Osram brightens TOPLEDs with efficacy boost
Osram Opto Semiconductors says that improvements to the structure of its "TOPLED" range of power LED chips will allow the products to be used in applications that up until now have been dominated by traditional light sources.
Although Osram wouldn't divulge the exact nature of the new structures, the advancement is said to allow more light to be emitted through the top of the LED chip.
According to a spokesperson for the company, this improvement means that the latest InGaAlP devices are more than twice as efficient and between 50% and 70% brighter than previous generations.
In a statement issued by the company, Ellen Sizemore, Osram's director of LED products, highlighted that applying the advanced design to the Power TOPLED range had improved light output at high temperatures.
Osram now believes that it can penetrate applications such as information and advertising displays with the improved red, yellow and orange LEDs, in what has traditionally been a sector dominated by traditional light sources.
The latest InGaAlP devices are already available in large volumes. Osram told Compoundsemiconductor.net that blue, green and white GaN-based TOPLEDs with similarly increased brightness would be released within the next year.
