位置：成果数据库 > 期刊 > 期刊详情页
一种新型液晶透镜的光学成像特性研究
  • 期刊名称：红外与毫米波学报
  • 时间：0
  • 页码：428-431
  • 语言：中文
  • 分类：TP211.6[自动化与计算机技术—控制科学与工程;自动化与计算机技术—检测技术与自动化装置]
  • 作者机构：[1]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,湖北武汉430074
  • 相关基金：国家自然基金重点资助项目（60736010）及国家自然基金项目（60777003）资助
  • 相关项目：基于纳米特征尺寸的微光学结构出射多谱光学强度图像与波前
作者： 李晖|沈绪榜|张新宇|张天序|
关键词： 液晶透镜, 自适应光学, 调制传递函数(MTF), liquid crystal lens, adaptive optics, modulation transfer function（MTF）
中文摘要：

在前人的单圆孔电极液晶透镜的基础上进行了改进,使用聚酰亚胺取代玻璃作为绝缘层,得到了通光孔径为2mm、工作电压最低为1.1Vrms的新型液晶透镜.结合几何光学和液晶理论提出了不同于前人解释液晶透镜原理的模型,推导出该液晶透镜的焦距公式以及相位延迟公式.在1.1～20Vrms电压范围下测试,得到与公式计算值基本一致的该液晶透镜的焦距范围20～480mm.重点研究了该液晶透镜的调制传递函数（MTF）,发现该液晶透镜的光学成像能力与控制电压成正比关系,随着电压的增大该液晶透镜的成像性能逐渐增强.

英文摘要：

A new circular hole pattern electrode liquid crystal （LC） lens was proposed, which used the polyimide film to replace the glass as an isolation layer. This LC lens has a 2mm clear aperture, and it can operate at as low as 1.1Vrms controlled voltage. A model, for which the explanation of LC lens was different from the traditional one, was proposed by combining geometrical optics with the theory of LC. Then the theoretical formulas of focal length and phase retardation were obtained. The focal length is from 20mm to 480mm tested in the range from 1.1Vrms to 20Vrms the value of which is close to the theoretical value. The modulation transfer function of LC lens was also studied. It is found that the imaging characteristics are proportional to the controlled voltage. As the voltage increases, the imaging characteristics also enhance.

