Low-pressure mercury vapor discharge lamp

Details Low-pressure mercury vapor discharge lamp Low-pressure mercury vapor discharge lamp

1981-05-29

1984-01-17

Laroche, Eugene R.

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Discharge device load

315 59, 315DIG5, 313318, 313493, 313634, H01J 744, H01J 6156

Patent

active

044266022

ABSTRACT:
Low-pressure mercury vapor discharge lamp having a discharge vessel (1, 2, 3) which contains with mercury and a rare gas and is of such a shape that the ends of the discharge vessel where the electrodes (4, 5) are arranged are in a side-by-side relationship, these ends being connected to a lamp base (8) which has an axially projecting sleeve-shaped wall portion (12) of a cross-section which deviates from the circular and in which at least a starter (13) is included, a respective connecting pin (10, 11) which is shorter than the length of the projecting wall portion being provided on either side of the said projecting wall portion.
The projecting portion serves as a locating guide when inserting the lamp base in a holder (15), thereby inter alia preventing damage to the pins, and also serves as a housing for a starter switch (13) and a capacitor (14).

REFERENCES:
patent: 3501662 (1970-03-01), Plagge
patent: 4050763 (1977-09-01), Smithgall
patent: 4324447 (1982-04-01), van der Wolf et al.

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