Osram Sylvania Inc.

William E Meyer

Charles M Coushaine

Thomas Tessnow

Michael D Tucker

Thomas Reiners

Ralf Vollmer

Ralph J Johnson

Angela Hohl-AbiChedid

Angela Hohl-Abichedid

A solid-state light source () comprising a plurality of LED units () arrayed to emit light generally about an axis (). Each of the LED units () can comprise a number of LEDs, for example, up to five. They may all emit in a single color or multiple colors can be combined for a specific effect. A light transmissive light guide () is associated with the LED units () and has a plurality of input widows (). Each LED unit () faces a respective input window () and each window () transversely intercepts the axis () and receives light from the LED units (). The input windows () lead to a common output window () that is axially aligned with the input windows (). The light guide () has smooth sidewalls () that extend between the input windows () and the output window ().

LED headlamp system

An LED lamp may be made with a heat sink optic. The lamp has a base having a first electrical contact and a second electrical contact for receiving current. At least one LED is mounted on a thermally conductive support; that supports electrical connections for the LED and provides thermal conduction of heat from the LED to the optic. The LED support mounted in the base and electrically coupled through the first electrical contact to electrical current. The light transmissive, and heat diffusing optic has an external an internal wall defining a cavity with the LED positioned in the cavity. The optic is in thermal contact with the LED support and mechanically coupled to the base. The snap together structure enables rapid manufacture while allowing numerous variations.

LED lamp with heat sink optic

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Lincoln, MA, United States of America

William E Meyer