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Glare in LED Outdoor Lighting

Many of the applications where SSL has experienced rapid adoption have incumbent light sources with high brightness and glare potential, such as high-intensity discharge lamps for street and parking lot lighting and halogen lamps for PAR and MR applications. The inherently high brightness and small size of LED sources create significantly higher glare potential compared to incumbent technologies, and this concern will only worsen as SSL sources achieve higher output at higher efficacy. To help address this issue, the Metrics and Standards task area is supporting involvement on several related committees, and plans to initiate new human factors research in the near future. Current committee involvement includes:

  • CIE JTC7
  • CIE TC4-52, Lighting for Pedestrians
  • IES Lighting for Outdoor Public Spaces 

Metrics and Test Methods