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NO812080L - Linseanordning for videomaskin. - Google Patents

Linseanordning for videomaskin.

Info

Publication number
NO812080L
NO812080L NO812080A NO812080A NO812080L NO 812080 L NO812080 L NO 812080L NO 812080 A NO812080 A NO 812080A NO 812080 A NO812080 A NO 812080A NO 812080 L NO812080 L NO 812080L
Authority
NO
Norway
Prior art keywords
lens device
video machine
machine lens
video
machine
Prior art date
Application number
NO812080A
Other languages
English (en)
Other versions
NO157556B (no
NO157556C (no
Inventor
Richard L Wilkinson
George Vitale
Original Assignee
Discovision Ass
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 Ass filed Critical Discovision Ass
Publication of NO812080L publication Critical patent/NO812080L/no
Publication of NO157556B publication Critical patent/NO157556B/no
Publication of NO157556C publication Critical patent/NO157556C/no

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
    • 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
    • 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
    • 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
    • G11B7/0933—Details of stationary parts
    • 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
    • G11B7/0927—Electromechanical actuators for lens positioning for focusing only

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
NO812080A 1980-10-20 1981-06-18 Linseanordning for fokusering av en optisk straale mot en videoinformasjonsskive i en videomaskin. NO157556C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/198,697 US4422169A (en) 1980-10-20 1980-10-20 Lens assembly for a video recorder-playback machine

Publications (3)

Publication Number Publication Date
NO812080L true NO812080L (no) 1982-04-21
NO157556B NO157556B (no) 1987-12-28
NO157556C NO157556C (no) 1988-04-13

Family

ID=22734421

Family Applications (1)

Application Number Title Priority Date Filing Date
NO812080A NO157556C (no) 1980-10-20 1981-06-18 Linseanordning for fokusering av en optisk straale mot en videoinformasjonsskive i en videomaskin.

Country Status (10)

Country Link
US (1) US4422169A (no)
EP (1) EP0050367A1 (no)
JP (1) JPS5771535A (no)
KR (1) KR850001481B1 (no)
AU (1) AU543367B2 (no)
BR (1) BR8104928A (no)
CA (1) CA1149062A (no)
ES (1) ES8205338A1 (no)
MX (1) MX149708A (no)
NO (1) NO157556C (no)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594702A (en) * 1982-11-12 1986-06-10 Discovision Associates Fluid bearing for axially movable head
US4598989A (en) * 1982-12-23 1986-07-08 Konishiroku Photo Industry Co. Ltd. Camera
JPS6124820U (ja) * 1984-07-13 1986-02-14 パイオニア株式会社 レンズ駆動装置
US4686156A (en) * 1985-10-11 1987-08-11 Gte Service Corporation Coated cemented carbide cutting tool
JPH03100935A (ja) * 1989-09-12 1991-04-25 Hitachi Ltd 光ピツクアツプの防塵装置
TW239211B (en) * 1993-04-02 1995-01-21 Hyundai Electronics America Electromagnetic lens actuator for optical disk drive
CN1297975C (zh) * 2001-04-25 2007-01-31 皇家菲利浦电子有限公司 包含至少一个合成材料透镜的光学透镜系统
US6741405B1 (en) * 2003-03-27 2004-05-25 Exquisite Optical Technology Co., Ltd Hood for a digital image collecting lens

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3154627A (en) * 1960-08-09 1964-10-27 Parsons & Co Sir Howard G Control means for controlling static gas pressures in support means for a reflector of an optical telescope
US3081682A (en) * 1961-06-28 1963-03-19 Ibm Method and apparatus for obtaining and maintaining spacing of a transducer
GB1246416A (en) * 1969-04-18 1971-09-15 Central Electr Generat Board Improvements in or relating to television cameras
DE2259604B2 (de) * 1972-12-06 1981-02-05 Robert Bosch Gmbh, 7000 Stuttgart Luftlager für optische Systeme
NL164689C (nl) * 1975-03-10 1981-01-15 Philips Nv Optische focusseerinrichting voor het focusseren van een stralingsbundel.
US4006294A (en) * 1975-05-27 1977-02-01 Mca Disco-Vision, Inc. Transducer head assembly with fluid bearing and head height control system
NL7605374A (nl) * 1976-05-20 1977-11-22 Philips Nv Inrichting voor het met behulp van een stralen- bundel optisch uitlezen en/of beschrijven van een roterende plaat.
JPS6032265B2 (ja) * 1977-04-19 1985-07-26 ソニー株式会社 光学式再生装置の焦点制御装置
SU710069A1 (ru) * 1978-07-17 1980-01-15 Предприятие П/Я Р-6380 Устройство дл оптической фокусировки пучка лучей
US4349244A (en) * 1980-04-23 1982-09-14 Jenoptik Jena Gmbh High quality objective using air bearing

Also Published As

Publication number Publication date
EP0050367A1 (en) 1982-04-28
KR850001481B1 (ko) 1985-10-10
AU543367B2 (en) 1985-04-18
CA1149062A (en) 1983-06-28
NO157556B (no) 1987-12-28
AU7249981A (en) 1982-04-29
US4422169A (en) 1983-12-20
JPS5771535A (en) 1982-05-04
MX149708A (es) 1983-12-13
ES504182A0 (es) 1982-05-16
NO157556C (no) 1988-04-13
BR8104928A (pt) 1982-08-31
ES8205338A1 (es) 1982-05-16

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Legal Events

Date Code Title Description
MK1K Patent expired

Free format text: EXPIRED IN JUNE 2001