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Blue OLEDs Improved

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GAINESVILLE, Fla., Dec. 31, 2008 -- By setting an efficiency record for blue organic LEDs (OLEDs), researchers say they are closer to flipping the switch on cheaper, richer LED-type room lighting. University of Florida materials science engineers have announced a record for blue OLEDs. Because blue is essential to white light, the advance helps overcome a hurdle to creating a lighting source that is much more efficient than compact fluorescents but that can produce high-quality light similar to that given off by standard incandescent bulbs. “The quality of the light is really the advantage,” said Franky So, an associate...Read full article

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    Published: December 2008
    Glossary
    efficiency
    As applied to a device or machine, the ratio of total power input to the usable power output of the device.
    lumen
    A lumen is a unit of measurement used to quantify the amount of luminous flux, which is the perceived power of light. In other words, the lumen measures the total amount of visible light emitted by a light source in all directions. The lumen is a standard unit in the International System of Units (SI) for luminous flux and is denoted by the symbol "lm." The lumen is based on the sensitivity of the human eye to different wavelengths of light. It provides a measure of the total light output,...
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    bluebulbcamerasConsumerefficiencyflat panelfluorescentsFranky Sogreen photonicsincandescentinorganicLight SourcesLumenNews & FeaturesOLEDsorganicphotonicssemiconductorsSonyUniversity of FloridaLEDs

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