« Accelerando | Main | Solar Flight »

Improvement to LED Efficiency

It's becoming increasingly clear that the (very near) future of lighting is solid-state. Light Emitting Diodes are already among the most energy-efficient illumination technologies. Now researchers at Rensselaer Polytechnic Institute have devised a way to boost the light output from white LEDs by up to 60% without changing power requirements. How do they do it? A specially-shaped lens prevents "backscatter" photons from being reabsorbed by the diode. The main downside is that it makes the LED larger; it's as yet unclear how much of a problem that will really be, however. Commercial application of the idea should be hitting the shelves within a couple of years.


This page contains a single entry from the blog posted on June 16, 2005 5:10 PM.

The previous post in this blog was Accelerando.

The next post in this blog is Solar Flight.

Many more can be found on the main index page or by looking through the archives.

Powered by
Movable Type 3.34