Electrostatic Brakes for Camera Modules

Organization Name

Inventor(s)

Zachary W. Birnbaum of Santa Clara CA US

Electrostatic Brakes for Camera Modules

This abstract first appeared for US patent application 20250106491 titled 'Electrostatic Brakes for Camera Modules

Original Abstract Submitted

embodiments disclosed herein relate to a camera module having a lens holder with a lens module, a sensor carrier with an image sensor positioned to receive light from the lens module, and an electrostatic brake assembly. the sensor carrier is moveable relative to the lens holder along a first direction. the electrostatic brake assembly is configured to lock a relative position between the sensor carrier and the lens holder in the first direction. the electrostatic brake assembly includes a first plate attached to the lens holder, a second plate attached to the sensor carrier, a first driver for charging the first plate to a first voltage, and a second driver for charging the second plate to a second voltage. a voltage differential between the first plate and the second plate locks the relative position between the sensor carrier and the lens holder.