In the field of augmented reality/virtual reality head-mounted displays or eyeglasses, electro-optical tunable lenses have great potential to resolve the issue of accommodation-convergence conflicts and to correct vision problems. A high-quality tunable lens with a large field of view is highly desired for these near-to-eye applications. Recently, gradient refractive index tunable liquid crystal lenses with a concentric ring electrode design and segmented phase profile have received attention due to their compactness, low-voltage requirement, and ability to provide a large aperture size while maintaining a fast-switching speed. However, this design can result in degradation of optical quality, causing haze from the phase reset boundaries and electrode discontinuity. We analyze the cause of haze and presents solutions to reduce these effects, and we experimentally validate them.

中文翻译：

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具有分段相位分布的同心电极大孔径液晶透镜的雾度减少

在增强现实/虚拟现实头戴式显示器或眼镜领域，电光可调镜片在解决调节-会聚冲突问题和矫正视力问题方面具有巨大潜力。这些近眼应用非常需要具有大视场的高质量可调镜头。最近，具有同心环电极设计和分段相位分布的梯度折射率可调液晶透镜由于其紧凑、低电压要求以及在保持快速切换速度的同时提供大孔径尺寸的能力而受到关注。然而，这种设计可能会导致光学质量下降，从而导致相位重置边界和电极不连续性产生雾气。我们分析雾霾的原因并提出减少这些影响的解决方案，