Method and circuit arrangement for operating a high-pressure...

Details Method and circuit arrangement for operating a high-pressure... Method and circuit arrangement for operating a high-pressure...

2007-10-23

2007-10-23

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

C315S307000

Reexamination Certificate

active

10513484

ABSTRACT:
A method and a circuit arrangement for the operation of a high-pressure gas discharge lamp (HID [high intensity discharge] lamp or UHP [ultra high performance] lamp) is described, which lamp is particularly suitable for illuminating projection displays with sequential color rendering (for example LCOS or SCR-DMD systems) with a pulsatory lamp current. Artefacts in the color rendering are avoided through the generation of at least one compensation pulse of a given amplitude and a given timing and through superimposition thereof on the lamp current.

REFERENCES:
patent: 5608294 (1997-03-01), Derra et al.
patent: 6278244 (2001-08-01), Hevinga et al.
patent: 6290892 (1994-10-01), None
patent: 845678 (1996-02-01), None

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