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Purdue professor inventing a new incandescent light bulb

WEST LAFAYETTE, Ind. (WLFI) — Incandescent light bulbs were once a popular way to light up homes and businesses, but use of those types has slowly faded due to more efficient light bulbs like LEDs.

However, Purdue professor Peter Bermel has come up with an invention to make incandescent bulbs a better source of lighting.

“If you could prevent it from emitting all that heat and it would just emit photons, that would cut the energy consumption enormously,” said Bermel.

That’s exactly what Bermel has done. He and his team have created a filter to recycle wasted photons that could improve the bulbs efficiency by 10 times.

“Although certainly there’s been a lot of progress with LED, and I don’t want to downplay that, but on the other hand incandescent bulbs are known to render colors in the most vast in natural light,” explained Bermel. “So it looks most natural to the human eye. My sense is that LEDs will still play a very important role in the future, but this could have certain special applications that LEDs don’t have quite the performance that’s needed.”

Bermel and his research team are still in the early stages. He said they have a lot of work to do, especially when it comes to cost.

“When we made those filters they cost on order of $6000, so this is not by itself something you would pick up at Wal-Mart,” said Bermel. “The question is how much lower could we get the cost and still get the performance. I think that we’ve demonstrated that this works, but we still have to look down the road is this going to be practical solution.”

Bermel hopes to eventually have a big partner with the invention. He hopes it’s used to help the environment as well as energy sources.

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