| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical device which allows an operation state of an operation member to be quickly detected without adding a high-speed timer in a lens barrel. <P>SOLUTION: An optical device includes an MF ring 204 freely rotatable relative to a lens barrel, a rotation determination part 43a for detecting the rotation operation of the MF ring 204, and a code position detection part 43b for detecting an absolute position in a rotation direction of the MF ring 204 and switches between a timing signal of a detection timer 41a for use in the rotation determination part 43a and a timing signal of a detection timer part 31c for use in the code position detection part 43b, to use them. <P>COPYRIGHT: (C)2013,JPO&INPIT |
