Method and arrangement for flashlamp control
AssigneeRovak GmbH
InventorsUdo REICHMANN, Georg OCHLICH, Marcel NEUBERT
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Abstract
A method for flashlamp control, in which a main pulse of the lamp current, producing a flash, is generated, and a pre-pulse of the lamp current is previously generated by application of a bias voltage includes a flashlamp with an ignition electrode, a bias voltage source, a main voltage source and a control system. The load of the flashlamp is minimized during the production of a main pulse by a pre-ignition. A pre-pulse is generated by applying a plasma voltage which is higher than the bias voltage, as an electrode voltage, and igniting a plasma in the flashlamp by means of an ignition electrode and maintaining same by means of the bias voltage during the pre-pulse.
Claims14
A method for flashlamp control in which a main pulse of a lamp current generating a flash is effected by applying an electrode voltage to the electrodes of a flashlamp comprising:
- prior to the flash generation, a pre-pulse of the lamp current is generated by applying a bias voltage, wherein the pre-pulse is generated in that a plasma voltage higher than the bias voltage is applied as an electrode voltage, and a plasma is ignited in the flashlamp by an ignition of an ignition electrode and is maintained by the bias voltage during the pre-pulse.
An apparatus for flashlamp control comprising:
- a flashlamp which is provided with two electrodes between which an electrode voltage can be applied;
- an ignition electrode which is operatively connected to the flashlamp;
- a bias voltage source operative to generate a bias voltage;
- a main voltage source and a control system;
- wherein a plasma voltage source operative to generate a plasma voltage, the effect of which can be controlled by the ignition electrode, is nonreactively connected in parallel to the bias voltage source, and wherein the plasma voltage is greater than the bias voltage.
Dependencies are inferred from the claim text.