Patent ID: 6802613
Filing Date: 2004-10-12
Classification: H04N

Abstract:
An imaging apparatus having an expanded color gamut defined by more than three vertex colors for forming a color image on a display surface, comprising:(a) a light source including at least one dichroic combiner for transmitting a first vertex color and reflecting a second vertex color toward a color combining element that directs, along an illumination axis, a colored illumination beam having, at any one time, any one of at least four different vertex colors; (b) a linear array of electromechanical grating devices for receiving the colored illumination beam along the illumination axis; (c) an obstructing element for blocking a zeroth order light beam reflected from the linear array of electromechanical grating devices from reaching the display surface; (d) a projection lens cooperating with a scanning element for directing at least one diffracted light beam from the linear array of electromechanical grating devices toward the display surface, thereby forming a line image of the linear array on the display surface; and (e) a logic control processor for controlling timing of the light source and for providing image data to the linear array of electromechanical grating devices.