Osram Sylvania Inc.

Steve C Sidwell

Charles M Coushaine

Thomas Tessnow

Michael D Tucker

Robert H Colburn

Brad Ernest

An LED wedge-based lamp and method of making the lamp, where the lamp has a generally planar circuit board having one end that has electrical connections exposed thereon and a connecting part that is adapted to mechanically couple the lamp to a wedge-based lamp socket. The lamp includes an LED light engine near a second end of the circuit board, where the light engine includes plural laterally aligned LEDs whose light output mimics the light output of an incandescent lamp, such as used in automobile stop and turn signals. The lamp includes a load resistor, whose load mimics that of the incandescent lamp, on an exterior surface of the connecting part. The connecting part may be a sleeve that slides onto the circuit board. A hand grip/heat sink may be provided at the second end of the circuit board.

Wedge-based lamp with LED light engine and method of making the lamp

A lamp assembly includes a thermally conductive post aligned in an axial direction, a light emitting diode (LED) at an axial end of the post, a first arched reflector that reflects light from the LED and that has an apex generally aligned along the axial direction and that is removably attached to the post, and a second reflector surrounding the post at a base of the post, where the second reflector reflects in the axial direction light that has been reflected from the first reflector.

Lamp assembly with interchangeable light distributing cap

A solid-state light source () that is compatible with the existing sockets normally reserved for filamented lamps (). The solid-state light source () comprises a hollow base () formed to mechanically and electrically adapt to an existing socket normally reserved for lamps (). A sub-assembly () is adapted to cooperate with and fit into the hollow base (). The sub-assembly () comprises a circuit board () with a plurality of solid-state light sources () mechanically and electrically connected to one side () of the circuit board. Two electrical contacts () are positioned on the other side () of the circuit board for connection to an electrical circuit. A light pipe () covers the plurality of light sources () and extends away therefrom to a terminal end (). A light radiator () is affixed to the terminal end () and a light-opaque shroud () surrounds the light pipe () to keep all of the light generated by the solid-state light source within the light pipe () to exit out of the light radiator ().

LED light source mimicking a filamented lamp

A solid-state light source () that is compatible with the existing sockets normally reserved for filamented lamps (). The solid-state light source () includes a hollow base () formed to mechanically and electrically adapt to an existing socket normally reserved for lamps (). A sub-assembly () is adapted to cooperate with and fit into the hollow base (). The sub-assembly () includes a circuit board () with a plurality of solid-state light sources () mechanically and electrically connected to one side () of the circuit board. Two electrical contacts () are positioned on the other side () of the circuit board for connection to an electrical circuit. A light pipe () covers the plurality of light sources () and extends away therefrom to a terminal end (). A light radiator () is affixed to the terminal end () and a light-opaque shroud () surrounds the light pipe () to keep all of the light generated by the solid-state light source within the light pipe () to exit out of the light radiator ().

Growing community of inventors

Hopkington, NH, United States of America

Steve C Sidwell