JP2008158260A5 - - Google Patents

Claims (7)

A first frame;
A first frame having first and second opposed surface portions that are movable relative to the first frame in a direction perpendicular to the optical axis for core adjustment and that faces the outer peripheral surface of the first frame. 2 frames,
A biasing member provided between the first and second frames and biasing the first frame toward the first and second opposing surface portions of the second frame;
A pair of roller members sandwiched between the outer peripheral surface of the first frame and each of the first and second opposing surface portions of the second frame , the central axis being disposed in parallel with the optical axis ;
A lens barrel characterized by comprising: The lens barrel according to claim 1, wherein the first and second opposing surface portions of the second frame are provided at positions substantially orthogonal to each other. 3. The lens according to claim 1, wherein first and second opposing surface portions of the second frame are formed integrally with the second frame, and the pair of roller members are held by the second frame. A lens barrel. The biasing member includes a countersunk screw, and a circumferential flange provided on an outer peripheral surface of the first frame is pressed by a tapered surface of the countersunk screw, and the first frame is respectively applied to the pair of roller members. The lens barrel according to claim 1, which is brought into contact with the lens barrel. The lens barrel according to claim 1, wherein the roller member is insertable / removable from the outside of the lens barrel. Moves in the direction perpendicular to the relative optical axis, the first, eccentric adjustment method of the second frame of the lens barrel to be coupled along the optical axis direction,
A first frame is urged by a biasing member to a pair of roller members having a selected outer diameter dimension and a central axis arranged parallel to the optical axis, and the pair of roller members and biasing members A decentering adjustment method for a lens barrel, wherein the first frame is held at a point and the decentering of the first frame with respect to the second frame is adjusted. The pair of roller members and the urging member are provided on the second frame so as to face the flange of the first frame, and the urging member is a countersunk screw screwed to the end surface of the second frame. The lens barrel eccentricity adjusting method according to claim 6, wherein the taper surface of the screw presses the flange of the first frame to move the first frame in a direction orthogonal to the optical axis.