KR880004446A - 광학 픽업장치 - Google Patents

광학 픽업장치 Download PDF

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Publication number
KR880004446A
KR880004446A KR870010253A KR870010253A KR880004446A KR 880004446 A KR880004446 A KR 880004446A KR 870010253 A KR870010253 A KR 870010253A KR 870010253 A KR870010253 A KR 870010253A KR 880004446 A KR880004446 A KR 880004446A
Authority
KR
South Korea
Prior art keywords
light beam
lens
passing
receives
source
Prior art date
Application number
KR870010253A
Other languages
English (en)
Inventor
아끼라 나까무라
Original Assignee
오오가 노리오
소니 가부시끼 가이샤
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 오오가 노리오, 소니 가부시끼 가이샤 filed Critical 오오가 노리오
Publication of KR880004446A publication Critical patent/KR880004446A/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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • 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

Abstract

내용 없음

Description

광학 픽업장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따르는 광학 픽업장치의 일예를 간략화하게 도시한 구성도.
제2도는 제1도에 도시되는 예의 광학 특성의 설명에 제공되는 특성도.

Claims (1)

  1. 광 빔 발생원과, 상기 광 빔 발생원으로 부터의 광 빔을 기록 매체에 집속 상태를 가지고 입사시킴과 함께 상기 기록 매체로 부터의 반사광 빔을 받는 매물렌즈와, 상기 광 빔 발생원으로 부터의 광 빔을 평행광 빔에 비해서 약간 집속하는 것으로 하여, 상기 대물렌즈에 입사시킴과 함께, 상기 대물렌즈를 거친 반사광 빔을 받는, 1매 구성으로 된 중간 렌즈와, 상기 광 빔 발생원에서 상기 중간 렌즈에 입사하는 광 빔과 상기 대물렌즈를 거친 후 상기 중간 렌즈를 통과한 반사광 빔을 분리하는 빔 스프리터와, 상기 빔 스프리터를 거친 반사광 빔을 검출하는 광 검출부를 구비하는 구성이 되는 것을 특징으로 하는 광학 픽업장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR870010253A 1986-09-18 1987-09-16 광학 픽업장치 KR880004446A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61220311A JP2633535B2 (ja) 1986-09-18 1986-09-18 光学ピツクアツプ装置
JP220311 1986-09-18

Publications (1)

Publication Number Publication Date
KR880004446A true KR880004446A (ko) 1988-06-04

Family

ID=16749152

Family Applications (2)

Application Number Title Priority Date Filing Date
KR870010253A KR880004446A (ko) 1986-09-18 1987-09-16 광학 픽업장치
KR96001898U KR0121313Y1 (en) 1986-09-18 1996-02-08 Optical pick-up device

Family Applications After (1)

Application Number Title Priority Date Filing Date
KR96001898U KR0121313Y1 (en) 1986-09-18 1996-02-08 Optical pick-up device

Country Status (6)

Country Link
US (1) US4791625A (ko)
EP (1) EP0260569B1 (ko)
JP (1) JP2633535B2 (ko)
KR (2) KR880004446A (ko)
AT (1) ATE83088T1 (ko)
DE (1) DE3782895T2 (ko)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5208801A (en) * 1988-02-05 1993-05-04 Tandy Corporation Method and apparatus for correcting focus in an optical recording system
JP2591099B2 (ja) * 1988-09-29 1997-03-19 旭硝子株式会社 レーザ共振型光ピックアップ
FR2642883B1 (ko) * 1989-02-09 1995-06-02 Asahi Optical Co Ltd
EP0390116B1 (en) * 1989-03-31 1995-06-14 Kabushiki Kaisha Toshiba Optical information processing system
JPH03154239A (ja) * 1989-11-10 1991-07-02 Pioneer Electron Corp 光ディスクカッティング装置
JP2655923B2 (ja) * 1990-01-22 1997-09-24 シャープ株式会社 光ヘッド装置
AU7691391A (en) * 1990-04-23 1991-11-11 Tandy Corporation Method and apparatus for correcting focus in an optical recording system
JPH0777031B2 (ja) * 1991-10-16 1995-08-16 インターナショナル・ビジネス・マシーンズ・コーポレイション 収差補償装置
US5625609A (en) * 1995-03-13 1997-04-29 International Business Machines Corporation Multiple data layer optical disk drive system with fixed aberration correction and optimum interlayer spacing
US6192022B1 (en) * 1997-05-23 2001-02-20 U.S. Philips Corporation Focusing a light beam more than thirty focal depths from the aplanatic point with a plano-convex lens
JP2000132859A (ja) * 1998-10-23 2000-05-12 Fujitsu Ltd 光記憶装置及び光ピックアップ

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4191462A (en) * 1978-04-24 1980-03-04 Polaroid Corporation Fixed focus exposure control apparatus with reverse spherical aberration corrective characteristic
FR2460022B1 (fr) * 1979-06-25 1987-09-11 Hitachi Ltd Systeme optique de reproduction d'informations
JPS566038U (ko) * 1979-06-25 1981-01-20
FR2470391A1 (fr) * 1979-11-21 1981-05-29 Thomson Csf Dispositif optique stigmatique d'emission-reception de rayonnements coherents et tete optique d'enregistrement-lecture comprenant un tel dispositif
JPS56145529A (en) * 1980-04-15 1981-11-12 Matsushita Electric Ind Co Ltd Signal recording and reproducing system
JPS595446A (ja) * 1982-07-02 1984-01-12 Matsushita Electric Ind Co Ltd 光学式ピツクアツプ装置
JPS5914145A (ja) * 1982-07-14 1984-01-25 Minolta Camera Co Ltd 光デイスク用光学装置
JPS59176715A (ja) * 1983-03-26 1984-10-06 Nippon Kogaku Kk <Nikon> 対物レンズ

Also Published As

Publication number Publication date
EP0260569A3 (en) 1989-05-10
JPS6374133A (ja) 1988-04-04
EP0260569B1 (en) 1992-12-02
ATE83088T1 (de) 1992-12-15
EP0260569A2 (en) 1988-03-23
DE3782895T2 (de) 1993-06-17
KR0121313Y1 (en) 1998-08-01
DE3782895D1 (de) 1993-01-14
US4791625A (en) 1988-12-13
JP2633535B2 (ja) 1997-07-23

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application
WICV Withdrawal of application forming a basis of a converted application