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Gerber Carnivore
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VISION The vision of Solid-State Lighting is to complete the evolution of lighting from primitive fire-based technologies like candles and lanterns, to vacuum-tube and bulb based technologies like incandescent and fluorescent bulbs, and finally to semiconductor-based technologies like LEDs and lasers. OVERVIEW Dramatic changes are unfolding in lighting technology. Semiconductor light emitting diodes (LEDs), until recently used mainly as simple indicator lamps in electronics and toys, have become as bright and efficient as incandescent bulbs. They have already begun to replace incandescent bulbs in many applications, particularly those requiring durability, compactness, cool operation and/or directionality (e.g., traffic, automotive, display, and architectural directed-area lighting). Moreover, further major improvements are believed achievable. Electrical-to-optical energy conversion efficiencies over 50% have been achieved in infrared light emitting devices. If similar efficiencies were achieved in visible light emitting devices, the result would be a 200 lm/W white light source two times more efficient than fluorescent lamps, and ten times more efficient than incandescent lamps.
· Worldwide electricity consumption due to lighting could be decreased by more than 50%, and total consumption of electricity could be decreased by more than 10%. · Carbon emissions, and new capital infrastructure associated with electricity generation, would decrease proportionately, also by more than 10%. · The human visual experience would be enhanced through digital control over the color and spatial distribution of lights. And along the way, compact visible and UV light sources, useful for detection of bio-agents, will have been developed. These are exciting and rewarding challenges that will engage scientists, technologists and business people in universities, national laboratories and industry throughout the world. From Sandia National Laboratories
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