A device for curing a photosensitive dental composition curable by way of
irradiation with light of predetermined wavelength includes a power
supply; and a radiation source coupled to the power supply and powered
thereby, the radiation source having a radiation output and including an
axial array of light emitting diodes. The light emitting diodes are
mounted about an assembly axis defined thereby at a plurality of axial
distances from said radiation output of the radiation source and being
further characterized in that the plurality of light emitting diodes are
directed along a plurality of divergent paths such that a position
insensitive optical field is generated for curing the dental composition.