IT1028311B - Dispositivo di focalizzazione e lettore ottico comportanteun siffatto dispositivo - Google Patents

Dispositivo di focalizzazione e lettore ottico comportanteun siffatto dispositivo

Info

Publication number
IT1028311B
IT1028311B IT19194/75A IT1919475A IT1028311B IT 1028311 B IT1028311 B IT 1028311B IT 19194/75 A IT19194/75 A IT 19194/75A IT 1919475 A IT1919475 A IT 1919475A IT 1028311 B IT1028311 B IT 1028311B
Authority
IT
Italy
Prior art keywords
siffact
optical reader
focusing
focusing device
reader
Prior art date
Application number
IT19194/75A
Other languages
English (en)
Italian (it)
Original Assignee
Thomson Brandt
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 Thomson Brandt filed Critical Thomson Brandt
Application granted granted Critical
Publication of IT1028311B publication Critical patent/IT1028311B/it

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
    • 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
IT19194/75A 1974-01-15 1975-01-13 Dispositivo di focalizzazione e lettore ottico comportanteun siffatto dispositivo IT1028311B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7401283A FR2271590B1 (OSRAM) 1974-01-15 1974-01-15

Publications (1)

Publication Number Publication Date
IT1028311B true IT1028311B (it) 1979-01-30

Family

ID=9133484

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19194/75A IT1028311B (it) 1974-01-15 1975-01-13 Dispositivo di focalizzazione e lettore ottico comportanteun siffatto dispositivo

Country Status (7)

Country Link
US (1) US4023033A (OSRAM)
JP (1) JPS5712188B2 (OSRAM)
CA (1) CA1065054A (OSRAM)
DE (1) DE2501124C3 (OSRAM)
FR (1) FR2271590B1 (OSRAM)
GB (1) GB1493963A (OSRAM)
IT (1) IT1028311B (OSRAM)

