| 摘要 |
<P>PROBLEM TO BE SOLVED: To eliminate a fear that a range of image light incident upon an imaging element becomes small, namely the generation of vignetting. <P>SOLUTION: A mirror unit includes: a first mirror having a platy mirror body, and rotating between a reflection position for reflecting incident light from a subject and a retracting position retracted from an optical path of the incident light; and a second mirror journaled on a back surface side of the mirror body, reflecting the incident light when the first mirror is at a reflection position, and rotating with the rotations of the first mirror to retract from the optical path of the incident light when the first mirror is at the retracting position. On the back surface of the mirror body of the first mirror, a recessed part for storing at least a part of the second mirror when the second mirror is retracted is provided. <P>COPYRIGHT: (C)2013,JPO&INPIT |
