JPS5657013A - Focus error detector - Google Patents

Focus error detector

Info

Publication number: JPS5657013A
Authority: JP; Japan
Prior art keywords: focus error; error detector; detector; focus; error
Prior art date: 1979-09-28
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.): Granted

Application number

JP13243180A

Other languages

English (en)

Other versions

JPH028379B2 (ja

Inventor

Petorusu Yozefusu Eem Yakobusu

Renesu Hendoriku

Aasaa Yan Shimonzu Kareru

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Koninklijke Philips NV

Original Assignee

Philips Gloeilampenfabrieken NV

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.)

1979-09-28

Filing date

1980-09-25

Publication date

1981-05-19

1980-09-25 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1981-05-19 Publication of JPS5657013A publication Critical patent/JPS5657013A/ja

1990-02-23 Publication of JPH028379B2 publication Critical patent/JPH028379B2/ja

Status Granted 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
- G11B7/0909—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

Landscapes

Optical Recording Or Reproduction (AREA)
Optical Head (AREA)
Automatic Focus Adjustment (AREA)

JP13243180A 1979-09-28 1980-09-25 Focus error detector Granted JPS5657013A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL7907216A NL7907216A (nl)	1979-09-28	1979-09-28	Optisch fokusfout-detektiestelsel.

Publications (2)

Publication Number	Publication Date
JPS5657013A true JPS5657013A (en)	1981-05-19
JPH028379B2 JPH028379B2 (ja)	1990-02-23

Family

ID=19833932

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP13243180A Granted JPS5657013A (en)	1979-09-28	1980-09-25	Focus error detector

Country Status (10)

Country	Link
US (1)	US4358200A (ja)
JP (1)	JPS5657013A (ja)
AU (1)	AU6270980A (ja)
CA (1)	CA1144792A (ja)
DE (1)	DE3035719A1 (ja)
ES (1)	ES495326A0 (ja)
FR (1)	FR2466787B1 (ja)
GB (1)	GB2059057B (ja)
IT (1)	IT1132757B (ja)
NL (1)	NL7907216A (ja)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS573235A (en) *	1980-06-07	1982-01-08	Ricoh Co Ltd	Focus controlling method
JPS57169934A (en) *	1981-03-24	1982-10-19	Thomson Csf	Optical sensor for controlling focus
JPS59119548A (ja) *	1982-12-25	1984-07-10	Pioneer Electronic Corp	光学式ピツクアツプ装置
JPS59167863A (ja) *	1983-03-14	1984-09-21	Minolta Camera Co Ltd	光デイスク用光学系
JPS6117232A (ja) *	1984-07-04	1986-01-25	Canon Inc	光ヘツド装置
JPS6139942A (ja) *	1984-08-01	1986-02-26	Matsushita Electric Ind Co Ltd	光ピツクアツプ
JPS6161240A (ja) *	1984-09-03	1986-03-29	Hitachi Ltd	光学式信号再生装置
JPS61151844A (ja) *	1984-12-26	1986-07-10	Hitachi Ltd	光学式再生装置
JPS61178740A (ja) *	1985-02-05	1986-08-11	Canon Inc	光ヘツド装置
JPS61233441A (ja) *	1985-04-09	1986-10-17	Canon Inc	光ヘツド装置
JPS61264521A (ja) *	1985-05-20	1986-11-22	Hitachi Ltd	光学式読取再生装置
JPS61289540A (ja) *	1985-06-17	1986-12-19	Pioneer Electronic Corp	光学式ピツクアツプ装置
JPS61292231A (ja) *	1985-06-19	1986-12-23	Akai Electric Co Ltd	光ピツクアツプ装置
JPS62172538A (ja) *	1986-01-24	1987-07-29	Nec Corp	光ヘツド装置
JPS62208440A (ja) *	1986-03-07	1987-09-12	Mitsubishi Electric Corp	光ピツクアツプ
JPS62293528A (ja) *	1986-06-13	1987-12-21	Mitsubishi Electric Corp	光学式情報再生装置
JPS6313418U (ja) *	1986-07-01	1988-01-28
JPS6358630A (ja) *	1986-08-29	1988-03-14	Mitsubishi Electric Corp	光学式情報再生装置
JPS63113948A (ja) *	1986-10-31	1988-05-18	Mitsubishi Electric Corp	光ピツクアツプ光学ヘツド装置
JPS63153732A (ja) *	1986-12-18	1988-06-27	Canon Electronics Inc	焦点検出装置
JPS63229640A (ja) *	1987-03-19	1988-09-26	Matsushita Electric Ind Co Ltd	光ヘツド装置
US5066138A (en) *	1988-06-16	1991-11-19	Mitsubishi Denki Kabushiki Kaisha	Optical head apparatus
US5233444A (en) *	1989-07-25	1993-08-03	Olympus Optical Co., Ltd.	Focus error detecting apparatus
JPH05250694A (ja) *	1992-11-20	1993-09-28	Canon Inc	光ヘッド装置
US5301182A (en) *	1991-04-17	1994-04-05	Matsushita Electric Industrial, Co., Ltd.	Optical pickup head
JPH07262600A (ja) *	1995-02-27	1995-10-13	Canon Inc	光ヘッド装置
US5475670A (en) *	1990-12-28	1995-12-12	Matsushita Electronics Corporation	Deflection plate for optical pick-up device
JPH0922541A (ja) *	1986-04-11	1997-01-21	Thomson Csf	記録媒体の光学読取装置
US5652744A (en) *	1996-02-08	1997-07-29	Industrial Technology Research Institute	Single surface diffractive element for optical pickup heads
WO2006098071A1 (ja) *	2005-03-08	2006-09-21	Mitsubishi Denki Kabushiki Kaisha	光学装置及びそれを用いた光デイスク装置

