2015-12-29

Queen’s Necklace in India Reverts to Sodium Vapor Streetlights

After celebrating its centennial birthday earlier this month, the iconic golden’s Queen’s Necklace on the Marine Drive in Mumbai will be reclaiming its lost glow by bringing back sodium vapor lights, reported Indian media Mid Day.
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For three decades, white LEDs have depended on rare earth materials such as yttrium aluminum garnet (YAG) layered onto a blue LED chip (Figure 1). Seoul Viosys Co., Ltd. (KOSDAQ: 092190) today announced that it has broken that dependence. It h... READ MORE

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