Patent 7919933 was granted and assigned to Precise Flight, Inc. on April, 2011 by the United States Patent and Trademark Office.
A high intensity discharge (HID) lamp is operable as a stroboscopic light source by reducing power and maintaining constant polarity at the lamp for a period of dimmed operation and exciting the lamp with aperiodic polarity reversals for a run up period before returning the lamp to steady state operation.