Fig. 1. （a）Schematic diagram of floating electrode liquid crystal lens；（b）Capacitance equivalent circuit diagram of floating electrode liquid crystal lens resistor.

Fig. 2. （a）RMSOPD for resistance change of floating electrode；（b）Optical path distribution curves of floating electrode with different resistance values.

Fig. 3. The best square resistance of floating electrode changing with film thickness of dielectric layer graph

Fig. 4. （a）Focal length of floating electrode liquid crystal lens varies with frequency；（b）RMSOPD of floating electrode liquid crystal lens at different focal lengths.