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The story of a new light source

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Abstract

Since its humble origins as a red indicator on electronic goods, the LED has come a long way and the latest white-light versions are now surpassing the efficiency of fluorescent lamps.

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Figure 1: Since the invention of the red LED in the late 1960s, every 10 years the light output per device has increased by a factor of 20 while the cost per lumen has fallen by a factor of 10.

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  1. Optoelectronic Programs, Strategies Unlimited, 201 San Antonio Circle, Suite 205, Mountain View, 94040, California, USA

    Robert V. Steele

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  1. Robert V. Steele
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Steele, R. The story of a new light source. Nature Photon 1, 25–26 (2007). https://doi.org/10.1038/nphoton.2006.44

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  • DOI: https://doi.org/10.1038/nphoton.2006.44

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