Low-pressure lamp having a plurality of tubes and a cylindrical

Details Low-pressure lamp having a plurality of tubes and a cylindrical Low-pressure lamp having a plurality of tubes and a cylindrical

1987-02-03

1988-10-11

Moore, David K.

Electric lamp and discharge devices

With gas or vapor

Envelope with particular structure

313493, 445 26, H01J 6130, H01J 926

Patent

active

047774053

ABSTRACT:
Low-pressure mercury vapor discharge lamp having a discharge vessel sealed in a gas-tight manner and filled with mercury and a rare gas. The discharge vessel comprises four parallel extending straight tubular portions positioned in a square which are connected together by means of coupling joints to form a discharge passage. Two electrodes arranged at the ends of two tubular portions (4, 6) and are positioned side-by-side on one end of the discharge vessel. A discharge arc is maintained between the two electrodes through the discharge passage during lamp operation. A supporting member the four outer walls of the tube parts located between the four table parts engages the four outer walls of the tube parts near the ends of the tube parts remote from the electrodes.

REFERENCES:
patent: 4527088 (1985-07-01), Bouchard et al.

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