| 基于液晶自适应透镜的设计与制作 |
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| 引用本文： | 李晖,张新宇,张天序,沈绪榜.基于液晶自适应透镜的设计与制作[J].红外与激光工程,2009,38(5). |
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| 作者姓名： | 李晖 张新宇 张天序 沈绪榜 |
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| 作者单位： | 华中科技大学,图像识别与人工智能研究所,多谱信息处理技术国防科技重点实验室 |
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| 基金项目： | 国家自然基金重点资助项目(60736010);;国家自然基金资助项目(60777003) |
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| 摘 要： | 详细论述了液晶透镜的设计理论,并在前人已有的工作基础之上改进制作工艺,得到新型单圆孔电极的液晶透镜。与现在已有的单圆孔电极液晶透镜制作工艺相比,改进体现在:使用光刻和盐酸腐蚀的方法,刻蚀ITO基板得到了具有直径为2mm的圆孔图案的上电极;使用聚酰亚胺取代玻璃作为绝缘层。新型透镜的特性是,工作电压可以低至1.1Vrms,焦距范围为20~480mm,响应时间可达到亚毫秒量级,而在500~1100nm范围内透过率稳定在80%以上。通过实验进一步表明:该液晶透镜的点扩展函数(PSF)与理论值接近,且焦距与工作电压成反比例关系。
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| 关 键 词： | 自适应光学 液晶 透镜制作 |
Design and fabrication of adaptive lens based on liquid crystal |
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| LI Hui,ZHANG Xin-yu,ZHANG Tian-xu,SHEN Xu-bang.Design and fabrication of adaptive lens based on liquid crystal[J].Infrared and Laser Engineering,2009,38(5). |
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| Authors: | LI Hui ZHANG Xin-yu ZHANG Tian-xu SHEN Xu-bang |
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| Affiliation: | Institute for Pattern Recognition and Artificial Intelligence;Multi-spectral Information Processing Technologies National Defense Science and Technology Laboratory;Huazhong University of Science and Technology;Wuhan 430074;China |
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| Abstract: | Design theory of liquid crystal (LC) lenses was described. And its fabrication technology was improved based on existing work of other researchers. A new type of LC lens with single circular aperture electrode was obtained. Compared with the existing fabrication technology of the LC lens with single circular aperture electrode, an improved circular electrode of 2 mm diameter on an ITO substrate with an insulation layer of polyimide (PI) instead of glass was etched through photolithography and hydrochloric a... |
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| Keywords: | Adaptive optics Liquid crystals Lens design |
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