Invention Grant
US08416670B2 Method of accessing optical recording media, optical pickup device, and optical drive using the device
失效
访问光学记录介质,光学拾取装置和使用该装置的光驱的方法
- Patent Title: Method of accessing optical recording media, optical pickup device, and optical drive using the device
- Patent Title (中): 访问光学记录介质,光学拾取装置和使用该装置的光驱的方法
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Application No.: US12891072Application Date: 2010-09-27
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Publication No.: US08416670B2Publication Date: 2013-04-09
- Inventor: Ui-yol Kim , Yong-jae Lee , Pyong-yong Seong
- Applicant: Ui-yol Kim , Yong-jae Lee , Pyong-yong Seong
- 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: KR10-2009-0093217 20090930
- Main IPC: G11B7/135
- IPC: G11B7/135

Abstract:
An optical pickup device corresponding to an optical recording medium having a plurality of recording layers, and an optical drive using the device are provided. The optical pickup device includes a collimator lens disposed between an object lens and a light source. The collimator lens adjusts a focal length with respect to the optical recording medium, and the object lens focuses light passing through the collimator lens, on the optical recording medium. The object lens is optically optimized for an upper or second-upper recording layer of the optical recording medium.
Public/Granted literature
- US20110075535A1 METHOD OF ACCESSING OPTICAL RECORDING MEDIA, OPTICAL PICKUP DEVICE, AND OPTICAL DRIVE USING THE DEVICE Public/Granted day:2011-03-31
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