EP 0110249 A2 19840613 - High pressure sodium lamp having improved coloring rendition.
Title (en)
High pressure sodium lamp having improved coloring rendition.
Title (de)
Hochdrucknatriumlampe mit verbesserter Farbenwiedergabe.
Title (fr)
Lampe à sodium à haute pression à reproduction améliorée de couleurs.
Publication
Application
Priority
US 44477882 A 19821126
Abstract (en)
A high pressure sodium lamp operated at increased pressure and having an improved color rendition is disclosed. The improved high pressure sodium lamp has an arc tube which reduces the sodium losses typically experienced by high pressure operation.
IPC 1-7
IPC 8 full level
H01J 61/30 (2006.01); H01J 61/82 (2006.01)
CPC (source: EP)
H01J 61/302 (2013.01); H01J 61/825 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT
DOCDB simple family (publication)
EP 0110249 A2 19840613; EP 0110249 A3 19850508; EP 0110249 B1 19881019; CA 1209193 A 19860805; DE 3378287 D1 19881124; JP S59112563 A 19840629
DOCDB simple family (application)
EP 83111493 A 19831117; CA 440974 A 19831110; DE 3378287 T 19831117; JP 22086583 A 19831125