Ultra-powerful laser could make incandescent light bulbs more efficient

Source: http://www.engadget.com/2009/05/31/ultra-powerful-laser-could-make-incandescent-light-bulbs-more-ef/

Look, LED light bulbs are fanciful, great for Ma Earth and a fine addition to any home, barber shop or underground fight club. But let's be honest -- even the guy that bikes through blizzards to get to work and wears garb that he grew in his basement isn't apt to shell out $120 a pop to have what's likely the most efficient light bulb American dollars can buy. Enter Chunlei Guo from the University of Rochester, who has helped discover a process which could morph a traditional incandescent light bulb into a beacon of burning light without using nearly as much energy as before. In fact, his usage of the femtosecond laser pulse -- which creates a "unique array of nano- and micro-scale structures on the surface of a regular tungsten filament" -- could enable a bulb to increase output efficiency in order to emit 100-watts worth of light while sucking down less than 60-watts of power. Per usual, there's no telling when this new hotness is likely to hit the commercial realm, but one's thing for sure: we bet GE's paying attention.

[Via Physorg]

Filed under: Household

Ultra-powerful laser could make incandescent light bulbs more efficient originally appeared on Engadget on Sun, 31 May 2009 16:26:00 EST. Please see our terms for use of feeds.

Read&! nbsp;|&n bsp;Permalink | Email this | Comments