Families Citing this family (63)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5752006A (en) *	1980-08-19	1982-03-27	Olympus Optical Co Ltd	Method and device for detecting focus
JPS5737742A (en) *	1980-08-19	1982-03-02	Olympus Optical Co Ltd	Method and device for optical information recording
JPS5766533A (en) *	1980-10-09	1982-04-22	Olympus Optical Co Ltd	Optical information reader
JPS5774837A (en) *	1980-10-25	1982-05-11	Olympus Optical Co Ltd	Signal detection system of optical information reproducing device
JPS5810713A (ja) *	1981-07-14	1983-01-21	Dainippon Screen Mfg Co Ltd	光ビ−ム分配器
DE3376172D1 (en) *	1982-01-22	1988-05-05	Hitachi Ltd	Method and apparatus for reducing semiconductor laser optical noise
FR2523350B1 (fr) *	1982-03-09	1987-05-22	Thomson Csf	Tete optique dans un dispositif d'enregistrement-lecture d'un support d'information
NL8202058A (nl) *	1982-05-19	1983-12-16	Philips Nv	Opto-elektronisch fokusfout-detektiestelsel.
GB2122835B (en) *	1982-06-30	1986-08-06	Eastman Kodak Co	Rangefinder
US4499569A (en) *	1982-09-07	1985-02-12	Discovision Associates	Writing beam focus monitor
JPS59162514A (ja) *	1983-03-08	1984-09-13	Dainippon Screen Mfg Co Ltd	画像走査記録装置における焦点調整方法
US4733065A (en) *	1984-06-27	1988-03-22	Canon Kabushiki Kaisha	Optical head device with diffraction grating for separating a light beam incident on an optical recording medium from a light beam reflected therefrom
JPH067658B2 (ja) *	1985-02-15	1994-01-26	株式会社リコー	カラ−画像読取装置
JPS61236035A (ja) *	1985-04-09	1986-10-21	Sony Corp	光学ヘツド
JPS629537A (ja) *	1985-07-08	1987-01-17	Pioneer Electronic Corp	光学式ピツクアツプ装置
US4778984A (en) *	1985-10-16	1988-10-18	Canon Denshi Kabushiki Kaisha	Apparatus for detecting focus from astigmatism
JPH0750532B2 (ja) *	1986-05-26	1995-05-31	日本電気株式会社	光ヘツド装置
JPH0630164B2 (ja) *	1985-12-16	1994-04-20	キヤノン株式会社	光ヘツド装置
DE3776945D1 (de) *	1986-04-18	1992-04-09	Mitsubishi Electric Corp	Optischer kopf.
JPH0810854Y2 (ja) *	1986-05-12	1996-03-29	パイオニア株式会社	光磁気記録媒体再生装置
US5189651A (en) *	1986-05-12	1993-02-23	Pioneer Electronic Corporation	Optical system in magneto-optical recording and reproducing device
KR900008380B1 (ko) *	1986-07-01	1990-11-17	미쓰비시덴기 가부시기 가이샤	광학식 헤드장치
NL8601876A (nl) *	1986-07-18	1988-02-16	Philips Nv	Inrichting voor het aftasten van een optische registratiedrager.
NL8601974A (nl) *	1986-08-01	1988-03-01	Philips Nv	Inrichting voor het met optische straling aftasten van een stralingsreflekterend informatievlak.
US4885732A (en) *	1986-09-02	1989-12-05	Fuji Photo Film Co., Ltd.	Optical pickup apparatus for detecting and correcting focusing and tracking errors in detected recorded signals
US4789977A (en) *	1986-11-06	1988-12-06	Laser Magnetic Storage International Company	Optical data recording device
JPH0675307B2 (ja) *	1987-01-30	1994-09-21	富士写真フイルム株式会社	光磁気記録媒体用ピツクアツプ
US4879706A (en) *	1987-07-29	1989-11-07	Laser Magnetic Storage International Company	Method and apparatus for focus and tracking in an optical disk system
EP0539354B1 (en) *	1987-08-24	1997-06-04	Sharp Kabushiki Kaisha	Optical pickup apparatus
EP0339722B1 (en) *	1988-04-26	1993-10-06	Koninklijke Philips Electronics N.V.	Arrangement for optically scanning a magneto-optical carrier
