Patent ID: 7244032
Filing Date: 2007-07-17
Classification: G03B

Abstract:
1. A projector for full-color image projection, comprising: a light valve device, associated with color components of plural colors, for displaying an image in a color-separated manner; a main illuminating device for illuminating said light valve device with main illuminating light of said plural colors through illuminating light paths associated with respectively said color components, wherein image light of said plural colors is output by said light valve device, to constitute full-color image light; a laser illuminating device for emanating auxiliary illuminating light of at least one specific color among said plural colors according to laser emission through one of said illuminating light paths for said specific color, so as to compensate for shortage in light intensity in said main illuminating light; a shaking device for shaking said laser illuminating device, so as to keep visual noise inconspicuous in said auxiliary illuminating light; and an auxilliary combining optical element for receiving and combining said main illuminating light from said main illuminating device and said auxiliary illuminating light from said laser illuminating device so as to add said auxiliary illuminating light to said main illuminating light; wherein said laser illuminating device includes: said auxiliary combining optical element receives and combines said main illuminating light of said specific color being separated from other colors of said main illuminating light and said auxiliary illuminating light from said laser illuminating device so as to add said auxiliary illuminating light to said main illuminating light of said specific color, and directs said light being combined to said illuminating light path for said specific color.