Broadband UV LED sources (UVC, UVB, and/or UVA) can be produced to provide stable and high-power illumination for a wide range of spectroscopy or decontamination applications. Unlike traditional UVC LEDs or deuterium/mercury bulbs, our phosphor-converted full spectrum UV LEDs are built using advanced solid-state lighting technologies involving UVC LEDs and UVA/UVB and/or Vis-NIR phosphors. The sources can be DC-powered while covering the spectral range from 250nm to >850nm. They can be provided with heat sinks, controllers and/or internal feedback systems to achieve highly stable output by automatically monitoring the board temperature to adjust the LED intensity. Heatsinks protect the LEDs from thermal damage and help minimize phosphor thermal quenching.
A broadband UV LED source is ideal for compact and portable sterilization applications, optical absorbance, reflectance, and transmission measurements. They consume significantly less electrical power and generate less heat and more optical output compared to traditional UV sources. Typical UV sources such as deuterium lamps, for example, can consume around 25W while producing less than 1mW of optical power. A typical broadband UV LED source can consume less than 3W while delivering 100s of mW in optical power. With a small footprint, they can also be integrated into a wide range of optical equipment or be used as part of a detector calibration system. The only power supply needed is an external DC power source, which can also be provided.
Phosphor-converted high power broadband UV LED source