This product concept is a low-profile UV sterilization device for door handles. An origami-inspired enclosure folds flat when idle, then expands after each use to contain and treat the contact surface with internal UVC lights. It mounts beside any handle without replacement, helping prevent bacteria and disease transfer in medical environments and other high-traffic spaces.
I built early prototypes with 3D-printed base and hand folded HDPE sheet and a single servo to open and close the mechanism. I experimented with different fold patterns and materials to ensure UVC compatability and proper geometric coverage from a small collapsed state. The final prototype with accordion sterilization housing is shown below.
Demo
Prototype
