Price: 10.00
The mercury high pressure gas discharge lamp is the UV source which is mostly used for curing. It is a very efficient lamp to produce intense UV-C (200 - 280 nm) radiation. However, there are more and more applications as for instance strongly pigmented lacquers or thicker anti-corrosion layers where the optical paths to the photoinitiators get longer and so a long-wave UV-A is needed. Then it might be better to apply a doped high pressure lamp by which UV-A ( 315—400 nm) or UV-B (280—315 nm) or blue radiation are more efficiently produced than by means of a high pressure mercury lamp. Using such a doped UV arc lamp does not only provide for some better radiant efficiency in certain spectral ranges and higher curing speed at the same level of installed lamp power but also needs some operational care to ignite and reignite the lamp, to have a short run-up, to dim the lamp, to prevent instabilities, to maintain radiant output and to achieve a long lifetime.
