发明名称 LENS APPARATUS AND IMAGE-PICKUP APPARATUS
摘要 A lens apparatus which has a small size but allows a higher magnification and an image-pickup apparatus including the lens apparatus are disclosed. The lens apparatus provides a variable magnification by moving a first lens and a second lens placed closer to an image plane than the first lens in the direction of an optical axis. The lens apparatus includes a first driving member which is rotated around the optical axis to move the first lens in the optical axis direction, a second driving member which moves the second lens by itself in the optical axis direction, and a driving mechanism which at least drives the rotation of the first driving member. The second driving member is moved in the optical axis direction relative to the first driving member by the rotation of the first driving member.
申请公布号 US2007195437(A1) 申请公布日期 2007.08.23
申请号 US20070676762 申请日期 2007.02.20
申请人 YASUDA TOSHIYUKI 发明人 YASUDA TOSHIYUKI
分类号 G02B7/02 主分类号 G02B7/02
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