#$%^&*AU2019204366A120190718.pdf#####An optical lens system that may be used to improve off-axis performance in imaging systems having birefringent lenses, comprising a birefringent lens； and a polarization filter that transmits light of a first polarization output from the birefringent lens in a first direction and filters out light of a second polarization output from the birefringent lens along the first direction.WO 2017/035646 PCT/CA2016/051023 1/10 P1 and P 2 -- -- - - -- , and 12 P1 and P 2 FIG. 1A Pan 1 1 I1 2 FIG. 1 B
