发明名称 |
Lens drive unit, lens barrel and imaging apparatus |
摘要 |
A lens drive unit includes a movable member with lenses; and a guide portion configured to movably guide the movable member back and forth along a predetermined direction and rotatably guide the movable member about a predetermined rotational axis in a plane perpendicular to an optical axis of the lens. A distance r between the gravity center of the movable member and the rotational axis satisfies the following expression (A): r≦̸√{square root over (0.2J/M)}  (A). |
申请公布号 |
US8279543(B2) |
申请公布日期 |
2012.10.02 |
申请号 |
US20100979433 |
申请日期 |
2010.12.28 |
申请人 |
UMEDA MAKOTO;MIYAMORI KENICHI;PANASONIC CORPORATION |
发明人 |
UMEDA MAKOTO;MIYAMORI KENICHI |
分类号 |
G02B7/02;G02B15/14 |
主分类号 |
G02B7/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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