FR2309888B1 - - Google Patents

Info

Publication number
FR2309888B1
FR2309888B1 FR7513620A FR7513620A FR2309888B1 FR 2309888 B1 FR2309888 B1 FR 2309888B1 FR 7513620 A FR7513620 A FR 7513620A FR 7513620 A FR7513620 A FR 7513620A FR 2309888 B1 FR2309888 B1 FR 2309888B1
Authority
FR
France
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
FR7513620A
Other versions
FR2309888A1 (fr
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
Priority to FR7513620A priority Critical patent/FR2309888A1/fr
Priority to JP51047616A priority patent/JPS5931776B2/ja
Priority to GB1711576A priority patent/GB1541596A/en
Priority to CA251,476A priority patent/CA1071330A/fr
Priority to DE19762619232 priority patent/DE2619232A1/de
Publication of FR2309888A1 publication Critical patent/FR2309888A1/fr
Application granted granted Critical
Publication of FR2309888B1 publication Critical patent/FR2309888B1/fr
Granted 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
FR7513620A 1975-04-30 1975-04-30 Dispositif optique de projection et lecteur optique comportant un tel dispositif Granted FR2309888A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7513620A FR2309888A1 (fr) 1975-04-30 1975-04-30 Dispositif optique de projection et lecteur optique comportant un tel dispositif
JP51047616A JPS5931776B2 (ja) 1975-04-30 1976-04-26 光学的読取装置
GB1711576A GB1541596A (en) 1975-04-30 1976-04-27 Optical focussing read-out device
CA251,476A CA1071330A (fr) 1975-04-30 1976-04-29 Dispositif de lecture optique a autofocalisation
DE19762619232 DE2619232A1 (de) 1975-04-30 1976-04-30 Optische projektionsvorrichtung und damit ausgestatteter optischer leser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7513620A FR2309888A1 (fr) 1975-04-30 1975-04-30 Dispositif optique de projection et lecteur optique comportant un tel dispositif

Publications (2)

Publication Number Publication Date
FR2309888A1 FR2309888A1 (fr) 1976-11-26
FR2309888B1 true FR2309888B1 (fr) 1977-11-10

Family

ID=9154695

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7513620A Granted FR2309888A1 (fr) 1975-04-30 1975-04-30 Dispositif optique de projection et lecteur optique comportant un tel dispositif

Country Status (5)

Country Link
JP (1) JPS5931776B2 (fr)
CA (1) CA1071330A (fr)
DE (1) DE2619232A1 (fr)
FR (1) FR2309888A1 (fr)
GB (1) GB1541596A (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4302830A (en) * 1978-05-10 1981-11-24 Olympus Optical Company Ltd. Optical information reading-out apparatus
NL8003729A (nl) * 1980-06-27 1982-01-18 Philips Nv Inrichting voor optische scherpstelling.
NL8004969A (nl) * 1980-09-02 1982-04-01 Philips Nv Inrichting voor optische scherpstelling.
DE3039425A1 (de) * 1980-10-18 1982-05-19 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar Einrichtung zur fotoelektrischen bestimmung der lage mindestens einer schaerfenebene eines bildes
JPS59168835U (ja) * 1983-04-27 1984-11-12 パイオニア株式会社 光学式記録情報読取装置
JPS6022743A (ja) * 1984-04-24 1985-02-05 Olympus Optical Co Ltd 光学的に情報を記録したデイスク再生装置のピツクアツプ
DE3544771A1 (de) * 1985-12-18 1987-06-19 Messerschmitt Boelkow Blohm Verfahren und vorrichtung zur abbildung eines gegenstandes auf einen detektor mit voneinander durch totraeume getrennten strahlungsempfindlichen bereichen
JPS62163978U (fr) * 1986-04-08 1987-10-17
US4835380A (en) * 1987-06-11 1989-05-30 U. S. Philips Corporation Scanning device for an optical recording and/or reproducing apparatus
JP2676371B2 (ja) * 1988-07-04 1997-11-12 パイオニア株式会社 ピックアップの高さ調整装置
NL8803055A (nl) * 1988-12-13 1990-07-02 Philips Nv Optische aftastinrichting, spiegelobjektief geschikt voor toepassing daarin en optisch inschrijf- en/of uitleesapparaat voorzien van deze aftastinrichting.
NL8803048A (nl) * 1988-12-13 1990-07-02 Philips Nv Optische aftastinrichting, spiegelobjektief geschikt voor toepassing daarin en optische inschrijf- en/of uitleesapparaat voorzien van de aftastinrichting.
DE4213556C2 (de) * 1992-04-24 1994-04-28 Max Planck Gesellschaft Einrichtung zur optischen Abtastung eines Aufzeichnungsträgers, insbesondere einer Phosphorspeicherplatte
CN109782962A (zh) * 2018-12-11 2019-05-21 中国科学院深圳先进技术研究院 一种投影交互方法、装置、系统及终端设备

Also Published As

Publication number Publication date
DE2619232A1 (de) 1976-11-11
GB1541596A (en) 1979-03-07
CA1071330A (fr) 1980-02-05
JPS5931776B2 (ja) 1984-08-04
FR2309888A1 (fr) 1976-11-26
JPS51134604A (en) 1976-11-22

Similar Documents

Publication Publication Date Title
FI762281A (fr)
FR2309888B1 (fr)
JPS51134195U (fr)
FR2312375B1 (fr)
FR2332799B1 (fr)
JPS5250208B2 (fr)
JPS5515928Y2 (fr)
JPS5229325Y2 (fr)
JPS571434Y2 (fr)
JPS5440266Y2 (fr)
JPS5245425U (fr)
CS174065B1 (fr)
JPS51106829U (fr)
CH595435A5 (fr)
CH599479A5 (fr)
CH607692A5 (fr)
CH607006A5 (fr)
CH606952A5 (fr)
CH606924A5 (fr)
CH604484A5 (fr)
CH604382A5 (fr)
CH603697A5 (fr)
CH602382A5 (fr)
CH602123A5 (fr)
CH595961A5 (fr)

Legal Events

Date Code Title Description
ST Notification of lapse