Abstract
An illumination system for illuminating a spatial light modulator. An integrator rod is positioned in the light path between an arc lamp and the spatial light modulator. At the input surface of the integrated rod, there is positioned a field lens for defocusing areas of turbulence within the arc lamp. In the output surface of the integrated rod there is positioned a plate effective to prevent dust from being attracted to the output surface of the integrator rod. The integrator rod is effective to combine light from two separate light sources.
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