A Short History of Safety Norms For LEDs

A Short History of Safety Norms For LEDs

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).

 

 

Brighter green LEDs

Scientists Find Novel Method to Make Brighter Green LEDs

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…