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5 January 2004 Novel real-time measurement of cell parameters in reflective liquid crystal cells by using a circularly homogeneously aligned liquid crystal cell
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Abstract
An optical measurement method to determine the cell thickness of reflective liquid crystal (LC) cells is prepared using a polarization-converting device such as a circularly-homogeneously aligned LC (CH-LC) cell and a charge couple device (CCD) camera. Since the minimum point of the spatial light intensity distribution from the reflective LC cell is measured in real time through the CH-LC cell, and then the cell thickness can be derived by the Jones matrix analysis. This method has an advantage that the measurement of the cell thickness is not affected by the reflection component from the surface and interface of glass substrates.
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Marenori Kawamura and Susumu Sato "Novel real-time measurement of cell parameters in reflective liquid crystal cells by using a circularly homogeneously aligned liquid crystal cell", Proc. SPIE 5213, Liquid Crystals VII, (5 January 2004); https://doi.org/10.1117/12.506608
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