FR2264355A2 - Stabilising device for flexible recording disc - has two runners with air channels from contact zone to suction turbine - Google Patents

Stabilising device for flexible recording disc - has two runners with air channels from contact zone to suction turbine

Info

Publication number
FR2264355A2
FR2264355A2 FR7408258A FR7408258A FR2264355A2 FR 2264355 A2 FR2264355 A2 FR 2264355A2 FR 7408258 A FR7408258 A FR 7408258A FR 7408258 A FR7408258 A FR 7408258A FR 2264355 A2 FR2264355 A2 FR 2264355A2
Authority
FR
France
Prior art keywords
runners
disc
contact zone
air channels
recording disc
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
FR7408258A
Other languages
French (fr)
Other versions
FR2264355B2 (en
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.)
Thales SA
Original Assignee
Thomson CSF 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
Priority claimed from FR7200789A external-priority patent/FR2167258A5/fr
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7408258A priority Critical patent/FR2264355A2/en
Publication of FR2264355A2 publication Critical patent/FR2264355A2/en
Application granted granted Critical
Publication of FR2264355B2 publication Critical patent/FR2264355B2/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
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/122—Flying-type heads, e.g. analogous to Winchester type in magnetic recording

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

The runners (22,200) are spaced by a distance slightly greater than the thickness of the disc (4), and the streams of air entrained by the disc form a cushion between the latter and each of the runners (22,200). The position of the disc (4) between the two air cushions can be adjusted by modifying the aerodynamic forces via an air channel in one of the runners (22,200). The optical read-out of the disc (4) is effected via an opening (223) in the main runner (22) and the auxiliary runner (200) is provided with an air channel (212) connected to an aspirator turbine controlling the air flow in the channel (212) to guide the disc (4).
FR7408258A 1972-01-11 1974-03-12 Stabilising device for flexible recording disc - has two runners with air channels from contact zone to suction turbine Granted FR2264355A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7408258A FR2264355A2 (en) 1972-01-11 1974-03-12 Stabilising device for flexible recording disc - has two runners with air channels from contact zone to suction turbine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7200789A FR2167258A5 (en) 1972-01-11 1972-01-11
FR7408258A FR2264355A2 (en) 1972-01-11 1974-03-12 Stabilising device for flexible recording disc - has two runners with air channels from contact zone to suction turbine

Publications (2)

Publication Number Publication Date
FR2264355A2 true FR2264355A2 (en) 1975-10-10
FR2264355B2 FR2264355B2 (en) 1978-01-06

Family

ID=26216831

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7408258A Granted FR2264355A2 (en) 1972-01-11 1974-03-12 Stabilising device for flexible recording disc - has two runners with air channels from contact zone to suction turbine

Country Status (1)

Country Link
FR (1) FR2264355A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0093799A3 (en) * 1982-05-12 1984-11-07 International Business Machines Corporation Magnetic transducer head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0093799A3 (en) * 1982-05-12 1984-11-07 International Business Machines Corporation Magnetic transducer head

Also Published As

Publication number Publication date
FR2264355B2 (en) 1978-01-06

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