NL8901245A (nl) *	1989-05-19	1990-12-17	Philips Nv	Retrofokus objektieflens en optische aftastinrichting voorzien van een dergelijke lens.
CA2012401C (en) *	1989-05-26	1994-05-10	Anthony G. Dewey	Focus-error detection using prism-enhanced spot size monitoring
JPH02311816A (ja) *	1989-05-27	1990-12-27	Sharp Corp	ビーム変換装置
US4998011A (en) *	1989-11-17	1991-03-05	Applied Magnetics Corporation	Flat plate focus sensing apparatus
JP2684822B2 (ja) *	1990-06-06	1997-12-03	松下電器産業株式会社	光ピックアップヘッド装置
US5245174A (en) *	1990-10-15	1993-09-14	Applied Magnetics Corporation	Focus sensing apparatus utilizing a reflecting surface having variable reflectivity
GB2248989B (en) *	1990-10-15	1995-05-24	Applied Magnetics Corp	Focus sensing apparatus and method
US5751480A (en) *	1991-04-09	1998-05-12	Canon Kabushiki Kaisha	Plate-like polarizing element, a polarizing conversion unit provided with the element, and a projector provided with the unit
US5568315A (en) *	1991-05-28	1996-10-22	Discovision Associates	Optical beamsplitter
US5331622A (en) *	1991-05-28	1994-07-19	Applied Magnetics Corporation	Compact optical head
JP3241781B2 (ja) *	1991-08-22	2001-12-25	松下電器産業株式会社	光ヘッド装置および光情報記録装置、光情報再生装置
JPH0554409A (ja) *	1991-08-27	1993-03-05	Nikon Corp	焦点検出光学系
JP3246608B2 (ja) *	1991-11-18	2002-01-15	パイオニア株式会社	光学式情報再生装置
JP2975466B2 (ja) *	1991-11-18	1999-11-10	パイオニア株式会社	光学式情報再生装置
JP3109877B2 (ja) *	1991-11-18	2000-11-20	パイオニア株式会社	光学式情報再生装置
KR100326688B1 (ko) *	1993-01-04	2002-06-20	요트.게.아. 롤페즈	광주사장치및방사원검출장치
EP0605929B1 (en) *	1993-01-04	1998-07-29	Koninklijke Philips Electronics N.V.	Device for optically scanning a surface
US6648227B2 (en) *	2000-10-20	2003-11-18	Symbol Technologies, Inc.	Scanning module for a bar code reader with a focusing lens
TW265419B (ja) *	1994-06-07	1995-12-11	Philips Electronics Nv
TW287239B (ja) *	1994-06-07	1996-10-01	Philips Electronics Nv
US5926450A (en) *	1995-03-15	1999-07-20	U.S. Philips Corporation	Device for optically scanning record carriers of different thicknesses
US5642441A (en) *	1995-10-24	1997-06-24	Neopath, Inc.	Separation apparatus and method for measuring focal plane
KR19980701723A (ko) *	1995-11-27	1998-06-25	요트. 게. 아. 롤페즈	테이프형 기록 캐리어를 주사하는 광학 장치
EP0845142A1 (en) *	1995-12-27	1998-06-03	Koninklijke Philips Electronics N.V.	Device for scanning an optically readable record carrier
NL1007179C2 (nl) *	1996-09-30	1998-07-08	Daewoo Electronics Co Ltd	Optisch opneemstelsel.
US5939710A (en) *	1996-09-30	1999-08-17	Daewoo Electronics Co., Ltd.	Optical pickup system incorporating therein a beam splitter having a phase layer
JPH10333025A (ja)	1997-05-28	1998-12-18	Pioneer Electron Corp	光ピックアップ装置
DE19930628A1 (de) *	1999-07-02	2001-02-01	Graul Renate	Topographiemeßgerät
US6476382B1 (en) *	2000-09-27	2002-11-05	Carnegie Mellon University	System and method for measuring the size of a focused optical spot
KR20040039370A (ko) *	2001-09-20	2004-05-10	코닌클리케 필립스 일렉트로닉스 엔.브이.	광학주사장치용 광학장치
US20040090667A1 (en) *	2002-03-22	2004-05-13	Carl-Zeiss-Stiftung Trading As Carl Zeiss	Microscopy system
JP2009110558A (ja) *	2007-10-26	2009-05-21	Sanyo Electric Co Ltd	光ピックアップ装置
DE102022114792B3 (de)	2022-06-13	2023-11-02	Sick Ag	Lichtsenderanordnung und optoelektronische sensoranordnung

