New development could lead to more effective lightbulbs
Source: BBC
New development could lead to more effective lightbulbs
By Matt McGrath
Environment correspondent
12 January 2016 Science & Environment
US researchers say they have developed a technique that can significantly improve the efficiency of the traditional incandescent lightbulb.
These older bulbs have been phased out in many countries because they waste huge amounts of energy as heat.
But scientists at MIT have found a way of recycling the waste energy and focussing it back on the filament where it is re-emitted as visible light.
The development has been reported in the journal Nature Nanotechnology.
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In theory, the crystal structures could boost the efficiency of incandescent bulbs to 40%, making them three times more efficient than the best LED or CFL bulbs on the market.
The researchers have built their first proof-of-concept units which reach an efficiency of 6.6%, but even that is almost three times the level of a standard incandescent bulb.
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Read more: http://www.bbc.com/news/science-environment-35284112
Related: Tailoring high-temperature radiation and the resurrection of the incandescent source - Nature Nanotechnology
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... and if they could apply it to halogen bulbs, that could be a serious boost
for low power high output applications ...
Thanks for posting it!
