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US 2002/0172914 A1Published application
Curing light
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. 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.
Claims19
A curing light comprising:
- a wand for grasping by a human hand in order to manipulate the curing light, said wand having a longitudinal axis and a length LW along its longitudinal axis,
- controls on said wand for controlling transmission of light from the curing light,
- an elongate heat sink located at least partially within said wand, said elongate heat sink having a proximal end, a distal end and a longitudinal axis therebetween, said elongate heat sink having a length LH,
- 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;
- wherein LH is a substantial percentage of LW.
4 more elements
A curing light comprising:
- a wand for grasping by a human hand in order to manipulate the curing light, said wand having a longitudinal axis and a length LW along its longitudinal axis,
- controls on said wand for controlling transmission of light from the curing light,
- an elongate heat sink located at least partially within said wand, said elongate heat sink having a proximal end, a distal end and a longitudinal axis therebetween, said elongate heat sink having a length LH, and
- a light emitting semiconductor device mounted at said elongate heat sink distal end, said light emitting semiconductor device having a plurality of epitaxial layers, at least one of said epitaxial layers emitting photons when bombarded by electrons.
1 more element
Dependencies are inferred from the claim text.