FOCAL-PLANE SHUTTER AND OPTICAL DEVICE

摘要

A focal-plane shutter comprises: a substrate having an opening; a curtain for opening and closing the opening; a drive lever which has a drive pin and swings; a drive arm made of a synthetic resin which has an engagement hole engaged with the drive pin and swings around the same center as the swing center of the drive lever to drive the curtain; and a restriction section for restricting the swing range of the drive lever.