Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 17, 2009
Patent Application Number
11279929
Date Filed
April 17, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
Seven thermally and optically efficient LED units and two control units are disclosed. Flashlights utilizing these LED units and control units are also disclosed. Such a flashlight mainly includes a cylindrical housing, a cylindrical rear cap, one of the seven LED units, one of the two control units. Each LED units are interchangeable between different emitting colors. Each LED unit mainly comprises a metal base, a reflector if the metal base is not a reflector itself, a leadframe formed attaching one or more metal pins to a printed circuit board, one or more LED dies mounted on the metal base, optical material disposed over the LED dies, and an optional lens to further focus the light.
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