(19)
(11) EP 0 186 898 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.10.1988 Bulletin 1988/40

(43) Date of publication A2:
09.07.1986 Bulletin 1986/28

(21) Application number: 85116517

(22) Date of filing: 23.12.1985
(84) Designated Contracting States:
BE DE FR GB NL

(30) Priority: 31.12.1984 US 687640

(71) Applicant: GTE Products Corporation
 ()

(72) Inventors:
  • Gavenonis, Thomas L.
     ()
  • Hewitt, William H.
     ()

   


(54) Rapid flash lamp


(57) A method and apparatus for providing low peak time and pulse width actinic energy from a lamp by varying the input energy of a capacitive ignition circuit having relatively high voltage to the lamp. The lamp comprises a pair of electrodes disposed within a light transparent envelope in which a combustible and an oxidizing gas reaction combination is located. The combustible is preferably shredded zirconium which is in contact with and provides an electrical discharge path between the electrodes. The gas is preferably pressurized oxygen.






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