Electrodeless vapor discharge lamp with auxiliary voltage triggering means

Claim 1

A VAPOR DISCHARGE LIGHT SOURCE, COMPRISING: A VAPOR DISCHARGE LAMP INCLUDING AN ENVELOPE; A VAPORIZABLE SUBSTANCE WITHIN SAID ENVELOPE, THE VAPORS OF WHICH ARE ADAPTED TO EMIT LIGHT OF A CHARACTERISTIC WAVELENGTH WHEN SUBJECTED TO AN ELECTROMAGNETIC FIELD; SAID VAPOR DISCHARGE LAMP BEING ASSOCAITED WITH A FIRST PREDETERMINED LEVEL OF ELECTROMAGNETIC FIELD FOR INITIATING IONIZATION OF AND LIGHT EMISSION FROM SAID VAPORS; SAID VAPOR DISCHARGE LAMP BEING ASSOCIATED WITH A SECOND PREDETERMINED LEVEL OF ELECTROMAGNETIC FIELD, THAT IS LOWER THAN SAID FIRST PREDETERMINED LEVEL, FOR SUSTAINING IONIZATION OF AND LIGHT EMISSION FROM SAID VAPORS; AN OSCILLATOR CIRCUIT INCLUDING AN OUTPUT MEANS COUPLED TO SAID VAPOR DISCHARGE LAMP FOR PRODUCING ELECTROMAGNETIC ENERGIZING FIELDS FOR SAID LAMP; A MAIN POWER SUPPLY FOR SUPPLYING A CONTINUOUS OPERATING VOLTAGE TO SAID OSCILLATOR CIRCUIT TO GENERATE AN ELECTROMAGNETIC FIELD OF SAID SECOND PREDETERMINED LEVEL; AND AN AUXILIARY VOLTAGE MEANS CONNECTED BETWEEN SAID OSCILLATOR CIRCUIT AND SAID MAIN POWER SUPPLY FOR SUPPLYING SAID OSCILLATOR CIRCUIT WITH A VOLTAGE PULSE OF SUFFICIENT MAGNITUDE TO MOMENTARILY GENERATE AN ELECTROMAGNETIC FIELD OF SAID FIRST PREDETERMINED LEVEL TO INITIATE IONIZATION OF AND LIGHT EMISSION FROM SAID VAPORS; SAID SECOND LEVEL OF ELECTROMAGNETIC FIELD PRODUCED BY SAID CONTINUOUS OPERATING VOLTAGE SERVING TO SUSTAIN SAID LAMP AFTER TERMINATION OF SAID VOLTAGE PULSE.