Patent ID: 7220006
Filing Date: 2007-05-22
Classification: G03B,H04N

Abstract:
1. An apparatus for improving the operation of a digital image projector, comprising: a video input board of the projector; a light engine of the projector, said light engine receiving video signals and generating a light output for at least one primary color there from; optics for transforming the light output from said light engine to a focused image for projection to a display screen; a variable luminance control mechanism, associated with the optics, for receiving the light output and provide a correction thereto; and an adaptive luminance control module, for receiving signals from said video input board, said adaptive luminance control module producing a control signal, wherein said variable luminance control mechanism operates in response to the control signal to change the luminance of the light output and provide a corrected video signal for the projector, and wherein the adaptive luminance control module comprises: