26 November 2002 Illumination-grade white LEDs
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Phosphor conversion of blue radiation from InGaN LEDs has recently gone to a new quality: white light, which is illumination grade in the sense of high color rendering and color temperatures below 4000°K. At the same time power packages taking inputs of 1 Watt or even 5 W and surpassing in efficiency small size halogen lamps have been introduced. After a short review of alternative solutions state of the art devices are described and open questions outlined.
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Gerd O. Mueller, Gerd O. Mueller, Regina Mueller-Mach, Regina Mueller-Mach, } "Illumination-grade white LEDs", Proc. SPIE 4776, Solid State Lighting II, (26 November 2002); doi: 10.1117/12.457123; https://doi.org/10.1117/12.457123

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