Discharge lamp lighting device

Details Discharge lamp lighting device Discharge lamp lighting device

1990-03-26

1992-12-08

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Current and/or voltage regulation

315175, 315176, 315219, 315224, 315DIG4, H05B 3700, H05B 4129

Patent

active

051700999

ABSTRACT:
A discharge lamp lighting device includes a DC power supplying means which supplies as superposed on a high frequency power fed to a low-tension, mercury-arc discharge lamp a DC power of a level capable of maintaining a discharge upon low light flux lighting, the lamp being thereby made stably lighted to an extremely low level of the flux of light.

REFERENCES:
patent: 4663570 (1987-05-01), Lucharco et al.
patent: 4665346 (1987-05-01), Tarroux
patent: 4694224 (1987-09-01), Nakagawa et al.
patent: 4710682 (1987-12-01), Zijchtriegel
patent: 4727297 (1988-02-01), Wolze
patent: 4876485 (1989-10-01), Fox
patent: 4881012 (1989-10-01), Almering
patent: 5001386 (1991-03-01), Sullivan et al.
F40SP35 General Electric Lamp (No Date).

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