DENTAL LIGHT DEVICE
First Claim
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1. A light device for curing a dental composition, comprising:
- a light-source;
a housing;
a passive heat sink;
a first thermal pathway enabling heat transfer between the light source and the heat sink, wherein in the first thermal pathway thermal conduction dominates over a total of thermal convection and thermal radiation;
the passive heat sink being substantially hermetically enclosed in the housing; and
a second thermal pathway enabling heat transfer between the heat sink and the housing, wherein in the second thermal pathway a total of thermal radiation and thermal convection dominates over thermal conduction.
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Abstract
A light device for curing a dental composition, comprising a light-source, a housing, a passive heat sink, first and second thermal pathways enabling heat transfer between the light source and the heat sink as well as between the heat sink and the housing. The first thermal pathway is dominated by thermal conduction, and the second thermal pathway is dominated by thermal radiation and thermal convection. The invention helps to provide an inexpensive and compact design of the device.
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Citations
16 Claims
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1. A light device for curing a dental composition, comprising:
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a light-source; a housing; a passive heat sink; a first thermal pathway enabling heat transfer between the light source and the heat sink, wherein in the first thermal pathway thermal conduction dominates over a total of thermal convection and thermal radiation; the passive heat sink being substantially hermetically enclosed in the housing; and a second thermal pathway enabling heat transfer between the heat sink and the housing, wherein in the second thermal pathway a total of thermal radiation and thermal convection dominates over thermal conduction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification