PHOTOPOLYMERIZATION INITIATOR USING THIO-SUBSTITUTED KETONE COMPOUND

摘要

The ignition system comprises a DC-DC converter 13, a transformer 9, ignition transformers 14, switches 16 and spark plugs 15. The respective thyristor switches 16 are triggered at instants determined by a sensor unit 7 to discharge a capacitor 12 though the respective ignition transformer primary winding 17 thereby generating a spark at the plug 15. Each ignition transformer and its associated switch is mounted in a housing attached to the respective plug which includes a series spark gap and a capacitor 19.