The incandescent light bulb has been coming under fire from
two sides in recent times. On the one side, we have LED lighting looking to
encroach into incandescent territory with brighter light and drastically
reduced power consumption. On the other side, we have seen that fluorescent technology is
being embraced increasingly by consumers.
General Electric (GE) hopes to fight off its rivals with a
reinvigorated incandescent technology. GE's Consumer & Industrial’s
Lighting division is developing an incandescent light that boosts the energy
efficiency to near-fluorescent levels. GE also claims that the increased efficiency
will not come at the expense of brightness, color and light quality.
"In addition to offering significant energy savings
comparable to CFLs, the 21st century version of Edison’s bulb provides all the
desirable benefits including light quality and instant-on convenience as
incandescent lamps currently provide at a price that will be less than
CFLs," said Kevin Nolan, VP of Technology for GE Consumer &
Industrial. We and other lighting manufacturers have been aggressive in
developing and marketing CFLs. But consumers want more options and we plan to
respond to their needs and deliver environmental benefits, too."
The high efficiency incandescent (HEI) bulbs would replace
current household incandescents ranging from 40 to 100 watts. The initial HEIs
are expected to be at least two times as energy efficient as traditional
incandescents. As the technology progresses, GE is targeting four times great
efficiency which would make it comparable to fluorescents.
quote: but the only way you can possibly increase the efficiency of that technology is to raise the operating temperature.
quote: Efficiency of a tungsten filament is a direct function of operating temperature, via Planck's law of blackbody radiation
quote: The best commercially available LEDs run about 75 lumens/watt.
quote: I'm all for this technology especially since some people cannot stand the idea of CFL's and the flicker they may produce esp with the older magnetic ballasts but the article kind of left out the cost and it would've been nice to know on how they work.