Abstract

Liquid crystal lens array for 3D capturing images in particular the acquisition of medical images by an endoscope will be presented. To demonstrate the potential of this approach and its suitability for medical imaging, an array of LC lens in a hexagonal arrangement is investigated. The primary goal is to determine a convex-ring electrode not as a lens itself but as a surrounding electrode which makes better transparency and tunability for LC lens for a 2D/3D switchable endoscope. The focus tunability of LC lenses when switched into 2D or 3D mode is another important factor. The proposed multifunctional LC lens (MFLC-lens), is able to switch to and from 2D and 3D modes, and can further change the focus in both modes. The system is investigated by using dual-layer electrodes and a semi-layer film.  Experimental procedures, apparatus, and results are discussed.

Speaker's Biography

Han-Ping D. Shieh received his BS degree from National Taiwan University in1975 and Ph.D. in Electrical and Computer Engineering from Carnegie Mellon University, Pittsburgh, PA, U.S.A. in 1987. He joined National Chiao Tung University (NCTU) in Hsinchu, Taiwan as a professor at Institute of Opto-Electronic Engineering and Microelectronics and Information Research Center (MIRC) in 1992 after as a Research Staff Member at IBM TJ Watson Research Center, Yorktown Heights, NY, USA since 1988. He founded and served as the Director, Display Institute at NCTU in 2003, the first such kind of graduate academic institute in the world dedicated for display education and research. He was appointed as a co-PI of “Display Science and Technology Large-Scale Project” in 2004, a national project to drive Taiwan display into new era. He served as the Dean, College of Electrical and Computer Engineering, NCTU 2006 -2010, then Senior Vice President, NCTU, 2011-2013. He is now an NCTU Chair Professor and Vice Chancellor, University System of Taiwan since 2013. He is a Chang Jiang Scholar(长江学者讲座教授) and a Chair Professor (讲席教授) at Shanghai Jiao Tong University since 2010. He was awarded 2014 SID Slottow-Owaki Prize for his outstanding contributions to information-display education, 2014 Taiwan Invention Gold Award for “Eco-Display”, and 2015 “You-Young” Chair Professor in Photonics in 2015.  His current research interests are in display, optical MEMS, nano-optical components, and thin film solar energy. He has served as a Director, SID (Society for Information Display), and as program chair, committee member, organized conferences in major data storage (ISOM, MORIS, Intermag, ODS, APDSC) and display (SID, IDRC, IDMC, ASID, FPD Expo, etc.). He is the fellow of IEEE, OSA and SID (Society for Information Display).