Advanced Lighting Technologies, Inc.

Timothy R Brumleve

Steven C Hansen

Duane A Stafford

Chakrapani Varanasi

James F Sarver

Abbas Lamouri

Tryggvi Emilsson

Ajaypal Naruka

Katsumi Fukutome

A metal halide lamp having a high pressure quartz arc tube in which the electrodes are non-thoriated.

Dopant-free tungsten electrodes in metal halide lamps

The present invention includes barrier coatings and methods for reducing or preventing chemical reaction between the discharge medium and arc tube wall material in discharge lamps. The barrier coatings comprise nitride layer exposed to the discharge medium formed from one or more of aluminum, boron, scandium, yttrium, or the lanthanides. In another aspect, the present invention includes methods of forming coatings on the inner wall of arc tubes by introducing two or more precursors into the arc tube chamber and pyrolitically reacting the precursors to form layers for the coating.

Barrier coatings and methods in discharge lamps

A solid mercury-releasing material and a method of dispensing precise amounts of mercury into the light emitting chamber of a discharge lamp without introducing the other dispenser components into the chamber are disclosed. The solid material includes an amalgam of one or more metals and mercury in the form of particles of high purity, uniform size and uniform composition.

Solid mercury releasing material and method of dosing mercury into discharge lamps

A solid halogen-containing lamp fill material and a method of introducing small amounts of halogen into a HID lamp are disclosed. The solid material may include an admixture of a metal and a metal halide in the form of spheres of high purity, uniform size and uniform composition. Solid lamp fill material and methods of introducing small quantities of one or more metals into a HID lamp are also disclosed.

Solid lamp fill material and method of dosing HID lamps

A fluorescent lamp containing zinc amalgam and a method of precisely controlling the amount of mercury introduced into a temperature controlled fluorescent lamp. Precise quantities of mercury may be introduced into a fluorescent lamp in the form of solid zinc amalgam pellets that are in a metastable, non-equilibrium state.

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Urbana, IL, United States of America

Timothy R Brumleve