An instrument for curing light-curable compounds that comprises at least one light-emitting element operable for emitting light in a band of wavelengths is capable of curing a light-curable compound. A control circuit controls the operation of the light-emitting element. The control circuit is operable...http://www.google.com.au/patents/US20060269897?utm_source=gb-gplus-sharePatent US20060269897 - Curing light instrument
