EP 0374677 B1 19950329 - Method for producing a two-sided high-pressure discharge lamp.
Title (en)
Method for producing a two-sided high-pressure discharge lamp.
Title (de)
Verfahren zur Herstellung einer zweiseitigen Hochdruckentladungslampe.
Title (fr)
Procédé de préparation d'une lampe à décharge à haute pression à deux culots.
Publication
Application
Priority
DE 3842772 A 19881219
Abstract (en)
[origin: EP0374677A2] In the manfacture of a two-sided flattened metal halogenide high-pressure discharge lamp (20), the following process steps are carried out: preforming of the discharge vessel (6) by rolling with N2 dynamic pressure rinse, clamping into a flattening device, introducing the first electro-optical system (8, 9, 10, 11), the power supply (10) being bent in a zig-zag shape and resting on the inner wall of the quartz tube (1) in a self-supporting fashion, manufacture of the first flattened portion (14) with Ar rinse, high-vacuum baking, clamping in the pump head with flattening device and filling in the filling substances (18, 19) and introducing the second electro-optical system (8, 9, 10, 11) through the metering valve in the pump head in the inert gas countercurrent, evacuating the heated-up discharge vessel (6) at least three times and argon-rinsing it, flooding the discharge vessel (6) with filler gas, manufacture of the second flattened portion (17) with simultaneous cooling of the discharge vessel (6), removal of the lamp (20) from the pump head and removal of the projecting ends of the quartz tube (1). The lamp (20) remains in the pump head during the entire pumping and flattening process, there is no pump tube on the discharge vessel (6). <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP)
H01J 9/247 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0374677 A2 19900627; EP 0374677 A3 19910508; EP 0374677 B1 19950329; DD 290506 A5 19910529; DE 3842772 A1 19900621; DE 58909144 D1 19950504; HU 202674 B 19910328; HU 896662 D0 19900228; HU T52895 A 19900828; JP 2831404 B2 19981202; JP H02220328 A 19900903
DOCDB simple family (application)
EP 89122831 A 19891211; DD 33584789 A 19891218; DE 3842772 A 19881219; DE 58909144 T 19891211; HU 666289 A 19891218; JP 32751089 A 19891219