Optoelectronics

Powerful UVB LEDs for fluorescence microscopy

15th May 2018
Enaie Azambuja

LG Innotek has increased the performance of its UV LEDs. At the UVB wavelength of 305nm, LASER COMPONENTS has offered LEDs that achieve 110mW from a single emitter. They are used in the 6060 single-chip series as well as the 6868 series, which features four diodes integrated into one housing. Together they deliver outputs of 300mW and more. LEDs with the same power levels are also available for the UVC wavelength 278nm.

UV radiation stimulates fluorescence, which is put to use in many analytical methods such as fluorescence microscopy. In this area, UV LEDs increasingly replacing mercury vapor lamps as radiation sources.

Their advantages are that LEDs are small and long-lasting, do not require long warm-up phases or explosion-proof housing, and work without complex electronic ballast units. With continually increasing power levels, UV LEDs are becoming attractive for an increasing number of applications.

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