Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Transducer and Microsystem Technologies》 2011-02
Add to Favorite Get Latest Update

Research of high precision fast focus method for optical auto-detector

CHENG Liang-lun,PAN Jian-hua(School of Automation,Guangdong University of Technology,Guangzhou 510006,China)  
To improve the auto-focus(AF)accuracy,speed and stability of optical auto-analyzer,a novel fast high precision AF technology is proposed.Laser beam is condensed to the working table and then the image of laser pattern is formed at the CCD based on laser trigonometry.So the change of gray spot can be used to realize focusing.Experimental results show that repetition focusing precision can reach 0.1μm,focusing time is less than 200ms,and can meet practical application requirements for the industrial optical inspection systems.
【Fund】: 广东省教育厅产学研联合项目(2007A090302071 2009B090300242)
【CateGory Index】: TP216
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
Chinese Journal Full-text Database 4 Hits
1 YAN Jun,DONG Zhihua(College of Communication and Information Engineering,Shanghai University,Shanghai 200072,China);Method for CCD Superresolved Position Measurement and Capability Analysis[J];Journal of Test and Measurement Technology;2006-03
2 LIANG Min-hua1,2,WU Zhi-yong1, CHEN Tao1(1.Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences,Changchun 130022,China;2.Graduate University of Chinese Academy of Sciences, Beijing 10039,China);Auto-focusing adjustment of theodolites by largest the gradient method[J];Optics and Precision Engineering;2009-12
3 FAN Fu-ming1,CHENG Liang-lun1,WANG Xiao-fen2,PAN Jian-hua1 ( 1. Faculty of Automation, Guangdong University of Technology, Guangzhou 510006, China; 2. Institute of Opt-mechatronics, Guilin University of Electronic Technology, Guilin 541004, Guangxi Zhuang Autonomous Region, China );A New Type of High-speed Automatic Focusing System[J];Opto-Electronic Engineering;2010-05
4 SHANG Xue-jun1,HE Ming-yi1,WANG Jun-liang2(1.School of Electronics and Information,Northwestern Polytechnic University,Xi′an 710072,China;2.Department of Automobile,Xi′an Militaty Academy,Xi′an 710408,China);Research of Method in Light-spot Location Based on Linear CCD[J];Laser & Infrared;2008-07
Chinese Journal Full-text Database 9 Hits
1 Zhao Zhibin1,2 Liu Jinghong11Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun,Jilin 130033,China2Graduate University of Chinese Academy of Sciences,Beijing 100049,China;Power Spectra-Based Auto-Focusing Method for Airborne Optoelectronic Platform[J];Acta Optica Sinica;2010-12
2 NIU Yue,Lü Yong(School of Photoelectric Information and Telecommunication Engineering,Beijing Information Science and Technology University,Beijing 100192,China);Design of a collimated LED spot location system[J];Journal of Beijing Information Science & Technology University;2010-04
3 Mou Jian;Research of Digital Aerial Camera Laboratory Calibration[J];Geospatial Information;2011-01
4 GUO Rong-Li,HU Xiao-Ying,HU Jia-Xing,LIU Bao-Yuan(School of Optoelectronic Engineering,Xi'an Technological University,Xi'an Shaanxi 710032,China);Designing of Mirco-displacement Measuring System Based on Linear CCD[J];Development & Innovation of Machinery & Electrical Products;2009-06
5 ZHANG Hai-zhuang,LI Zhong-min,CHU Zhen-feng,LIU Zhi-lin,XIA Run-bo(63880 PLA,Henan Mengzhou 454750,China);Distant field laser facula center survey based on circle localization algorithm[J];Laser & Infrared;2011-01
6 Fan Fuming Cheng Lianglun(Faculty of Automation,Guangdong University of Technology,Guangzhou,Guangdong 510006,China);A Fast Detection and Compensation of Microscope Defocus Method Based on Laser Triangulation Method on TFT-LCD Inspection[J];Chinese Journal of Lasers;2011-02
