KR100749060B1 - 광 픽업 - Google Patents
광 픽업 Download PDFInfo
- Publication number
- KR100749060B1 KR100749060B1 KR1020060086436A KR20060086436A KR100749060B1 KR 100749060 B1 KR100749060 B1 KR 100749060B1 KR 1020060086436 A KR1020060086436 A KR 1020060086436A KR 20060086436 A KR20060086436 A KR 20060086436A KR 100749060 B1 KR100749060 B1 KR 100749060B1
- Authority
- KR
- South Korea
- Prior art keywords
- light
- optical
- lens
- recording
- photo detector
- Prior art date
Links
Images
Classifications
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- 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
- G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking
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- 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
- G11B7/0935—Details of the moving parts
-
- 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
- G11B7/13—Optical detectors therefor
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- 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
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- 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
- G11B7/1378—Separate aberration correction lenses; Cylindrical lenses to generate astigmatism; Beam expanders
-
- 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
- G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
- G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
Abstract
Description
Claims (3)
- 적어도 하나의 광 경로와;상기 적어도 하나의 광 경로 상에 마련되어 평행 광을 형성하는 적어도 하나의 시준 렌즈와;상기 적어도 하나의 광 경로를 통해 입사되는 빛을 수광하는 광 검출기와;상기 광 검출기의 표면에 포커스 에러에 대응되는 비점수차를 발생시키는 센서 렌즈와;상기 적어도 하나의 시준 렌즈와 상기 센서 렌즈를 모두 구동하는 단일의 액추에이터 구동부를 포함하는 광 픽업.
- 제 1 항에 있어서,상기 광 검출기가 단일의 광 검출기인 광 픽업.
- 제 1 항에 있어서, 상기 적어도 하나의 광 경로는,제 1 광 디스크의 기록 및 재생을 위한 제 1 광 경로와;제 2 광 디스크의 기록 및 재생을 위한 제 2 광 경로를 포함하고;상기 제 1 광 디스크와 상기 제 2 광 디스크는 서로 다른 파장의 광에 의해 데이터의 기록과 재생이 이루어지는 서로 다른 종류의 기록 매체인 광 픽업.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060086436A KR100749060B1 (ko) | 2006-09-07 | 2006-09-07 | 광 픽업 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060086436A KR100749060B1 (ko) | 2006-09-07 | 2006-09-07 | 광 픽업 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR100749060B1 true KR100749060B1 (ko) | 2007-08-13 |
Family
ID=38602795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020060086436A KR100749060B1 (ko) | 2006-09-07 | 2006-09-07 | 광 픽업 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100749060B1 (ko) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10269610A (ja) | 1997-03-27 | 1998-10-09 | Konica Corp | 光ピックアップ装置および光ピックアップ装置の補正素子 |
-
2006
- 2006-09-07 KR KR1020060086436A patent/KR100749060B1/ko not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10269610A (ja) | 1997-03-27 | 1998-10-09 | Konica Corp | 光ピックアップ装置および光ピックアップ装置の補正素子 |
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