Patent ID: 6755647
Filing Date: 2004-06-29
Classification: A61C,A61N

Abstract:
A device for curing a photosensitive dental composition curable by way of irradiation with light of predetermined wavelength comprising:(a) a power supply; and (b) a radiation source coupled to said power supply and powered thereby, said radiation, source including an axial array of light emitting diodes and having a generally planar common radiation output, wherein said axial array of light emitting diodes comprises a plurality of light emitting diodes mounted about an assembly axis defined thereby at a plurality of axial distances from said radiation output of said radiation source and being further characterized in that said plurality of light emitting diodes are directed along a plurality of divergent paths through said generally planar common radiation output wherein at least two of said light emitting diodes are disposed such that their outputs are along paths which intersect at a first focal point and wherein further there is at least a third additional light emitting diode whose output is along a path which avoids said first focal point such that the plurality of divergent paths cooperate to generate a position insensitive optical field for curing said dental composition.