Hot-pluggable battery connection keeps hazardous-environment wearables running during power replacement while preserving intrinsic safety.
A hardware lock cuts camera power in smart glasses and signals recording status with LEDs or AR to block covert capture.
Reconfigurable voltage generators let an electronic contact lens match changing power modes while saving chip area and reducing power use.
Closed conductive turns around the lens edge enable inductive power transfer to ophthalmic electronics without visible wiring that affects aesthetics or vision.