Patent ID: 6690432
Filing Date: 2004-02-10
Classification: H04N

Abstract:
A scrolling color projector for displaying an image on a screen, comprising:a light source for generating an input light; a color splitter for at least one of transmitting and reflecting the input light emitted from said light source to split the light into at least first and second colors; at least a first color scanner including a motor and a prism, the at least first color scanner receiving as an input the first color of the input light, the motor rotating the prism to provide a scan of a first color scanner output signal on a display; a motor controller which controls a rotation of the motor of the at least first color scanner, the motor controller accessing a reference phase offset value indicative of a difference in phase between the scan of the first color scanner output signal and an electrical scan of the display, the motor controller being responsive to the reference phase offset value to alter the rotation of the motor such that the scan of the first color output signal is in phase with the electrical scan of the display.