LED based ultraviolet light source

Abstract

Within a Freescale competition there has been an UV light source created at the Tomas Bata University, Faculty of Applied Informatics. This source is supposed to be at the disposal of students who, working on their projects, need to create printed circuit boards. This source employs ultra violet LEDs which, compared to a conventional mercury lamp, makes it advantageous in several aspects: significant decreasing of power consumption, stable and uniform light flux, possibility of setting the proper exposure by means of setting the exposure time and enhancing the safety of use, because the construction of the source assures that the user cannot be exposed to the ultraviolet light on no condition.