| 摘要 |
Binoculars includes left and right image stabilizing lenses, a lens holder configured to move in a direction orthogonal to an optical axis direction, a reference member as a positioning reference in an optical axis direction of the lens holder, a plurality of balls provided at least three each around each of the left and right image stabilizing lenses between the lens holder and the reference member, and configured to roll in accordance with a move of the lens holder, and left and right biasing members inside of the three balls in the left and right ball units and configured to press the lens holder and the reference member against the balls. A coupling portion in the lens holder is so flexible that at least three balls can contact the lens holder by the left and right biasing members. |
