KR970060103A - 브이시에스이엘 또는 브이시에스이엘 어레이를 갖춘 시디 롬 헤드 - Google Patents

브이시에스이엘 또는 브이시에스이엘 어레이를 갖춘 시디 롬 헤드 Download PDF

Info

Publication number
KR970060103A
KR970060103A KR1019970000703A KR19970000703A KR970060103A KR 970060103 A KR970060103 A KR 970060103A KR 1019970000703 A KR1019970000703 A KR 1019970000703A KR 19970000703 A KR19970000703 A KR 19970000703A KR 970060103 A KR970060103 A KR 970060103A
Authority
KR
South Korea
Prior art keywords
light beam
data storage
storage medium
pickup head
emitting laser
Prior art date
Application number
KR1019970000703A
Other languages
English (en)
Inventor
웬빈 지앙
마이클 에스. 레비
Original Assignee
빈센트 비. 인그라시아
모토로라 인코포레이티드
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 빈센트 비. 인그라시아, 모토로라 인코포레이티드 filed Critical 빈센트 비. 인그라시아
Publication of KR970060103A publication Critical patent/KR970060103A/ko

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
    • G11B7/13—Optical detectors therefor
    • G11B7/131—Arrangement of detectors in a multiple array
    • 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
    • G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs
    • 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
    • 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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/127—Lasers; Multiple laser arrays
    • 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
    • G11B7/08—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
    • G11B7/0901—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 track following only
    • G11B7/0903—Multi-beam tracking systems
    • 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)
  • Mathematical Physics (AREA)
  • Optical Head (AREA)
  • Semiconductor Lasers (AREA)

Abstract

본 발명은 데이터 기억매체로부터 정보를 판독하는 광픽업헤드에 관한 것으로, 픽업헤드는 광빔을 데이터 기억매체로 향하게 하는 집속요소를 갖춘 광빔을 방출하기 위한 VCSEL과 데이터 기억매체로부터 반사된 광을 수광하는 수광요소 및 빔을 위치결정시키는 트래킹요소를 구비한다.

Description

브이시에스이엘 또는 브이시에스이엘 어레이를 갖춘 시디 롬 헤드
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제2도는 본 발명의 사상에 따라 구성된 광픽업헤드의 실시예를 설명하는 단순화된 개략도.

Claims (4)

  1. 데이터 기억매체로부터 정보를 판독하기 위한 광픽업헤드에 있어서, 픽업헤드는 : 경로를 따라 광빔을 방출하는 수직공동 표면방출 레이저와, 광빔을 데이터 기억매체로 향하게 하는 집속수단과, 데이터 기억매체로부터 반사된 광을 수광하는 수광수단과, 광빔을 위치결정시키는 트래킹 수단을 포함하는 것을 특징으로 하는 광픽업헤드.
  2. 데이터 기억매체로부터 정보를 판독하기 위한 광픽업헤드에 있어서, 픽업헤드는 ; 경로를 따라 광빔을 방출하는 수직공동 표면방출 레이저와, 수직공동 표면방출 레이저를 유지하고 광검출기를 구비하는 반도체 기판과, 광빔을 데이터 기억매체로 향하게 하는 집속수단과, 데이터 기억매체로부터 반사된 광을 수광하는 수광수단과, 광빔을 위치결정시키는 트래킹 수단을 포함하는 것을 특징으로 하는 광픽업헤드.
  3. 데이터 기억매체로부터 정보를 판독하기 위하 광픽업헤드에 있어서, 픽업헤드는 : 경로를 따라 광빔을 방출하는 수직공동 표면방출 레이저와, 광빔을 집속하는 렌즈요소와, 광빔의 편광을 변경하는 플레이트요소와, 반사된 광빔을 수광하는 광다이오드 어레이와, 광빔을 위치결정시키는 트래킹 수단을 포함하는 것을 특징으로 하는 광픽업헤드.
  4. 제3항에 있어서, 트래킹 수단은 수직공동 표면방출 레이저에 의해 방출된 빔에 평행한 광빔을 방출하기 위해 수직공동 표면방출 레이저의 대향하는 측면에 위치된 제1트래킹 수직공동 표면방출 레이저와 제2트래킹 수직공동 표면방출 레이저를 구비하는 것을 특징으로 하는 광픽업헤드.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970000703A 1996-01-04 1997-01-03 브이시에스이엘 또는 브이시에스이엘 어레이를 갖춘 시디 롬 헤드 KR970060103A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/582,775 US5757741A (en) 1996-01-04 1996-01-04 CD ROM head with VCSEL or VCSEL array
US582,775 1996-01-04

