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
