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Invention of blue LEDs wins physics Nobel Prize!:All Japanese excited!

The announcement of Staffan Normark, Royal Swedish Academy of Sciences,excited  us.Professors Isamu Akasaki,Hiroshi Amano and Shuji Nakamura who made the first blue LEDs in the early 1990s,get physics Nobel Prize.

As proffesror Nakamura told the press conference,”It’s unbelievable.”,I couldn’t believe my eyes.Because I didn’t know the importance of blue LEDs invention.

In the annoucement,Staffan Normark emphasized the usefulness of the invention,adding that the Nobel Prizes were established to recognise developments that delivered “the greatest benefit to mankind”.

Here are some comments reported by BBC News:

“These uses are what would make Alfred Nobel very happy,” said Prof Olle Inganas,a member of the prize committee from Linkoping University.

The committee chair, Prof Per Delsing, from Chalmers University of Technology in Gothenburg, emphasized the winners’ dedication.
“What’s fascinating is that a lot of big companies really tried to do this and they failed,but these guys persisted and they tried and tried again,and eventually they actually succeeded.

They seemed to have had tough times to reach the success.

According to the BBC,red and green LEDs had been around for many years,but blue LEDs were a longstanding challenge for scientists in both academia and industry.Without them, the three colours could not be mixed to produce the white light we now see in LED-based computer and TV screens.

Furthermore,the high-energy blue light could be used to excite phosphorus and directly produce white light which is the basis of the next generation of light bulb.

“With 20% of the world’s electricity used for lighting, it’s been calculated that optimal use of LED lighting could reduce this to 4%”

Knowing the facts,I’m ashamed of my ignorance and incuriosity about physics.

We need to offer our congratulations on these professors for their inventions.
Whenever I look on the screen of my smartphone,I’ll thank them from now on.


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