Laser & Optoelectronics Progress, Volume. 60, Issue 19, 1923002(2023)
Tunable Fresnel Liquid Crystal Lens with Large Aperture
Figures & Tables(9)
Fig. 1. Structures of Fresnel liquid crystal lens. (a) Cutaway view; (b) layer of pattern electrode; (c) interdigitate electrode; (d) microscope photograph of interdigitate electrode
Fig. 3. Interference ring of the Fresnel liquid crystal lens. (a)‒(f) Interference fringe pattern; (g) partial enlargement drawing
Fig. 4. Phase profile of the Fresnel liquid crystal lens (Power is 1.57D). (a) Fitted curve with measured data; (b) phase profile after quantization
Fig. 5. Phase profile of the Fresnel liquid crystal lens (Power is -1.62D). (a) Fitted curve with measured data; (b) phase profile after quantization
Fig. 6. Optical path diagrams of zoom imaging system. (a) Experimental scene; (b) schematic diagram of experiment
Table 1. Voltage and power corresponding to interference ring
View tableTable 1. Voltage and power corresponding to interference ring
State of the lens Image Voltage（peak-to-peak） /V Frequency /Hz Power /D Electrode 1 Electrode 2 Electrode 3 Convex lens Fig. 3 （a）1.00 1.80 2.60 1000 0.59 Fig. 3 （b）0.00 1.55 3.10 1000 1.11 Fig. 3 （c）0.00 1.85 3.70 1000 1.57 Concave lens Fig. 3 （d）4.00 2.60 1.20 1000 -0.79 Fig. 3 （e）4.00 2.25 0.50 1000 -1.26 Fig. 3 （f）4.00 2.00 0.00 1000 -1.62
Table 2. Relationship between object distance and power of Fresnel liquid crystal lens
View tableTable 2. Relationship between object distance and power of Fresnel liquid crystal lens
Power /D Theory of object distance /cm Actual object distance /cm 0 68 -0.79 146.93 128 0.59 48.53 47 1.57 32.89 33
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Zhenhao Huang, Zhiqiang Liu, Hongjun Lin, Mao Ye. Tunable Fresnel Liquid Crystal Lens with Large Aperture[J]. Laser & Optoelectronics Progress, 2023, 60(19): 1923002
Paper Information
Category: Optical Devices
Received: Apr. 9, 2022
Accepted: Jun. 13, 2022
Published Online: Sep. 28, 2023
The Author Email: Mao Ye (mao_ye@uestc.edu.cn)
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