IT1007389B - ELECTRICALLY OPERATED LIGHT DEVIATION SYSTEM AND ITS APPLICATION TO A DEVICE FOR OPTICAL READING OF INFORMATION RECORDED ON A TRACK - Google Patents

ELECTRICALLY OPERATED LIGHT DEVIATION SYSTEM AND ITS APPLICATION TO A DEVICE FOR OPTICAL READING OF INFORMATION RECORDED ON A TRACK

Info

Publication number
IT1007389B
IT1007389B IT2051274A IT2051274A IT1007389B IT 1007389 B IT1007389 B IT 1007389B IT 2051274 A IT2051274 A IT 2051274A IT 2051274 A IT2051274 A IT 2051274A IT 1007389 B IT1007389 B IT 1007389B
Authority
IT
Italy
Prior art keywords
track
application
information recorded
electrically operated
optical reading
Prior art date
Application number
IT2051274A
Other languages
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 IT1007389B publication Critical patent/IT1007389B/en

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
    • 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
IT2051274A 1973-04-09 1974-04-08 ELECTRICALLY OPERATED LIGHT DEVIATION SYSTEM AND ITS APPLICATION TO A DEVICE FOR OPTICAL READING OF INFORMATION RECORDED ON A TRACK IT1007389B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7312667A FR2224828A1 (en) 1973-04-09 1973-04-09

Publications (1)

Publication Number Publication Date
IT1007389B true IT1007389B (en) 1976-10-30

Family

ID=9117614

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2051274A IT1007389B (en) 1973-04-09 1974-04-08 ELECTRICALLY OPERATED LIGHT DEVIATION SYSTEM AND ITS APPLICATION TO A DEVICE FOR OPTICAL READING OF INFORMATION RECORDED ON A TRACK

Country Status (4)

Country Link
JP (1) JPS5053055A (en)
DE (1) DE2417000A1 (en)
FR (1) FR2224828A1 (en)
IT (1) IT1007389B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50136007A (en) * 1974-04-15 1975-10-28
US4302830A (en) * 1978-05-10 1981-11-24 Olympus Optical Company Ltd. Optical information reading-out apparatus
FR2509077A1 (en) * 1981-07-03 1983-01-07 Thomson Csf Vibrating mirror for tracking on optically recorded disc - includes metallic body with flexible blade which oscillates in flexing mode
US4561023A (en) * 1983-08-16 1985-12-24 Xerox Corporation Dampening system for micro-deflector scanning beam modulator
US4685767A (en) * 1984-02-27 1987-08-11 Matsushita Electric Industrial Co., Ltd. Fine adjustment apparatus for optical system lens
DE3542154A1 (en) * 1984-12-01 1986-07-10 Ngk Spark Plug Co LIGHT DEFLECTOR
DE3500671A1 (en) * 1985-01-11 1986-07-17 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen READING DEVICE FOR OPTICAL SCANING OF INFORMATION RECORDED ON A MOVABLE DISK-SHAPED CARRIER
DE4122482B4 (en) * 1991-07-06 2004-10-07 Robert Bosch Gmbh Method and arrangement for swiveling a laser beam
DE10347898A1 (en) * 2003-10-15 2005-05-19 Carl Zeiss Light source beam guiding system, e.g. for sensor, has variable spacing and/or angle of two mirrors for varying deflection of outgoing light beam

Also Published As

Publication number Publication date
JPS5053055A (en) 1975-05-10
DE2417000A1 (en) 1974-10-17
FR2224828A1 (en) 1974-10-31

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