Tunable-focus cylindrical lens

In order to have a large aperture size, four possible configurations have been considered as shown in A to D. In configuration A, a slit electrode is coated on the outer surface of the top substrate, whereas a continuous electrode is coated on the outer surface of the bottom substrate. In configuration B, a slit electrode is coated on the outer surface of both top and bottom substrates. The two slits are parallel and symmetrical. In configuration C, a slit electrode is coated on the outer surface of the top substrate whereas a continuous electrode is coated on 

To optimize the lens design, we need to know the LC director profiles of the above foiu device configurations. Several commercial software packages are available and can be used to calculate the LC directors distribution. The parameters used in the simulations are // = 14.9, e = 3.3, = 20.3 pN, = 33.8 pN, rig = 1.9653, and = 1-5253. First, we need 

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