The American Lighting Association (ALA) and NEMA have provided requested comments to the DarkSky International Technical Committee to develop new outdoor and landscape luminaire specifications for certified dark sky luminaires, that go beyond the traditional shielding requirements. Being considered are lumen limits, chromaticity ranges, controls and light distributions. According to DarkSky, light pollution is growing by 9.6% per year, so they are also working at certifying lighting installations, as well as fixtures that minimize upward-directed light, glare, and over-lighting.
Source: ALA Engineering Committee
More information on DarkSky International is available here.
Top image: DarkSky.org
You must be logged in to post a comment.