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High Precision Fabrication Method of Fresnel Diffractive Lenses on Ultrathin Membrane for Imaging Application 期刊论文  OAI收割
IEEE Photonics Journal, 2020, 卷号: 12, 期号: 4, 页码: 2400310-1-10
作者:  
Liu, Xin;  Gong, Changchang;  Fan, Bin;  Bian, Jiang
  |  收藏  |  浏览/下载:52/0  |  提交时间:2021/05/11
Investigation of Photoelastic Property and Stress Analysis for Optical Polyimide Membrane through Stress Birefringence Method 期刊论文  OAI收割
COATINGS, 2020, 卷号: 10, 期号: 1, 页码: 10010056-1-10
作者:  
Gao, Guohan;  Mao, Danbo;  Jiang, Renkui;  Li, Zhiwei;  Liu, Xin
  |  收藏  |  浏览/下载:24/0  |  提交时间:2021/05/11
Effect of Wet Expansion Behavior on Polyimide Membrane Diffractive Lens 期刊论文  OAI收割
COATINGS, 2019, 卷号: 9, 期号: 9
作者:  
Gao, Guohan;  Mao, Danbo;  Fan, Bin;  Guan, Chunlin
  |  收藏  |  浏览/下载:17/0  |  提交时间:2021/05/06
Surface shape optimization for the space membrane reflector (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
作者:  
Zhang Y.;  Zhang P.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
Space membrane reflector is very promised for optical quality application with the merits of ultra-lightweight and flexible. In order to improve the surface precision of membrane reflectors  the formation and surface shape error of a membrane at uniform load are studied based on the henky-cambell equations of circular membrane. The ANSYS software is used to build an optimization model of membrane reflector surface shape  in which the yield strength is the state variable  the surface load on ten concentric annular regions of the mirror is the design variable  and the minimum RMS between ideal surface and mirror surface is the target function. and the theoretical and experimental result show that RMS and PV of the optimized surfaces are reduced respectively than those before optimization. In a word  this paper offers the theoretical and experimental basis of the polyimide membrane reflector. 2011 IEEE.  
Configuring an electrostatic membrane reflector with potentials exerted on distributed electrodes (EI CONFERENCE) 会议论文  OAI收割
2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009, August 9, 2009 - August 12, 2009, Changchun, China
作者:  
Zhang P.;  Shi G.
收藏  |  浏览/下载:18/0  |  提交时间:2013/03/25
Electrostatic membrane reflector (EMR) is very promised for optical quality application with the merits of utra-lightweight and flexible. Configuring a circular membrane reflector with electrostatic potentials exerted on distributed electrodes can approximatively produce a parabolic shape. A 300mm EMR (made from polyimide) stretched by distributed electrodes below is designed  and the number of concentric electrodes needed for membrane shape forming is analysed. First  based on an analytical solution of Poisson's equation  determine the membrane control matrix by finding influence functions of 3 concentric electrodes and 6 control points on membrane surface in order to compute the needed voltages exerted on the distributed electrodes by the method of least-squares fitting. Then the final shape solved by finite element analysis with ANSYS is contrasted with the paraboloid and deviates greatly when the central displacement of membrane is beyond 2.5mm  but in this range increasing the number of electrodes and control points will get a better shape. The corresponding errors are analyzed  and the control method is concluded. Only using the integrated method of analytical computation  numerical analysis and experiment  the membrane shape of certain central displacement can be exactly predicted and controlled. 2009 IEEE.