93‐4: Polarization Efficiency Optimization of Freeform Liquid‐Crystal Polarization Imaging Optics

Freeform Liquid‐Crystal Imaging Optics (LPIOs) have attracted significant interest in near‐eye displays, yet their polarization‐sensitive nature causes diffraction efficiency variations under changing polarization states, leading to nonuniform performance. This study introduces an approach for polarization efficiency optimization of freeform LPIOs. An optimal balance between aberration correction and efficiency control can be achieved by optimizing the flexible phase profiles of freeform LPIOs. Validated through an augmented reality display system example, this work demonstrates the potential to advance freeform LPIO applications in optics and photonics.