7 Zhou Hongfeng Wang Dongyun Huang Tiru Yang Guangdi(Department of Mathematics and Physics,Lincang Teachers College,Lincang 677000,China);The Study of Measure Model and Optical Path Design of Small Angle Measured by Laser Triangulation[J];Journal of Yunnan Nationalities University(Natural Sciences Edition);2008-03
8 FENG Chi,MENG Hao (College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China);Recognition algorithms comparasion of double laser spot centers[J];Applied Science and Technology;2009-08
9 ZHAO Zhi-bin1,2,LIU Jing-hong1 (1.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130031,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100039,China);Auto-Focusing Method for Airborne Image Equipment Based on Image Processing[J];Chinese Journal of Liquid Crystals and Displays;2010-06
【Secondary Citations】
Chinese Journal Full-text Database 10 Hits
1 TANG Guan-qun(School of Photoelectric Information and Telecommunication Engineering,Beijing Information Science and Technology University,Beijing 100192,China);Analysis and comparison of several calculation methods of beam spot center[J];Journal of Beijing Institute of Machinery;2009-01
2 JIN Wen-yan ,ZHAO Hui~,TAO Wei (Dep. of Instrumentation Engineering of Shanghai Jiao Tong University, Shanghai 200030, China);Modeling of Laser Triangulation Sensor and Parameters Optimization[J];Chinese Journal of Sensors and Actuators;2006-04
3 Gao Zan Jiang Wei Zhu Kongfeng(School of Information Science and Engineering, Shandong University, Jinan, 250100, China);Auto-focusing Algorithm Based on Most Gradient and Threshold[J];Journal of Electronic Measurement and Instrument;2007-05
4 FENG Hua-jun , MAO Bang-fu , LI Qi , XU Zhi-hai (State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China);An auto-focusing system used for digital imaging[J];Opto-electronic Engineering;2004-10
5 LIU Li-shuang1,SUN Shuang-hua2,Lü Nai-guang1,DENG Wen-yi1 ( 1. School of Optoelectronic Information & Telecommunication Engineering, Beijing Information Science and Technology University, Beijing 100192, China; 2. Division of Metrology in Length and Precision Engineering, National Institute of Metrology, Beijing 100013, China );Focusing Evaluation Method Based on Edge Tracking[J];Opto-Electronic Engineering;2008-07
6 Let Zhihui; Yu Qifeng(Department of Aerospace Technology, NUDT, Changsha, 410073);Subpixel Techniques and Its Application in Grid Method[J];JOURNAL OF NATIONAL UNIVERSITY OF DEFENSE TECHNOLOGY;1996-04
7 XIE Lun-zhi BIAN Hong-lin WANG Zhen-hua (Huazhong Institute of Electro-Optics, Wuhan 430073, China);Study of the Subpixel Interpolation of Image Spots with Matrix Detectors[J];Optics & Optoelectronic Technology;2003-02
8 ZHAO Hui, BAO Ge-tang, TAO Wei (Department of Instrumentation Engineering, Shanghai Jiao Tong University, Shanghai 200030,China);Experimental research and analysis of automatic focusing function for imaging measurement[J];Optics and Precision Engineering;2004-05
9 ZHU Zheng-tao~(1,2),LI Shao-fa~1,CHEN Hua-ping~2 (1.College of Computer Science and Engineering, South China Univ. of Tech., Guangzhou 510640,China;2.College of Information Engineering, Guangdong Univ. of Tech., Guangzhou 510640,China);Research on auto-focused function based on the image entropy[J];Optics and Precision Engineering;2004-05
10 WANG Qian,SONG En-min,XU Xiang-yang,LIU Hong(School of Computer Science and Technology,Huazhong University of Science and Technology,Wuhan 430074,China);Auto-focusing function for microscope image based on weighted neighborhood correlation[J];Optics and Precision Engineering;2008-01
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved