Osram Sylvania Inc.

Russell R Holden

John P Sanroma

Charles M Coushaine

Ralph J Johnson

Guy P Bouchard

Andrew O Johnson

An electronic housing assembly is formed with an environmental seal (), EMI control () and a good thermal coupling () made between enclosed hot electric components () and an exterior heat sink ().

Housing for electronic ballast

An LED light source () has a housing () with a base () and a hollow core () projecting from the base (), the core () being substantially conical. A first printed circuit board () is fitted to the base (). A second printed circuit board () is fitted to the narrow end () of the core (), the second printed circuit board () having at least one LED () operatively fixed thereto. A plurality of electrical conductorsis provided having proximal ends () attached to and extending from the second printed circuit board () and distal ends () attached to and projecting through the first printed circuit board (). A cap () is fitted over the second printed circuit board () and a heat sink () is attached to the base () and in contact with the distal ends () of the electrical conductors (). The housing () is provided with flanges for engaging a suitable opening in the rear of a reflector.

Growing community of inventors

Newburyport, MA, United States of America

Russell R Holden