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https://www.pi-usa.us/en/tech-blog/laser-beam-focus-control-in-cutting-welding-applications-with-high-speed-deformable-mirror/ A High-Speed Active Optics Piezo Deformable Mirror for Laser Focus Control - Adaptive Optics.
The piezo-driven deformable mirror can operate with modulation frequencies up to 2 kHz. The internal active piezo element provides a motion range of 28 μm, equivalent to a focal place shift to 15 mm (with appropriate optical setup).
Run Time - 0:17mins
Video Credit: PI (Physik Instrumente) LP
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