Focal puren shutter and imaging device

摘要

PROBLEM TO BE SOLVED: To prevent dust generated at the time of blade operation from scattering toward an image sensor in a focal plane shutter. SOLUTION: In a focal plane shutter, a first main plate having an opening, a second main plate having an opening and a through hole extending in an arc shape, and the first main plate and the second main plate are arranged. The blade, the arm connected to the blade, the drive pin connected to the arm and inserted into the through hole, and the width of the through hole connected to the drive pin. A cover member having a large diameter is provided. [Selection diagram] Fig. 2