![]() ![]() He and others note that there is plenty of room for further improving the mirrors, which could ultimately push the efficiency of the bulbs well beyond what is possible with today's lighting technologies. "This is beautiful work," says Shawn-Yu Lin, an electrical engineer and optics expert at the Rensselaer Polytechnic Institute in Troy, New York. ![]() The new-age incandescents are still far from a commercial product, but their efficiency is already nearly as good as commercial LED bulbs, while still maintaining a warm old-fashioned glow. The approach uses nanoengineered mirrors to recycle much of the heat produced by the filament and convert it into additional visible light. Researchers have come up with a way to dramatically improve the efficiency of his signature invention, the incandescent light bulb.
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