Published today 13:14
Isamu Akasaki and Hiroshi Amano from Nagoya University in Japan, and Shuji Nakamura of the University of California at Santa Barbara in the United States receive the Nobel Prize in Physics for the developed blue LEDs. Dagens Nyheter’s science editor Mary Gunther explains the importance of their research.
Isamu Akasaki and Hiroshi Amano from Nagoya University in Japan, and Shuji Nakamura of the University of California at Santa Barbara in the United States receive the Nobel Prize in Physics for the developed blue LEDs. Dagens Nyheter’s science editor Mary Gunther explains the importance of their research.
Why is the discovery important?
- Blue LED gives us, among many other things an opportunity to get white light, environmentally friendly and energy efficient. Diodes that glow red and green was invented in the 1960s, but to get the LEDs that glow blue was much more difficult. Together diodes in various colors give white light, which we usually want in lamps and other lighting. The lights are additionally low energy consumption and live a long time is another good feature.
What does the discovery for us
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- The discovery has completely revolutionized the lighting technology, and the LEDs are everywhere: in lamps, mobiles, computer monitors and in many other places.
Today is about a quarter of the world’s electricity consumption due to lighting. As the LEDs provide plenty of light for little electricity will many more to get the lights, even if they have little access to electricity. This is really a price according to Alfred Nobel’s intentions: an innovation to the benefit of mankind.
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