同期刊论文项目
高速平台多模检测识别动目标的理论方法与关键技术
期刊论文 91 会议论文 45 著作 2
基于纳米特征尺寸的微光学结构出射多谱光学强度图像与波前
期刊论文 20 会议论文 10
同项目期刊论文
Treshold Selection using Partial Structrual Similarity.
VLSI Implementation of Multiple Large Template-Based.
基于液晶自适应透镜的设计与制作.
整合局部特征和滤波器特征的空间金字塔匹配模型.
一种图像旋转VLSI流水结构设计.
Fabricating a variety of micro-optics structures using anisotropic etching of silicon.
Detecting skin colors under varying illumination. MIPPR 2011
Robust Mean Shift Tracking with Improved Background- Weighted Histogram.
Design and Fabrication of Diffractive Micro-lens and Analysis of Optical Characteristics.
Design, Manufacture and Properties of High-definition Diffractive Objective lens.
Hough transform relative to a four-dimensional parameter space for the detection of constant velocit
Improved mean shift algorithm for multiple occlusion target tracking.
Moving objects segmentation based on piecewise constant Mumford-Shah model solving by additive opera
Ship target detection and tracking in cluttered infrared imagery.
Textured image segmentation based on modulation models.
Visual codebook construction for class-specific recognition.
VLSI Architecture for Real-Time Cloud Detection in Single Band Optical Remote Sensing Image.
电控可变焦128 元×128 元自适应液晶微透镜阵列.
多通道Reichardt运动目标检测算法.
二阶运动现象及其分析研究.
高效可配置浮点FFT处理器设计.
环形振荡器对称负载的特性分析.
基于二维Arimoto熵的阈值分割方法.
基于图形语言的图像处理算法快速开发环境模型研究.
基于运动指导的红外焦平面非均匀性校正方法.
数字集成电路物理设计阶段的低功耗技术.
一种新型2-D卷积器的FPGA实现.
用于自适应红外焦平面探测器的液晶微透镜阵列.
基于局部熵-灰度二维直方图的自适应分割算法.
一种图像旋转VLSI流水结构设计
基于判别式排序表的均值漂移目标跟踪算法.
Clutter-adaptive infrared small target detection in infrared maritime scenarios. Optical Engineering
Combining Clustering and Classification for Remote Sensing Images Using Unlabeled Data.
Improved multilevel filters to enhance infrared small target.
Indirect building localization based on a prominent solid landmark from a forward-looking infrared i
Building Recognition Based on Indirect Location of Planar Landmark in FLIR Image Sequences.
Terahertz electrically controlled nematic liquid crystal lens.
Building Recognition Based on Geometric Model in FLIR Image Sequences.
用于自适应红外焦平面探测器的液晶微透镜阵列
电控可变焦128元×128元自适应液晶微透镜阵列
基于液晶自适应透镜的设计与制作
一种下一代激光雷达的设计与实现
Background subtraction using shape and colour information.
Development and characterization of an electrically tunable liquid-crystal Fabry–P'erot hyperspectra
Instance-based attention: where could humans look first when searching for an object instance. Optic
128X128 elements liquid crystal cylindrical lens array electrically tunable focal length.
On selection and combination of weak learners in AdaBoost.
Real-Time Skin Color Detection under Rapidly Changing Illumination Conditions.
Clutter Suppression Method Based on Spatiotemporal Anisotropic Diffusion for Moving Point Target Det
Stripe-based connected components labeling.
Motion detection based on biological correlation model.
A polar coordinate system based grid algorithm for star identificatio.
PLL中对称性负载的分析.
一种可扩展的并行处理器模型设计及性能评估
CMOS 图像传感器中可编程增益放大器的设计.
基于PDE去鬼影的自适应非均匀性校正算法研究.
Adaptive Federated Kalman Filtering Attitude Estimation Algorithm for Double-FOV Star sensor.
A biologically inspired object-based visual attention.
Method for Building Recognition from FLIR Images.
A robust and fast hausdorff distance for image matching. Optical Engineering,2011
Block-Run-Based Connected Component Labeling Algorithm for GPGPU Using Shared Memory
Cascade of hierarchical context and appearance for object detection.
多值连通域标记ASIC
多级滤波ASIC
基于维数递增弱线性回归树的视频目标检测.
多线程非阻塞指令Cache设计.
Switching frequency response characteristics of a low cost wireless power driving and controlling sy
Image segmentation via coherent clustering in Lab color space.
Type-2 fuzzy thresholding using GLSC histogram of human visual nonlinearity characteristics.
Diffractive microlens with a cascade focal plane fabricated by single mask UV-photolithography and c
Emitting far-field multicolor patterns and characters through plastic diffractive micro-optics eleme
Photoelectrical response properties of a linear high-temperature superconducting sensor coupled with
一种红外焦平面非均匀性组合校正算法
二阶运动现象及其分析研究
复杂动态背景下的红外运动多目标跟踪与检测
港口背景下红外运动多目标跟踪
Boosting优化决策树的带钢表面缺陷识别技术
基于二维Arimoto熵的阈值分割方法
多线程非阻塞指令Cache设计
高效可配置浮点FFT处理器设计
一种新型2-D卷积器的FPGA实现
环形振荡器对称负载特性分析
数字集成电路物理设计阶段的低功耗技术
基于图像理解和意图识别的多Agent自主协同方法
粉尘环境中的图像恢复方法
一种基于复杂地物背景图像的目标识别方法
捕获跟踪水体地标的飞行器导航定位方法
基于运动指导的红外焦平面非均匀性校正方法
整合局部特征和滤波器特征的空间金字塔匹配模型
Optical focusing feature of single element in 128x128 elements electrically controllable cylindrical
128×128元频率驱动变焦液晶透镜阵列
128 × 128 elements frequency driven liquid crystal lens array with tunable focal length
用于测量和调控入射光偏振态的大面积阵列液晶器件
红外衍射微光学元件的湍流波前模拟和再现
折射微光学结构出射复杂光学波前
用于自适应红外焦平面探测器的液晶微透镜阵列
Planar refractive microlens arrays in indium phosphide and quartz substrates
Emitting complex wavefronts by refractive micro-optics structures
电控可变焦128元×128元自适应液晶微透镜阵列
基于液晶自适应透镜的设计与制作
OPTICAL IMAGING CHARACTERISTICS OF A NEW LIQUID CRYSTAL LENS
Fabricating high performance diffractive microlens by single step photolithography and wet etching
采用标准微电子工艺制作具有各种轮廓特征的光学微结构
基于硅各向异性腐蚀的非球面微光学元件的制作
采用单步光刻和湿法腐蚀工艺制作高性能衍射微透镜
基于液晶光调制器的夏克-哈特曼波前探测技术