OCT 7

Nobel Prize Awarded for Blue LEDs

Written by on October 7, 2014

blueLEDs
The Nobel Prize in physics this year has been awarded to three scientists, Isamu Akasaki, Hiroshi Amano, and Shuji Nakamura, for their work in the development of the blue LED.

LEDs were first developed in the early 20th Century, and the first practical, commercial LEDs were brought to the market in the 1960s.  However, the earliest LEDs were red or orange.  The development of blue LEDs was crucial to the ability to make “white light” LEDs, which combine blue, green, and red (or sometimes blue and yellow) to create an acceptable light source for general illumination.  The high efficiency of LED light bulbs and LED displays which we enjoy today stems from this research work.

As the Nobel committee noted, “As about one fourth of world electricity consumption is used for lighting purposes, the LEDs contribute to saving the Earth’s resources.”  With the increased use of LEDs for lighting, demand for electricity is reduced.  We salute these three as EcoGeeks of the highest order.

link: Nobel Foundation Press Release

image: CC BY-SA 3.0 by Gussisaurio/Wikimedia Commons

 



3 responses to “Nobel Prize Awarded for Blue LEDs”

  1. ProWeb365 says:

    The key advantage of their invention 20 years ago is the production of light with far less waste of electrical energy than with preceding technologies like incandescent and fluorescent lights, the Royal Swedish Academy of Sciences said in awarding the prize.

  2. While I personally think this bluelight LED is phenomenal news for developing nations where electricity is more expensive than it is for the developed world, there are those out there (see http://www.nytimes.com/2014/10/09/opinion/the-problem-with-energy-efficiency.html) that think that this type of technology which makes electricity cheaper will actually lead to more earning a fossil fuels.

    Only in America would we be so arrogant as to downplay technological advancements that improve the lives of impoverished people around the world. Makes me sick.

  3. Micheal says:

    I hope more and more companies today will opt to led lights because it is safe to our environment and we conserve more energy than any ordinary light bulbs.