MIT Recycles Light With New Incandescent Light Bulb Incandescent and LED bulbs. Scott Olson, Getty Images.

MIT Recycles Light With New Incandescent Light Bulb

While the lighting design community appreciates the bright, clean light of energy-efficient LEDs, it has also lamented that LEDs lack the warm, tungsten glow of incandescent light. But now, researchers at MIT in Boston are revitalizing the century-old technology of incandescent light bulbs, making them more efficient for modern standards.

MIT physicists have developed a new light bulb that "recycles light." The process takes the energy that usually is wasted as escaped heat, and redirects it back to the light-emitting filament wrapped in a photonic crystal, where it is reabsorbed and converted into light, according to MIT News.

The first proof-of-concept prototype achieved 6.6% efficiency, within the same 5-20% efficiency range of compact LEDs. Research suggests that the technology could achieve 40% efficiency, a far cry from the 2 to 3% efficiency of incandescent light bulbs, according to MIT News.

Share your thoughts on this new light bulb that emits a warm glow at a higher efficiency in the comments section below.

For the full article, visit MIT News.

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.