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浏览/检索结果: 共14条,第1-10条 帮助

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Precision test technology of liquid refractive index using the method of minimum deviation angle 期刊论文  OAI收割
Chinese Optics, 2019, 卷号: 12, 期号: 4, 页码: 826-832
作者:  
Y.-S.Sun;  C.Y;  H.B;  Y.L
  |  收藏  |  浏览/下载:15/0  |  提交时间:2020/08/24
The advancement of the high precision stress polishing 期刊论文  OAI收割
Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 2016, 卷号: 9683, 页码: 96831F
作者:  
Li, Chaoqiang;  Lei, Baiping;  Han, Yu
  |  收藏  |  浏览/下载:23/0  |  提交时间:2018/06/14
Analysis of surface error correction capability of 1.2m active support system 期刊论文  OAI收割
Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2016, 卷号: 9682, 页码: 96820Q
作者:  
Han, Yu;  Fan, Bin;  Li, Chaoqiang;  Liu, Haitao
  |  收藏  |  浏览/下载:25/0  |  提交时间:2018/06/14
Adaboost multi-view face detection based on YCgCr skin color model 期刊论文  OAI收割
Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technology: Optical Test, Measurement Technology, and Equipment, 2016, 卷号: 9684, 页码: 96842D
作者:  
Lan, Qi;  Xu, Zhiyong
  |  收藏  |  浏览/下载:25/0  |  提交时间:2018/06/14
A method on error analysis for large-aperture optical telescope control system 期刊论文  OAI收割
Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2016, 卷号: 9682, 页码: 96820C
作者:  
Su, Yanrui;  Wang, Qiang;  Yan, Fabao;  Liu, Xiang;  Huang, Yongmei
  |  收藏  |  浏览/下载:29/0  |  提交时间:2018/06/14
Simulation of co-phase error correction of optical multi-aperture imaging system based on stochastic parallel gradient decent algorithm 期刊论文  OAI收割
Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2016, 卷号: 9682, 页码: 96820V
作者:  
He, Xiaojun;  Ma, Haotong;  Luo, Chuanxin
  |  收藏  |  浏览/下载:24/0  |  提交时间:2018/06/14
Study of image motion compensation in spectral imaging system 期刊论文  OAI收割
Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2016, 卷号: 9682, 页码: 968217
作者:  
Li, Zhijun;  Chen, Xing Long
  |  收藏  |  浏览/下载:31/0  |  提交时间:2018/06/14
Gimbal displacement error analysis on an electro-optical seeker (EI CONFERENCE) 会议论文  OAI收割
Optical Design and Testing IV, October 18, 2010 - October 20, 2010, Beijing, China
作者:  
Zhang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载:32/0  |  提交时间:2013/03/25
It is essential to analyze the gimbal displacement errors for a seeker due to the importance for cueing of targets and tracking for the final approach. Otherwise  for a seeker electro-driven with a concentric glass dome  the large errors will decrease the picking  pointing  and tracking precision rooted from the displacement errors existing between the rotation center of the optical system and the gimbal. And the gimbaled camera system displacement errors are never eliminated but reduced due to the geometric errors consists of geometric tolerances of gimbal structure  manufacture  installation and vibration coming from working environment. In this paper  the gimbal displacement errors in an electro-optically stabilized platform resulting from geometric errors and environment errors were analyzed and shown in detail. The mathematical modal of the gimbal displacement errors created based on multi-body dynamics demonstrated the connection between the gimbal displacement errors and the stabilized platform. Taking a visible light image seeker as a case  the diameter is 120mm  and the geometric tolerances came from the values of primary design and the vibration data came from the environmental vibration test on the pitch-yaw seeker  and at the same time  the errors resulting from installation were considered too. Based on calculating  the maximum gimbal displacement error will reach to 0.2mm for pitching angle smaller than 40 and yawing angle smaller than 60. However  the critical parts have been found out according to the probability theory and the reliability analysis successfully used in the paper  and finally  the maximum gimbal displacement error reduced to 0.1mm  which is acceptable corresponding to the picking  pointing and tracking precision for an optical imaging seeker. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Design of co-path scanning long trace profiler for measurement of X-ray space optical elements (EI CONFERENCE) 会议论文  OAI收割
6th International Symposium on Precision Engineering Measurements and Instrumentation, August 8, 2010 - August 11, 2010, Hangzhou, China
Shun L.; Yan G.; Wei Z.; Yang Z.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
Alignment of off-axis asphere and compensator with four poles (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 19, 2008 - November 21, 2008, Chengdu, China
作者:  
Li J.;  Chen Y.;  Li J.;  Li J.;  Wang P.
收藏  |  浏览/下载:58/0  |  提交时间:2013/03/25
Aspheres are utilized widely thanks to the development of optical design  manufacture and testing. Compensators are usually necessary when aspheres are under test. The alignment of aspheres and their compensators is a risk because it's tough to check whether the compensators work in right way. A new method of alignment with four poles is put forward in this paper. Optical interval error can be tight while it is quite important due to direct influence on central curvature  conic constant and high order coefficients of aspherical surface. A modified on-axis Foucault apparatus is set up since it makes the optical axis visible and helps to control the error of off-axis amount. Some small holes are drilled in the metallic cell of the compensator so that the ends of poles can be stably relied on in order to increase operational repeatability. The method has been carried out practically and it matches the measurement result given by a set of theodolites. 2009 SPIE.