High-current, low pressure, mercury discharge lamp with pressure

Details High-current, low pressure, mercury discharge lamp with pressure High-current, low pressure, mercury discharge lamp with pressure

1978-06-23

1979-10-09

Demeo, Palmer C.

Electric lamp and discharge devices

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

For plural electrodes of discharge device

313217, 313220, H01J 61067, H01J 6110, H01J 6120, H01J 6130

Patent

active

041707435

ABSTRACT:
A heavy-current mercury low-pressure lamp with pressure equalization space, wherein the anode and cathode electrodes are arranged one behind the other in a bulb and wherein the one of the two arms of the discharge space projects coaxially into the bulb and passes through the annular-shaped anode. The arm of the discharge space which projects into the bulb extends at least as far as the cathode and surrounds the latter laterally. Arc-through through the pressure compensation space is prevented and the average useful life of such lamps is thereby prolonged.

REFERENCES:
patent: 2332189 (1943-10-01), Arnold et al.
patent: 3262004 (1966-07-01), Keller
patent: 3585436 (1971-06-01), Beijer et al.
patent: 3971968 (1976-07-01), Bachmann et al.
patent: 4000431 (1976-12-01), Brandli et al.

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