大直径的电调节镜头用于眼科距离适应.
Oleksandr Sova1, Vladimir Presniakov1, Armen Zohrabyan1
1LensVector and TLCL Optical Research, 6203 San Ignacio Ave., Suite 110, San Jose, CA, USA.
Biomedical optics express
|February 29, 2024
概括
本研究介绍了一种简单的,电调节的液晶透镜,提供广泛的光学功率范围和低偏差. 它表现出良好的视力恢复和快速响应时间,为先进的光学应用铺平了道路.
科学领域:
- 光学和光子学 在光学和光子学.
- 材料科学 材料科学 材料科学
背景情况:
- 液晶镜头提供可调节的光学功率.
- 现有的设计可能在光学功率范围或偏差方面存在局限性.
研究的目的:
- 介绍一个基于折射Fresnel概念的电调节液晶透镜.
- 为了证明其在光功率变化,偏差和视力恢复方面的性能.
主要方法:
- 设计和制造一个直径为30毫米的液晶透镜,使用单步 lithography.
- 包括Snellen图表测试在内的光学表征.
主要成果:
- 实现了从-0.74到+0.71的光学功率变化范围广泛的二光.
- 证明了非常低的根平均平方偏差 (≤0.15μm).
- 展现出良好的视力恢复,反应时间快 (<500毫秒) 和低雾度.
结论:
- 拟议的液晶透镜设计简单,有效和可制造.
- 它显示了需要调节光学和视力校正的应用程序的巨大潜力.
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