2014-02-27

Uopia Nightlight: Better Light Means Better Sleep

The number of people experiencing sleep related issues around the globe is at an all-time high. In the United States alone, poor sleep quality has become so pervasive that the Center for Disease Control has classified it as an epidemic. Researchers have identified that short wavelength blue light in the 460 to 480 spectrum inhibit natural sleep patterns and lead to sleep disorders.
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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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