EP 0403211 A3 19910710 - ARC TUBE FOR A HIGH PRESSURE DISCHARGE LAMP
Title (en)
ARC TUBE FOR A HIGH PRESSURE DISCHARGE LAMP
Publication
Application
Priority
GB 8913798 A 19890615
Abstract (en)
[origin: EP0403211A2] An arc tube (12, 46, 48), provided for a high pressure discharge lamp, includes a discharge chamber (24) containing a fill. Electrical conductors (26, 28) extend into the discharge chamber (24) to form electrodes (32, 34). The electrical conductors (26, 28) are sealed in the arc tube (12, 46, 48) by a single pinch seal portion (30). At the interface (44) of the discharge chamber (24) and the pinch seal portion (30), the discharge chamber has at least in part a non-concave outline. This outline may be rectilinear or convex.
IPC 1-7
IPC 8 full level
H01J 61/36 (2006.01); H01J 61/30 (2006.01); H01J 61/82 (2006.01)
CPC (source: EP)
H01J 61/30 (2013.01); H01J 61/827 (2013.01)
Citation (search report)
- [X] EP 0219861 A2 19870429 - PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH [DE]
- [A] EP 0230051 A1 19870729 - PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH [DE]
- [A] PATENT ABSTRACTS OF JAPAN, vol. 1, no. 88 (E-490)[2535], 18th March 1987; & JP-A-61 240 561 (TOSHIBA) 25-10-1986
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0403211 A2 19901219; EP 0403211 A3 19910710; GB 8913798 D0 19890802; JP H0353445 A 19910307
DOCDB simple family (application)
EP 90306357 A 19900611; GB 8913798 A 19890615; JP 15414290 A 19900614