Design, Fabrication, and Characterization of Tunable Cat's Eye Retroreflector Arrays as Optical Identification Tags

被引:13
作者
Chang, Chih-Chieh [1 ,2 ]
Su, Ming-Chun [1 ,2 ]
Yang, Yu-Cheng [1 ,2 ]
Tsai, Jui-che [1 ,2 ]
机构
[1] Natl Taiwan Univ, Grad Inst Photon & Optoelect, Taipei 10617, Taiwan
[2] Natl Taiwan Univ, Dept Elect Engn, Taipei 10617, Taiwan
关键词
Micro lens array; optical identification; polymer dispersed liquid crystal (PDLC); retroreflector; LIQUID; LENS;
D O I
10.1109/JLT.2013.2291407
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This study has developed an independently-addressed tunable cat's eye retroreflector array for an optical identification system. Switchable cat's eye retroreflectors are achieved by incorporating polymer dispersed liquid crystal film and indium tin oxide (ITO) electrodes into the cat's eye structure. Experiments show that the gap between the front and back units of the cat's eye retroreflector plays a role in the optical performance of the device. The second-generation device is used to realize the optical ID tag. By controlling the ON-OFF state of each pixel, the tunable optical device can generate a dynamic image which carries temporal and spatial codes for the purpose of identification. The ID tag (cat's eye retroreflector array) can operate at two orientations.
引用
收藏
页码:384 / 391
页数:8
相关论文
共 24 条
[1]  
[Anonymous], P IEEE POW ENG SOC G
[2]   Manufacturing of molds for replication of micro cube corner retroreflectors [J].
Brinksmeier, E. ;
Glaebe, R. ;
Flucke, C. .
PRODUCTION ENGINEERING-RESEARCH AND DEVELOPMENT, 2008, 2 (01) :33-38
[3]  
Chang CC, 2012, 2012 INTERNATIONAL CONFERENCE ON OPTICAL MEMS AND NANOPHOTONICS (OMN), P166, DOI 10.1109/OMEMS.2012.6318855
[4]  
Chang CS, 2003, PROC IEEE MICR ELECT, P279
[5]   Fabrication and characterization of a micro tunable cat's eye retro-reflector [J].
Chao, Keng-hsing ;
Liao, Chun-da ;
Yang, Bing-jun ;
Tsai, Jui-che .
OPTICS COMMUNICATIONS, 2011, 284 (21) :5221-5224
[6]   Adaptive liquid microlenses activated by stimuli-responsive hydrogels [J].
Dong, Liang ;
Agarwal, Abhishek K. ;
Beebe, David J. ;
Jiang, Hongrui .
NATURE, 2006, 442 (7102) :551-554
[7]   Holographically formed polymer dispersed liquid crystal films for transmission mode spectrometer applications [J].
Fox, Anna E. ;
Rai, Kashma ;
Fontecchio, Adam K. .
APPLIED OPTICS, 2007, 46 (25) :6277-6282
[8]  
Glaser I., 2007, OPT ENG APPL INT SOC
[9]  
Goetz PG, 2005, 2005 DIGEST OF THE LEOS SUMMER TOPICAL MEETINGS, P49
[10]   Feasibility of retroreflective free-space optical communication using retroreflectors with very wide field of view [J].
Handerek, V ;
Laycock, L .
ADVANCED FREE-SPACE OPTICAL COMMUNICATIONS TECHNIQUES AND TECHNOLOGIES, 2004, 5614 :1-9