Gas discharge tube with discharge shielding member

Details Gas discharge tube with discharge shielding member Gas discharge tube with discharge shielding member

1995-07-13

1997-05-27

Pascal, Robert

Electric lamp and discharge devices

With gas or vapor

Having electrode shield

313613, 313623, 313292, 313590, 315337, 315 94, H01J 1704

Patent

active

056335636

ABSTRACT:
A gas discharge tube includes a light-emitting section in an envelope sealing a gas therein, positioned at distal ends of lead pins while spaced from an inner side wall of the envelope. The light-emitting section includes a hot cathode, an anode, a focusing electrode, and a discharge shielding member having a front surface which faces the hot cathode. The front surface of the discharge shielding member is defined by a first surface being in direct contact with the focusing electrode, for defining a position of the focusing electrode, a second surface continued from the first surface, for defining a distance between the focusing electrode and the anode, and a third surface continued from the second surface and being in direct contact with the anode, for defining a position of the anode.

REFERENCES:
patent: 4611143 (1986-09-01), Shimazu et al.
patent: 4910431 (1990-03-01), Witt et al.
patent: 5057742 (1991-10-01), Kawai et al.
patent: 5191260 (1993-03-01), Kawai et al.

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