| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lens barrel capable of easily adjusting rotational operation torque of an operation ring after assembly by suppressing generation of noise and deterioration in operational feel in a rotational operation of the operation ring. <P>SOLUTION: The lens barrel includes: a fixed barrel; the operational ring capable of being rotationally operated to the fixed barrel; a friction member which is inserted in a hole formed on the operational ring; and an energizing means for energizing the friction member from an outer diameter direction of the operational ring. The friction member makes surface contact with the fixed barrel by being energized by the energizing means and is composed so that a frictional force generates between the frictional member and the fixed barrel when the frictional ring is rotated. <P>COPYRIGHT: (C)2013,JPO&INPIT |
