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Heat sink for dental curing light comprising a plurality of different materials

  • US 7,056,116 B2
  • Filed: 10/26/2004
  • Issued: 06/06/2006
  • Est. Priority Date: 10/26/2004
  • Status: Expired due to Fees
First Claim
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1. A dental curing light comprising:

  • an elongated housing having a proximal end and a distal end;

    at least one light source disposed at the distal end of the housing, the light source and distal end being configured so as to be easily inserted into a patient'"'"'s mouth when using the curing light to cure a dental composition;

    an elongated heat sink, disposed within said housing, said elongated heat sink comprising a first portion adjacent to said light source and a second portion separated from the light source, and wherein the elongated heat sink is further comprised of;

    a first layer comprising a first material having a first specific heat and a first thermal conductivity;

    a second layer comprising a second material different from said first material, said second material having a second specific heat and a second thermal conductivity;

    wherein the first layer surrounds the second layer so that the second layer forms a core within the first layer of the elongated heat sink, with the first layer contacting the light source; and

    wherein said first thermal conductivity is greater than said second thermal conductivity, and said second specific heat is greater than said first specific heat.

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