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High-Power LEDs Pose Safety Hazards

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Before standards are in place, users must be aware of safety issues and advice.

Geoff R. Davies, Lucid Optical Services Ltd.

Because LEDs are so often used as indicator lamps on electronic equipment and in low-power lighting applications such as flashlights, Christmas decorations or rear lamps on bicycles, you might think that they are not hazardous to the eyes. However, high-power LEDs have been developed for uses such as streetlights and car headlights, and these certainly can cause retinal damage if used inappropriately. The output of an LED intended for lighting is usually quoted in lumens. Modern high-power devices, such as the Luxeon K2 line or the Cree Xlamp 7090 XR-E series, can produce more than 100 lm...Read full article

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    Published: February 2007
    Glossary
    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...
    CommunicationsConsumerelectronic equipmentFeaturesindicator lampsLight SourcesphotonicsLEDs

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