Power control apparatus for discharging lamp and method thereof

Details Power control apparatus for discharging lamp and method thereof Power control apparatus for discharging lamp and method thereof

1994-04-11

1995-11-07

Pascal, Robert J.

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

315307, 315224, 315219, 315 82, G05F 100

Patent

active

054650291

ABSTRACT:
A discharging lamp lighting apparatus is provided with predicting means for predicting final discharging lamp voltage of a discharging lamp, and discharging lamp control means including a discharging lamp voltage-discharging lamp current corresponding characteristic to instruct current applied to the discharging lamp by discharging lamp voltage fed to the discharging lamp, for performing lighting control by using a value predicted by the predicting means. It is thereby possible to feed the optimal power to the discharging lamp according to a variation in the final discharging lamp voltage due to quality or an operating time, and reduce a time required for stability of luminous flux.

REFERENCES:
patent: 4672271 (1987-06-01), Gear et al.
patent: 5212428 (1993-05-01), Sasaki et al.

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