EP 2988318 A1 20160224 - METAL HALIDE LAMP WITH HIGH COLOUR RENDERING
Title (en)
METAL HALIDE LAMP WITH HIGH COLOUR RENDERING
Title (de)
METALLHALOGENIDLAMPE MIT HOHER FARBWIEDERGABE
Title (fr)
LAMPE À HALOGÉNURE DE MÉTAL AVEC UN RENDU DE COULEUR ÉLEVÉ
Publication
Application
Priority
IN 2345DE2014 A 20140819
Abstract (en)
This invention relates to metal halide lamp comprising a discharge vessel, shape of which is optimized to obtain a high colour rendering with a low vessel wall temperature. Thus, the lower burner temperature allows for a long life lamp that also has a very good colour rendering. The shape of the discharge vessel is optimized by shape factor s l and aspect ratio f 0 and the size for a given shape is determined by the wall loading P D . Wherein wherein D outer diameter R I center part radius P la lamp power L body length center part.
IPC 8 full level
H01J 61/30 (2006.01); H01J 61/33 (2006.01); H01J 61/82 (2006.01)
CPC (source: EP)
H01J 61/125 (2013.01); H01J 61/30 (2013.01); H01J 61/33 (2013.01); H01J 61/827 (2013.01)
Citation (applicant)
- EP 0587238 A1 19940316 - KONINKL PHILIPS ELECTRONICS NV [NL]
- EP 2140479 A2 20100106 - KONINKL PHILIPS ELECTRONICS NV [NL]
- EP 1465239 A2 20041006 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- US 5936351 A 19990810 - LANG DIETER [DE]
- US 2012280616 A1 20121108 - DENG LEI [US], et al
- US 4808876 A 19890228 - FRENCH PARK [US], et al
- US 6774566 B2 20040810 - HONDA HISASHI [JP], et al
- JP 2003272560 A 20030926 - MATSUSHITA ELECTRIC IND CO LTD
- US 8390196 B2 20130305 - VAN DER EYDEN JOSEPHUS THEODORUS [NL], et al
- US 2003080681 A1 20030501 - KAKISAKA SHUNSUKE [JP], et al
- JP 2005293939 A 20051020 - MATSUSHITA ELECTRIC IND CO LTD
- US 2008224615 A1 20080918 - HIGASHI MASANORI [JP], et al
Citation (search report)
- [XDA] US 8390196 B2 20130305 - VAN DER EYDEN JOSEPHUS THEODORUS [NL], et al
- [XDI] US 5936351 A 19990810 - LANG DIETER [DE]
- [I] US 7268495 B2 20070911 - RINTAMAKI JOSHUA IAN [US], et al
- [AD] US 2012280616 A1 20121108 - DENG LEI [US], et al
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 15181266 A 20150817