Patent ID: 6788416
Filing Date: 2004-09-07
Classification: G01M

Abstract:
A method of measuring the dynamic behavior of a DMD micromirror residing in a DMD micromirror array, the method comprising:providing a high-speed illumination source adapted to illuminate at least a portion of a DMD micromirror array; providing an integrating optical sensor adapted to measure light reflected by a DMD micromirror array; providing a DMD pattern generator; electrically connecting a DMD micromirror array to the DMD pattern generator; applying an alternating pattern of driving signals to the DMD micromirror array at a first periodic rate; illuminating the DMD micromirror array with at least one light flash that is synchronized with the alternating pattern of driving signals; and measuring an amount of light reflected from the DMD micromirror array over a first period of time with the integrating optical sensor, wherein the first period of time comprises at least one complete cycle of the alternating pattern of driving signals.