Ultraviolet light source for e.g. ultraviolet microscopy, has dielectric arranged between two electrodes, where one electrode includes tip directed to another electrode, such that shortest distance is defined between electrodes

摘要

The light source has a dielectric arranged between high voltage and ground electrodes (1, 2). The dielectric produces a barrier discharge by the application of high alternating current voltage between the electrodes. A discharge space between the electrodes is filled with gas that emits ultraviolet radiation. The electrode (1) has a tip directed to the electrode (2), such that a shortest distance is defined between the electrodes.