EP 0596676 A1 19940511 - High-pressure sodium discharge lamp.
Title (en)
High-pressure sodium discharge lamp.
Title (de)
Hochdrucknatriumentladungslampe.
Title (fr)
Lampe à décharge dans le sodium à haute pression.
Publication
Application
Priority
US 97051092 A 19921102
Abstract (en)
The invention relates to a high-pressure sodium discharge lamp (1) with evacuated outer envelope (3) for operation at low frequency, in particular for higher brightness at a color temperature between 1800 and 2250 K. The higher brightness can be achieved by a wall loading higher than 24 w/cm<2>, which wall loading value can be permitted if the ratio of the discharge gap to the discharge tube inner diameter D/d is less than 5.0. <IMAGE>
IPC 1-7
IPC 8 full level
H01J 61/073 (2006.01); H01J 61/30 (2006.01); H01J 61/34 (2006.01); H01J 61/82 (2006.01)
CPC (source: EP)
H01J 61/30 (2013.01); H01J 61/34 (2013.01); H01J 61/825 (2013.01)
Citation (search report)
- [A] GB 2092822 A 19820818 - EGYESUELT IZZOLAMPA
- [A] EP 0443675 A1 19910828 - PHILIPS NV [NL]
- [A] JJ. DE GROOT ET AL: "The High Pressure Sodium Lamp", 1986, KLUWER TECHNISCHE BOEKEN BV, DEVENTER, NL
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0596676 A1 19940511; EP 0596676 B1 19960424; DE 69302353 D1 19960530; DE 69302353 T2 19961212; JP H06203794 A 19940722
DOCDB simple family (application)
EP 93308699 A 19931101; DE 69302353 T 19931101; JP 26853093 A 19931027