发明名称 Optical apparatus
摘要 An optical apparatus is disclosed which can suppress an increase in size thereof even if its lens is driven in a large movable range. The apparatus comprises a first linear actuator which includes a first member to which an electrical signal is input and a second member whose length in an optical axis direction is longer than the first member, and drives a first lens in a first movable range in the optical axis direction. The apparatus comprises a second linear actuator which includes a third member to which an electrical signal is input and a fourth member whose length in the optical axis direction is longer than the third member, and drives a second lens in a second movable range in the optical axis direction. The first member is moved together with the first lens in the optical axis direction, with respect to the second member.
申请公布号 US7215488(B2) 申请公布日期 2007.05.08
申请号 US20060403321 申请日期 2006.04.12
申请人 CANON KABUSHIKI KAISHA 发明人 NAKASHIMA SHIGEO;KATO YUICHIRO;SATO TAKEHIKO
分类号 G02B15/14 主分类号 G02B15/14
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