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US4799210A (en) * 1986-11-05 1989-01-17 Unisys Corporation Fiber optic read/write head for an optical disk memory system
JPS63142531A (ja) * 1986-12-05 1988-06-14 Sony Corp 光デイスク情報記録再生装置のサ−ボ回路
JP2695446B2 (ja) * 1988-08-31 1997-12-24 キヤノン株式会社 光学的情報記録再生装置
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JP2701392B2 (ja) * 1988-12-14 1998-01-21 ソニー株式会社 フオーカスエラー検出回路
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US5293366A (en) * 1990-07-26 1994-03-08 Canon Kabushiki Kaisha Information recording and reproducing apparatus provided with means for adding to a tracking signal offset corresponding to the positional deviation of a recording spot and a reproducing spot
NL9002841A (nl) * 1990-12-21 1992-07-16 Philips Nv Werkwijze en inrichting voor het langs optische weg inschrijven, uitlezen, en wissen van een meervlaks registratiedrager, en registratiedrager geschikt voor deze werkwijze en inrichting.
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JP3318636B2 (ja) * 1994-03-31 2002-08-26 ソニー株式会社 サーボ装置、光ディスク再生装置
FR2723243B1 (fr) * 1994-07-26 1996-09-06 Thomson Csf Dispositif d'enregistrement et/ou de lecture de tetes magnetiques et son procede de realisation
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JP2783180B2 (ja) * 1995-02-27 1998-08-06 日本電気株式会社 光ディスク装置
FR2731808B1 (fr) * 1995-03-14 1997-04-11 Thomson Csf Systeme de reglage de focalisation optique
ATE193781T1 (de) * 1995-03-15 2000-06-15 Koninkl Philips Electronics Nv Vorrichtung zum optischen abtasten eines auzeichnungsmediums
WO1997005605A2 (en) * 1995-07-31 1997-02-13 Philips Electronics N.V. Optical scanning apparatus for a multi-layer record carrier, including a focus control circuit
FR2739965B1 (fr) * 1995-10-17 1997-11-07 Thomson Csf Dispositif emetteur-recepteur de lumiere et systeme de lecture optique
GB9705105D0 (en) 1997-03-12 1997-04-30 Brown & Sharpe Limited Optical surface measurement apparatus and methods
FR2786345B1 (fr) 1998-11-24 2001-02-09 Thomson Csf Dispositif de cryptage quantique
US6567353B1 (en) * 1999-01-21 2003-05-20 Pentax Corporation Optical head with light receiving element surfaces divided into at least three light receiving areas
US7149173B2 (en) * 2000-10-17 2006-12-12 Thales Medium for recording optically readable data, method for making same and optical system reproducing said data
FR2824905B1 (fr) * 2001-05-15 2003-08-29 Thomson Csf Gyrometre a fibre optique
GB2468177B (en) * 2009-02-27 2011-01-12 Univ Sogang Ind Univ Coop Foun Optical surface measuring apparatus and method
EP3029485B1 (en) 2011-02-15 2019-12-11 Basf Se Detector for optically detecting at least one object
US9001029B2 (en) 2011-02-15 2015-04-07 Basf Se Detector for optically detecting at least one object
JP6415447B2 (ja) 2012-12-19 2018-10-31 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ １つ以上の物体を光学的に検出するための検出器
KR102252336B1 (ko) 2013-06-13 2021-05-14 바스프 에스이 광학 검출기 및 그의 제조 방법
WO2014198626A1 (en) 2013-06-13 2014-12-18 Basf Se Detector for optically detecting an orientation of at least one object
WO2014198623A1 (en) 2013-06-13 2014-12-18 Basf Se Detector for optically detecting at least one object
AU2014310703B2 (en) 2013-08-19 2018-09-27 Basf Se Optical detector
KR20160044009A (ko) 2013-08-19 2016-04-22 바스프 에스이 하나 이상의 물체의 위치를 결정하기 위한 검출기
JP6660931B2 (ja) 2014-07-08 2020-03-11 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ 少なくとも１つの物体の位置を決定するための検出器
JP6578006B2 (ja) 2014-09-29 2019-09-18 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ 少なくとも１個の物体の位置を光学的に求めるための検出器
WO2016092451A1 (en) 2014-12-09 2016-06-16 Basf Se Optical detector
CN107438775B (zh) 2015-01-30 2022-01-21 特里纳米克斯股份有限公司 用于至少一个对象的光学检测的检测器
WO2016146725A1 (en) 2015-03-17 2016-09-22 Basf Se Optical data reader
CN108027239B (zh) 2015-07-17 2020-07-24 特里纳米克斯股份有限公司 用于光学检测至少一个对象的检测器
CN108141579B (zh) 2015-09-14 2020-06-12 特里纳米克斯股份有限公司 3d相机
US20180329024A1 (en) 2015-11-25 2018-11-15 Trinamix Gmbh Detector for optically detecting at least one object
WO2017089553A1 (en) 2015-11-25 2017-06-01 Trinamix Gmbh Detector for optically detecting at least one object
US20190157470A1 (en) 2016-04-06 2019-05-23 Trinamix Gmbh Detector for optically detecting at least one object
JP2019515288A (ja) 2016-04-28 2019-06-06 トリナミクス ゲゼルシャフト ミット ベシュレンクテル ハフツング 少なくとも１個の対象物を光学的に検出するための検出器
WO2017186851A1 (en) 2016-04-28 2017-11-02 Trinamix Gmbh Detector for optically detecting at least one object
CN109564927B (zh) 2016-07-29 2023-06-20 特里纳米克斯股份有限公司 光学传感器和用于光学检测的检测器
US10890491B2 (en) 2016-10-25 2021-01-12 Trinamix Gmbh Optical detector for an optical detection
JP7241684B2 (ja) 2016-10-25 2023-03-17 トリナミクス ゲゼルシャフト ミット ベシュレンクテル ハフツング 少なくとも１個の対象物の光学的な検出のための検出器
US11860292B2 (en) 2016-11-17 2024-01-02 Trinamix Gmbh Detector and methods for authenticating at least one object
US10948567B2 (en) 2016-11-17 2021-03-16 Trinamix Gmbh Detector for optically detecting at least one object
WO2018096083A1 (en) 2016-11-25 2018-05-31 Trinamix Gmbh Optical detector comprising at least one optical waveguide
JP2020510820A (ja) 2017-03-16 2020-04-09 トリナミクス ゲゼルシャフト ミット ベシュレンクテル ハフツング 少なくとも１つの物体を光学的に検出するための検出器
CN110770555A (zh) 2017-04-20 2020-02-07 特里纳米克斯股份有限公司 光学检测器
KR102568462B1 (ko) 2017-06-26 2023-08-21 트리나미엑스 게엠베하 적어도 하나의 대상체의 위치를 결정하는 검출기
WO2019011803A1 (en) 2017-07-10 2019-01-17 Trinamix Gmbh DETECTOR FOR OPTICALLY DETECTING AT LEAST ONE OBJECT
CN111344592B (zh) 2017-08-28 2023-07-18 特里纳米克斯股份有限公司 确定至少一个对象的位置的检测器
CN111033300B (zh) 2017-08-28 2024-02-09 特里纳米克斯股份有限公司 用于确定至少一项几何信息的测距仪

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Also Published As

Publication number Publication date
CA1065054A (en) 1979-10-23
GB1493963A (en) 1977-12-07
JPS5712188B2 (OSRAM) 1982-03-09
DE2501124A1 (de) 1975-08-07
DE2501124C3 (de) 1981-08-27
FR2271590B1 (OSRAM) 1978-12-01
FR2271590A1 (OSRAM) 1975-12-12
US4023033A (en) 1977-05-10
DE2501124B2 (OSRAM) 1980-12-18
JPS50104539A (OSRAM) 1975-08-18

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19931231