NL1004078C2 - Optische aftastinrichting. - Google Patents

Optische aftastinrichting. Download PDF

Info

Publication number
NL1004078C2
NL1004078C2 NL1004078A NL1004078A NL1004078C2 NL 1004078 C2 NL1004078 C2 NL 1004078C2 NL 1004078 A NL1004078 A NL 1004078A NL 1004078 A NL1004078 A NL 1004078A NL 1004078 C2 NL1004078 C2 NL 1004078C2
Authority
NL
Netherlands
Prior art keywords
light
disc
scanning device
optical scanning
objective lens
Prior art date
Application number
NL1004078A
Other languages
English (en)
Dutch (nl)
Other versions
NL1004078A1 (nl
Inventor
Kun-Ho Cho
Chul-Woo Lee
Jang-Hoon Yoo
Chong-Sam Chung
Kyung-Hwa Rim
Soo-Yeul Jung
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of NL1004078A1 publication Critical patent/NL1004078A1/xx
Application granted granted Critical
Publication of NL1004078C2 publication Critical patent/NL1004078C2/nl

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
    • G11B7/08—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
    • G11B7/13—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
    • G11B7/0908—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
    • G11B7/0909—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 astigmatic methods
    • 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
    • G11B7/133—Shape of individual detector elements
    • 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006—Recording, 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 Head (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Holo Graphy (AREA)
  • Glass Compositions (AREA)
NL1004078A 1995-10-04 1996-09-20 Optische aftastinrichting. NL1004078C2 (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1019950033912A KR100200857B1 (ko) 1995-10-04 1995-10-04 광픽업장치
KR19950033912 1995-10-04

Publications (2)

Publication Number Publication Date
NL1004078A1 NL1004078A1 (nl) 1997-04-08
NL1004078C2 true NL1004078C2 (nl) 1998-01-07

Family

ID=19429195

Family Applications (1)

Application Number Title Priority Date Filing Date
NL1004078A NL1004078C2 (nl) 1995-10-04 1996-09-20 Optische aftastinrichting.

Country Status (8)

Country Link
US (1) US5802037A (ko)
JP (1) JPH09120557A (ko)
KR (1) KR100200857B1 (ko)
DE (1) DE19640838B4 (ko)
FR (1) FR2739716B1 (ko)
GB (1) GB2306070B (ko)
IT (1) IT1285224B1 (ko)
NL (1) NL1004078C2 (ko)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6259668B1 (en) * 1996-02-14 2001-07-10 Samsung Electronics Co., Ltd. Recording/reproducing apparatus having an optical pickup device to read from and record information to disks of different thicknesses
KR100224621B1 (ko) * 1996-09-16 1999-10-15 윤종용 두께가 다른 디스크 호환을 위한 기록재생용 광픽업
KR100195137B1 (ko) * 1996-10-24 1999-06-15 윤종용 호환형 광픽업장치
US6091690A (en) * 1997-02-06 2000-07-18 Matsushita Electric Industrial Co., Ltd. Optical head device and optical information processing apparatus
JPH10233053A (ja) * 1997-02-20 1998-09-02 Alps Electric Co Ltd ディスク判別装置およびディスク判別方法
TW342493B (en) * 1997-04-29 1998-10-11 Ind Tech Res Inst Digital video disc (DVD) optical head with dual-wavelength laser
KR100335408B1 (ko) * 1998-03-03 2002-08-21 삼성전자 주식회사 포커스옵셋조정가능한광픽업장치
JP3123500B2 (ja) 1998-03-12 2001-01-09 日本電気株式会社 光ディスク装置
EP1763876B1 (en) * 2004-06-29 2008-05-28 Koninklijke Philips Electronics N.V. Method and system for generating a spherical aberration signal error

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695158A (en) * 1984-03-02 1987-09-22 Pioneer Electronic Corporation Focus error detector
WO1996028816A2 (en) * 1995-03-15 1996-09-19 Philips Electronics N.V. Device for optically scanning a recording medium

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2724305A (en) * 1951-09-04 1955-11-22 Herman F Brandt Apparatus for recording eye movement
FR2266932B1 (ko) * 1973-03-02 1977-09-02 Thomson Brandt
FR2235448B1 (ko) * 1973-06-29 1976-05-07 Thomson Brandt
GB1603596A (en) * 1977-06-06 1981-11-25 Mca Disco Vision Optical transducer and focusing system
JPH0718761B2 (ja) * 1980-09-19 1995-03-06 株式会社ニコン 測光装置
JPS58208944A (ja) * 1982-05-31 1983-12-05 Sony Corp 光学ヘツド制御信号発生装置
US4641296A (en) * 1983-04-28 1987-02-03 Nippon Kogaku K.K. Optical head for information recording apparatus
US4704024A (en) * 1983-12-09 1987-11-03 Canon Kabushiki Kaisha Photometric circuit for camera
US4737946A (en) * 1984-09-03 1988-04-12 Omron Tateisi Electronics Co. Device for processing optical data with improved optical allignment means
CA1258906A (en) * 1985-04-22 1989-08-29 Hiroshi Oinoue Semiconductor laser apparatus for optical head
JPS63215942A (ja) * 1987-03-04 1988-09-08 Natl Aerospace Lab 粒子径分布計測用光電変換センサ−
US4816665A (en) * 1987-08-06 1989-03-28 Maxtor Corporation Sensor array for focus detection
US5146258A (en) * 1990-12-24 1992-09-08 Eastman Kodak Company Multiple photodiode array for light metering
DE4140806A1 (de) * 1991-12-11 1993-06-17 Thomson Brandt Gmbh Optische abtastvorrichtung
US5281797A (en) * 1991-12-26 1994-01-25 Hitachi, Ltd. Short wavelength optical disk head having a changeable aperture
JPH05325245A (ja) * 1992-05-20 1993-12-10 Olympus Optical Co Ltd 光記録媒体の情報記録／再生装置
JP2532818B2 (ja) * 1993-02-01 1996-09-11 松下電器産業株式会社 対物レンズおよび光ヘッド装置
US5532999A (en) * 1993-06-25 1996-07-02 Matsushita Electric Industrial Co., Ltd. Optical detector having stray carrier absorption regions between light receiving elements, and an optical head using the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695158A (en) * 1984-03-02 1987-09-22 Pioneer Electronic Corporation Focus error detector
WO1996028816A2 (en) * 1995-03-15 1996-09-19 Philips Electronics N.V. Device for optically scanning a recording medium

Also Published As

Publication number Publication date
GB9620678D0 (en) 1996-11-20
KR970023016A (ko) 1997-05-30
FR2739716B1 (fr) 1999-01-08
JPH09120557A (ja) 1997-05-06
ITMI961993A1 (it) 1998-03-27
NL1004078A1 (nl) 1997-04-08
DE19640838B4 (de) 2010-10-28
KR100200857B1 (ko) 1999-06-15
IT1285224B1 (it) 1998-06-03
DE19640838A1 (de) 1997-04-10
GB2306070B (en) 2000-02-02
FR2739716A1 (fr) 1997-04-11
US5802037A (en) 1998-09-01
GB2306070A (en) 1997-04-23

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Effective date: 20120401