Bulb-shaped flashtube with metal envelope

Details Bulb-shaped flashtube with metal envelope Bulb-shaped flashtube with metal envelope

1975-10-02

1977-04-26

Krawczewicz, Stanley T.

Electric lamp and discharge devices

With support and/or spacing structure for electrode and/or...

For plural electrodes of discharge device

313281, 313313, E05C 706

Patent

active

040203794

ABSTRACT:
A bulb-shaped flashtube is provided with a metal envelope to increase its strength and enhance its reliability and operating characteristics. The metal envelope comprises a hollow cylindrical container including an open bottom end and an inwardly extending annular flange at its top end which defines a window opening in the container. A circular base of insulating material is sealed in the open bottom end of the container. A plurality of conductors extend through the insulating base to support a plurality of electrodes within the container. A circular, transparent window is sealed to the annular flange inside the top end of the container for transmitting a flash of light upon electrical discharge between the electrodes.

REFERENCES:
patent: 1988933 (1935-01-01), Asakawa
patent: 2013095 (1935-09-01), Friend
patent: 2499489 (1950-03-01), Goldstein et al.
patent: 2542440 (1951-02-01), Victoreen et al.
patent: 2686269 (1954-08-01), Levitt et al.
patent: 3027482 (1962-03-01), Gallup

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