Rapid depth estimation based on a key electrowetting liquid-lens with electrically adjusted imaging focus

• DOI: 10.1063/5.0225689
• Publication Date: 2025-05-13T12:54:53Z
• Authors: Chunyu Zhang; Yuxiang Xu; Xinyu Zhang
• Keywords: SIGNAL (programming language)

An effective method for rapidly performing depth estimation using a type of electrowetting liquid-lens is proposed. The architectured by directly coupling cylindrical copper sidewall electrode and top ITO electrode, leading to dual-mode lens adjusted electrically, including beam diverging mode converging mode, also an intermedium phase retard state. By increasing the applied signal voltage from 0 120 V, focus presents wide dynamic range (-∞, −128.6 mm) ∪ (45.6 mm, +∞). key performances liquid-lens, such as tunable electrically element response duration less than 5 ms, are evaluated experimentally. sweeping over coupled with arrayed CMOS sensor form imaging setup, sequence images focal stack acquired. Considering character field equipment mainly based on can be remarkably extended further utilizing effect in transition region between positive negative focus. A rapid algorithm aligning then eliminating scene parallax achieved.