KR880700399A - 광학식 헤드 장치 - Google Patents

광학식 헤드 장치

Info

Publication number
KR880700399A
KR880700399A KR870700192A KR870700192A KR880700399A KR 880700399 A KR880700399 A KR 880700399A KR 870700192 A KR870700192 A KR 870700192A KR 870700192 A KR870700192 A KR 870700192A KR 880700399 A KR880700399 A KR 880700399A
Authority
KR
South Korea
Prior art keywords
optical head
head device
optical
head
Prior art date
Application number
KR870700192A
Other languages
English (en)
Other versions
KR900008608B1 (ko
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 filed Critical
Publication of KR880700399A publication Critical patent/KR880700399A/ko
Application granted granted Critical
Publication of KR900008608B1 publication Critical patent/KR900008608B1/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
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4246—Bidirectionally operating package structures
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4206—Optical features
    • 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
    • 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
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • G11B7/13925—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Head (AREA)
KR1019870700192A 1985-09-10 1986-08-14 광학식 헤드 장치 KR900008608B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP20016385 1985-09-10
JP200163 1985-09-10
PCT/JP1986/000416 WO1987001466A1 (en) 1985-09-10 1986-08-14 Optical head device

Publications (2)

Publication Number Publication Date
KR880700399A true KR880700399A (ko) 1988-03-15
KR900008608B1 KR900008608B1 (ko) 1990-11-26

Family

ID=16419835

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870700192A KR900008608B1 (ko) 1985-09-10 1986-08-14 광학식 헤드 장치

Country Status (6)

Country Link
US (1) US4797545A (ko)
EP (1) EP0236503B1 (ko)
JP (1) JPH0816738B1 (ko)
KR (1) KR900008608B1 (ko)
DE (1) DE3683634D1 (ko)
WO (1) WO1987001466A1 (ko)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02185602A (ja) * 1989-01-11 1990-07-20 Mitsubishi Heavy Ind Ltd 動翼先端すき間計測装置
KR100230529B1 (ko) * 1990-11-05 1999-11-15 가나이 쓰도무 광디스크 장치 및 광헤드
US5157555A (en) * 1991-12-04 1992-10-20 General Electric Company Apparatus for adjustable correction of spherical aberration
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
KR100239237B1 (ko) * 1995-09-12 2000-01-15 가나이 쓰도무 광디스크장치 및 그의 광헤드
JP3033693B2 (ja) * 1996-09-13 2000-04-17 日本電気株式会社 光ヘッド装置
US6183108B1 (en) * 1998-03-30 2001-02-06 Michael A. Herold Lighting apparatus with convex-convex lens assembly
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
KR100633590B1 (ko) * 2002-02-25 2006-10-16 송태선 광기록매체의 두께 편차를 보상할 수 있는 광픽업 장치
JP7052921B2 (ja) * 2019-09-25 2022-04-12 三菱電機株式会社 受光素子モジュール

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3932700A (en) * 1974-02-04 1976-01-13 Zenith Radio Corporation Focus tracking registration for optical reproducing systems
FR2330062A1 (fr) * 1975-10-31 1977-05-27 Thomson Brandt Dispositif de recherche de focalisation et lecteur optique comportant un tel dispositif
US4302830A (en) * 1978-05-10 1981-11-24 Olympus Optical Company Ltd. Optical information reading-out apparatus
NL8003729A (nl) * 1980-06-27 1982-01-18 Philips Nv Inrichting voor optische scherpstelling.
US4458144A (en) * 1981-06-30 1984-07-03 Storage Technology Corporation Apparatus for reading information stored in a track pattern on a radiation reflecting record
US4475179A (en) * 1982-06-30 1984-10-02 Eastman Kodak Company Optical disc write/read methods and apparatus with improved focus and tracking control
JPS59216116A (ja) * 1983-05-23 1984-12-06 Pioneer Electronic Corp 半導体レ−ザ
JPS60154223A (ja) * 1984-01-23 1985-08-13 Minolta Camera Co Ltd 光デイスク用対物レンズ
JPS60185231A (ja) * 1984-03-05 1985-09-20 Oki Electric Ind Co Ltd 半導体レ−ザ光雑音低減方法

Also Published As

Publication number Publication date
EP0236503B1 (en) 1992-01-22
KR900008608B1 (ko) 1990-11-26
JPH0816738B1 (ko) 1996-02-21
US4797545A (en) 1989-01-10
WO1987001466A1 (en) 1987-03-12
EP0236503A4 (en) 1989-02-22
DE3683634D1 (de) 1992-03-05
EP0236503A1 (en) 1987-09-16

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20051123

Year of fee payment: 16

EXPY Expiration of term