KR970008231B1 - Optical pick-up apparatus - Google Patents

Optical pick-up apparatus Download PDF

Info

Publication number: KR970008231B1
Authority: KR; South Korea
Prior art keywords: thru; concentrated; optical disk; glass panel; hologram
Prior art date: 1992-06-03
Legal status (The legal status 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 status listed.): Expired - Lifetime

Application number

KR92009635A

Other languages

English (en)

Other versions

KR940001073A (ko

Inventor

Keun-Young Yang

Original Assignee

Lg Electronics Inc

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.)

1992-06-03

Filing date

1992-06-03

Publication date

1997-05-22

1992-06-03 Application filed by Lg Electronics Inc filed Critical Lg Electronics Inc

1992-06-03 Priority to KR92009635A priority Critical patent/KR970008231B1/ko

1993-06-03 Priority to JP5133245A priority patent/JPH0652559A/ja

1994-01-10 Publication of KR940001073A publication Critical patent/KR940001073A/ko

1995-04-19 Priority to US08/425,067 priority patent/US5638352A/en

1997-05-22 Application granted granted Critical

1997-05-22 Publication of KR970008231B1 publication Critical patent/KR970008231B1/ko

2012-06-03 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- 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
- G11B7/0912—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 push-pull method
- 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
- 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
- G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
- G11B7/0956—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc

Landscapes

Physics & Mathematics (AREA)
Optics & Photonics (AREA)
Optical Head (AREA)
Optical Recording Or Reproduction (AREA)
Diffracting Gratings Or Hologram Optical Elements (AREA)

KR92009635A 1992-06-03 1992-06-03 Optical pick-up apparatus Expired - Lifetime KR970008231B1 (en)

Priority Applications (3)

Application Number	Priority Date	Filing Date	Title
KR92009635A KR970008231B1 (en)	1992-06-03	1992-06-03	Optical pick-up apparatus
JP5133245A JPH0652559A (ja)	1992-06-03	1993-06-03	光ピックアップ装置
US08/425,067 US5638352A (en)	1992-06-03	1995-04-19	Optical pickup device

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
KR92009635A KR970008231B1 (en)	1992-06-03	1992-06-03	Optical pick-up apparatus

Publications (2)

Publication Number	Publication Date
KR940001073A KR940001073A (ko)	1994-01-10
KR970008231B1 true KR970008231B1 (en)	1997-05-22

Family

ID=19334133

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
KR92009635A Expired - Lifetime KR970008231B1 (en)	1992-06-03	1992-06-03	Optical pick-up apparatus

Country Status (3)

Country	Link
US (1)	US5638352A (ko)
JP (1)	JPH0652559A (ko)
KR (1)	KR970008231B1 (ko)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3563210B2 (ja) *	1996-02-14	2004-09-08	富士通株式会社	光ディスク装置用光学装置及び光ディスク装置
US6418095B1 (en) *	1996-06-18	2002-07-09	Matsushita Electric Industrial Co., Ltd.	Optical head device, inclination detection apparatus using the same, and optical information processing apparatus using the same
DE19638878A1 (de) *	1996-09-23	1998-03-26	Thomson Brandt Gmbh	Aufzeichnungs- oder Wiedergabegerät zum Aufzeichnen auf oder Wiedergeben von einem optischen Aufzeichnungsträger
JP3093664B2 (ja) *	1996-11-14	2000-10-03	日本電気株式会社	フォーカス誤差検出装置
JP3569107B2 (ja) *	1997-05-15	2004-09-22	株式会社三協精機製作所	光学ヘッド装置
BR9908316A (pt)	1998-12-29	2000-11-07	Koninkl Philips Electronics Nv	Dispositivo de exploração óptica
KR100555478B1 (ko) *	1999-06-18	2006-03-03	삼성전자주식회사	안정된 오차신호 검출 가능한 광픽업장치
KR100522594B1 (ko) *	2002-10-25	2005-10-24	삼성전자주식회사	호환형 광픽업장치 및 이를 채용한 광기록재생장치
JP4277005B2 (ja) *	2005-01-26	2009-06-10	パナソニック株式会社	光ピックアップ装置
JP4449912B2 (ja) *	2006-01-27	2010-04-14	日本ビクター株式会社	光ピックアップ

