A polarization recovery system includes a polarizing beam splitter transmitting
light of a useful polarization in an output direction and reflecting light of a
non-useful polarization in a first orthogonal direction substantially orthogonal
to the output direction. An initial reflector may reflect the non-useful polarization
light in a second orthogonal direction substantially orthogonal to the output direction
and the first orthogonal direction, and a final reflector may reflect the non-useful
polarization light in the output direction. The non-useful polarization light may
be rotated substantially to light of the useful polarization by the initial and
final reflectors.