KR880010388A - 광학 헤드 - Google Patents
광학 헤드 Download PDFInfo
- Publication number
- KR880010388A KR880010388A KR1019880001062A KR880001062A KR880010388A KR 880010388 A KR880010388 A KR 880010388A KR 1019880001062 A KR1019880001062 A KR 1019880001062A KR 880001062 A KR880001062 A KR 880001062A KR 880010388 A KR880010388 A KR 880010388A
- Authority
- KR
- South Korea
- Prior art keywords
- optical head
- refraction
- index
- light
- light source
- Prior art date
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
- G11B7/12—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
- G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
-
- 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
- G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
-
- 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
- G11B7/094—Methods and circuits for servo offset compensation
-
- 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
- G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
-
- 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
- G11B7/0908—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 for focusing only
- G11B7/0912—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 for focusing only by push-pull method
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
Abstract
내용 없음
Description
제1도는 본 발명의 일실시예의 광학 헤드의 개략 단면도,
제2도는 상기 실시예에서 각종 빛의 입사각을 각각 설명하기 위한 설명도,
제3도는 광학 헤드의 종래예의 개략 단면도.
내용 없음
Claims (1)
- 광 검출부가 형성된 기관과, 레이저 광원과, 상기 기판의 상기 광 검출부상에 접착제로 접착 고정되며 상기 레이저 광원으로부터의 방사광을 반사함과 더불어 매체로부터의 반사광을 투과하는 반투과 반사막을 가지는 강학부품을 구비하며, 상기 광학부품의 굴절율 n1을 상기 접착제의 굴절율 n2보다 크게(n1,n2)한 것을 특징으로하는 광학 헤드.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62025936A JP2508478B2 (ja) | 1987-02-06 | 1987-02-06 | 光学ヘツド |
JP25936 | 1987-02-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR880010388A true KR880010388A (ko) | 1988-10-08 |
KR960007232B1 KR960007232B1 (ko) | 1996-05-29 |
Family
ID=12179658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019880001062A KR960007232B1 (ko) | 1987-02-06 | 1988-02-05 | 광학 픽업 헤드 |
Country Status (5)
Country | Link |
---|---|
US (1) | US4873429A (ko) |
EP (1) | EP0278406B1 (ko) |
JP (1) | JP2508478B2 (ko) |
KR (1) | KR960007232B1 (ko) |
DE (1) | DE3880702T2 (ko) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6657931B1 (en) | 1959-02-02 | 2003-12-02 | Sony Corporation | Optical disc drive for performing read/write operations on optical disks |
EP0283002B1 (en) * | 1987-03-17 | 1994-02-16 | Matsushita Electric Industrial Co., Ltd. | Optical head |
US5016992A (en) * | 1989-03-16 | 1991-05-21 | Forschungszentrum Julich Gmbh | Method of and apparatus for the reading of magnetically stored information |
US5966230A (en) * | 1990-05-29 | 1999-10-12 | Symbol Technologies, Inc. | Integrated scanner on a common substrate |
JP2565447Y2 (ja) * | 1991-02-16 | 1998-03-18 | 日本特殊陶業株式会社 | エンジン用圧力センサー |
US5357122A (en) * | 1991-09-05 | 1994-10-18 | Sony Corporation | Three-dimensional optical-electronic integrated circuit device with raised sections |
US5191204A (en) * | 1991-10-28 | 1993-03-02 | International Business Machines Corporation | Multi-beam optical system and method with power detection of overlapping beams |
US5350917A (en) * | 1991-12-27 | 1994-09-27 | Sony Corporation | Opto-magnetic recording polarization optical apparatus including a laser diode and a light absorbing film |
US5319182A (en) * | 1992-03-04 | 1994-06-07 | Welch Allyn, Inc. | Integrated solid state light emitting and detecting array and apparatus employing said array |
US5410468A (en) * | 1992-06-26 | 1995-04-25 | Matsushita Electric Industrial Co., Ltd. | Optical pick-up apparatus |
DE69318770T2 (de) * | 1992-07-30 | 1998-10-15 | Matsushita Electric Ind Co Ltd | Optisches Wiedergabegerät |
US5852287A (en) * | 1993-08-17 | 1998-12-22 | Sony Corporation | Semiconductor optical device for code reader |
US5883913A (en) * | 1993-12-27 | 1999-03-16 | Sony Corporation | Optical device |
US5874722A (en) | 1994-07-19 | 1999-02-23 | Spectra-Physics Scanning Systems, Inc. | Compact scanner module mountable to pointing instrument |
JP3438365B2 (ja) * | 1994-11-29 | 2003-08-18 | ソニー株式会社 | 複合光学装置およびその製造方法 |
US5796701A (en) * | 1995-06-23 | 1998-08-18 | Sony Corporation | Optical pickup and opto-magnetic signal reproducing apparatus |
KR0174473B1 (ko) * | 1996-04-26 | 1999-04-15 | 배순훈 | 광 픽-업 장치 |
JPH09320098A (ja) * | 1996-05-27 | 1997-12-12 | Sony Corp | 光ピックアップ装置および複合光学装置 |
TW365057B (en) * | 1997-12-31 | 1999-07-21 | Ind Tech Res Inst | Manufacturing method for micro-mirror on the silicon substrate |
DE102017101655B4 (de) | 2017-01-27 | 2024-01-25 | Bcs Automotive Interface Solutions Gmbh | Elektrooptikbaugruppe sowie Verfahren zur Detektion von Umgebungslicht |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1258906A (en) * | 1985-04-22 | 1989-08-29 | Hiroshi Oinoue | Semiconductor laser apparatus for optical head |
EP0210582B1 (en) * | 1985-07-29 | 1991-02-27 | Mitsubishi Denki Kabushiki Kaisha | Optical head apparatus |
JPH0719394B2 (ja) * | 1986-04-23 | 1995-03-06 | ソニー株式会社 | 半導体レ−ザ装置 |
-
1987
- 1987-02-06 JP JP62025936A patent/JP2508478B2/ja not_active Expired - Lifetime
-
1988
- 1988-02-03 US US07/152,007 patent/US4873429A/en not_active Expired - Lifetime
- 1988-02-04 DE DE88101627T patent/DE3880702T2/de not_active Expired - Fee Related
- 1988-02-04 EP EP88101627A patent/EP0278406B1/en not_active Expired - Lifetime
- 1988-02-05 KR KR1019880001062A patent/KR960007232B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0278406A2 (en) | 1988-08-17 |
KR960007232B1 (ko) | 1996-05-29 |
DE3880702T2 (de) | 1993-11-04 |
DE3880702D1 (de) | 1993-06-09 |
US4873429A (en) | 1989-10-10 |
JP2508478B2 (ja) | 1996-06-19 |
EP0278406B1 (en) | 1993-05-05 |
EP0278406A3 (en) | 1990-09-12 |
JPS63193337A (ja) | 1988-08-10 |
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FPAY | Annual fee payment |
Payment date: 20090429 Year of fee payment: 14 |
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