Osram Sylvania Inc.

Osram Opto Semiconductors Gmbh

Jeffery J Serre

Darshan Kundaliya

Richard Speer

Adam Scotch

James A Avallon

Kathleen A Lawson

Norwin Von Malm

Gregory Zaslavsky

Alan Lenef

David W Johnston

Sridharan Venk

In an embodiment a conversion element includes a first phase and a second phase, wherein the first phase comprises lutetium, aluminum, oxygen and a rare-earth element, wherein the second phase comprises AlOsingle crystals, and wherein the conversion element comprises at least one groove.

Process of manufacturing a conversion element, conversion element and light emitting device comprising the conversion element

A method of manufacturing a conversion element is disclosed. A precursor material is selected from one or more of lutetium, aluminum and a rare-earth element. The precursor material is mixed with a binder and a solvent to obtain a slurry. A green body is formed from the slurry and the green body is sintered to obtain the conversion element. The sintering is performed at a temperature of more than 1720&#xb0; C.

A ceramic conversion element, a light-emitting device and a method for producing a ceramic conversion element are disclosed. In an embodiment a ceramic conversion element includes a central region with a structured top surface including a plurality of structure elements and a frame surrounding the central region, the frame having a planar top surface, wherein the central region and the frame are formed as one piece, and wherein the ceramic conversion element is configured to convert primary radiation into secondary radiation of a different wavelength range.

Ceramic conversion element, light-emitting device and method for producing a ceramic conversion element

A dual solder layer for fluidic self assembly, an electrical component substrate, and method employing same is described. The dual solder layer comprises a layer of a self-assembly solder disposed on a layer of a base solder which is disposed on the solder pad of an electrical component substrate. The self-assembly solder has a liquidus temperature less than a first temperature and the base solder has a solidus temperature greater than the first temperature. The self-assembly solder liquefies at the first temperature during a fluidic self assembly method to cause electrical components to adhere to the substrate. After attachment, the substrate is removed from the bath and heated so that the base solder and self-assembly solder combine to form a composite alloy which forms the final electrical solder connection between the component and the solder pad on the substrate.

Dual solder layer for fluidic self assembly and electrical component substrate and method employing same

A flexible circuit board is described that includes a flexible substrate, at least one ridge defining a flexion zone and a component mounting area. The flexion zone acting to dissipate at least a portion of a force applied to the substrate, so as to insulate the component mounting area from the force. Light sources using such flexible circuit boards and methods for making such circuit boards are also described.

Flexible circuit board for electronic applications, light source containing same, and method of making

Methods for producing and placing wavelength converting structures for use in a solid state lighting assembly are disclosed. The wavelength converting structures may take the form of thin film converters including a substrate and one or more thin films of wavelength conversion material.

Methods for producing and placing wavelength converting structures

The present disclosure is directed to circuitry configurable based on device orientation. Example circuitry may comprise at least one device location and configurable conductors. The at least one device location may include at least two conductive pads onto which a device may be populated by a manufacturing process. The configurable conductors may be coupled to each of the at least two conductive pads. The configurable conductors may be configured by adding conductive material to at least one configurable conductor or subtracting at least part of at least one configurable conductor. For example, conductive material may be added to close a space between two segments of a configurable conductor to form a conduction path. Alternatively, at least part of at least one of a plurality of configurable conductors coupled to a conductive pad may be subtracted (e.g., cut) to stop conduction in the at least one configurable conductor.

Circuitry configurable based on device orientation

A light source () comprises a tubular glass heat pipe () having a given inside diameter ID. A tubular fiberglass wick () is positioned within the glass heat pipe (). The fiberglass wick () has an outside diameter OD substantially equal to the given inside diameter ID and has a substantially centrally located open chamber () extending the length thereof. A quantity of an evaporable-condensable medium () is provided within the glass heat pipe () and a metal cap () selected from the group of glass-sealing metals and alloys is fixed to a proximal end () of the glass heat pipe (). Heat dissipaters () are fixed to the distal end () of the heat pipe () and a light emitting diode () is fixed to the metal cap (). Power conducting traces () are formed with the heat pipe () and are electrically connected to the light emitting diode (). A lamp () can be formed with a plurality of the light sources ().

LED light source having glass heat pipe with fiberglass wick

An inductively coupled fluorescent discharge lamp includes a light transmissive envelope having a re-entrant cavity that has an outer surface inside the envelope, and an excitation coil inside the re-entrant cavity, and a spring clip that is attached to the outer surface of the re-entrant cavity by spring action of the spring clip on the outer surface, where the spring clip includes an amalgam. The spring clip may include a layer of the amalgam plated on a surface of the clip, or an amalgam-bearing flag attached to the clip.

Growing community of inventors

Peabody, MA, United States of America

Jeffery J Serre