Evaluating Near-Horizontal Light Emission from Outdoor Lighting
Evaluating Near-Horizontal Light Emission from Outdoor Lighting DarkSky International – Tucson, AZ March 16, 2026 Executive Summary Upward-emitted outdoor light has long been identified as a source of atmospheric light pollution, a.k.a. sky glow. This form of light...
Blue Light Hazards and Television
Ian Ashdown, P. Eng., FIES, Senior Scientist, SunTracker Technologies Ltd. Published: 2017/05/19 If you have grandchildren, you may be old enough to remember “black and white” (that is, monochrome) televisions sets with rabbit ear antennae and some of...
Blue Light Hazard… Or Not?
Ian Ashdown, P. Eng., FIES, Senior Scientist, SunTracker Technologies Ltd. Published: 2014/11/05 As a professional lighting designer, you will likely have read about the “blue light hazard” associated with white light-emitting diodes. You will have seen...
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