ScienceDaily: Computers & Math News |
| Researchers combine piezoelectric thin film and metasurfaces to create lens with tunable focus Posted: 17 Feb 2022 09:23 AM PST Tunability in lenses typically requires bulky components, but researchers have created a metasurface lens that uses a piezoelectric thin film to change focal length when a small voltage is applied. The compact and lightweight lens could be useful for portable medical diagnostic instruments, drone-based 3D mapping and other applications where miniaturization can open new possibilities. |
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