LIGHTING SYSTEM PROVIDED WITH A SEQUENTIAL COLOUR FILTERING AND A HIGH-PRESSURE DISCHARGE LAMP

摘要

The invention relates to a novel method for operating lighting systems provided with a sequential colour filtering and a high-pressure discharge lamp using alternate current. The invention also relates to corresponding ballast for said lighting systems. According to said invention, at least three communications for current supply to said lamp are used during the colour filtration sequence in order to favourably operate said lamp without the excessive increase of the colour filtering operation frequency.