Invention Grant
- Patent Title: Optical pick-up device
- Patent Title (中): 光学拾取装置
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Application No.: US11332243Application Date: 2006-01-17
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Publication No.: US07885165B2Publication Date: 2011-02-08
- Inventor: Soo-han Park , Jang-hoon Yoo , Hag-hyeon Jang , Yong-han Yoon , Soo-jin Jung
- Applicant: Soo-han Park , Jang-hoon Yoo , Hag-hyeon Jang , Yong-han Yoon , Soo-jin Jung
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: Roylance, Abrams, Berdo & Goodman, L.L.P.
- Priority: KR10-2005-0006420 20050124
- Main IPC: G11B7/12
- IPC: G11B7/12

Abstract:
An optical pickup device according to an embodiment of the present invention comprises a light source for projecting a beam of light to record and reproduce information with respect to an optical recording medium. A collimating lens is disposed on a path of the light to converge and convert the light into a parallel beam. An object lens condenses the parallel beam from the collimating lens and projects the parallel beam onto the optical recording medium. An optical element is disposed between the collimating lens and the object lens. A first actuator moves the collimating lens along the optical axis to thereby control a distance between the collimating lens and the optical element. A first controller drives the first actuator to find a position for the collimating lens, for reducing aberration generated in the light being projected to the optical recording medium. Accordingly, the aberration can be effectively prevented, thereby improving recording and reproducing performance of the optical pickup device.
Public/Granted literature
- US20060164708A1 Optical pick-up device Public/Granted day:2006-07-27
Information query
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