KR970060106A - 병렬 판독 브이시에스이엘 시디 롬 헤드 - Google Patents

병렬 판독 브이시에스이엘 시디 롬 헤드 Download PDF

Info

Publication number
KR970060106A
KR970060106A KR1019970000702A KR19970000702A KR970060106A KR 970060106 A KR970060106 A KR 970060106A KR 1019970000702 A KR1019970000702 A KR 1019970000702A KR 19970000702 A KR19970000702 A KR 19970000702A KR 970060106 A KR970060106 A KR 970060106A
Authority
KR
South Korea
Prior art keywords
light beams
pickup head
data storage
storage medium
optical pickup
Prior art date
Application number
KR1019970000702A
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 KR970060106A publication Critical patent/KR970060106A/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
    • G11B7/123—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
    • G11B7/08—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
    • G11B7/12—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
    • G11B7/13—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
    • G11B7/12—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
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/32—Holograms used as optical elements

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Semiconductor Lasers (AREA)

Abstract

본 발명은 데이터 기억매체로부터 정보를 판독하는 광픽업헤드패키지에 관한 것이다. 픽업헤드패키지는 데이터기억매체에 광빔을 향하게 하는 홀로그램광학소를 통해 광빔을 방출시키는 VCSEL 어레이와, 데이터기억매제로부터 방사된 광을 수광하는 복수의 광검출기와 빔을 위치결정시키는 트래킹 기구를 구비한다.

Description

병렬 판독 브이시에스이엘 시디 롬 헤드
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 사상에 따라 구성된 병렬 데이터 판독 광픽업헤드패키지의 등각도.

Claims (3)

  1. 데이터 기억매체로부터 정보를 판독하기 위한 광픽업헤드 조립체에 있어서,픽업헤드조립체는:복수의 경로를 따라 광빔을 방출하는 복수의 브이시에스이엘(VCSEL)과, 복수의 광빔을 데이터 기억매체로 향하게 하는 집속수단과, 데이터 기억매체로부터 반사된 복수의 광빔을 수광하는 수광수단과, 복수의 광빔을 위치결정 시키는 트래킹수단을 포함하는 것을 특징으로 하는 광픽업헤드 조립체.
  2. 데이터 기억매체로부터 정보를 판독하기 위한 광픽업헤드 패키지에 있어서, 픽업헤드 패키지는 : 성형 패키지와, 성형 패키지에 의해 유지된 광픽업헤드 조립체를 포함하고, 광픽업 조립체는: 반도체기판과, 복수의경로에 따라 광빔을 방출하기 위해 기판에 의해 유지된 복수의 VCSEL과, 복수의 광빔을 데이터 기억매체로 향하게 하는 집속수단과, 기판에 의해 유지된 복수의 광검출기와, 복수의 광빔을 위치결정시키기 위해 광검출기와 결합된 트래킹수단을 포함하는 것을 특징으로 하는 광픽업헤드 패키지.
  3. 데이터 기억매체로부터 정보를 판독하기 위한 광픽업헤드 조립체에 있어서, 픽업헤드 조립체는 : 반도체기판과, 복수의 경로를 따라 광빔을 방출하기 위해 기판에 의해 유지된 VCSEL 어레이와, 복수의 광빔을 데이터 기억매체에 향하게 하기 위해 복수의 경로에 위치된 복수의 홀로그래픽 광학소자와, 기판에 형성된 복수의광검출기와, 복수의 광빔을 위치결정시키기 위해 광검출기로부터의 신호를 수신할수 있도록 접속된 트래킹수단을 포함하는 것을 특징으로 하는 광픽업헤드 조립체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970000702A 1996-01-04 1997-01-03 병렬 판독 브이시에스이엘 시디 롬 헤드 KR970060106A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US58264096A 1996-01-04 1996-01-04
US582,640 1996-01-04

Publications (1)

Publication Number Publication Date
KR970060106A true KR970060106A (ko) 1997-08-12

Family

ID=24329913

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970000702A KR970060106A (ko) 1996-01-04 1997-01-03 병렬 판독 브이시에스이엘 시디 롬 헤드

Country Status (3)

Country Link
JP (1) JPH09198692A (ko)
KR (1) KR970060106A (ko)
NL (1) NL1004928A1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6314223B1 (en) * 1998-08-31 2001-11-06 Digital Optics Corporation Diffractive vertical cavity surface emitting laser power monitor and system

Also Published As

Publication number Publication date
JPH09198692A (ja) 1997-07-31
NL1004928A1 (nl) 1997-07-07

Similar Documents

Publication Publication Date Title
US5331622A (en) Compact optical head
US5696749A (en) Dual-wavelength optical recording head utilizing grating beam splitter and integrated laser and detectors
US5511059A (en) Multi-element grating beam splitter with a reflection grating element for use in front facet substraction
US5544143A (en) Read/write laser-detector-grating unit (LDGU) with an orthogonally-arranged focus and tracking sensor system
US7307938B2 (en) Optical pickup apparatus having an improved holographic unit, and optical disk drive including the same
KR970060089A (ko) 표면광 레이저의 광출력 제어장치 및 이를 채용한 광픽업장치
KR100242111B1 (ko) 이파장 광원모듈과 그를 이용한 이종 광디스크용 광픽업 장치
US5787058A (en) Optical pickup apparatus utilizing a polygonal prism
EP0326354A3 (en) Apparatus for reading information out of an optical recording medium
KR940024709A (ko) 광학식 정보기록재생장치의 레이저출력제어장치
US6560188B1 (en) Compound optical unit mounted on optical device
JPH11149652A (ja) 光学ピックアップ
KR970060103A (ko) 브이시에스이엘 또는 브이시에스이엘 어레이를 갖춘 시디 롬 헤드
KR970060106A (ko) 병렬 판독 브이시에스이엘 시디 롬 헤드
US5856961A (en) Laser detector grating unit (LDGU) for producing focus error, a push-pull tracking error, and differential phase tracking error signals
EP1592000A2 (en) Laser/detector device for optical recording with adjustable detector position
US5617398A (en) In-line optical pickup using Wollaston Prism and collimating lens directing polarized light components to detectors
KR940006094A (ko) 광정보 처리 장치
JP2001298236A (ja) マルチビーム集積光学ユニット
US6212154B1 (en) Optical pickup for optical disk and light source for optical pickup
US6985421B2 (en) Optical device having a light emission unit emitting a light beam reflected by a light reflection unit to a substrate, and optical information recording apparatus using the same
KR860008531A (ko) 광학식 헤드의 트랙킹 오차 검출장치
KR100218459B1 (ko) 광 픽업장치
KR970003747B1 (ko) 광픽업장치의 레이저 다이오드
KR19990084524A (ko) 삼파장 레이저 다이오드 모듈 및 그를 이용한 광픽업 장치

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination