Recently in traffic signals Category

LED generic.jpgLED Lighting guides

Here in one neat package is our collection of key LED lighting articles, covering white LEDs, coloured LEDs, OLEDs and Lighting LEDs...

* White LEDs

* Coloured LEDs

* LED Lighting (1)

* LED Lighting (2)

* LEDs General

* LED Optics

* OLEDs

* Costing LEDs

* LED heatsinking

* 50 year history of the LED

wrap-around-traffic-signals.jpgThanks to Techeblog for highlighting this one - an innovative use of traffic signals involving LEDs. It writes:
Rather than install separate poles for traffic lights, why not put them on existing ones and/or trees? That's the idea behind this clever design by Gisung Han, Hwanju Jeon and Jaemin Lee. Basically, it "comes in two parts: a flexible LED belt that wraps around street furniture and a solar lid which protects it, shades it and powers it."
You can find more pictures on YankoDesign.

What's the big deal with LED traffic lights?

| 9 Comments | No TrackBacks

Someone asked me this the other day, so I'll share my answer as it involves some pretty impressive figures.

London has over 5000 traffic intersections, each one comprising an average of 10 traffic signals, making  about 50,000 signals. If those were to be converted to LED lights, the resulting saving in electricity alone (assuming a cost of 6 p per unit) turns out to be almost £1 million a year, with an annual reduction in carbon emissions of more than 9500 tonnes.

Presently, light bulbs in conventional traffic lights are changed every year, so as LEDs can be expected to last up to 10 years they would avoid up to 8 maintenance visits over their lifetime. That's a lot of cherrypickers out of work.

LED Lighting guides

See also Electronics Weekly's roundup of content related to LEDs, with a special focus on both white LEDs and coloured LEDs, and Lighting LEDs.

* White LEDs

* Coloured LEDs

* LED Lighting (1)

* LED Lighting (2)

* LEDs General

* LED optics

* OLEDs

* Costing LEDs

* 50 year history of the LED








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  • Alun Williams - Electronics Weekly.com on Wrap around Traffic Signals: That sounds believable - I guess it is one possible read more
  • Alun Williams - Electronics Weekly.com on Wrap around Traffic Signals: Maybe it is a slightly misleading headline - think pedestrian read more
  • John Henry Albert on Wrap around Traffic Signals: You could easily put a small heater into the design read more
  • LED Lights on Wrap around Traffic Signals: I like the idea of using existing poles and LED read more
  • Lighting Enthusiast on Wrap around Traffic Signals: This is an interesting design. I recently read somewhere that read more
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Author Profiles

Paul Ward
As Opto Product Manager at Farnell, Paul is overseeing the company's involvement in the rapidly evolving and high profile LED lighting market sector.

As well as ensuring that Farnell offers the latest technologies and products related to solid state lighting, Paul is also responsible for ensuring that the resources are in place to make it easier for design engineers to specify and design-in LED solutions for their applications.

Educated in Production Engineering and Design at Sheffield Hallam University, Paul has worked in various engineering, training and marketing roles for companies including C&K switches, ITT Cannon, Cherry and LED specialist Chicago Miniature Lighting.

Away from the world of LEDs, Paul is a Founder of the charity RTTW, Photographer and Harley Davidson rider; he has ridden and snapped across Europe, New Zealand and the USA on his chrome hog!

Gordon Routledge
Gordon Routledge is one of the original pioneers in LED illumination having worked with LEDs in illumination applications since 1996. Currently VP of Illumination at Dialight, Gordon founded Lumidrives in 2001, having previously been managing director at ACDC Lighting Systems. Gordon has a degree in Electrical & Electronic Engineering from university of Manchester Institute of Science and Technology.

Ian Bryant
ian bryant.jpgIan Bryant is Business Development Manager LED Division at Carclo Technical Plastics. He has worked on and off at Carclo (Formerly Combined Optical Industrial) since leaving school. He has worked through the company from Toolmaking to starting the company on the road of LED optics business some 6-7 years ago, starting with a standard range and more in line with the business of custom optics. In between all this he has worked in engineering and as a works Director for a hydraulics company but kept getting pulled back to the optics industrial. We are able to offer the full solution from idea to parts so have a very good understanding on what is needed. You will see some posts from our design team also under my name.

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This page is an archive of recent entries in the traffic signals category.

Streetlights is the previous category.

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