| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens barrel on which a switch is simply and surely operated even while a photographer views a finder, and shootings and switching operations are performed always in a same usability. SOLUTION: A manual focusing ring 4 is movable to a normal position, a first position, and between the first position and a second position which is in the direction opposite to the first position beyond the normal position along the optical axis direction of a focusing lens 13. The lens barrel is provided with: wave washers 7a and 7b which biases the manual focusing ring 4 to return to the normal position; a first switch part 8a of which the state is switched by positioning the manual focusing ring 4 at the first position; and a second switch part 8b of which the state is switched by positioning the manual focusing ring 4 at the second position. When an input is given to the first switch part 8a or the second switch part 8b, the focusing lens 13 is not driven and a focusing lock is realized. COPYRIGHT: (C)2005,JPO&NCIPI |
