A projection engine uses a first polarizing beam splitter (PBS) that
substantially reflects light incident along a first input direction in a
first polarization state and substantially transmits light incident in
the first input direction in a second polarization state orthogonal to
the first polarization state. The first PBS demonstrates an angularly
dependent reflectivity for light in the second polarization state that is
asymmetric about the first input direction. At least two imager devices
are positioned to receive light reflected and transmitted by the first
PBS respectively. The imager devices modulate the incident light with an
image. The image light from the imagers is combined and projected.