Osram Sylvania Inc.

Mary Berger

Elliot F Wyner

Harold Rothwell, Jr

An ultraviolet enhancer (UVE) holder () may be configured to attach a UVE () having an outer envelope () to an electrical lead () of a lamp () and to retain the UVE () within the lamp () in a desired position. The UVE holder () may include a plurality of turns () comprising a first turn () and a final turn (). The first and final turns () may have a substantially similar inner diameter (D) defining a through passage () shaped to conformingly receive the outer envelope () of the UVE (). The UVE holder () may further include a first leg () depending from the first turn (), wherein the first leg () may have a first distal portion () remote from the first turn () defining a first attachment region () adapted for attachment to a lamp capsule electrical lead ().

Ultraviolet enhancer (UVE) holder

A metal halide arc discharge lamp () having a lamp envelope () and an arc tube () mounted within the envelope; a shroud () surrounding the arc tube (); electrical lead-ins () for supplying electrical energy to the arc tube (); and a chemical fill within the arc tube to produce light when an arc is formed within the arc tube; the improvement comprising: the shroud () having a given thickness T and a given inside diameter ID having a relationship such that T is less than 2 mm and ID/T is less than 22.

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Manchester, NH, United States of America

Mary Berger