US 6,981,867 B2
Curing light
Densen Cao, Sandy, Utah (US)
Assigned to Cao Group, Inc., Sandy, Utah (US)
Filed on Feb. 05, 2002, as Appl. No. 10/72,659.
Application 10/072659 is a continuation in part of application No. 10/016992, filed on Dec. 13, 2001.
Application 10/016992 is a continuation in part of application No. 10/017272, filed on Dec. 13, 2001, granted, now 6,783,362.
Application 10/017272 is a continuation in part of application No. 10/017454, filed on Dec. 13, 2001.
Application 10/017454 is a continuation in part of application No. 10/017455, filed on Dec. 13, 2001.
Application 10/017455 is a continuation in part of application No. 09/405373, filed on Sep. 24, 1999, granted, now 6,331,111.
Claims priority of provisional application 60/304324, filed on Jul. 10, 2001.
Prior Publication US 2002/0168604 A1, Nov. 14, 2002
This patent is subject to a terminal disclaimer.
Int. Cl. A61C 3/00 (2006.01)
U.S. Cl. 433—29 15 Claims
OG exemplary drawing
 
1. A curing light comprising:
a wand adapted to be grasped by a human hand for use in positioning and manipulating the curing light,
a light module,
said light module including a heat sink, said heat sink being configured to assist in heat dissipation,
a major well located in said heat sink,
a plurality of sub-wells located in said major well of said heat sink,
a plurality of light emitting semiconductor chips, said semiconductor chips being mounted in said sub-wells of said major well of said heat sink.