Automotive discharge bulb and automotive headlamp

Details Automotive discharge bulb and automotive headlamp Automotive discharge bulb and automotive headlamp

2007-06-12

2007-06-12

Santiago, Mariceli (Department: 2879)

Electric lamp and discharge devices

With gas or vapor

Envelope with particular structure

C313S573000

Reexamination Certificate

active

10852422

ABSTRACT:
An automotive discharge bulb having a light emitting tube includes a ceramic tube with paired electrodes oppositely placed, and contains a light emitting material and starting rare gas. A transversal section of the ceramic tube is longitudinally elongated. In the ceramic tube having a longitudinally elongated transversal section, an arc generated into an upwardly convex shape and the tube wall do not make contact.

REFERENCES:
patent: 3885181 (1975-05-01), Nelson et al.
patent: 4001623 (1977-01-01), Howles et al.
patent: 2005/0184640 (2005-08-01), Yamashita et al.
patent: 75034870 (1975-11-01), None
patent: 2001-76677 (2001-03-01), None

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