1. Date of download: 7/2/2016 Copyright © 2016 SPIE. All rights reserved. Holographic interference between plane waves and spherical waves. Figure Legend: From: Multi-imaging characteristics of electrically controlled on-axis holographic polymer- dispersed liquid-crystal Fresnel lens Opt. Eng. 2015;54(3):037110. doi:10.1117/1.OE.54.3.037110

2. Date of download: 7/2/2016 Copyright © 2016 SPIE. All rights reserved. Optical fabrication system of holographic polymer-dispersed liquid-crystal (H-PDLC) Fresnel lens. Figure Legend: From: Multi-imaging characteristics of electrically controlled on-axis holographic polymer- dispersed liquid-crystal Fresnel lens Opt. Eng. 2015;54(3):037110. doi:10.1117/1.OE.54.3.037110

3. Date of download: 7/2/2016 Copyright © 2016 SPIE. All rights reserved. H-PDLC Fresnel lens observed with 40× microscopy. Figure Legend: From: Multi-imaging characteristics of electrically controlled on-axis holographic polymer- dispersed liquid-crystal Fresnel lens Opt. Eng. 2015;54(3):037110. doi:10.1117/1.OE.54.3.037110

4. Date of download: 7/2/2016 Copyright © 2016 SPIE. All rights reserved. Optical system of imaging experiment for H-PDLC Fresnel lens. Figure Legend: From: Multi-imaging characteristics of electrically controlled on-axis holographic polymer- dispersed liquid-crystal Fresnel lens Opt. Eng. 2015;54(3):037110. doi:10.1117/1.OE.54.3.037110

5. Date of download: 7/2/2016 Copyright © 2016 SPIE. All rights reserved. Multifocus points of H-PDLC Fresnel lens, (a), (b) and (c) show the multifocus points when the observation screen is moved to the f/3-position, f-position, and 2f-position, respectively. Figure Legend: From: Multi-imaging characteristics of electrically controlled on-axis holographic polymer- dispersed liquid-crystal Fresnel lens Opt. Eng. 2015;54(3):037110. doi:10.1117/1.OE.54.3.037110

6. Date of download: 7/2/2016 Copyright © 2016 SPIE. All rights reserved. Multi-imaging characteristics of H-PDLC Fresnel lens. Figure Legend: From: Multi-imaging characteristics of electrically controlled on-axis holographic polymer- dispersed liquid-crystal Fresnel lens Opt. Eng. 2015;54(3):037110. doi:10.1117/1.OE.54.3.037110

7. Date of download: 7/2/2016 Copyright © 2016 SPIE. All rights reserved. Diffraction diagram of a parallel incident beam projected onto the edge of the +x axis. Figure Legend: From: Multi-imaging characteristics of electrically controlled on-axis holographic polymer- dispersed liquid-crystal Fresnel lens Opt. Eng. 2015;54(3):037110. doi:10.1117/1.OE.54.3.037110

8. Date of download: 7/2/2016 Copyright © 2016 SPIE. All rights reserved. Geometric diagram of positive orders of diffraction images of H-PDLC Fresnel lens. Figure Legend: From: Multi-imaging characteristics of electrically controlled on-axis holographic polymer- dispersed liquid-crystal Fresnel lens Opt. Eng. 2015;54(3):037110. doi:10.1117/1.OE.54.3.037110

9. Date of download: 7/2/2016 Copyright © 2016 SPIE. All rights reserved. Geometric diagram of negative orders of diffraction images of H-PDLC Fresnel lens. Figure Legend: From: Multi-imaging characteristics of electrically controlled on-axis holographic polymer- dispersed liquid-crystal Fresnel lens Opt. Eng. 2015;54(3):037110. doi:10.1117/1.OE.54.3.037110

10. Date of download: 7/2/2016 Copyright © 2016 SPIE. All rights reserved. Electrical controlled diffraction efficiency of H-PDLC Fresnel lens, (a), (b), (c) and (d) show that the external voltage applied on the Fresnel lens is 0 V, 40 V, 80 V, and 120 V, respectively. Figure Legend: From: Multi-imaging characteristics of electrically controlled on-axis holographic polymer- dispersed liquid-crystal Fresnel lens Opt. Eng. 2015;54(3):037110. doi:10.1117/1.OE.54.3.037110