Patent ID: 7572075

Claim:
A shutter apparatus comprising a substrate having a shutter opening and spindles, and at least two sectors that are swingably supported by the spindles and that open and close the shutter opening, wherein one spindle, of the spindles, supporting one sector of said at least two sectors is located in a swinging range of another sector of said at least two sectors, and is a pin of a rod-shaped member formed on the substrate to be lower in an overall height than a height in which said another sector swings, wherein the swinging range includes a stopping position and a passing region, said another sector stopping to form a fully closed state or a small aperture state on the stopping position, and said another sector passing through the passing region; wherein the pin has a flange part on a head thereof to prevent any sector of said at least two sectors from falling off; an operation member moveably connected to an actuator, wherein each of said at least two sectors is provided with an opening engaged with the operation member; wherein the opening has an accelerating region and a swinging region; wherein the operation member moves in the accelerating region in a no-load state; wherein the swinging region is a continuation of the accelerating region and has a cam opening; and wherein each of the cam openings provided with said at least two sectors swing in respective trajectories as the operation member moves.