Back to results
US 6,783,362 B2Granted
Dental curing light using primary and secondary heat sink combination
AssigneeCAO Group, Inc.
InventorDensen Cao
Life of this patent
Estimating the term…
Abstract
A curing light system useful for curing light activated composite materials is disclosed. The system includes a light emitting semiconductor device, a primary heat sink and a secondary heat sink. Various configurations of light emitting semiconductor chips and heat sinks are disclosed, as well as various structures and methods for driving, controlling and using them.
Claims20
A dental curing light comprising:
- a light module,
- an elongate heat sink located in said light module, said elongate heat sink having a proximal end, a distal end and a longitudinal axis therebetween, said elongate heat sink being part of said light module,
- a mounting platform located at said elongate heat sink distal end,
- a primary heat sink mounted to said mounting platform, said primary heat sink being smaller in overall volume than said elongate heat sink,
- a well located on said primary heat sink, and
- a light emitting semiconductor device mounted in said well of said primary heat sink;
- and
- wherein said mounting platform is oriented so that light emitted from said light emitting semiconductor device is emitted at generally a 30 to 150 degree angle to said elongate heat sink longitudinal axis.
5 more elements
A dental curing light comprising:
- a light module,
- an elongate heat sink located in said light module, said elongate heat sink having a proximal end, a distal end and a longitudinal axis therebetween, said elongate heat sink being part of said light module,
- a mounting location located at said elongate heat sink distal end,
- a primary heat sink mounted to said mounting location, said primary heat sink being smaller in overall volume than said elongate heat sink,
- a light emitting semiconductor device mounted to said primary heat sink at said mounting location;
- and
- wherein said mounting location is oriented so that light emitted from said light emitting semiconductor device is emitted at generally a 30 to 150 degree angle to said elongate heat sink longitudinal axis.
4 more elements
A dental curing light comprising:
- an elongate heat sink, said elongate heat sink having a proximal end, a distal end and a longitudinal axis therebetween,
- a light emitting semiconductor device mounted in a fixed position with respect to said primary elongate heat sink;
- wherein said light emitting semiconductor device emits at least some light that travels in a direction that is in the range of a 30 to 150 degree angle to said elongate heat sink longitudinal axis.
Dependencies are inferred from the claim text.