Lamp with glass sleeve and method of making same

摘要

A lamp has a light transmissive glass envelope which includes a light source chamber. At least one glass extension is affixed to the light source chamber and has a sealing area surrounding a portion of it. A patterned metal foil is affixed to and surrounds the sealing area and a glass shroud surrounds at least the light source chamber and has an end sealed to the metal foil.