Liquid Crystal Lens Spacer Layout for Low-Scattering Optics

The patent applies local quality by differentiating spacer distribution across different regions of the liquid crystal cell. Spacers are concentrated in reset regions between electrode patterns while being minimized or absent in active regions where refractive index patterns are generated. This spatially varying distribution optimizes both cell gap definition and optical performance by reducing scattering in critical areas while maintaining structural integrity where needed.

The patent employs asymmetry by creating non-uniform spacer distribution that is deliberately asymmetric with respect to the electrode patterns. The spacer density varies across different radial or spatial zones, with higher density in reset regions and lower density in active regions. This asymmetric arrangement breaks the symmetry that would otherwise cause optical scattering and aberration, while still achieving adequate cell gap control.

The patent applies the taking out principle by removing spacers from electrode regions and concentrating them in reset regions. This extraction of spacers from the electrode areas eliminates the interference and alignment problems that arise from spacer-electrode interactions, while cell gap maintenance is achieved through alternative means such as edge seals or gravity-driven spacer distribution in the remaining reset regions.

The patent uses segmentation by dividing the liquid crystal cell into distinct functional regions: electrode regions and reset regions. Spacers are selectively placed only in reset regions, creating a segmented distribution pattern. This segmentation allows different regions to serve different functions optimally - electrode regions for pattern generation and reset regions for spacer localization - thereby eliminating interference while maintaining cell gap where necessary.