DE2501124C3 - Einrichtung zum Fokussieren eines Leselichtbündels auf einem teilweise reflektierenden oder teilweise transparenten Informationsträger - Google Patents

Einrichtung zum Fokussieren eines Leselichtbündels auf einem teilweise reflektierenden oder teilweise transparenten Informationsträger

Info

Publication number
DE2501124C3
DE2501124C3 DE2501124A DE2501124A DE2501124C3 DE 2501124 C3 DE2501124 C3 DE 2501124C3 DE 2501124 A DE2501124 A DE 2501124A DE 2501124 A DE2501124 A DE 2501124A DE 2501124 C3 DE2501124 C3 DE 2501124C3
Authority
DE
Germany
Prior art keywords
axis
focusing
carrier
reading
light beam
Prior art date
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
Application number
DE2501124A
Other languages
German (de)
English (en)
Other versions
DE2501124B2 (US20020128544A1-20020912-P00008.png
DE2501124A1 (de
Inventor
Jean Claude Gonez-Le-Chatel Lehureau
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.)
Thomson-Brandt SA
Original Assignee
Thomson-Brandt SA
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 SA filed Critical Thomson-Brandt SA
Publication of DE2501124A1 publication Critical patent/DE2501124A1/de
Publication of DE2501124B2 publication Critical patent/DE2501124B2/de
Application granted granted Critical
Publication of DE2501124C3 publication Critical patent/DE2501124C3/de
Expired legal-status Critical Current

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

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
DE2501124A 1974-01-15 1975-01-14 Einrichtung zum Fokussieren eines Leselichtbündels auf einem teilweise reflektierenden oder teilweise transparenten Informationsträger Expired DE2501124C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7401283A FR2271590B1 (US20020128544A1-20020912-P00008.png) 1974-01-15 1974-01-15

Publications (3)

Publication Number Publication Date
DE2501124A1 DE2501124A1 (de) 1975-08-07
DE2501124B2 DE2501124B2 (US20020128544A1-20020912-P00008.png) 1980-12-18
DE2501124C3 true DE2501124C3 (de) 1981-08-27

Family

ID=9133484

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2501124A Expired DE2501124C3 (de) 1974-01-15 1975-01-14 Einrichtung zum Fokussieren eines Leselichtbündels auf einem teilweise reflektierenden oder teilweise transparenten Informationsträger

Country Status (7)

Country Link
US (1) US4023033A (US20020128544A1-20020912-P00008.png)
JP (1) JPS5712188B2 (US20020128544A1-20020912-P00008.png)
CA (1) CA1065054A (US20020128544A1-20020912-P00008.png)
DE (1) DE2501124C3 (US20020128544A1-20020912-P00008.png)
FR (1) FR2271590B1 (US20020128544A1-20020912-P00008.png)
GB (1) GB1493963A (US20020128544A1-20020912-P00008.png)
IT (1) IT1028311B (US20020128544A1-20020912-P00008.png)

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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
JP6440696B2 (ja) 2013-06-13 2018-12-19 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つの物体の方位を光学的に検出する検出器
JP2016529474A (ja) 2013-06-13 2016-09-23 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つの物体を光学的に検出する検出器
KR102252336B1 (ko) 2013-06-13 2021-05-14 바스프 에스이 광학 검출기 및 그의 제조 방법
JP6483127B2 (ja) 2013-08-19 2019-03-13 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つの対象物の位置を求めるための検出器
CN105637320B (zh) 2013-08-19 2018-12-14 巴斯夫欧洲公司 光学检测器
KR102397527B1 (ko) 2014-07-08 2022-05-13 바스프 에스이 하나 이상의 물체의 위치를 결정하기 위한 검출기
WO2016051323A1 (en) 2014-09-29 2016-04-07 Basf Se Detector for optically determining a position of at least one object
EP3230841B1 (en) 2014-12-09 2019-07-03 Basf Se Optical detector
KR102496245B1 (ko) 2015-01-30 2023-02-06 트리나미엑스 게엠베하 하나 이상의 물체의 광학적 검출을 위한 검출기
WO2016146725A1 (en) 2015-03-17 2016-09-22 Basf Se Optical data reader
US10955936B2 (en) 2015-07-17 2021-03-23 Trinamix Gmbh Detector for optically detecting at least one object
KR102539263B1 (ko) 2015-09-14 2023-06-05 트리나미엑스 게엠베하 적어도 하나의 물체의 적어도 하나의 이미지를 기록하는 카메라
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JP2019502905A (ja) 2015-11-25 2019-01-31 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個の物体を光学的に検出する検出器
KR20180132809A (ko) 2016-04-06 2018-12-12 트리나미엑스 게엠베하 하나 이상의 물체를 광학적으로 검출하기 위한 검출기
KR20190002488A (ko) 2016-04-28 2019-01-08 트리나미엑스 게엠베하 적어도 하나의 물체를 광학적으로 검출하기 위한 검출기
WO2017186851A1 (en) 2016-04-28 2017-11-02 Trinamix Gmbh Detector for optically detecting at least one object
US11211513B2 (en) 2016-07-29 2021-12-28 Trinamix Gmbh Optical sensor and detector for an optical detection
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US11860292B2 (en) 2016-11-17 2024-01-02 Trinamix Gmbh Detector and methods for authenticating at least one object
KR102502094B1 (ko) 2016-11-17 2023-02-21 트리나미엑스 게엠베하 적어도 하나의 피사체를 광학적으로 검출하기 위한 검출기
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CN110392844B (zh) 2017-03-16 2024-03-12 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
JP7204667B2 (ja) 2017-04-20 2023-01-16 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 光検出器
CN110998223B (zh) 2017-06-26 2021-10-29 特里纳米克斯股份有限公司 用于确定至少一个对像的位置的检测器
WO2019011803A1 (en) 2017-07-10 2019-01-17 Trinamix Gmbh DETECTOR FOR OPTICALLY DETECTING AT LEAST ONE OBJECT
JP7179051B2 (ja) 2017-08-28 2022-11-28 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つの物体の位置を決定するための検出器
JP2020531848A (ja) 2017-08-28 2020-11-05 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 少なくとも一つの幾何学情報を決定するためのレンジファインダ

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Also Published As

Publication number Publication date
FR2271590B1 (US20020128544A1-20020912-P00008.png) 1978-12-01
CA1065054A (en) 1979-10-23
JPS5712188B2 (US20020128544A1-20020912-P00008.png) 1982-03-09
GB1493963A (en) 1977-12-07
DE2501124B2 (US20020128544A1-20020912-P00008.png) 1980-12-18
JPS50104539A (US20020128544A1-20020912-P00008.png) 1975-08-18
IT1028311B (it) 1979-01-30
FR2271590A1 (US20020128544A1-20020912-P00008.png) 1975-12-12
DE2501124A1 (de) 1975-08-07
US4023033A (en) 1977-05-10

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