JPS51134604A - Optical reader - Google Patents

Optical reader

Info

Publication number
JPS51134604A
JPS51134604A JP51047616A JP4761676A JPS51134604A JP S51134604 A JPS51134604 A JP S51134604A JP 51047616 A JP51047616 A JP 51047616A JP 4761676 A JP4761676 A JP 4761676A JP S51134604 A JPS51134604 A JP S51134604A
Authority
JP
Japan
Prior art keywords
optical reader
reader
optical
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.)
Granted
Application number
JP51047616A
Other languages
Japanese (ja)
Other versions
JPS5931776B2 (en
Inventor
Piyuushiyu Kuroodo
Pieeru Rakotsuto Jiyan
Ru Karubenetsuku Furansowa
Buriko Kuroodo
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 JPS51134604A publication Critical patent/JPS51134604A/en
Publication of JPS5931776B2 publication Critical patent/JPS5931776B2/en
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
JP51047616A 1975-04-30 1976-04-26 optical reader Expired JPS5931776B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7513620A FR2309888A1 (en) 1975-04-30 1975-04-30 OPTICAL PROJECTION DEVICE AND OPTICAL READER INCLUDING SUCH A DEVICE

Publications (2)

Publication Number Publication Date
JPS51134604A true JPS51134604A (en) 1976-11-22
JPS5931776B2 JPS5931776B2 (en) 1984-08-04

Family

ID=9154695

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51047616A Expired JPS5931776B2 (en) 1975-04-30 1976-04-26 optical reader

Country Status (5)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6022743A (en) * 1984-04-24 1985-02-05 Olympus Optical Co Ltd Pickup for disk reproducer containing information recorded optically

Families Citing this family (13)

* 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 (en) * 1980-06-27 1982-01-18 Philips Nv DEVICE FOR OPTICAL FOCUSING.
NL8004969A (en) * 1980-09-02 1982-04-01 Philips Nv DEVICE FOR OPTICAL FOCUSING.
DE3039425A1 (en) * 1980-10-18 1982-05-19 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar DEVICE FOR PHOTOELECTRICALLY DETERMINING THE POSITION OF AT LEAST ONE FOCUS OF AN IMAGE
JPS59168835U (en) * 1983-04-27 1984-11-12 パイオニア株式会社 Optical recording information reading device
DE3544771A1 (en) * 1985-12-18 1987-06-19 Messerschmitt Boelkow Blohm Method and device for imaging an object on a detector having radiation-sensitive regions separated from one another by dead spaces
JPS62163978U (en) * 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 (en) * 1988-07-04 1997-11-12 パイオニア株式会社 Pickup height adjuster
NL8803048A (en) * 1988-12-13 1990-07-02 Philips Nv OPTICAL SCANNING DEVICE, MIRROR-LIKE SUITABLE FOR USE THEREIN, AND OPTICAL ENTRY AND / OR READING EQUIPMENT PROVIDED WITH THE SCANNING DEVICE.
NL8803055A (en) * 1988-12-13 1990-07-02 Philips Nv OPTICAL SCANNER, MIRROR-LIKE SUITABLE FOR APPLICATION THEREIN, AND OPTICAL REGISTER AND / OR READER EQUIPPED WITH THIS SCANNER.
DE4213556C2 (en) * 1992-04-24 1994-04-28 Max Planck Gesellschaft Device for the optical scanning of a record carrier, in particular a phosphor storage disk
CN109782962A (en) * 2018-12-11 2019-05-21 中国科学院深圳先进技术研究院 A kind of projection interactive method, device, system and terminal device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6022743A (en) * 1984-04-24 1985-02-05 Olympus Optical Co Ltd Pickup for disk reproducer containing information recorded optically
JPH0555934B2 (en) * 1984-04-24 1993-08-18 Olympus Optical Co

Also Published As

Publication number Publication date
FR2309888A1 (en) 1976-11-26
DE2619232A1 (en) 1976-11-11
CA1071330A (en) 1980-02-05
FR2309888B1 (en) 1977-11-10
GB1541596A (en) 1979-03-07
JPS5931776B2 (en) 1984-08-04

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