KR970029432A - 초소형 광 픽-업장치 - Google Patents
초소형 광 픽-업장치 Download PDFInfo
- Publication number
- KR970029432A KR970029432A KR1019950043818A KR19950043818A KR970029432A KR 970029432 A KR970029432 A KR 970029432A KR 1019950043818 A KR1019950043818 A KR 1019950043818A KR 19950043818 A KR19950043818 A KR 19950043818A KR 970029432 A KR970029432 A KR 970029432A
- Authority
- KR
- South Korea
- Prior art keywords
- silicon substrate
- predetermined
- laser beam
- laser diode
- optical
- 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.)
- Granted
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
- G11B7/1353—Diffractive elements, e.g. holograms or gratings
-
- 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
- G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
Abstract
Description
Claims (1)
- 다수의 광학소자가 집적 형성되는 실리콘기판(1), 상기 실리콘기판(1)의 일측 중앙부에 형성되어 소정의 발진파장으로 레이저 빔을 방출하는 레이저 다이오드(2), 상기 레이저 다이오드(2)의 양측에 소정간격을 두고 집적 형성되어 디스크로부터 돌아오는 광정보를 검출하는 제1 및 제2광출기(3a)(3b), 상기 실리콘기판(1) 상부의 소정부분에 형성되어 상기 레이저 다이오드(2)로부터 방사되는 레이저 빔을 평행광으로 유지하여 반사하는 프레즈넬 렌즈(4), 상기 실리콘기판(1) 상부 일측에 형성되어 레이저 빔을 집광하여 디스크상에 포커스를 형성하는 대물렌즈(5), 상기 실리콘기판(1) 중앙부의 소정위치에 형성되어 프레즈넬 렌즈(4)에 의해 반사된 레이저 빔을 소정 비율로 투과 및 반사시켜 상기 대물렌즈(5)로 조사하는 빔 스플리트(6), 상기 실리콘기판(1) 하부의 소정 위치에 형성되어 디스크의 광정보를 상기 제1 및 제2광검출기(3a)(3b)로 조사하는 트윈 포커싱 빔 스프리트(7)로 구성된 것을 특징으로 하는 초소형 광 픽-업장치.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950043818A KR0166232B1 (ko) | 1995-11-27 | 1995-11-27 | 초소형 광 픽-업장치 |
US08/753,522 US5768244A (en) | 1995-11-27 | 1996-11-26 | Optical pickup system having an integrated twin focusing beam splitter |
EP96118926A EP0776001A3 (en) | 1995-11-27 | 1996-11-26 | Integrated optical pickup system |
JP8316050A JPH09171633A (ja) | 1995-11-27 | 1996-11-27 | 集積光ピックアップシステム |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950043818A KR0166232B1 (ko) | 1995-11-27 | 1995-11-27 | 초소형 광 픽-업장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970029432A true KR970029432A (ko) | 1997-06-26 |
KR0166232B1 KR0166232B1 (ko) | 1999-03-20 |
Family
ID=19435767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950043818A Expired - Fee Related KR0166232B1 (ko) | 1995-11-27 | 1995-11-27 | 초소형 광 픽-업장치 |
Country Status (4)
Country | Link |
---|---|
US (1) | US5768244A (ko) |
EP (1) | EP0776001A3 (ko) |
JP (1) | JPH09171633A (ko) |
KR (1) | KR0166232B1 (ko) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4505982B2 (ja) * | 2000-11-30 | 2010-07-21 | 三菱電機株式会社 | 光ヘッド装置、記録及び/又は再生装置並びに記録及び/又は再生方法 |
JP2003233925A (ja) * | 2002-02-06 | 2003-08-22 | Pioneer Electronic Corp | 光集積デバイスおよび波長変動キャンセル方法 |
US20140212085A1 (en) * | 2013-01-29 | 2014-07-31 | Georgios Margaritis | Optocoupler |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3583039D1 (de) * | 1985-12-17 | 1991-07-04 | Ibm Deutschland | Schreib/lesekopf fuer optische platten. |
US4868803A (en) * | 1987-04-20 | 1989-09-19 | Fuji Photo Film Co., Ltd. | Magneto-optic pickup head including tracking and focusing error correction |
EP0306342B1 (en) * | 1987-09-04 | 1994-02-02 | Sharp Kabushiki Kaisha | Optical information processing apparatus |
US5105403A (en) * | 1988-01-27 | 1992-04-14 | Hitachi, Ltd. | Optical information reading apparatus with waveguide and diffraction grating |
JP2644829B2 (ja) * | 1988-06-24 | 1997-08-25 | 株式会社リコー | 光情報記録再生装置 |
US5070488A (en) * | 1988-06-29 | 1991-12-03 | Atsuko Fukushima | Optical integrated circuit and optical apparatus |
JPH0235634A (ja) * | 1988-07-26 | 1990-02-06 | Matsushita Electric Ind Co Ltd | 光情報処理装置 |
WO1990001768A1 (en) * | 1988-08-05 | 1990-02-22 | Matsushita Electric Industrial Co., Ltd. | Optical head |
US5195070A (en) * | 1989-07-12 | 1993-03-16 | Hitachi, Ltd. | Optical information processing apparatus and optical pickup therefor |
JPH04219657A (ja) * | 1990-04-13 | 1992-08-10 | Ricoh Co Ltd | 光磁気情報記録再生装置及びモードスプリッタ |
US5317551A (en) * | 1990-07-16 | 1994-05-31 | Matsushita Electric Industrial Co., Ltd. | Optical disk head including a light path having a thickness and width greater than the light beam wavelength by a predetermined amount |
JPH0572497A (ja) * | 1991-09-11 | 1993-03-26 | Sharp Corp | 一体型光素子および基板型光素子 |
US5446719A (en) * | 1992-02-05 | 1995-08-29 | Sharp Kabushiki Kaisha | Optical information reproducing apparatus |
US5410468A (en) * | 1992-06-26 | 1995-04-25 | Matsushita Electric Industrial Co., Ltd. | Optical pick-up apparatus |
JP2960819B2 (ja) * | 1992-07-29 | 1999-10-12 | シャープ株式会社 | 光ピックアップ装置 |
DE4404635C2 (de) * | 1993-02-17 | 1998-06-18 | Hitachi Ltd | Schwimmender optischer Abtastkopf, der integral mit einer Lichtquelle und einem Photodetektor ausgebildet ist, und optisches Plattengerät mit einem solchen |
JP2842132B2 (ja) * | 1993-03-05 | 1998-12-24 | 松下電器産業株式会社 | 光学デバイス |
JPH07287883A (ja) * | 1994-04-19 | 1995-10-31 | Victor Co Of Japan Ltd | 光集積回路 |
FR2719387B1 (fr) * | 1994-04-28 | 1996-05-24 | Commissariat Energie Atomique | Dispositif de contrôle de la position et/ou de la focalisation d'un faisceau lumineux focalisé. |
-
1995
- 1995-11-27 KR KR1019950043818A patent/KR0166232B1/ko not_active Expired - Fee Related
-
1996
- 1996-11-26 US US08/753,522 patent/US5768244A/en not_active Expired - Fee Related
- 1996-11-26 EP EP96118926A patent/EP0776001A3/en not_active Withdrawn
- 1996-11-27 JP JP8316050A patent/JPH09171633A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
KR0166232B1 (ko) | 1999-03-20 |
JPH09171633A (ja) | 1997-06-30 |
EP0776001A3 (en) | 1998-08-26 |
US5768244A (en) | 1998-06-16 |
EP0776001A2 (en) | 1997-05-28 |
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