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WSJournal. Dazzling Diodes From FireFlies. Ma

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Post# of 63835
Posted On: 01/12/2013 9:51:26 AM
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Posted By: PoemStone
Re: Shalom Star #3039

WSJournal. Dazzling Diodes From FireFlies.



Mason jars fixed with small lights mimicking lighting bugs attract real lighting bugs.


Inspired by fireflies, scientists in Belgium, Canada and France have developed a way to increase the output of light-emitting diodes by up to 55%.


Among their many uses, LEDs serve as car lights and indicator lamps in electronic devices. The researchers copied the jagged pattern of tiny scales on a firefly's lantern. These scales maximize light output by minimizing internal reflections, thereby helping flashing fireflies attract mates. Scientists aped this design by using a laser to create a saw-tooth pattern 5 micrometers high atop a standard gallium nitride LED. The result, published in the journal Optics Express, was a big increase in efficiency. The authors say that their work could show up soon in the manufacturing of LEDs.



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