Discharge lamp

Details Discharge lamp Discharge lamp

2007-02-13

2009-10-06

Owens, Douglas W (Department: 2821)

Electric lamp and discharge devices

With gas or vapor

Having electrode lead-in or electrode support sealed to...

C313S624000

Reexamination Certificate

active

07598676

ABSTRACT:
A discharge lamp includes a coaxial waveguide for high-frequency electromagnetic wave transmission and a discharge tube for emitting light of discharge by plasma generated by electromagnetic waves. The coaxial waveguide includes an internal conductor and a pipe-shaped external conductor surrounding the internal conductor. The discharge tube is attached to a top of the coaxial waveguide, and is constructed in a double end shape in which both ends of a glass tube are pinched and sealed. The glass tube includes an ellipse spherical bulged part formed in a middle of a longitudinal direction. An inside of the ellipse spherical bulged part forms discharge space. A conductor assembly is sealed and attached to at least a proximal side pinch seal part. The proximal side pinch seal part of the discharge tube is inserted and held in a top opening of the coaxial waveguide.

REFERENCES:
patent: 6274973 (2001-08-01), Mochiduki et al.
patent: 6819047 (2004-11-01), Niimi
patent: 6825616 (2004-11-01), Kobayakawa et al.
patent: 2005-228520 (2005-08-01), None

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