发明名称 OPTICAL PICKUP DEVICE
摘要 An optical pickup device, an optical drive using the same, and a method of forming a beam spot are provided. The optical pickup includes a light source system that includes a light source corresponding to at least one of a digital versatile disc (DVD) and a Blu-ray disc (BD). The light source forms a beam spot having an oval shape with a long axis and a short axis on an information recording track of the disc, and the light source is disposed such that the long axis is maintained at an angle ranging from 0° to 30° with respect to a radial direction passing through a rotation center of the disc.
申请公布号 US2012082021(A1) 申请公布日期 2012.04.05
申请号 US201113179603 申请日期 2011.07.11
申请人 KIM UI-YOL;LEE YONG-JAE 发明人 KIM UI-YOL;LEE YONG-JAE
分类号 G11B7/135 主分类号 G11B7/135
代理机构 代理人
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