1 / 15

An Outdoor Lighting Revolution – The Transition to Solid-State LED Lighting

An Outdoor Lighting Revolution – The Transition to Solid-State LED Lighting. Terry McGowan International Dark-Sky Association lighting@ieee.org. The First Electric Outdoor Lighting. NYC 1879 - 1881. Menlo Park, NJ December 31, 1879.

totie
Download Presentation

An Outdoor Lighting Revolution – The Transition to Solid-State LED Lighting

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. An Outdoor Lighting Revolution – The Transition to Solid-State LED Lighting Terry McGowan International Dark-Sky Association lighting@ieee.org

  2. The First Electric Outdoor Lighting NYC 1879 - 1881

  3. Menlo Park, NJ December 31, 1879

  4. Incandescent “Radial Wave” Luminaire 1940s 4

  5. Standard Full Cutoff “Cobra Head” Street Lighting Luminaires

  6. Lights of San Diego from Mt. Palomar

  7. Environmentally-Sensitive Outdoor Lighting 7

  8. LED-powered Roadway Lighting LED-Powered Roadway Lighting

  9. I-35 Bridge LED Lighting - Minneapolis

  10. LED Lighting – Lantern Retrofit

  11. LED Roadway and Area Lighting

  12. Correlated Color Temperature (CCT) - Kelvin Scale High Efficiency LED Metal Halide Incandescent High Pressure Sodium

  13. High CCT Light Source Issues: • More Glaring • Greater Scattering of Light • Higher Impact on Circadian - --- Rhythms 13

  14. Quality Outdoor Lighting Requirements • See the effect, not the source • No glare! • Light only where and when needed • Shine the light down • Don’t over light • Choose low CCT light sources (4000 Kelvins max.) • Use energy efficient sources & Systems

  15. Terry McGowan, International Dark-Sky Association www.darksky.org lighting@ieee.org

More Related