Philips Lumileds offers high flux density UV LEDs
Philips Lumileds a family of high flux density LEDs in wavelengths of 380-430nm.
The Luxeon UV LEDs are designed for applications including ultraviolet curing, counterfeit detection, medical, industrial and specialty lighting.
“The UV LED market has been hampered by limited flux density and a lack of design flexibility,” said Kurosh Hashemi, Senior Product Line Manager at Philips Lumileds.
“The company addressed these limitations by introducing a compact, high-power emitter that can be tightly spaced to deliver the highest flux density to the desired medium. For example, for curing applications, 395nm emitters enable arrays of up to 38W/cm2 when driven at 1A,” said Hashemi.
The device micro-footprint is 2.2mm2, and each LED is provided in undomed form for precise optical control.
The UV LEDS are designed to accept 1A drive currents. The package uses flip chip assembly, where the chip is in direct contact with the thermally conductive AlN substrate.