【作者】 陈成；

【导师】 张新宇；

【作者基本信息】 华中科技大学 ， 控制工程， 2016， 硕士

【摘要】 近年来,对电控液晶微透镜的研究日渐增多,基于电控液晶微透镜的成像系统日趋成熟,应用范围在逐渐扩展,基于电控液晶微透镜的成像系统也逐渐朝着集成化和小型化方向发展。简化电子学控制系统,提高控光效能,降低功耗和成本等需求,推动着电控液晶微透镜其结构和电子学驱控系统的改进和升级。本论文开展了基于平面微纳无线功率传输线圈的电控液晶微透镜的研究,设计和制作了多种用于电控液晶微透镜的平面微纳无线功率传输线圈系统,以及将其集成到电控液晶微透镜系统中来驱控液晶实现电控聚焦成像这一效能;提出了利用平面微纳非均匀线圈激励非均匀空间电场取代传统的复杂电极结构驱控液晶微透镜的全新架构。主要工作如下:(1)建立了基于磁场谐振式无线功率传输理论的平面微纳无线功率传输模型,着重对模型中的平面微纳无线功率传输线圈进行了参数分析和模型比对;(2)设计了几种典型形状和尺寸的平面微纳无线功率传输线圈,并采用格林豪斯算法,改进的威勒公式,电流近似公式,数值拟合公式和分圈迭代逼近算法,针对不同形状的平面微纳无线功率传输线圈进行了电感值的计算;(3)利用标准微电子工艺,根据设计参数制作了平面微纳无线功率传输线圈的微纳结构,对平面微纳无线功率传输线圈进行测试,评估线圈的无线功率传输效率。搭建测试光路,对线圈和液晶微透镜的集成结构进行了聚焦成像测试和分析;(4)提出了利用平面微纳非均匀螺旋线圈形成的非均匀电场来调控液晶微透镜的新架构,利用电磁仿真软件对平面微纳非均匀螺旋线圈周围的空间电磁场分布进行了仿真,设计并制作了集合四个平面微纳非均匀螺旋线圈的小型阵列结构,并对平面非均匀螺旋线圈的电学特性进行了测量与分析。更多还原

【Abstract】 In recent years, researches on electrically driving liquid crystal microlenses(LCMs) are growing rapidly, and the imaging systems based on LCMs are gradually becoming mature, and then the applications are also extended continuously. So far, the imaging systems with LCMs are developed towards the integration and miniaturization. The demands of simplifying electronic control system and improving light-control efficiency and reducing power consumption and device and system cost, are driving to promote or upgrade the micro-structural and electrical performances of LCMs. In this dissertation, the researches on electrically driving LCMs based on planar micro-nano-wireless power transmission coils are carried out, and the micro-system of several planar micro-nano-wireless power transmission coils are designed and fabricated successfully. Through integrating coils as above with LCMs controlling structures, the focusing and imaging effectiveness of LCMs can be improved or even upgraded. A kind of novel architecture for stimulating space electrical field by micro-nano-nonuniform planar coils, which are used to instead of traditional complex electrodes of LCMs, is demonstrated, firstly. The main works are as follows:(1) Planar micro-nano-wireless power transmission model based on the theory of magnetic resonant wireless power transmission is established, and the parameter analyses and model comparisons of micro-nano-coils are made;(2) Several typical shape and structural size of planar micro-nano-wireless power transmission coils are designed, and the inductance values of different shape coils are calculated according to relevant algorithms;(3) Using standard microelectronics technology, the planar micro-nano-wireless power transmission coils are fabricated effectively, and further tested so as to efficiently evaluate wireless power transmission efficiency. Using the traditional light testing systems, the integrated structures of micro-nano-coils and electrically driving LCMs are measured and analyzed for acquiring the focusing and imaging properties of LCMs fabricated.(4) A novel micro-nano-coil-structure for driving LCMs is put forward, and the space electromagnetic field is simulated by using electromagnetic simulation software. Several arrayed micro-structures of a set of four planar micro-nano-nonuniform spiral coils are designed and fabricated, and the electrical properties of the coils are given.更多还原