KR960035465A - 이중 포커싱이 가능한 광 픽업장치 - Google Patents

이중 포커싱이 가능한 광 픽업장치 Download PDF

Info

Publication number
KR960035465A
KR960035465A KR1019950004410A KR19950004410A KR960035465A KR 960035465 A KR960035465 A KR 960035465A KR 1019950004410 A KR1019950004410 A KR 1019950004410A KR 19950004410 A KR19950004410 A KR 19950004410A KR 960035465 A KR960035465 A KR 960035465A
Authority
KR
South Korea
Prior art keywords
disc
adjusting means
light
optical
optical pickup
Prior art date
Application number
KR1019950004410A
Other languages
English (en)
Other versions
KR0154200B1 (ko
Inventor
김진용
김대영
Original Assignee
구자홍
Lg 전자주식회사
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 구자홍, Lg 전자주식회사 filed Critical 구자홍
Priority to KR1019950004410A priority Critical patent/KR0154200B1/ko
Priority to KR1019950039516A priority patent/KR0176854B1/ko
Priority to TW084112748A priority patent/TW290686B/zh
Priority to CA002164384A priority patent/CA2164384C/en
Priority to US08/567,041 priority patent/US6026065A/en
Priority to DE69520731T priority patent/DE69520731T2/de
Priority to EP95402740A priority patent/EP0731457B1/en
Priority to CN95120861A priority patent/CN1096063C/zh
Priority to JP7335349A priority patent/JPH08263867A/ja
Priority to BR9506104A priority patent/BR9506104A/pt
Priority to MX9600031A priority patent/MX9600031A/es
Publication of KR960035465A publication Critical patent/KR960035465A/ko
Application granted granted Critical
Publication of KR0154200B1 publication Critical patent/KR0154200B1/ko
Priority to US09/224,798 priority patent/US6034935A/en
Priority to US09/333,264 priority patent/US6088317A/en

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/139Numerical aperture control means
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B2007/0003Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

본 발명은 광 픽업장치에 관한 것으로서, 종래 고밀도 디스크와 기존 CD를 동시에 재생할 수 없는 문제점을 해결하기 이해 종래의 광 픽업장치에 디스크 종류에 상응하게 입사된 광량을 조절하는 광량조절수단을 제공함으로써 두께가 서로 상이한 디스크에서도 동시에 데이타를 재생할 수가 있는 것이다.

Description

이중 포커싱이 가능한 광 픽업장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제5도는 본 발명 이중 포커싱이 가능한 광 픽업장치의 구성도, 제6도의 (가)와 (나)는 제5도에 따른 광량조절수단의 각 예시도, 제7도는 광량조절 구동수단에 대한 개략 구성도.

Claims (2)

  1. 광디스크에서 정보를 독출하여 재생하는 광 픽업의 광원에서 발생된 빛을 2종류 이상의 디스크에 정확히 포커싱하기 위해 빛을 차페하여 제1디스크 독취용 빔 및 제2디스크 독취용 빔을 형성하는 광량조절수단과, 상기 포커싱된 빔을 판독하여 디스크의 종류를 판별하여 디스크에 따라 상기 광량조절수단이 구동되도록 하는 디스크 판별수단과, 상기 디스크 판별수단에 의한 디스크 종류에 따라 상기 광량조절수단을 구동하는 광량조절 구동수단을 포함하여 구성된 이중 포커싱이 가능한 광 픽업장치.
  2. 제1항에 있어서, 상기 광량조절수단은 원형 조기개 또는 슬라이드형 조기개로 구성된 것을 특징으로 하는 이중 포커싱이 가능한 광 픽업장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950004410A 1995-03-04 1995-03-04 Cd/dvd 계열 디스크 호환 기록/재생이 가능한 광픽업장치 KR0154200B1 (ko)

Priority Applications (13)

