Invention Grant
US08520488B2 Optical pickup device that forms an oval spot on a disc having a small angle with respect to a radial axis
失效
在相对于径向轴线具有小角度的盘上形成椭圆形点的光学拾取装置
- Patent Title: Optical pickup device that forms an oval spot on a disc having a small angle with respect to a radial axis
- Patent Title (中): 在相对于径向轴线具有小角度的盘上形成椭圆形点的光学拾取装置
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Application No.: US13179603Application Date: 2011-07-11
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Publication No.: US08520488B2Publication Date: 2013-08-27
- Inventor: Ui-yol Kim , Yong-jae Lee
- Applicant: Ui-yol Kim , Yong-jae Lee
- Applicant Address: KR Suwon-si
- Assignee: Toshiba Samsung Storage Technology Korea Corporation
- Current Assignee: Toshiba Samsung Storage Technology Korea Corporation
- Current Assignee Address: KR Suwon-si
- Agency: NSIP Law
- Priority: KR10-2010-0095398 20100930
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
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.
Public/Granted literature
- US20120082021A1 OPTICAL PICKUP DEVICE Public/Granted day:2012-04-05
Information query
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