NL7313362A - DEVICE FOR READING A FLAT RECORD EDRAGER WITH MATION SAVED IN OPTICAL FORM. - Google Patents

DEVICE FOR READING A FLAT RECORD EDRAGER WITH MATION SAVED IN OPTICAL FORM.

Info

Publication number
NL7313362A
NL7313362A NL7313362A NL7313362A NL7313362A NL 7313362 A NL7313362 A NL 7313362A NL 7313362 A NL7313362 A NL 7313362A NL 7313362 A NL7313362 A NL 7313362A NL 7313362 A NL7313362 A NL 7313362A
Authority
NL
Netherlands
Prior art keywords
edrager
mation
saved
reading
optical form
Prior art date
Application number
NL7313362A
Other languages
Dutch (nl)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL7313362A priority Critical patent/NL7313362A/en
Priority to DE19742445238 priority patent/DE2445238A1/en
Priority to GB4169574A priority patent/GB1482544A/en
Priority to FR7432684A priority patent/FR2247041B3/fr
Publication of NL7313362A publication Critical patent/NL7313362A/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
    • G11B7/0925—Electromechanical actuators for lens positioning
    • 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
NL7313362A 1973-09-28 1973-09-28 DEVICE FOR READING A FLAT RECORD EDRAGER WITH MATION SAVED IN OPTICAL FORM. NL7313362A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL7313362A NL7313362A (en) 1973-09-28 1973-09-28 DEVICE FOR READING A FLAT RECORD EDRAGER WITH MATION SAVED IN OPTICAL FORM.
DE19742445238 DE2445238A1 (en) 1973-09-28 1974-09-21 DEVICE FOR READING A FLAT RECORDING MEDIUM WITH INFORMATION STORED IN OPTICAL FORM
GB4169574A GB1482544A (en) 1973-09-28 1974-09-25 Reading optical-recordings
FR7432684A FR2247041B3 (en) 1973-09-28 1974-09-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7313362A NL7313362A (en) 1973-09-28 1973-09-28 DEVICE FOR READING A FLAT RECORD EDRAGER WITH MATION SAVED IN OPTICAL FORM.

Publications (1)

Publication Number Publication Date
NL7313362A true NL7313362A (en) 1975-04-02

Family

ID=19819695

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7313362A NL7313362A (en) 1973-09-28 1973-09-28 DEVICE FOR READING A FLAT RECORD EDRAGER WITH MATION SAVED IN OPTICAL FORM.

Country Status (4)

Country Link
DE (1) DE2445238A1 (en)
FR (1) FR2247041B3 (en)
GB (1) GB1482544A (en)
NL (1) NL7313362A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2052829B (en) * 1979-04-27 1983-01-12 Olympus Optical Co Apparatus for driving objective lens in tracking direction
NL8001617A (en) * 1980-03-19 1981-10-16 Philips Nv DEVICE FOR ELECTRODYNAMICALLY CONTROLLED SWIVING OF AN OPTICAL ELEMENT.

Also Published As

Publication number Publication date
FR2247041A1 (en) 1975-05-02
FR2247041B3 (en) 1977-07-08
DE2445238A1 (en) 1975-04-03
GB1482544A (en) 1977-08-10

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Legal Events

Date Code Title Description
BV The patent application has lapsed