Citations (1)

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Publication number	Priority date	Publication date	Assignee	Title
JPS5439101A (en) *	1977-08-30	1979-03-26	Olympus Optical Co Ltd	Automatic focusing method

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1979
- 1979-09-28 NL NL7907216A patent/NL7907216A/nl not_active Application Discontinuation
1980
- 1980-01-04 US US06/109,732 patent/US4358200A/en not_active Expired - Lifetime
- 1980-09-22 DE DE19803035719 patent/DE3035719A1/de active Granted
- 1980-09-24 GB GB8030828A patent/GB2059057B/en not_active Expired
- 1980-09-24 FR FR8020505A patent/FR2466787B1/fr not_active Expired
- 1980-09-25 AU AU62709/80A patent/AU6270980A/en not_active Abandoned
- 1980-09-25 CA CA000361447A patent/CA1144792A/en not_active Expired
- 1980-09-25 ES ES495326A patent/ES495326A0/es active Granted
- 1980-09-25 IT IT24923/80A patent/IT1132757B/it active
- 1980-09-25 JP JP13243180A patent/JPS5657013A/ja active Granted

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Cited By (36)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS573235A (en) *	1980-06-07	1982-01-08	Ricoh Co Ltd	Focus controlling method
JPS6319936B2 (ja) *	1980-06-07	1988-04-25	Ricoh Kk
JPS57169934A (en) *	1981-03-24	1982-10-19	Thomson Csf	Optical sensor for controlling focus
JPH0447377B2 (ja) *	1981-03-24	1992-08-03	Thomson Csf
JPS59119548A (ja) *	1982-12-25	1984-07-10	Pioneer Electronic Corp	光学式ピツクアツプ装置
JPH0570211B2 (ja) *	1982-12-25	1993-10-04	Pioneer Electronic Corp
JPS59167863A (ja) *	1983-03-14	1984-09-21	Minolta Camera Co Ltd	光デイスク用光学系
JPS6117232A (ja) *	1984-07-04	1986-01-25	Canon Inc	光ヘツド装置
JPS6139942A (ja) *	1984-08-01	1986-02-26	Matsushita Electric Ind Co Ltd	光ピツクアツプ
JPH058499B2 (ja) *	1984-08-01	1993-02-02	Matsushita Electric Ind Co Ltd
JPS6161240A (ja) *	1984-09-03	1986-03-29	Hitachi Ltd	光学式信号再生装置
JPH0447896B2 (ja) *	1984-09-03	1992-08-05	Hitachi Ltd
JPS61151844A (ja) *	1984-12-26	1986-07-10	Hitachi Ltd	光学式再生装置
JPS61178740A (ja) *	1985-02-05	1986-08-11	Canon Inc	光ヘツド装置
JPS61233441A (ja) *	1985-04-09	1986-10-17	Canon Inc	光ヘツド装置
JPS61264521A (ja) *	1985-05-20	1986-11-22	Hitachi Ltd	光学式読取再生装置
JPS61289540A (ja) *	1985-06-17	1986-12-19	Pioneer Electronic Corp	光学式ピツクアツプ装置
JPS61292231A (ja) *	1985-06-19	1986-12-23	Akai Electric Co Ltd	光ピツクアツプ装置
JPS62172538A (ja) *	1986-01-24	1987-07-29	Nec Corp	光ヘツド装置
JPS62208440A (ja) *	1986-03-07	1987-09-12	Mitsubishi Electric Corp	光ピツクアツプ
JPH0922541A (ja) *	1986-04-11	1997-01-21	Thomson Csf	記録媒体の光学読取装置
JPS62293528A (ja) *	1986-06-13	1987-12-21	Mitsubishi Electric Corp	光学式情報再生装置
JPS6313418U (ja) *	1986-07-01	1988-01-28
JPS6358630A (ja) *	1986-08-29	1988-03-14	Mitsubishi Electric Corp	光学式情報再生装置
JPS63113948A (ja) *	1986-10-31	1988-05-18	Mitsubishi Electric Corp	光ピツクアツプ光学ヘツド装置
JPS63153732A (ja) *	1986-12-18	1988-06-27	Canon Electronics Inc	焦点検出装置
JPS63229640A (ja) *	1987-03-19	1988-09-26	Matsushita Electric Ind Co Ltd	光ヘツド装置
US5066138A (en) *	1988-06-16	1991-11-19	Mitsubishi Denki Kabushiki Kaisha	Optical head apparatus
US5233444A (en) *	1989-07-25	1993-08-03	Olympus Optical Co., Ltd.	Focus error detecting apparatus
US5475670A (en) *	1990-12-28	1995-12-12	Matsushita Electronics Corporation	Deflection plate for optical pick-up device
US5301182A (en) *	1991-04-17	1994-04-05	Matsushita Electric Industrial, Co., Ltd.	Optical pickup head
JPH05250694A (ja) *	1992-11-20	1993-09-28	Canon Inc	光ヘッド装置
JPH07262600A (ja) *	1995-02-27	1995-10-13	Canon Inc	光ヘッド装置
US5652744A (en) *	1996-02-08	1997-07-29	Industrial Technology Research Institute	Single surface diffractive element for optical pickup heads
WO2006098071A1 (ja) *	2005-03-08	2006-09-21	Mitsubishi Denki Kabushiki Kaisha	光学装置及びそれを用いた光デイスク装置
US7839733B2 (en)	2005-03-08	2010-11-23	Mitsubishi Electric Corporation	Optical device and optical disc apparatus utilizing the optical device

