Patent ID: 7158280
Filing Date: 2007-01-02
Classification: G03F,Y10S

Abstract:
1. A method of calibrating a two dimensional array of micromirrors, including: parallel to a first axis, generating at least one first line of contrast between bright and dark micromirrors, applying the first line of contrast across the array with gray valued micromirrors between the dark and bright micromirrors for at least some first line locations, and recording reflected output intensity corresponding to the micromirrors; parallel to a second axis that is not parallel to the first axis, generating at least one second line of contrast between bright and dark micromirrors, applying the second line of contrast across the array with gray valued micromirrors between the dark and bright micromirrors for at least some second line locations, and recording reflected output intensity corresponding to the micromirrors; and calculating corrections to individual micromirrors corresponding to the recorded reflected output intensities.