| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To overcome a problem of an imaging apparatus including: a barrier device driven in accordance with forward/backward movement of a barrel; and barrel resetting means utilizing movement along an optical axis direction, in which it is apprehended that accuracy in controlling the barrel may be degraded because reset timing and an opening/closing operation of the barrier device overlap each other and the barrel is reset while load is largely varied. <P>SOLUTION: A moving cam ring (10) and a rectilinear member (11) are engaged with each other so that the rectilinear member (11) may move along an optical axis direction away from the moving cam ring (10) as the moving cam ring (10) moves along the optical axis direction in accordance with transition of a barrel from a storage state to an imaging state. During the transition of the barrel from the storage state to the imaging state, engagement between the rectilinear member (11) and a barrier driving member (18) is released, and position detecting means (17) is provided so as to detect the movement of the rectilinear member (11) after a barrier blade is opened with the engagement released. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
