| 摘要 |
A correction lens is supported in a generally cylindrical supporting member such that its optical axis is coaxial with the central axis of the supporting member. A flange is formed on an outer surface of the supporting member. A first opening is formed in a first rotating board, and a second opening is formed in a second rotating board. First and second cylindrical portions at both end sides of the supporting member respectively penetrate through the first and second openings. The flange is positioned between the first and second rotating boards. When the first rotating board is rotated, the first cylindrical portion is supported by the upper and lower sides of the first opening and is led by the second opening. When the second rotating board is rotated, the second cylindrical portion is supported by left and right sides of the second opening and is led by the first opening.
|
