Fig. 1. Structure diagram of liquid crystal Fresnel lens

Fig. 2. Diagram of a nonholonomic ring electrode

Fig. 3. （a）Structure diagram of the peripheral incomplete ring electrode and the peripheral complete ring electrode；（b）Capacitive coupling voltage diagram of a complete ring electrode.

Fig. 4. （a）Voltage distribution of complete ring electrode with different square resistance；（b）Optical path difference distribution of complete ring electrode with different square resistance.

Fig. 5. Position diagram of the complete ring in the sidelobe

Fig. 6. （a）Ring optical path difference distribution of square resistance 5 MΩ/□；（b）Ring optical path difference distribution of square resistance 12 MΩ/□；（c）Ring optical path difference distribution of square resistance 100 MΩ/□.

Fig. 7. Longitudinal and transverse diagram of the lens

Fig. 8. （a）Longitudinal optical path difference distribution of optical focal 1 D；（b）Transverse optical path difference distribution of optical focal 1 D.

Fig. 9. （a）Longitudinal optical path difference distribution of optical focus -1 D；（b）Transverse optical path difference distribution of optical focal -1 D.