Fig. 1. Schematic diagram of LC cell

Fig. 2. Shape of electrode used in experiment

Fig. 3. （a）Schematic diagram of experimental setup；（b）Liquid crystal phase response curve with voltage.

Fig. 4. （a）Wavefront map of the linear region；（b）Wavefront map of the nonlinear region；（c）Phase curve of the linear region；（d）Phase curve of the nonlinear region.

Fig. 5. RMS aberration and optical power of LC lens change with ∆V

Fig. 6. （a）Experimental setup. The imaging system composed of the camera module and the LC lens captures the image of the ISO12233 chart；（b）LC lens and camera module. The LC lens is closely in contact with the camera module.

Fig. 7. MTF50 changing with distance

Fig. 8. （a）When d=25 cm and V1=1.60 V，the image MTF50 changes with V2；（b）MTF50 of the chart at different positions changing before/after LC lens tuning.

Fig. 9. Images before/after LC lens tuning

Fig. 10. （a）LC lens on，in a positive lens state，focusing on the small yellow bear；（b）LC lens off，focusing on the flower pot；（c）LC lens on，in a negative lens state，focusing on the polar bear.