EP 0479259 A3 19920520 - MERCURY VAPOR DISCHARGE LAMP
Title (en)
MERCURY VAPOR DISCHARGE LAMP
Publication
Application
Priority
JP 26331090 A 19901001
Abstract (en)
[origin: EP0479259A2] There are provided a mercury discharge lamp that contains an accurate amount of sealed-in mercury in the bulb (1) and a mercury carrier (71) to be used for such a discharge lamp, capable of stably maintaining the mercury, as well as an efficient method of manufacturing the same. A mercury vapor discharge lamp according to the invention comprises a mercury carrier (71) that retains in it a given amount of mercury which is discharged into the bulb (1) of the lamp. Said mercury carrier (71) comprises a porous carrier main body made of an appropriate material such as a ceramic material. The carrier main body is prefabricated and immersed in liquid mercury under pressure to drive mercury into the gaps formed in the carrier main body, where it is retained. <IMAGE>
IPC 1-7
IPC 8 full level
H01J 9/395 (2006.01); H01J 61/24 (2006.01); H01J 61/28 (2006.01)
CPC (source: EP KR)
H01J 9/395 (2013.01 - EP); H01J 61/20 (2013.01 - KR); H01J 61/28 (2013.01 - EP)
Citation (search report)
- [XD] EP 0228005 A2 19870708 - PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH [DE]
- [X] DE 2203033 A1 19730726 - HERRMANN GEBR
- [Y] US 3825788 A 19740723 - PFAUE J, et al
- [A] EP 0081263 A2 19830615 - PHILIPS NV [NL]
- [A] EP 0359724 A2 19900321 - GETTERS SPA [IT]
- [A] US 4146497 A 19790327 - BAROSI ALDO, et al
- [A] US 2892665 A 19590630 - FRASER HUGH D
- [X] PATENT ABSTRACTS OF JAPAN vol. 13, no. 534 (E-852)(3882) 29 November 1989 & JP-A-1 220 359 ( TOSHIBA CORP ) 4 September 1989
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0479259 A2 19920408; EP 0479259 A3 19920520; JP H04141940 A 19920515; KR 920008828 A 19920528; KR 940009328 B1 19941006
DOCDB simple family (application)
EP 91116800 A 19911001; JP 26331090 A 19901001; KR 910017194 A 19911001