Results 11 to 20 of about 92,796 (294)
Adaptive dielectric liquid lens
Optics Express, 2008 A tunable-focus liquid lens using dielectrophoretic effect is demonstrated. When a voltage is applied to a dielectric liquid droplet, the generated electric field inside the droplet is inhomogeneous. As a result, the liquid bears a dielectric force and its surface profile can be reshaped which causes the focal length to change.
Ren, Hongwen +3 more
openaire +5 more sources
Photoaligned Tunable Liquid Crystal Lenses with Parabolic Phase Profile
Crystals, 2023 We present a theoretical model of a cylindrical tunable liquid crystal lens based on the modulation of anchoring energy. The latter can be easily obtained using photoalignment techniques.
Svitlana P. Bielykh +2 more
doaj +2 more sources
Optimization of Zoom Lens with Discrete State of Liquid Lens Elements by Using Genetic Algorithm [PDF]
Advances in Materials Science and Engineering, 2015 This paper is to employ liquid lens elements to design a lens with zoom function by using the genetic algorithm (GA) optimization. The liquid lens elements used in the proposal can apply voltage adjustment to generate the electrical field that induces ...
Cheng-Mu Tsai
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Crystals, 2019 Liquid crystals are excellent candidates for tunable optical elements due to their large birefringence and continuous tunability by external fields. A dual-frequency liquid crystal lens integrated with Pancharatnam⁻Berry phase was fabricated via a ...
Wei Duan +4 more
doaj +2 more sources
Tunable Focus Liquid Lens with Radial-Patterned Electrode
Micromachines, 2015 A dielectric liquid lens is prepared based on our previous work. By optimizing the device structure, the liquid lens presents a converging focus with good resolution and changes its focal length over a broad range with a low driving voltage. For a liquid
Miao Xu, Xiahui Wang, Hongwen Ren
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A Novel Lens for Cell Volume Regulation: Liquid–Liquid Phase Separation
Cellular Physiology and Biochemistry, 2021 Cells are constantly exposed to the risk of volume perturbation under physiological conditions. The increase or decrease in cell volume accompanies intracellular changes in cell membrane tension, ionic strength/concentration and macromolecular crowding.
Shunya Ishihara +2 more
doaj +3 more sources
Electrically Tunable Lenses for Imaging and Light Manipulation
Micromachines, 2023 Optofluidics seamlessly combines optics and microfluidics together to construct novel devices for microsystems, providing flexible reconfigurability and high compatibility.
Lijun Chen +4 more
doaj +1 more source
Movable and Focus-Tunable Lens Based on Electrically Controllable Liquid: A Lattice Boltzmann Study
Entropy, 2022 Adjusting the focal length by changing the liquid interface of the liquid lens has become a potential method. In this paper, the lattice-Boltzmann-electrodynamic (LB-ED) method is used to numerically investigate the zooming process of a movable and focus-
Fei Wang +3 more
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Self-Similar Liquid Lens Coalescence [PDF]
Physical Review Letters, 2020 A basic feature of liquid drops is that they can merge upon contact to form a larger drop. In spite of its importance to various applications, drop coalescence on pre-wetted substrates has received little attention. Here, we experimentally and theoretically reveal the dynamics of drop coalescence on a thick layer of a low-viscosity liquid.
Hack, Michiel A. +6 more
openaire +6 more sources
Holographic Zoom System With Large Focal Depth Based on Adjustable Lens
IEEE Access, 2020 In this paper, we propose a holographic zoom system based on two adjustable lenses. Different from the traditional holographic system, a digital conical lens and a liquid lens are used as the zoomable lenses.
Di Wang +3 more
doaj +1 more source