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发明名称
光拾取器及光碟装置
摘要
〔课题〕提供一在达到补正像差且小型化以及降低成本上较有利的光拾取器及光碟装置。〔解决手段〕平行光管透镜18是以来自光源的距离d1与平行光管透镜18的焦点距离一致的方式被配设。换句话就是,必须在光源与平行光管透镜18之间,确保平行光管透镜18的焦点距离。该距离d1即积体光学元件12与平行光管透镜18之间的距离d1,比像差补正元件14之厚度方向尺寸d0还大。在本实施例中,着眼于该距离d1,将像差补正元件14配设在结合积体光学元件12与平行光管透镜18的光路中。
申请公布号
TW200641865
申请公布日期
2006.12.01
申请号
TW095107262
申请日期
2006.03.03
申请人
新力股份有限公司
发明人
滨透;安藤伸彦
分类号
G11B7/135(2006.01)
主分类号
G11B7/135(2006.01)
代理机构
代理人
林志刚
主权项
地址
日本
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