BLADE-DRIVING DEVICE, OPTICAL DEVICE, AND METHOD FOR PRODUCING ARM

摘要

This blade-driving device is equipped with a substrate having a hole, a blade for opening/closing the hole, an arm for driving the blade and comprising a synthetic resin, a drive member for driving the arm, and a reinforcing member comprising a synthetic resin and having a laser-welding line formed thereon indicating a mark caused by laser-welding to the arm.