Publications (1)

Publication Number Publication Date
KR970060103A true KR970060103A (ko) 1997-08-12

Family

ID=24330479

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970000703A KR970060103A (ko) 1996-01-04 1997-01-03 브이시에스이엘 또는 브이시에스이엘 어레이를 갖춘 시디 롬 헤드

Country Status (4)

Country Link
US (1) US5757741A (ko)
JP (1) JPH09198691A (ko)
KR (1) KR970060103A (ko)
CN (1) CN1127064C (ko)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100189910B1 (ko) * 1996-05-15 1999-06-01 윤종용 광픽업장치
KR100195137B1 (ko) * 1996-10-24 1999-06-15 윤종용 호환형 광픽업장치
US5894467A (en) * 1997-02-19 1999-04-13 Hewlett-Packard Company Multiple VSEL assembly for read/write and tracking applications in optical disks
US5936929A (en) * 1997-05-02 1999-08-10 Motorola, Inc. Optical submodule and method for making
US6111839A (en) * 1997-07-17 2000-08-29 Motorola, Inc. Optical pickup head including a coherent first order mode laser light source
DE19839305B4 (de) * 1998-08-28 2009-01-15 Siemens Ag Reflexlichtschranke
US6208609B1 (en) * 1998-11-12 2001-03-27 New Dimension Research & Instrument, Inc. Optical system with interactive data capability
US7227817B1 (en) * 1999-12-07 2007-06-05 Dphi Acquisitions, Inc. Low profile optical head
US6614825B1 (en) 1999-10-05 2003-09-02 Zhijiang Hang Monolithic VCSEL-based optical pickup and servo control device
JP2004521437A (ja) * 2001-05-03 2004-07-15 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 光走査装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5422870A (en) * 1991-09-27 1995-06-06 Matsushita Electric Industrial Co., Ltd. Optical pickup for information recording/reproducing apparatus
US5526182A (en) * 1993-02-17 1996-06-11 Vixel Corporation Multiple beam optical memory system
US5483511A (en) * 1993-02-17 1996-01-09 Vixel Corporation Multiple beam optical memory system with solid-state lasers

Also Published As

Publication number Publication date
CN1127064C (zh) 2003-11-05
CN1157454A (zh) 1997-08-20
US5757741A (en) 1998-05-26
JPH09198691A (ja) 1997-07-31

Similar Documents

Publication Publication Date Title
EP0854473A3 (en) Optical pickup and optical disk apparatus using the same
CA2088701A1 (en) Optical information reproducing apparatus
KR880002149A (ko) 광학식 헤드 장치
KR960025413A (ko) 다층 디스크용 광 픽업
KR930008764A (ko) 광학 레코딩 시스템용 홀로그래픽 장치
KR860009392A (ko) 광 메모리의 광학시스템
EP0326354A3 (en) Apparatus for reading information out of an optical recording medium
EP0838813A3 (en) Optical pickup device compatible for multiple disk formats
KR940024709A (ko) 광학식 정보기록재생장치의 레이저출력제어장치
KR970002956A (ko) 수직공진기 면발광 레이저 다이오드를 이용한 광픽엎
EP0840306A3 (en) Compatible optical pickup capable of scanning multiple tracks
KR970060103A (ko) 브이시에스이엘 또는 브이시에스이엘 어레이를 갖춘 시디 롬 헤드
KR870008286A (ko) 광학메모리로 부터의 정보 재생시스템
CA2278416A1 (en) Catadioptric optical system, optical pickup and optical disk drive employing the same, and optical disk
KR970076589A (ko) 광픽업장치의 레이저 비점격차 보상방법
ATE147185T1 (de) Kompatible optische abtastvorrichtung
KR950006733A (ko) 광자기 기록 매체용 광 픽업 장치
KR970029433A (ko) 초소형 듀얼 포커스 광 픽-업장치
KR950034124A (ko) 수직공진기 면발광 레이저 다이오드를 이용한 광픽엎
KR940020327A (ko) 광헤드
KR980004512A (ko) 호환형 광픽업장치
US5357102A (en) Tilted light detection device for preventing undesirable retro-reflection
KR950015234A (ko) 광픽업 장치
KR910006939A (ko) 광주사장치를 갖는 광학헤드
KR970060106A (ko) 병렬 판독 브이시에스이엘 시디 롬 헤드

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
NORF Unpaid initial registration fee