What came first: the chicken or the egg? In technical files the answer is simple: first comes the product, then the standard. In 1993, when Nichia introduced the blue LED (based on GaN), the issue of photo biological safety was taken into consideration. The International Electrotechnical Commission (IEC) decided to include LEDs in the laser product category and related norms (IEC 60825).
Researchers at the University of Illinois at Urbana Champaign have developed a new method for making brighter and more efficient green LEDs. Using an industry-standard semiconductor growth technique, they have created gallium nitride (GaN) cubic crystals grown on a silicon substrate that are capable of producing powerful green light for advanced solid-state lighting…
The Guildford Recreation Centre Aquatic Addition expands an existing facility in Surrey, BC…
This project is funded [in part] by the Government of Canada.
Ce projet est financé [en partie] par le gouvernement du Canada.
