Efficient DC operated fluorescent lamps

Details Efficient DC operated fluorescent lamps Efficient DC operated fluorescent lamps

1975-07-14

1977-01-25

La Roche, Eugene

Electric lamp and discharge devices: systems

With load device temperature modifier

313 44, 313174, 315108, H01J 6152, H01J 724

Patent

active

040053326

ABSTRACT:
A technique is disclosed herein for the enhancement of efficiency, and uniformity of light emission from a DC-operated fluorescent lamp. It involves the correlation of mercury vapor pressure within the lamp (which is dependent upon the temperature of liquid mercury within the lamp) with the magnitude and polarity orientation of the DC current applied to the lamp, and an optimization of these parameters along with lamp tube diameter.

REFERENCES:
patent: 1908648 (1933-05-01), Spaeth
patent: 3309565 (1967-03-01), Clark et al.

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