Halogen Lamp Design Life Improvement for Automotive Applications

This paper presents recent developments in incandescent halogen lighting technology with emphasis on the improvements made to operating life. Prior research indicated that the current predominant forward lighting source types could be redesigned with significant gains in rated life without major impact on operating characteristics. The automotive manufacturers were among the main drivers for the redesign effort. They are offering longer vehicle warranty periods and are seeking ways to provide cost effective solutions to minimize the impact of extended warranty coverage.