Patent ID: 6835064
Filing Date: 2004-12-28
Classification: A61C

Abstract:
A light hardening device for hardening a light hardenable mass applied for dental purposes, the light hardenable mass having a photo initiator actuable to initiate hardening of the mass upon irradiation of the photo initiator with light and the photo initiator being sensitive to light across a range of sensitivities which vary from one another at different wavelengths of a set of photo initiator wavelengths, the light hardening device comprising:a first light emitting diode for emitting light at a range of intensities which vary from one another at different wavelengths of a set of first light emitting diode wavelengths, the range of first light emitting diode intensities overlapping the range of, photo initiator light sensitivities at most only partially; and a second light emitting diode for emitting light at a range of intensities which vary from one another at different wavelengths of a set of second light emitting diode wavelengths, the range of second light emitting diode intensities overlapping the range of photo initiator light sensitivities to a relatively greater extent than the partial overlap of the range of first light emitting diode intensities with the range of photo initiator light sensitivities.