Patent ID: 7922355

Claim:
A solid state lighting device, comprising: a light mixing cavity having a center axis; said light mixing cavity enclosed by reflective surfaces and a diffusive output window; a plurality of light emitters positioned within said light mixing cavity, radially outwardly of said center axis; said plurality of light emitters adapted to emit multi-spectrum light; said reflective surfaces including an annular sidewall that forms a heat sink body of said solid state lighting device; a light-redirection member positioned within said cavity, said light-redirection member being centered on said center axis; said plurality of light emitters positioned on an interior surface of said annular sidewall, said annular sidewall disposed normal to said diffusive output window and said light-redirection member; said light-redirection member having a central dome and a flat flange circumscribing said dome; each light emitter of said plurality of light emitters arranged to emit light rays radially inwardly toward said light-redirection member; a semiconductor lighting device driver disposed external to said light mixing cavity in electrical communication with each light emitter of said plurality of light emitters; whereby light emitted by said plurality of light emitters is reflected from said light-redirection member and from said reflective surfaces of said light mixing cavity prior to exiting said light mixing cavity through said diffusive output window so that light colors are thoroughly mixed and whereby light rays from said light emitters of said plurality of light emitters reflects from said central dome, said flat flange, and said heat sink walls and thereby become thoroughly mixed before escaping from said light mixing cavity through said diffusive output window.