大学物理 ›› 2016, Vol. 35 ›› Issue (8): 44-47.

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液晶盒双折射效应的测量与应用

廖红波,王婷,何琛娟,王海燕   

  1. 北京师范大学物理系,北京100875
  • 收稿日期:2015-09-08 修回日期:2015-12-11 出版日期:2016-08-20 发布日期:2016-08-20
  • 作者简介:廖红波( 1968—) 女,重庆市人,北京师范大学物理系副教授,博士,主要从事近代物理实验教学与研究

The measurement and application of the birefringence effect in liquid crystal cell

LIAO Hong-bo,WANG Ting,HE Chen-juan,WANG Hai-yan   

  1. Department of Physics,Beijing Normal University,Beijing 100875,China
  • Received:2015-09-08 Revised:2015-12-11 Online:2016-08-20 Published:2016-08-20

摘要: 介绍了测量液晶盒双折射效应的实验方法,并利用此方法推测了液晶盒的表面锚泊方向并测量了液晶盒的扭曲角,探讨了应用此方法校准偏振片起偏方向的可能性.

关键词: 液晶, 双折射效应, 扭曲角

Abstract: An experimental method of measuring the birefringence effect in liquid crystal cell is introduced. By using such a method,the anchoring direction and the twist angle of the liquid crystal cell can be basically determined. The possibility of using this method to calibrate the polarized direction of a polaroid is also discussed.

Key words: liquid crystal, birefringence effect, twist angle