Acta Optica Sinica, Volume. 41, Issue 5, 0522004(2021)
Design and Analysis of Liquid Lens Driven by Dielectric Elastomer
Figures & Tables(10)
Fig. 1. Schematic diagram of the tunable liquid lens driven by dielectric elastomer
Fig. 2. Contours of different membranes. (a) Contours of the active membrane under different initial liquid pressures; (b) contours of the lens membrane under different initial liquid pressures; (c) contours of the active membrane under different driving voltages; (d) contours of the lens membrane under different driving voltages
Fig. 3. Focal length of the liquid lens. (a) Liquid pressure and focal length of the liquid lens under different driving voltages; (b) focal length of the liquid lens under different initial liquid pressures and driving voltages
Fig. 4. Setup diagram of the experiment. (a) Measuring device for back focal length of the liquid lens; (b) theory and measurement results
Fig. 5. Influence of the Young's modulus on the focal length of the lens. (a) Relationship between the sagitta of the active membrane and the initial liquid pressure and driving voltage; (b) relationship between the sagitta of the lens membrane and the initial liquid pressure and driving voltage; (c) focal length of the liquid lens and the initial liquid pressure and driving voltage; (d) focal length of the liquid lens under different driving voltages
Fig. 6. Influence of the residual stress of the dielectric elastomer on the focal length of the lens. (a) Relationship between the focal length of the liquid lens and the initial liquid pressure and driving voltage; (b) focal length of the liquid lens under different driving voltages
Fig. 7. Influence of the thickness of the dielectric elastomer on the focal length of the lens. (a) Relationship between the focal length of the liquid lens and the initial liquid pressure and driving voltage; (b) focal length of the liquid lens under different driving voltages
Fig. 8. Influence of the radius of the dielectric elastomer on the focal length of the lens. (a) Relationship between the focal length of the liquid lens and the initial liquid pressure and driving voltage; (b) focal length of the liquid lens under different driving voltages
Table 1. Structural and material parameters of active and lens membranes
View tableTable 1. Structural and material parameters of active and lens membranes
Material Parameter Value Ea /MPa 0.5, 1, 1.5 νa 0.49 σa,fab /kPa 30, 60, 90 Active membrane λa,p 1.0 t0,a /μm 30, 60, 90 ra /mm 2,4,6 εr 2.75 Ep /MPa 1 νp 0.49 σp,fab /kPa 30 Lens membrane λp,p 1.0 t0,p /μm 30 rp /mm 1 εr 2.75
Table 2. Influence of different structural and material parameters of the dielectric elastomer on the focal length of liquid lens
View tableTable 2. Influence of different structural and material parameters of the dielectric elastomer on the focal length of liquid lens
Parameters Ea σa,fab t0,a ra Multiple of increase 2.0 3.0 2.0 3.0 2.0 3.0 2.0 3.0 Relative change ratio /% -12.7 -18.2 -14.7 -19.6 -26.5 -30.4 -12.5 -18.4
Tools
Get Citation
Copy Citation Text
Yang Cheng, Jie Cao, Yingbo Wang, Yan Ning, Qun Hao. Design and Analysis of Liquid Lens Driven by Dielectric Elastomer[J]. Acta Optica Sinica, 2021, 41(5): 0522004
Paper Information
Category: Optical Design and Fabrication
Received: Sep. 7, 2020
Accepted: Nov. 2, 2020
Published Online: Apr. 7, 2021
The Author Email: Hao Qun (qhao@bit.edu.cn)
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20