KR100400641B1 - 광픽업의 대물렌즈 구동장치 - Google Patents
광픽업의 대물렌즈 구동장치 Download PDFInfo
- Publication number
- KR100400641B1 KR100400641B1 KR10-2001-0001248A KR20010001248A KR100400641B1 KR 100400641 B1 KR100400641 B1 KR 100400641B1 KR 20010001248 A KR20010001248 A KR 20010001248A KR 100400641 B1 KR100400641 B1 KR 100400641B1
- Authority
- KR
- South Korea
- Prior art keywords
- driving
- objective lens
- displacement
- lens
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0927—Electromechanical actuators for lens positioning for focusing only
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1372—Lenses
- G11B7/1374—Objective lenses
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1372—Lenses
- G11B7/1376—Collimator lenses
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
Description
Claims (4)
- 고정부의 상부측벽면에 광원과 콜리메이터렌즈를 그 상단면에 설치하도록 형성된 고정지지부와, 상기 광원에서 주사된 광빔을 광디스크의 기록면에 주사시킬 수 있도록 구동하는 대물렌즈와, 상기 대물렌즈 하부에 구비되어 렌즈를 고정지지하는 렌즈홀더로 이루어진 광픽업의 대물렌즈 구동장치에 있어서,상기 고정지지부의 하단면에 설치되어 자석과 반응하여 변위를 일으켜 대물렌즈를 구동시키는 구동용 코일과,상기 구동용 코일과 대응되는 위치에 설치되어 상기 대물렌즈를 포커싱 방향으로 구동시킬 수 있도록 상기 구동용 코일과 반응하여 변위를 일으키는 자석을 구비하는 한편 상기 구동용코일에 반응하여 변위가 일어나는 유연성과 하드디스크헤드를 지지하는 강성을 구비하는 구동부재와,상기 구동부재의 자석이 구동용 코일과 반응하여 변위를 일으킬때 이 반응변위를 감지함과 동시에 이를 제어하는 제어수단부를 포함하여 이루어진 것을 특징으로 하는 광픽업의 대물렌즈 구동장치.
- 제 1 항에 있어서,상기 제어수단부는, 상기 구동부재의 구동에 따른 자석의 반응변위를 감지함과 동시에 이 감지신호를 인가하는 코일센서와,상기 코일센서로부터 감지된 신호를 인가받아 신호에 따라 상기 구동부재의 구동력을 제어하는 제어부를 포함하여 이루어진 것을 특징으로 하는 광픽업의 대물렌즈 구동장치.
- 삭제
- 삭제
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2001-0001248A KR100400641B1 (ko) | 2001-01-10 | 2001-01-10 | 광픽업의 대물렌즈 구동장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2001-0001248A KR100400641B1 (ko) | 2001-01-10 | 2001-01-10 | 광픽업의 대물렌즈 구동장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020060278A KR20020060278A (ko) | 2002-07-18 |
KR100400641B1 true KR100400641B1 (ko) | 2003-10-10 |
Family
ID=27691228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2001-0001248A Expired - Fee Related KR100400641B1 (ko) | 2001-01-10 | 2001-01-10 | 광픽업의 대물렌즈 구동장치 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100400641B1 (ko) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR880013133A (ko) * | 1987-04-09 | 1988-11-30 | 안시환 | 광섬유를 이용한 광 픽업장치 |
JPH06111348A (ja) * | 1992-10-01 | 1994-04-22 | Ricoh Co Ltd | フォーカスアクチュエータ |
JPH06301992A (ja) * | 1993-04-12 | 1994-10-28 | Tdk Corp | レンズ移動装置 |
JPH08124202A (ja) * | 1994-10-27 | 1996-05-17 | Nec Corp | 光ヘッド |
JPH0935297A (ja) * | 1995-07-20 | 1997-02-07 | Sony Corp | 対物レンズ駆動装置 |
JP2000222754A (ja) * | 1999-02-02 | 2000-08-11 | Matsushita Electric Ind Co Ltd | 対物レンズ駆動装置 |
-
2001
- 2001-01-10 KR KR10-2001-0001248A patent/KR100400641B1/ko not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR880013133A (ko) * | 1987-04-09 | 1988-11-30 | 안시환 | 광섬유를 이용한 광 픽업장치 |
JPH06111348A (ja) * | 1992-10-01 | 1994-04-22 | Ricoh Co Ltd | フォーカスアクチュエータ |
JPH06301992A (ja) * | 1993-04-12 | 1994-10-28 | Tdk Corp | レンズ移動装置 |
JPH08124202A (ja) * | 1994-10-27 | 1996-05-17 | Nec Corp | 光ヘッド |
JPH0935297A (ja) * | 1995-07-20 | 1997-02-07 | Sony Corp | 対物レンズ駆動装置 |
JP2000222754A (ja) * | 1999-02-02 | 2000-08-11 | Matsushita Electric Ind Co Ltd | 対物レンズ駆動装置 |
Also Published As
Publication number | Publication date |
---|---|
KR20020060278A (ko) | 2002-07-18 |
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