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0228620B1 (en) *	1985-12-10	1991-06-05	Nec Corporation	Optical head comprising a diffraction grating for directing two or more diffracted beams to optical detectors
US4929044A (en) *	1987-05-13	1990-05-29	Hitachi, Ltd.	Optical pickup using waveguide
US4907847A (en) *	1987-09-28	1990-03-13	Nec Home Electronics Ltd.	Optical pickup and hologram therefor
DE3882872T2 (de) *	1987-10-05	1993-11-11	Matsushita Electric Ind Co Ltd	Optische Lesekopf.
JPH01150242A (ja) *	1987-12-07	1989-06-13	Matsushita Electric Ind Co Ltd	光ヘッド装置
JPH01151022A (ja) *	1987-12-09	1989-06-13	Sharp Corp	光ピックアップ装置
JPH01311428A (ja) *	1988-06-09	1989-12-15	Matsushita Electric Ind Co Ltd	光ヘッド装置及びこれを用いた光情報装置
US5049732A (en) *	1988-10-21	1991-09-17	Sharp Kabushiki Kaisha	Optical pickup device with diffraction device
US5101389A (en) *	1989-08-04	1992-03-31	Ricoh Company, Ltd.	Optical information recording/reproducing apparatus
JPH0376036A (ja) *	1989-08-16	1991-04-02	Ricoh Co Ltd	光情報記録再生装置
JP3155287B2 (ja) *	1990-05-30	2001-04-09	株式会社リコー	光情報記録再生装置

1992
- 1992-06-03 KR KR92009635A patent/KR970008231B1/ko not_active Expired - Lifetime
1993
- 1993-06-03 JP JP5133245A patent/JPH0652559A/ja active Pending
1995
- 1995-04-19 US US08/425,067 patent/US5638352A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
KR940001073A (ko)	1994-01-10
US5638352A (en)	1997-06-10
JPH0652559A (ja)	1994-02-25

Publication	Publication Date	Title
CA2088701A1 (en)	1993-08-06	Optical information reproducing apparatus
EP1122578A3 (en)	2003-01-08	Light distributing apparatus
EP0323602A3 (en)	1990-10-10	Integrated fiber optics transmitter/receiver device
CA2007619A1 (en)	1990-07-13	Optical pickup apparatus utilizing a diffraction device
MY116529A (en)	2004-02-28	Optical pickup
EP0379363A3 (en)	1991-07-17	Optical head device for use in optical disk system
CA2084324A1 (en)	1993-06-05	Optical pickup apparatus and a hologram element used for same
CA2050385A1 (en)	1992-03-06	Optical encoder
KR970008231B1 (en)	1997-05-22	Optical pick-up apparatus
EP0371795A3 (en)	1991-05-08	Optical coupling circuit element
KR910001670A (ko)	1991-01-31	광학픽업장치
CA2013836A1 (en)	1990-10-06	Optical recording and reproducing apparatus
JPS57179954A (en)	1982-11-05	Optical type disc player
GB1263563A (en)	1972-02-09	Optical measuring apparatus
EP0488407A3 (en)	1992-08-26	Optical system for converging light beams to form a single beam spot on an optical disc
JPS57111838A (en)	1982-07-12	Optical information reader
JPS6460829A (en)	1989-03-07	Optical head
FR2393362A1 (fr)	1978-12-29	Dispositif automatique de reglage sans contact d'une distance, dans l'enregistrement et la reproduction optiques de signaux
JPS6427043A (en)	1989-01-30	Optical pickup device
JPS6413246A (en)	1989-01-18	Optical head for magneto-optical storage
JPS57120242A (en)	1982-07-27	Optical information reproducing device
CA2014163A1 (en)	1990-10-17	Optical recording and reproducing apparatus
EP0370483A3 (en)	1991-08-21	Information reproducing apparatus
JPS573234A (en)	1982-01-08	Optical recorder and reproducer
JPS6427362A (en)	1989-01-30	Laser exposure method for picture scanning recorder

Legal Events

Date	Code	Title	Description
1992-06-03	A201	Request for examination
1994-10-20	E902	Notification of reason for refusal
1994-12-20	AMND	Amendment
1995-03-10	E601	Decision to refuse application
1995-04-12	J2X1	Appeal (before the patent court)	Free format text: APPEAL AGAINST DECISION TO DECLINE REFUSAL
1997-04-28	G160	Decision to publish patent application
1997-08-19	B701	Decision to grant
1997-10-21	GRNT	Written decision to grant
2003-04-10	FPAY	Annual fee payment	Payment date: 20030411 Year of fee payment: 7
2004-10-22	LAPS	Lapse due to unpaid annual fee