Patent ID: 8746995

Claim:
A camera comprising: an image sensor that captures a subject image; a first shutter blade set and a second shutter blade set that open/close to assume an open state in which the subject image is guided to the image sensor or a closed state in which the image sensor is shielded; a first charge member that charges a first drive force used to drive the first shutter blade set; a second charge member that charges a second drive force used to drive the second shutter blade set; a first cam having formed therein a first drive force charge cam face that comes in contact with the first charge member to displace the first charge member along a charging direction so as to charge the first drive force; a second cam having formed therein a second drive force charge cam face that comes in contact with the second charge member to displace the second charge member along the charging direction so as to charge the second drive force; and a third cam having formed therein a cam face so as to drive a mirror between a down position assumed within a photographic optical path in order to guide the subject image to a viewfinder and an up position assumed out of the photographic optical path to guide the subject image to the image sensor, wherein the first cam, the second cam, and the third cam are fixed upon a rotating shaft that causes the first cam, the second cam, and the third cam to rotate as one, the first cam is rotated to assume a rotational phase at which drive of the first shutter blade set with the first drive force is not hindered and the second drive force charge cam face in contact with the second charge member charges the second drive force as the rotating shaft is caused to rotate to a first rotational phase; the second drive force charge cam in contact with the second charge member sustains a second drive force charging state during a transition period in which the rotating shaft in the first rotational phase rotates to a second rotational phase; and the first drive force charge cam face in contact with the first charge member charges the first drive force and the second drive force charge cam face in contact with the second charge member charges the second drive force as the rotating shaft is caused to rotate from the first rotational phase to the second rotational phase.