New imaging polariscope for the full-field measurement of twisted-nematic liquid-crystal thickness

Tsung Chih Yu, Yu-Lung Lo

研究成果: Conference contribution

摘要

This study proposes a phase-sensitive imaging polariscope for the mapping of spatially-distributed cell gap of a twisted-nematic liquid crystal (TNLC) with a heterodyne configuration. The polariscope adopts an electric-optic (EO) modulator incorporated with two quarter wave plates to modulate the linear polarized light. By applying an integrating-bucket method, the two-dimensional (2-D) phase distribution of the detected heterodyne signal is extracted for the inverse calculation of the liquid crystal (LC) cell thickness. The experimental results confirm the effectiveness of the proposed method.

原文English
主出版物標題Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007
頁面713-719
頁數7
出版狀態Published - 2007 11月 19
事件SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007 - Springfield, MA, United States
持續時間: 2007 6月 32007 6月 6

出版系列

名字Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007
2

Other

OtherSEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007
國家/地區United States
城市Springfield, MA
期間07-06-0307-06-06

All Science Journal Classification (ASJC) codes

  • 機械工業

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