Top prize for 'light' inventor
A Japanese scientist who invented environmentally friendly sources of light has been awarded this year's Millennium Technology Prize.
Professor Shuji Nakamura was given the 1m Euro (£680,000) prize at a ceremony in Helsinki, Finland.
The award recognised his inventions of blue, green and white light-emitting diodes (LEDs) and the blue laser diode.
White LEDs could provide a sustainable, low-cost alternative to lightbulbs, especially in developing countries.
His other inventions such as blue LEDs are used in flat-screen displays,...
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