LEDs were designed for emission at 278nm and measured independently at ARL. SETi says the emission of 9.8mW at Led linear high bay light is the highest value ever reported for an LED shorter than 365nm at this forward current, and 30mW at 100mA.
According to Frans van Houten, CEO of Royal Philips Electronics, “We have launched some innovation projects in order to become less dependent on rare earths.” Mr van Houten explained creating the Led high bay light products will remain dependent on rare earths, it being a vital component to its efficiency. But such dependence can be lessened.
In his opinion, people cannot eliminate it of course. But in their labs thay have been able to find a way to significantly reduce the amount of rare earths which is necessary to make LED products.
Rare earths play an important role in high-tech industries, as they are widely used in manufacturing applications including aerospace, consumer electronics, automotive and telecommunications. They are abundant. But because of their geochemical properties, rare earths are dispersed and not often found in concentrated and economically exploitable forms.
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