Blue led - 20th anniversary of Cree's commercialisation

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blue led old jpg.jpgThanks to Ginny from the Cree 'Lighting the LED Revolution' blog for flagging this one - the 20th anniversary of the commercialisation of a blue LED, following red and green LEDs and thus enabling a fuller colour spectrum, including white lighting...
"What were you doing in 1989? Maybe you were rocking out to "Don't Worry, Be Happy," the Grammy-award winning hit of the year. Perhaps you were killing time playing Tetris on the newly-released Nintendo Game Boy," she begins.
blue led new.jpgA highlight of the interview is his contrasting of a blue led circa 1990/1 (above) with a modern day counterpart (left). Both run from 3V but there's a 3-4,000x increase in brightness, from 8-9µW to 30mW.

See the difference in this video of the interview:



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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

* 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.

About this Entry

This page contains a single entry by Alun Williams - Electronics Weekly.com published on December 18, 2009 2:00 PM.

LED traffic lights and unintended consequences was the previous entry in this blog.

Most read LED Luminaries posts in December is the next entry in this blog.

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