Application Number Priority Date Filing Date Title
KR1019950004410A KR0154200B1 (ko) 1995-03-04 1995-03-04 Cd/dvd 계열 디스크 호환 기록/재생이 가능한 광픽업장치
KR1019950039516A KR0176854B1 (ko) 1995-03-04 1995-10-31 두께가 상이한 디스크의 호환 기록/재생장치 및 광픽업장치
TW084112748A TW290686B (ko) 1995-03-04 1995-11-30
US08/567,041 US6026065A (en) 1995-03-04 1995-12-04 Optical pick-up apparatus capable of reading data irrespective of disc type
CA002164384A CA2164384C (en) 1995-03-04 1995-12-04 Optical pick-up apparatus capable of reading data irrespective of disc type
EP95402740A EP0731457B1 (en) 1995-03-04 1995-12-05 Optical pick-up apparatus capable of reading data irrespective of disc type
DE69520731T DE69520731T2 (de) 1995-03-04 1995-12-05 Optisches Abtastgerät zum Lesen von Daten von beliebigen Plattentypen
CN95120861A CN1096063C (zh) 1995-03-04 1995-12-18 能够不管盘类型读出数据的光拾取设备
JP7335349A JPH08263867A (ja) 1995-03-04 1995-12-22 ディスクの種類に無関係に読取可能な光ピックアップ装置
BR9506104A BR9506104A (pt) 1995-03-04 1995-12-27 Aparelho captor óptico capaz de ler dados independente do tipo de disco
MX9600031A MX9600031A (es) 1995-03-04 1996-01-03 Aparato de captacion optica capaz de leer datos independientemente del tipo de disco.
US09/224,798 US6034935A (en) 1995-03-04 1998-12-31 Optical pick-up apparatus capable of reading data irrespective of disc type
US09/333,264 US6088317A (en) 1995-03-04 1999-06-15 Optical pick-up apparatus capable of reading data irrespective of disc type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950004410A KR0154200B1 (ko) 1995-03-04 1995-03-04 Cd/dvd 계열 디스크 호환 기록/재생이 가능한 광픽업장치

Publications (2)

Publication Number Publication Date
KR960035465A true KR960035465A (ko) 1996-10-24
KR0154200B1 KR0154200B1 (ko) 1998-12-15

Family

ID=19409207

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950004410A KR0154200B1 (ko) 1995-03-04 1995-03-04 Cd/dvd 계열 디스크 호환 기록/재생이 가능한 광픽업장치

Country Status (2)

Country Link
KR (1) KR0154200B1 (ko)
TW (1) TW290686B (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100354534B1 (ko) * 1998-03-17 2002-12-11 삼성전자 주식회사 협트랙광디스크를위한광픽업

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW385435B (en) 1996-05-30 2000-03-21 Hitachi Ltd An optical disk discriminating system of optical disk apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100354534B1 (ko) * 1998-03-17 2002-12-11 삼성전자 주식회사 협트랙광디스크를위한광픽업

Also Published As

Publication number Publication date
KR0154200B1 (ko) 1998-12-15
TW290686B (ko) 1996-11-11

Similar Documents

Publication Publication Date Title
MX9600031A (es) Aparato de captacion optica capaz de leer datos independientemente del tipo de disco.
BR9505203A (pt) Disco óptico aparelho e processo de reprodução de discos ópticos
KR880004444A (ko) 광정보 기록재생장치
KR970076577A (ko) 광디스크장치
KR970060080A (ko) 광디스크 시스템에 있어서 두께가 다른 디스크간의 자동판별방법 및 장치
KR960701437A (ko) 기록 및/또는 재생 겸용 장치(compatible recording and/or playback device)
KR840003511A (ko) 디스크 재생장치
US5892748A (en) Optical pickup for reading or recording information on a recording surface
JP2821122B2 (ja) 光磁気ディスク装置および光磁気記録方法
KR100213270B1 (ko) 양면 디스크용 광 픽업
KR960035465A (ko) 이중 포커싱이 가능한 광 픽업장치
TW347476B (en) Light pickup
KR970012379A (ko) 듀얼 포커스 광 픽업장치
CN1019428B (zh) 按照三束处理对信息介质扫描的光扫描方法
KR100200828B1 (ko) 포커스에러 검출장치
JPS5755568A (en) Recording and reproducing device
KR880003295A (ko) 광학식 디스크재생장치의 촛점 서어보이득 조정회로
JPS5873024A (ja) 光学式情報処理装置
JPS61283043A (ja) 光学的情報記録再生装置
JP3086465B2 (ja) 信号再生方法
KR970071556A (ko) 광 픽-업장치
KR19980028155A (ko) 광 픽업
KR980004514A (ko) 광디스크재생장치
KR980004440A (ko) 광픽업장치
KR980004671A (ko) 광디스크 재생장치 및 방법

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
GRNT Written decision to grant
G170 Publication of correction
LAPS Lapse due to unpaid annual fee