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LED Street Lighting in Osnabrück. Osnabrück October 2011. Marcel Haselof, Stadtwerke Osnabrück. Andreas Hänel Planetarium, Museum am Schölerberg, Osnabrück. LED lighting. rapid increase of efficiency of white light LEDs long lifetime compactness dimmable/switchable sturdy - PowerPoint PPT Presentation
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LED Street Lightingin Osnabrück
Andreas Hänel Planetarium, Museum am Schölerberg, Osnabrück
Marcel Haselof, Stadtwerke Osnabrück
Osnabrück October 2011
LED lighting • rapid increase of efficiency of white light LEDs
• long lifetime
• compactness
• dimmable/switchable
• sturdy
• more light at lower temp.
• low light pollution?
• still lower efficiency (NAV)
• expensive
• thermal management
• colour renditionTRIDONIC.ATCO
LEDs are getting more efficient, but warm < cool
DOE
4
Light colour, Man and Vision
Protected spectral range for visual astronomy(Falchi et al. 2011)
LED
Technical masterplan illumination
Richthofenweg Immelmannstraße
residential area
Pssssst!
conventional lighting
compact fluorescent
Hess Sera
• 34 W
• 2400 lm
• 5600 K
• 80 lx (brightest part)
iGuzzini Delphi
• 39 W
• lm
• 4000 K
Indal Stela
• 21 W
• 91...120...240 lm
• 4000 K
• 30 lx
Philips City Spirit LED
• 29 W
• 1400 lm
• 3000 K
• 13 lx
Trilux 9354 LED
• 24 W
• 2400 lm
• neutral white (4000 K?) daylight white (5500 K?)
• 43 lx
Hella Eco Streetline
• 45 W
• 2900 lm
• 6300 K
• 25 lx
Richthofenweg Immelmannstraße
VAT Energies Westerkappeln
Automous, photovoltaic, Savonius rotor
no power lines!
installation in Yorktown, IN
23 lx, 3500 K
17
Spectral sensitivity
Innolumis (Lemnis/Imtech)?
Mixture of red (630 nm) - green (500 nm)
Enschede/Hengelo
spectral sensitivity
Innolumis (Lemnis/Imtech) solution?
mixture of red (630 nm) - green (500nm)
Lemnis
“Auto lightmeter“
Auto - car - automatic