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On-orbit calibration of space camera lens distortion using a single image 期刊论文  OAI收割
OPTICS AND LASERS IN ENGINEERING, 2024, 卷号: 177
作者:  
Zhang, Gaopeng;  Wang, Feng;  Zhang, Guangdong;  Zhang, Zhe;  Du, Hubing
  |  收藏  |  浏览/下载:43/0  |  提交时间:2024/08/13
10 kW rectangular laser beam generation with incoherent space combiner 期刊论文  OAI收割
Optik, 2022, 卷号: 260
作者:  
Tian, Xiao;  Bai, Yang;  Lei, Guangzhi;  Yu, Lidong;  Zhou, Jingfeng
  |  收藏  |  浏览/下载:106/0  |  提交时间:2022/05/07
Design and analysis for the flexible support structure of high precision lens assembly 期刊论文  OAI收割
OPTIK, 2018, 卷号: 175, 页码: 228-236
作者:  
Bao, Zhang;  Yan, Gao
  |  收藏  |  浏览/下载:61/0  |  提交时间:2019/08/26
Technology on fabrication of precise SiC aspherical mirror (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Materials and Products Manufacturing Technology, ICMPMT 2011, October 28, 2011 - October 30, 2011, Chengdu, China
Zhang Z.
收藏  |  浏览/下载:34/0  |  提交时间:2013/03/25
This paper represents a technique to produce the large size optical aspherical mirror by using reaction-bonded silicon carbide to meet the material requirements of the space used mirrors  based on the characters comparison of all types mirror material. Techniques are described in this paper  including the bonding procedure of silicon carbide to form a mirror shape  the CCOM technology for aspheric grinding  polishing on a home-developed tool -FSGJ-2  and the aspheric profilometry. A specialized Offner Null lens is also developed to measure the aspherical mirror with laser interferometer. With the technology depicted in the paper  a 502mm 298 mm off-axis SiC aspherical mirror is successfully made with a surface accuracy better than 1/50rms  the final result meets the design requirement. (2011) Trans Tech Publications.  
OHTSUKI'S INVARIANT CANNOT DETERMINE THE FULL SO(3) QUANTUM INVARIANTS 期刊论文  OAI收割
ACTA MATHEMATICA SCIENTIA, 2009, 卷号: 29, 期号: 3, 页码: 642-644
作者:  
Li Banghe;  Li Tianjun
  |  收藏  |  浏览/下载:31/0  |  提交时间:2018/07/30
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:37/0  |  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)  
Compound telescope (EI CONFERENCE) 会议论文  OAI收割
Novel Optical Systems Design and Optimization IX, August 15, 2006 - August 16, 2006, San Diego, CA, United states
作者:  
Liu H.;  Liu H.;  Sun Q.;  Li F.;  Liu H.
收藏  |  浏览/下载:41/0  |  提交时间:2013/03/25
透镜自重变形引起波像差的有限元分析 期刊论文  OAI收割
光学学报, 2005, 卷号: 25, 期号: 4, 页码: 538, 541
张德江; 刘立人; 徐荣伟; 李大汕
收藏  |  浏览/下载:1611/193  |  提交时间:2009/09/18
Study on optical parts of MOEMS optical switch with low insertion loss (EI CONFERENCE) 会议论文  OAI收割
MEMS/MOEMS Technologies and Applications II, November 10, 2004 - November 12, 2004, Beijing, China
作者:  
Wang W.;  Wang L.;  Wang L.;  Wang L.;  Chen W.
收藏  |  浏览/下载:51/0  |  提交时间:2013/03/25
We study insertion losses of optical switch when the laser beam is propagating during the free space between two single mode fibers (SMFs) and the related assemblage challenges  Then a new packaging structure is developed for the hybrid-integration of free-space MOEMS (micro-opto-electro-mechanical systems) chip with a silicon micromachined submount to improve alignment accuracy. The submount is designed to accommodate various free-space MOEMS chips with minimal active optical alignment  thus reducing the packaging cost. The silicon submount has a central recess to place the MOEMS chip in  sixteen V-grooves for optical fibers  and micropits for micro ball lenses  all bulk micromachined at the same time by a single anisotropic wet etching step. A corner compensation technique is employed to prevent erosion of the convex corners  where different geometries meet. Through this assembling method  the fiber  micro ball lens can be aligned preciously thus reduced lateral and angular misalignment between them. Then total insertion losses can be decreased.