Electric lamp and discharge devices – With gas or vapor – Having electrode heated by space discharge current
Patent
1996-10-31
1998-04-21
Horabik, Michael
Electric lamp and discharge devices
With gas or vapor
Having electrode heated by space discharge current
313631, 445 46, 445 51, 140 715, H01J 6106, H01J 61073
Patent
active
057421250
ABSTRACT:
The high pressure discharge lamp has refractory electrodes each having a top and a winding of refractory metal wire, which has turns and is, in an area thereof remote from the top, secured to the electrode. The turns of the winding are made to have torsion. Thereby an accurately defined position with respect to the top of the electrode is obtained. The direction of the torsion is opposite to the direction of the turns, which causes neighbouring turns to press one against the other.
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Day Michael
Egbert Walter M.
Horabik Michael
U.S. Philips Corporation
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