Back to results
US 7,116,053 B2Granted
Method for arc attachment stabilization
AssigneeUshio America, Inc.
InventorsHolger Claus, Andre Piotrowski
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeUshio America, Inc.
InventorsHolger Claus, Andre Piotrowski
Estimating the term…
A method of stabilizing an arc between electrode tips in a high pressure arc discharge lamp is provided comprising initially creating an arc between the pair of electrodes during a start-up phase of the lamp by supplying power to the lamp for a first period. The method then transitions the arc to attach itself between the tips of the electrodes by removing the power supplied to the lamp for a second period and then resupplying power to the lamp after completion of the second period. The first and second periods for respectively initially supplying and removing power are preferably selected based on either an elapsed period of time, the measured operating lamp voltage, or the measured lamp pressure. Once the arc becomes attached to the tips of the electrodes in this manner, the arc will remain stabilized between the electrode tips during operation of the discharge lamp.
A method of stabilizing an arc between desired portions of electrodes in an arc discharge lamp, comprising:
A method of stabilizing an arc between electrode tips in an arc discharge lamp, wherein the lamp includes a pair of electrodes disposed inside a sealed discharge vessel with each electrode having a tip with a gap extending there between, wherein the electrodes are configured to receive power from a power supply attached to the lamp, the method comprising:
A short arc type discharge lamp system, comprising:
Dependencies are inferred from the claim text.