5 ms·Mechanically Actuated Optical Surfaces for Switchable Appearances on 3D Objects2 points by stefanv 8d agostefanv 8d agoAnd a video demonstration/explanation https://youtu.be/KJK-DvgmRNs?is=k5HtcI5fsvnMAIyY https://youtu.be/KJK-DvgmRNs?is=k5HtcI5fsvnMAIyY