FR2301879B1 - - Google Patents

Info

Publication number
FR2301879B1
FR2301879B1 FR7605101A FR7605101A FR2301879B1 FR 2301879 B1 FR2301879 B1 FR 2301879B1 FR 7605101 A FR7605101 A FR 7605101A FR 7605101 A FR7605101 A FR 7605101A FR 2301879 B1 FR2301879 B1 FR 2301879B1
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
FR7605101A
Other versions
FR2301879A1 (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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of FR2301879A1 publication Critical patent/FR2301879A1/fr
Application granted granted Critical
Publication of FR2301879B1 publication Critical patent/FR2301879B1/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
    • 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
FR7605101A 1975-02-24 1976-02-24 Appareil de balayage par faisceau lumineux d'un support d'enregistrement de signaux Granted FR2301879A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50022590A JPS51149004A (en) 1975-02-24 1975-02-24 Optical apparatus

Publications (2)

Publication Number Publication Date
FR2301879A1 FR2301879A1 (fr) 1976-09-17
FR2301879B1 true FR2301879B1 (fr) 1979-04-20

Family

ID=12087055

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7605101A Granted FR2301879A1 (fr) 1975-02-24 1976-02-24 Appareil de balayage par faisceau lumineux d'un support d'enregistrement de signaux

Country Status (9)

Country Link
US (1) US4058834A (fr)
JP (1) JPS51149004A (fr)
AT (1) AT346927B (fr)
AU (1) AU497045B2 (fr)
CA (1) CA1182914A (fr)
DE (1) DE2607275C3 (fr)
FR (1) FR2301879A1 (fr)
GB (1) GB1526333A (fr)
NL (1) NL7601897A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5398802A (en) * 1977-02-09 1978-08-29 Mitsubishi Electric Corp Optical reproducer
US4334302A (en) * 1980-06-02 1982-06-08 Peppers James M Flexible recording disc stabilizing and guidance system
WO1984003985A1 (fr) * 1983-04-04 1984-10-11 Storage Technology Partners Assemblage de chariot a support guide
US5327417A (en) * 1991-09-27 1994-07-05 Nsk Ltd. Optical disk drive and read/write apparatus
KR940006129B1 (ko) * 1991-12-24 1994-07-06 삼성전자 주식회사 양면디스크 재생장치
GB2323676B (en) * 1997-03-26 1999-03-17 Samsung Electronics Co Ltd Master disk exposure device using optical fiber
SG87758A1 (en) * 1997-07-04 2002-04-16 Michael Anh Nguyen Off-axis optical pickup mechanism for dual-sided optical storage discs
US20070053276A1 (en) * 2005-09-08 2007-03-08 Hanks D M Optics for double-sided media
US7890968B2 (en) * 2007-01-26 2011-02-15 Hewlett-Packard Development Company, L.P. Optical disc device having two optomechanical mechanisms

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3944727A (en) * 1972-10-24 1976-03-16 Mca Discovision, Inc. Video disc player with movable mirror for directing light beam onto reflective disc
JPS5548282B2 (fr) * 1973-06-20 1980-12-05
US3932701A (en) * 1975-01-29 1976-01-13 Zenith Radio Corporation Self-compensating focus system for a reflective video disc
US3959581A (en) * 1975-01-29 1976-05-25 Zenith Radio Corporation Self-compensating focus system for optical video playback device

Also Published As

Publication number Publication date
US4058834A (en) 1977-11-15
DE2607275B2 (de) 1978-01-05
DE2607275C3 (de) 1978-09-28
CA1182914A (fr) 1985-02-19
FR2301879A1 (fr) 1976-09-17
AU497045B2 (en) 1978-11-23
ATA127276A (de) 1978-04-15
DE2607275A1 (de) 1976-09-02
JPS51149004A (en) 1976-12-21
AU1124276A (en) 1977-09-01
JPS552847B2 (fr) 1980-01-22
NL7601897A (nl) 1976-08-26
AT346927B (de) 1978-12-11
GB1526333A (en) 1978-09-27

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Legal Events

Date Code Title Description
ST Notification of lapse