发明授权
- 专利标题： Objective lens driving apparatus having bottom plate forming a projecting part
- 专利标题（中）： 具有形成突出部的底板的物镜驱动装置
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申请号： US11109661申请日： 2005-04-20
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公开(公告)号： US07443771B2公开(公告)日： 2008-10-28
- 发明人: Seiichi Katou , Akio Yabe , Hidenao Saito
- 申请人： Seiichi Katou , Akio Yabe , Hidenao Saito
- 申请人地址： JP Mizusawa-shi
- 专利权人： Hitachi Media Electronics Co., Ltd.
- 当前专利权人： Hitachi Media Electronics Co., Ltd.
- 当前专利权人地址： JP Mizusawa-shi
- 代理机构： Antonelli, Terry, Stout & Kraus, LLP.
- 优先权： JP2004-177717 20040616
- 主分类号： G11B7/00
- IPC分类号： G11B7/00
摘要：
It is an object of this invention to increase the rigidity of a movable part and decrease its weight. An objective lens driving apparatus has an objective lens which focuses light on the recording surface of an optical disk. The objective lens is driven by focusing coils in directions approaching and receding from the optical disk and is driven by tracking coils in the radial direction of the optical disk. The objective lens is held by a lens holder. A projecting part projecting outward from the outer side surfaces of the lens holder is formed around the entire peripheral edge of the bottom surface of the lens holder.
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