Laser boosts light bulb efficiency

Published in Physics World, 2 Jun 2009

The prevalence of cold, blue energy-saving light bulbs might soon begin to fade. That’s according to researchers in the US, who claim to have discovered how to make traditional incandescent bulbs 100% efficient.

“Many people still love incandescent light bulbs because they create the most pleasant light and are cheaper to buy,” Chunlei Guo of the University of Rochester, New York, told physicsworld.com. “The downside is the low efficiency of the conventional incandescent bulbs. This research addresses that very problem.” […]

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