| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the focus accuracy of an shooting image by preventing the unevenness of focus detection accuracy due to rattling of a rotation shaft rotatably supporting a main mirror. <P>SOLUTION: An imaging device comprises: a main mirror pivoted on a groove of a mirror box, and entering a first state going into a shooting optical path and a second state retracting from the shooting optical path; a sub mirror pivoted by the main mirror, and entering a first state reflecting a light flux passing through the main mirror and a second state retracting from the shooting optical path; and an energizing member for energizing a rotation shaft. A clearance is formed so as to make a rattling direction of the rotation shaft to the groove parallel with a reflecting surface direction of the sub mirror when the sub mirror is in the first state. The energizing member energizes the rotation shaft from a direction orthogonal to the reflecting surface direction of the sub mirror when the sub mirror is in the first state. <P>COPYRIGHT: (C)2012,JPO&INPIT |
