EP 2388799 A3 20131218 - Single-ended short arc lamp of low colour temperature with reduced sodium loss
Title (en)
Single-ended short arc lamp of low colour temperature with reduced sodium loss
Title (de)
Einseitig gesockelte Kurzbogenlampe niedriger Farbtemperatur mit verringertem Natriumverlust
Title (fr)
Lampe à arc court à température de couleur basse à culotage d'un seul côté, avec perte de sodium réduite
Publication
Application
Priority
IN 997DE2010 A 20100426
Abstract (en)
[origin: EP2388799A2] The present disclosure provides a single ended short arc metal halide lamp without outer jacket comprising an arc tube (101) equipped with a pair of tungsten electrodes (102), wherein the arc tube is filled with sodium-bearing metal halide chemistry and an electrical return lead (108) is contiguously juxtaposed alongside the arc tube. The return lead (108) is completely or partially embedded in a fused glass sleeve (107), thereby interrupting the cycle of sodium loss and leading to low colour temperature of the lamp, which is stable during life.
IPC 8 full level
H01J 61/82 (2006.01); H01J 5/46 (2006.01); H01J 61/24 (2006.01); H01J 61/36 (2006.01)
CPC (source: EP)
H01J 5/46 (2013.01); H01J 61/24 (2013.01); H01J 61/368 (2013.01); H01J 61/827 (2013.01)
Citation (search report)
- [X] US 5032758 A 19910716 - DAVENPORT JOHN M [US], et al
- [X] JP 2000223066 A 20000811 - TOSHIBA LIGHTING & TECHNOLOGY
- [X] US 5130602 A 19920714 - VERWIMP FRANS J D [BE]
- [E] EP 2375439 A2 20111012 - FLOWIL INT LIGHTING [NL]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 11163623 A 20110426