Lamina's white LED array hits 28 kilolumen mark
The New Jersey firm Lamina Ceramics claims to have developed a white-LED array that emits 28000 lumens.
The 5-inch square module, which consumes 1.4 kW in power, is said to be twice the brightness of the red-green-blue light source Lamina unveiled last year (see related story).
Called "Aterion White", the array contains 1120 LEDs. Its color-corrected temperature is 5500 K, while the color rendition index is rated at 80.
"This development positions us as the only provider of ultrahigh-lumen LED light engines," said Lamina CEO Taylor Adair.
"10000 lumen light engines were thought to be impossible to manufacture because of the heat build-up. Our technology enabled us to break that barrier."
To keep the LEDs relatively cool, Lamina uses technology that it has licenced from Sarnoff Corporation called low-temperature co-fired ceramic-on-metal, or LTCC-M for short.
A light fixture based on the array would require extensive housing, optics and a cooling mechanism.
Ian Ferguson, an LED specialist at the Georgia Institute of Technology, believes that the development will help solid-state sources to penetrate the general lighting market:
"[To penetrate general illumination] LED sources must be brighter and must retrofit into existing fixtures. Lamina is demonstrating that with proper thermal management, extremely bright, cost-effective LED light sources can be manufactured."