementation of Side Emitting LED's in Exterior Automotive Signal Lighting Applications

This paper will describe photometric properties of side emitting LED devices with specific application examples relative to exterior automotive lighting. A brief overview of the light source will be presented highlighting its unique radiation pattern and physical properties. A description of the work completed to accurately characterize the radiation pattern of a specific side emitting LED will be outlined, including off-axis photometric measurements. Finally, detailed optical systems utilizing the side emitting LED's radiation pattern to build exterior lighting functions will be presented including photometric performance data.