| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens barrel capable of reducing stress which is generated on a lens holding frame when adjusting optical axis misalignment and/or inclination with a fewer adjustment members.SOLUTION: The lens barrel includes: a lens holding frame that holds an optical member; a fixing member; a first adjustment member that supports the lens holding frame so as to adjust the position thereof; and a second adjustment member that supports the lens holding frame so as to adjust the position thereof. The first adjustment member has a spherical part and is arranged to allow the lens holding frame to move in a straight advance direction on an adjustment shaft by rotating the first adjustment member on an adjustment shaft which extends perpendicular to the optical axis via the center of the spherical part. The second adjustment member is arranged to allow the lens holding frame to rotate on a barrel rotation axis which extends parallel to the optical axis via the center of the spherical part.SELECTED DRAWING: Figure 4 |
