Patent ID: 8142188

Claim:
A separable two component light curing device and base station assembly, wherein the light curing device is used away from the base station, and after use of the light curing device it is inserted into the base station, the base station being used for cooling the light curing device after use away from the base station, the assembly comprising: a stick-like light curing device including a heat source in the form of a light source ( 38 ), a light guide ( 36 ) extending away from the heat source to the front end of the stick-like light curing device, a heat conductor ( 40 ) on which the heat source is mounted, and a metallic heat absorbing element ( 24 ) in thermally conducting connection with the heat conductor ( 40 ), the heat absorbing element being located at the rear end of the stick-like light curing device; and a base station ( 12 ) having a recess ( 16 ) for receiving the metallic heat absorbing element ( 24 ) of the stick-like light curing device ( 14 ), the base station further including a heat dissipating device ( 27 ) including a heat store ( 20 ) adjacent the recess and which lies against the heat absorbing element ( 24 ) in a good heat transfer fit when the heat absorbing element ( 24 ) of the light curing device ( 14 ) is accommodated in the base station ( 12 ) after use, the thermal capacitance of the heat store ( 20 ) being at least twice to 5 times the thermal capacitance of the heat absorbing element ( 24 ).