Yiyao Hu, Zhiqiang Liu, Tao Sun, Yi Tao. Local Zoom Imaging System Using Liquid Crystal Lens[J]. Acta Optica Sinica, 2022, 42(23): 2311001
- Acta Optica Sinica
- Vol. 42, Issue 23, 2311001 (2022)
Fig. 1. Optical path of local zoom imaging system
Fig. 2. Schematic diagram of each parameter of system
Fig. 3. Zoom ratio and LC positive lens focal length varying with LC negative lens focal length
Fig. 4. Diagram of experimental setup
Fig. 5. Liquid crystal lens diagram
Fig. 6. Working principle of double polarizers
Fig. 7. Imaging results for different zoom ratios. (a)
Fig. 8. MTF curves. (a) MTF curve for large field of view; (b) MTF curve for small field of view after zooming
Fig. 9. Imaging results of distant objects. (a) Imaging result when liquid crystal lens is not working; (b) imaging result when liquid crystal lens is working
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Table 1. Voltage and focal length of liquid crystal lens corresponding to different zoom ratios
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