High-pressure discharge lamp with envelope lead-through structur

Details High-pressure discharge lamp with envelope lead-through structur High-pressure discharge lamp with envelope lead-through structur

1981-05-18

1983-10-11

Demeo, Palmer C.

Electric lamp and discharge devices

With gas or vapor

Having particular electrode structure

313634, 313637, H01J 6112, H01J 6136

Patent

active

044095171

ABSTRACT:
The invention relates to a high-pressure discharge lamp for use in the vertical position, having a tubular ceramic discharge vessel, the electrodes being connected to current lead-through members which have been provided one at each end of the discharge vessel, a first, upper current lead-through member consisting of material which is resistant to attack by halogens and/or halides, for example molybdenum, and a second, lower current lead-through member comprising a hydrogen-permeable material, for example niobium.

REFERENCES:
patent: 3832590 (1974-08-01), Yamazaki et al.
patent: 3911308 (1975-10-01), Akutsu et al.
patent: 4001625 (1977-01-01), Schat et al.
patent: 4052635 (1977-10-01), Jacobs

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