When you arrive home after dark it can be difficult to correctly insert your key into the keyhole. Concave Lock was designed to address this problem. An annulus device with fluorescent material illuminates the lock in the dark, and a concave surface on the lock helps users correctly slide the key into the keyhole on the first try.

Credits: National Chiao Tung University and Poh Liang-Hock
Contact: Liang-Hock Poh: [email protected]