EP 0375402 B1 19980318 - Quartz lamp envelope with molybdenum foil having oxidation-resistant surface formed by ion implantation
Title (en)
Quartz lamp envelope with molybdenum foil having oxidation-resistant surface formed by ion implantation
Title (de)
Lampenquarzkolben mit Molybdanfolie mit Oxydationsbeständiger Fläche, gebildet durch Ionenimplantation
Title (fr)
Enveloppe en quartz pour lampe avec feuille en molybdène pourvue d'une surface résistant à l'oxydation réalisée par implantation ionique
Publication
Application
Priority
US 28775588 A 19881221
Abstract (en)
[origin: EP0375402A2] A quartz lamp envelope (12) includes a press seal (22), at least one molybdenum foil feedthrough (24,30) extending through the press seal (22) to the lamp interior, and an external electrical lead (26,32) connected to the molybdenum foil. The molybdenum foil has an oxidation-inhibiting material, such as chromium, aluminium and combinations thereof, embedded in a surface layer thereof by ion implantation. The electrical lead has an oxidation-inhibiting coating, such as silicon carbide, silicon nitride and combinations thereof, formed by plasma-enhanced chemical vapor deposition. Alternatively, the electrical lead can have an oxidation-inhibiting material embedded in a surface layer thereof by ion implantation.
IPC 1-7
H01J 61/36; H01K 1/40; H01K 1/38; H01K 3/20; H01J 5/38; H01J 5/46; H01J 9/32; H01J 9/28
IPC 8 full level
H01J 5/38 (2006.01); H01J 5/46 (2006.01); H01J 9/28 (2006.01); H01J 9/32 (2006.01); H01J 61/36 (2006.01); H01K 1/40 (2006.01)
CPC (source: EP)
H01J 5/38 (2013.01); H01J 5/46 (2013.01); H01J 9/28 (2013.01); H01J 9/326 (2013.01); H01J 61/368 (2013.01)
Designated contracting state (EPC)
BE DE FR GB NL
DOCDB simple family (publication)
EP 0375402 A2 19900627; EP 0375402 A3 19910327; EP 0375402 B1 19980318; CA 2006129 A1 19900621; CA 2006129 C 19940308; DE 68928611 D1 19980423; DE 68928611 T2 19981112; JP H02267850 A 19901101
DOCDB simple family (application)
EP 89313370 A 19891220; CA 2006129 A 19891220; DE 68928611 T 19891220; JP 32980489 A 19891221