Also Published As

Publication number	Publication date
GB2059057B (en)	1983-09-21
JPH028379B2 (ja)	1990-02-23
FR2466787A1 (fr)	1981-04-10
DE3035719A1 (de)	1981-04-09
CA1144792A (en)	1983-04-19
AU6270980A (en)	1981-04-09
ES8105876A1 (es)	1981-06-01
IT8024923A0 (it)	1980-09-25
DE3035719C2 (ja)	1989-03-09
NL7907216A (nl)	1981-03-31
GB2059057A (en)	1981-04-15
IT1132757B (it)	1986-07-02
US4358200A (en)	1982-11-09
FR2466787B1 (fr)	1986-03-28
ES495326A0 (es)	1981-06-01

Publication	Publication Date	Title
JPS5657013A (en)	1981-05-19	Focus error detector
JPS55143694A (en)	1980-11-10	Invador detector
GB2056671B (en)	1983-04-20	High resoltuion radiation detector
JPS5694203A (en)	1981-07-30	Location detector
GB2157524B (en)	1987-09-16	Focus error detector
GB2057218B (en)	1984-02-29	Detecting focussing error
GB2051348B (en)	1983-04-07	Radiation detector
JPS56626A (en)	1981-01-07	Radiation detector
JPS54140533A (en)	1979-10-31	Focus error detector
JPS56100372A (en)	1981-08-12	Movinggtarget detector
JPS5640807A (en)	1981-04-17	Optical arrangement for radiation detector
JPS5599042A (en)	1980-07-28	Detector for knockkvibration
JPS54145133A (en)	1979-11-13	Focus detector
JPS54150125A (en)	1979-11-26	Focus detector
DE3363889D1 (en)	1986-07-10	Focus state detector
JPS5472044A (en)	1979-06-09	Focus coincidence detector
JPS54135528A (en)	1979-10-20	Focus detector
JPS55157097A (en)	1980-12-06	Detector
GB2066014B (en)	1984-05-02	Focus indicator
JPS54104859A (en)	1979-08-17	Automatic focus detector
JPS54141628A (en)	1979-11-05	Coincident focus detector
JPS55144512A (en)	1980-11-11	Radiation detector
JPS55150092A (en)	1980-11-21	Invador detector
JPS5494231A (en)	1979-07-25	Error detector
JPS55124078A (en)	1980-09-24	Trouble detector