Recently in Research 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

One LED story to note, from our Research.Materials section: Kyushu University reports liquid-OLED

Writes our Technology Editor, Steve Bush:
Scientists at Kyushu University in Japan have reported liquid-OLED in a recent issue of Applied Physics Letters.
In cells sandwiched between sheets of glass - much like an LCD - Denghui Xu and Chihaya Adachi mixed hole carrier ethylhexyl carbazole with rubrene which is both an electron carrier and photoemitter.
Read the full article >>

29jul09sunlight 168.jpgWe briefly flagged, very recently, research carried out at the National Tsing Hua University in Taiwan, into organic LEDs with a full range of colour temperatures. They were capable of copying the full spectrum of sunlight throughout the day (2500 K - 8000 K) - Taiwan researchers create OLEDs with color temp spectrum of sunlight

Our Technology Editor, Steve Bush, got on the case to dig further into this work, and explain more about it. Make sure you read the resulting article - Voltage tunes OLED across all sunlight hues

The article begins:
Rensselaer Polytechnic Institute small.jpg
An LED-related article has just been posted on Electronics Weekly:

Rensselaer designs power LED retaining efficiency at high current
The US Rensselaer Polytechnic Institute has designed a power LED that retains efficiency at high current. "The device achieves a notable reduction in efficiency droop, a well-known phenomenon that provokes LEDs to be most efficient when receiving low-density currents, but then to lose efficiency as higher currents are fed into the device," said the university. Read the full story >>

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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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 Research category.

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