EP 0549056 A1 19930630 - Electric discharge lamp.
Title (en)
Electric discharge lamp.
Title (de)
Elektrische Entladungslampe.
Title (fr)
Lampe électrique à décharge.
Publication
Application
Priority
EP 91203379 A 19911223
Abstract (en)
The electric discharge lamp has a discharge vessel (2), which is mounted in an outer bulb (1). A glass sleeve (10) is surrounding the discharge vessel. A coiled wire (11) is used as an envelope (11) to a glass sleeve. The wire is in an electrically floating manner fixed around the sleeve (10), e.g. by clamping fit. The construction of the lamp is simple an effective to protect the outer bulb (1) from being damaged by an explosion of the lamp vessel (2) and to prevent sodium, if present, to disappear from the discharge vessel as a result of photoemission. <IMAGE>
IPC 1-7
IPC 8 full level
H01J 61/30 (2006.01); H01J 61/50 (2006.01)
CPC (source: EP)
H01J 61/50 (2013.01)
Citation (search report)
- [Y] US 4950938 A 19900821 - RAMAIAH RAGHU [US]
- [Y] EP 0361530 A2 19900404 - GTE PROD CORP [US]
- [A] EP 0186899 A2 19860709 - GTE PROD CORP [US]
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0549056 A1 19930630; EP 0549056 B1 19960522; DE 69210973 D1 19960627; DE 69210973 T2 19961128; JP H05314952 A 19931126
DOCDB simple family (application)
EP 92203956 A 19921216; DE 69210973 T 19921216; JP 34067992 A 19921221