UV curing system with a barrier discharge excimer lamp

UV curing system with a barrier discharge excimer lamp. (Courtesy of Heraeus Noblelight.) 

The nature of this design of excimer UV lamps makes them particularly effective in flexo and offset printing. The advantages cited in these applications are  

Due to relatively low UV radiant power of these types of lamps, nitrogen inerting has to be used,i which increases the operating cost. 

Fusion Systems (Gaithersburg, MD) at one time offered 240 W/cm microwave-driven excimer lamps within its VIP (Versatile Irradiance Platform) series. They were among the most powerful sources of UV radiant power,i available 

Xenon lamps are available mainly as tubular and point source bulbs. The radiation produced by this type of lamps is not particularly rich at wavelengths below 400 nm, and therefore their applications are somewhat limited. However, it is possible to pulse xenon lamps, which enables them to achieve high peak irradiances. Commercially available pulsed xenon lamps are available with emissions in the UV and visible spectral range. Alternating the gas fill can produce output rich in UV. 

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