LED 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
Hess AG and Thorn Lighting have signed an agreement which gives
Thorn the rights to market the Hess brand in UK & Ireland, including
Hess' entire outdoor lighting and site furnishing ranges, writes Richard Wilson.
Hess and Thorn launched their new partnership at this year's LuxLive exhibition in London in November.
By Steve Bush (click on image to expand)Last week I attended the Light + Building trade show in Frankfurt and found myself thinking that it should be renamed the LED + Building show.
LEDs were everywhere. It was actually a struggle to find a stand without LED products at the show, although in many cases they'd been simply shoehorned in to existing product lines. It's clear that the larger, market setting OEMs are starting to innovate and the vast amount of their R&D activity is now geared towards LED products. I've picked out a few key themes and trends.
All street lighting manufacturers had an LED solution at the show. A number of optics providers have dedicated street lighting optics kits - in short it's very easy to design and make an LED street lighting solution. I discussed the transition of HID to LED with a contact within Philips - they predict that the Cosmopolis HID lamp has a lead in the market for at most the next 5 years, so what they are saying is they expect the majority of new street lights to be based on LED within 5 years.
Power Integrations has released an 92% efficient LED streetlight power supply reference design, reports our Technology Editor Steve Bush. For streetlights up to 150W, the supply has a fixed output voltage of 48V at up to 3.125A.That's me having a Jeremy Clarkson moment on seeing this headline.
"Brooklyn Park residents complain LED bulbs are too dim."
The article in an American paper reports that some people in Brooklyn Park, NY say the energy-saving streetlights now being tested aren't such a bright idea. This is on the level of the New York City residents complaining that they could not see our LED Beacon light from a car on the top of the George Washington Bridge, because the flashing red light was a staple of NYC. Our light was designed to purposely reduce ground scatter, or the "non useful" light shining downwards. They actually made us re-design them a special Beacon with scatter built-in so the citizens would not complain.
At least I agree with one of the reader comments on this article:
"Remember when we had plain old incandescent lightbulbs for streetlights? They sure didn't put out any light, but they were a blast to break with snowballs."
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
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 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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