Discharge lamp

Details Discharge lamp Discharge lamp

2011-07-05

2011-07-05

Patel, Ashok (Department: 2889)

Electric lamp and discharge devices

With gas or vapor

Envelope with particular structure

C313S623000, C313S625000, C313S025000, C313S318120

Reexamination Certificate

active

07973479

ABSTRACT:
A discharge lamp for a vehicle is provided with a ceramic luminous tube, a front side electrode and a rear side electrode held by the ceramic luminous tube, a first lead wire connected to the front side electrode, a second lead wire connected to the rear side electrode, a third lead wire having a front end portion connected to the first lead wire, an outer tube, and a socket. The ceramic luminous tube, the first lead wire, the second lead wire and the third lead wire are accommodated in the outer tube. The ceramic luminous tube includes a luminous portion and a pair of small diameter tube portions. The luminous portion is formed into a substantially cylindrical shape extending in a longitudinal direction. The third lead wire includes a horizontal portion extending in the longitudinal direction above the luminous portion.

REFERENCES:
patent: 7642721 (2010-01-01), Nagahara et al.
patent: 2007/0159104 (2007-07-01), Kanazawa et al.
patent: 2008/0007178 (2008-01-01), Utsubo et al.
patent: 2009/0134762 (2009-05-01), Serita et al.
patent: 2009/0206753 (2009-08-01), Kakisaka
patent: 2009/0316410 (2009-12-01), Takeda et al.
patent: 2004-103461 (2004-04-01), None

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