AU514607B2 - Videodisc player - Google Patents

Videodisc player

Info

Publication number
AU514607B2
AU514607B2 AU42648/78A AU4264878A AU514607B2 AU 514607 B2 AU514607 B2 AU 514607B2 AU 42648/78 A AU42648/78 A AU 42648/78A AU 4264878 A AU4264878 A AU 4264878A AU 514607 B2 AU514607 B2 AU 514607B2
Authority
AU
Australia
Prior art keywords
videodisc player
videodisc
player
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.)
Expired
Application number
AU42648/78A
Other versions
AU4264878A (en
Inventor
J. E Elliott
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.)
Discovision Associates
Original Assignee
Discovision Associates
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 Discovision Associates filed Critical Discovision Associates
Priority to AU42648/78A priority Critical patent/AU514607B2/en
Publication of AU4264878A publication Critical patent/AU4264878A/en
Application granted granted Critical
Publication of AU514607B2 publication Critical patent/AU514607B2/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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
AU42648/78A 1978-12-18 1978-12-18 Videodisc player Expired AU514607B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU42648/78A AU514607B2 (en) 1978-12-18 1978-12-18 Videodisc player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU42648/78A AU514607B2 (en) 1978-12-18 1978-12-18 Videodisc player

Related Child Applications (3)

Application Number Title Priority Date Filing Date
AU65096/80A Division AU519799B2 (en) 1980-12-01 1980-12-01 Videodisc playback system
AU65097/80A Division AU518855B2 (en) 1980-12-04 1980-12-04 Dynamic focus of videodisc objective lens
AU65095/80A Division AU517297B2 (en) 1980-12-04 1980-12-04 Light beam paths for reading video discs

Publications (2)

Publication Number Publication Date
AU4264878A AU4264878A (en) 1980-06-26
AU514607B2 true AU514607B2 (en) 1981-02-19

Family

ID=3729855

Family Applications (1)

Application Number Title Priority Date Filing Date
AU42648/78A Expired AU514607B2 (en) 1978-12-18 1978-12-18 Videodisc player

Country Status (1)

Country Link
AU (1) AU514607B2 (en)

Also Published As

Publication number Publication date
AU4264878A (en) 1980-06-26

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