On January 20th, 2011 patent application 20110013097 assigned to MicroVision titled, "Correcting Scanned Projector Distortion by Varying the Scan Amplitude. This patent application teaches method for improving a projected image by manipulating how the mirror scans the image. Issues such as "keystone distortion, parallelogram distortion, pincushion distortion, barrel distortion, surface profile distortion, surface relief distortion, intentional distortion, or arbitrary distortion, or combinations thereof" can all be addressed using this approach.