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Warmer light from OLEDs
Gainesville, Fla. (UPI) Jan 2, 2009 University of Florida researchers say they're getting closer to creating LED-type room lighting that is as warm as an incandescent bulb. Lead investigator Franky So, an associate professor of materials science and engineering, said his team has achieved a record for efficiency of blue organic light-emitting diodes, called OLEDs. The blue OLEDs achieved a peak efficiency of 50 lumens per watt, which is a significant step toward the goal of a white light with efficiency higher than 100 lumens per watt, the university said. The report said differently colored OLEDs can be combined to produce different shades of light. "The quality of the light generated can easily be tuned by using different color emitters" he said. "You can make it red, green, blue or white." Share This Article With Planet Earth
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Foundation turns rubbish into legs for Thailand's needy
Nakhon Pathom, Thailand (AFP) Jan 2, 2009Twelve-year-old Matoha Dosare was born with no right leg, but thanks to recycled soft drink cans and some old stockings, he now has a new limb and new-found independence. |
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