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浏览/检索结果: 共14条,第1-10条 帮助

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Design of Co-aperture Wide Spectrum Compound Eye Optical System 期刊论文  OAI收割
Guangzi Xuebao/Acta Photonica Sinica, 2020, 卷号: 49, 期号: 3
作者:  
Chen, Yang;  Gao, Ming;  Hu, Xue-Lei;  Zhang, Xi-Bin;  Jiao, Yang
  |  收藏  |  浏览/下载:33/0  |  提交时间:2020/04/27
Experimental demonstration of quasi-omni-directional transmitter for underwater wireless optical communication based on blue LED array and freeform lens 期刊论文  OAI收割
Optics Communications, 2019, 卷号: 434, 页码: 184-190
作者:  
Han, Biao;  Zhao, Wei;  Zheng, Yunqiang;  Meng, Jiacheng;  Wang, Tao
  |  收藏  |  浏览/下载:195/0  |  提交时间:2018/12/03
Switching frequency response characteristics of a low cost wireless power driving and controlling system for electrically tunable liquid crystal microlenses 期刊论文  OAI收割
review of scientific instruments, 2011, 卷号: 82, 期号: 1, 页码: article no.14701
Zhang XY; Li H; Liu K; Luo J; Xie CS; Ji A; Zhang TX
收藏  |  浏览/下载:48/5  |  提交时间:2011/07/06
New LED illumination optical engine for micro-projection display (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, April 26, 2010 - April 29, 2010, Dalian, China
作者:  
Meng Z.;  Meng Z.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
A new optical engine consisting of LEDs  rectangular CPC  rectangular lens array and micro display chip DMD is designed by using of KOLA illumination algorithm for micro-projection display. Detail description and analysis of the rectangular CPC and rectangular lens array are provided. The influence due to the size of rectangular CPC and rectangular lens array is analysed for illuminance uniformity on the DMD chip and light energy efficiency of the optical engine system by software ZEMAX. Based on the analysis of parameter of rectangular lens array  the size of rectangular lens array more decrease the illumination uniformity. Experimental results show that the proposed illumination light optical engine can obtain perfect rectangular focula with higher light uniformity more than 90 % and higher energy efficiency of 40 % to meet the needs of micro-projection display  at the same time the designed illumination optical engine compared with other uniformizing light algorithm have advantages such as: lesser capacity  high illumination uniformity. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Variable-Focus Liquid Microlenses with Adjustable 3-D Curved Housings 期刊论文  OAI收割
langmuir, 2010, 卷号: 26, 期号: 9, 页码: 6350-6356
Hu BH; Xue LJ; Yang P; Han YC
收藏  |  浏览/下载:17/0  |  提交时间:2012/06/06
Design of optical lens for space tridimensional mapping camera (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China
作者:  
Wang Z.;  Wang Z.;  Zhang L.-P.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
Three-linear array tridimensional mapping camera consists of three independent linear CCD cameras. Unique position must be kept among the three linear CCD cameras. Optical lens is one of pivotal parts  MTF  the ground resolution power is 5m  resolving power  the distortion is 3/10000. They meet the need of user. 2009 SPIE.  distortion are its important techno-items. The optical lens of space tridimensional mapping camera is the key to accomplish the tridimensional mapping mission. In order to meet the need of user  a design on optical lens of transmission semi-telecentric beam path in image space is expounded  and assembly method based on DFT(Design For Test) of single lens suit and whole optical lens are expounded. The test results indicates that the MTF of optical lens referred in the paper is 0.45(@77lp/mm)  
Beam collimation of high-power laser diode array with graded-index fiber lens array 期刊论文  OAI收割
opt. eng., 2008, 卷号: 47, 期号: 5, 页码: 54202
Tang Yu-Long; Niu Jin-Fu; Yang Yong; 徐剑秋
收藏  |  浏览/下载:1121/220  |  提交时间:2009/09/18
Analysis on Shack-Hartmann wave-front sensor with Fourier optics 期刊论文  OAI收割
OPTICS AND LASER TECHNOLOGY, 2007, 卷号: 39, 期号: 7, 页码: 1374-1379
作者:  
Dai, Yang;  Li, Faquan;  Cheng, Xuewu;  Jiang, Zhiling;  Gong, Shunsheng
收藏  |  浏览/下载:19/0  |  提交时间:2015/09/06
Design of dual-FOV refractive/diffractive LWIR optical system (EI CONFERENCE) 会议论文  OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Advanced Optical Manufacturing Technologies, July 8, 2007 - July 12, 2007, Chengdu, China
作者:  
Wang L.-J.;  Zhang J.-P.;  Wang L.-J.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载:33/0  |  提交时间:2013/03/25
An infrared-optical zoom system using binary element is proposed in this paper. The two main advantages of the zoom system introducing here are: bigger F-number and lower cost. The primary optical properties are: F/#=1  Second  Others  zoom ratio =1:4  binary element is used to correct the chromatical aberration by taking the advantage of negative dispersion characteristics and the cost of the system is lower than that of conventional ones with Zinc Selenide (Znse) material at the same level. In the binary element is rotational symmetric with one step which is easy to fabricate  in order to balance 5th spherical aberration  and dual field are 26.6 and 5.6respectively. Wider field of view is used for search and the smaller one is used for imaging details. This system uses un-cooled infrared detector with 320240 pixels and 45m pixel size. The F-number matches the sensitivity range of the detector array. Three aspects are considered during design process to make the system more satisfactory and more achievable. First  5th coma aberration and 5th astigmatic aberration  the manner of zoom is accomplished by exchanging tow lenses into the smaller field of view system layout. The lens exchange manner faces the requirement of simple system structure and good image quality in both focal points. It can also make the system more feasible in the alignment process than mechanical-zooming manner and optical-zooming manner  high-order asphere surfaces with 2th order to 10 th order are also hired in the system. Asphere surface is useful in compressing the system and improving optical system transmittance. This kind asphere surface is on industrial level featuring low cost and easy to fabricate. It is shown that good image quality can achieved by implementing five Germanium lenses and the transmittance of system is 72%. All aberrations are diffraction-limited  both spherical aberration and astigmatic aberration are corrected. When the field of view(FOV) is 26.6 and the focal length is 152mm  MTF at Nyquist frequency(11lp/mm) is great than 0.7. The spherical aberration is -0.0073. The coma aberration is 0.0978 and the astigmatic aberration is -0.013. When the field of view(FOV) is 5.6 and the focal length is 38mm  MTF at Nyquist frequency is great than 0.8 with spherical aberration -0.0046  the coma aberration 0.055 and astigmatic aberration 0.034.  
Beam smoothing by lens array with spectral dispersion 期刊论文  OAI收割
opt. commun., 2007, 卷号: 272, 期号: 1, 页码: 186, 191
Zhou Shenlei; 林尊琪; Jiang Xiujuan
收藏  |  浏览/下载:1541/337  |  提交时间:2009/09/18