H - Electricity – 01 – J
Patent
H - Electricity
01
J
H01J 61/30 (2006.01) H01J 61/24 (2006.01) H01J 61/34 (2006.01) H01J 61/82 (2006.01)
Patent
CA 2173768
An electric lamp comprises a sealed lamp envelope including a dome region having an inward projection and a neck region sealed to a lamp stem. A lamp subassembly islocated within the lamp envelope and includes an arc tube for generating light when electrical energy is applied thereto. A generally cylindrical, light-transmissive shroud is disposed about the arc tube. A frame comprising a single support rod extends between the dome and neck regions of the lamp envelope along one side only of the subassembly, and a dome end of the frame engages the inward projection of the lamp envelope. Means are provided for attaching the arc tube and shroud to the frame. A bulb spacer is provided having first and second segments bearing against an inside surface of the lamp envelope in the neck region for positioning the frame relative to the lamp envelope, and also having a third segment joining the first and second segments, the third segment being spaced away from the inside surface of the lamp envelope. The frame is attached to the third segment. Electrical leads couple electrical energy through the lamp stem to the arc tube. The electrical leads and the lamp stem are electrically isolated from the frame, and the lamp subassembly is mechanically supported within the lamp envelope solely by the dome end of the frame, the bulbspacer and the leads.
Osram Sylvania Inc.
R. William Wray & Associates
LandOfFree
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