EP 0714551 B1 19970820 - METAL-HALIDE DISCHARGE LAMP FOR PHOTOGRAPHIC-LIGHTING PURPOSES
Title (en)
METAL-HALIDE DISCHARGE LAMP FOR PHOTOGRAPHIC-LIGHTING PURPOSES
Title (de)
METALLHALOGENIDENTLADUNGSLAMPE FÜR FOTOOPTISCHE ZWECKE
Title (fr)
LAMPE A HALOGENURE DE METAL POUR USAGES PHOTO-OPTIQUES
Publication
Application
Priority
- DE 9400752 W 19940630
- DE 4327534 A 19930816
Abstract (en)
[origin: US5691601A] PCT No. PCT/DE94/00752 Sec. 371 Date Dec. 14, 1995 Sec. 102(e) Date Dec. 14, 1995 PCT Filed Jun. 30, 1994 PCT Pub. No. WO95/05674 PCT Pub. Date Feb. 23, 1995A metal-halide discharge lamp for photooptical purposes has a small electrode spacing of less than 15 mm, preferably 2-8 mm, to provide an essentially pin-point light source, and a fill which contains AlI3 in an amount between 0.1 and 4.5 mg/cm3. Other filling components may in particular be halides of mercury, indium, thallium or cesium; up to 2 mg/cm3 of AlBr may be added. The lamp is particularly adapted for combination with a, preferably parabolic, reflector.
IPC 1-7
IPC 8 full level
H01J 61/20 (2006.01); H01J 61/02 (2006.01); H01J 61/073 (2006.01); H01J 61/12 (2006.01); H01J 61/82 (2006.01); H01J 61/86 (2006.01)
CPC (source: EP KR US)
H01J 61/025 (2013.01 - EP US); H01J 61/0737 (2013.01 - EP US); H01J 61/12 (2013.01 - KR); H01J 61/125 (2013.01 - EP US); H01J 61/827 (2013.01 - EP US); H01J 61/86 (2013.01 - EP US)
Citation (examination)
US 3586898 A 19710622 - SPEROS DIMITRIOS M, et al
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
US 5691601 A 19971125; CN 1061170 C 20010124; CN 1129491 A 19960821; DE 4327534 A1 19950223; DE 59403805 D1 19970925; EP 0714551 A1 19960605; EP 0714551 B1 19970820; JP 2930727 B2 19990803; JP H08509099 A 19960924; KR 960704340 A 19960831; WO 9505674 A1 19950223
DOCDB simple family (application)
US 55714595 A 19951214; CN 94193122 A 19940630; DE 4327534 A 19930816; DE 59403805 T 19940630; DE 9400752 W 19940630; EP 94918753 A 19940630; JP 50667295 A 19940630; KR 19960700759 A 19960215