ES8205338A1 - Una disposicion de lente para enfocar un rayo optico sobre un disco de informacion de video - Google Patents

Una disposicion de lente para enfocar un rayo optico sobre un disco de informacion de video

Info

Publication number
ES8205338A1
ES8205338A1 ES504182A ES504182A ES8205338A1 ES 8205338 A1 ES8205338 A1 ES 8205338A1 ES 504182 A ES504182 A ES 504182A ES 504182 A ES504182 A ES 504182A ES 8205338 A1 ES8205338 A1 ES 8205338A1
Authority
ES
Spain
Prior art keywords
focusing
disc
housing
lens assembly
lens
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
ES504182A
Other languages
English (en)
Other versions
ES504182A0 (es
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
Publication of ES504182A0 publication Critical patent/ES504182A0/es
Publication of ES8205338A1 publication Critical patent/ES8205338A1/es
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
    • G11B7/08—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)

Abstract

DISPOSITIVO DE LENTE PARA UNA MAQUINA DE REGISTRO Y REPRODUCCION DE GRABACIONES EN VIDEO. COMPRENDE UNA UNIDAD (36) DE LENTE OBJETIVO SITUADA PARA EL MOVIMIENTO VERTICAL DENTRO DE SU ALOJAMIENTO. DENTRO DE LA CAJA (39) DE LA LENTE ESTAN MONTADOS UNO O MAS ELEMENTOS OPTICOS O LENTES DE ENFOQUE (35) DE LOS HACES OPTICOS DIRIGIDOS AL DISCO DE INFORMACION DE VIDEO. UNA CUBIERTA MULTIPLE (65) ES RETENIDA POR MEDIO DE TORNILLOS (67), SIRVIENDO DE CIERRE A LA UNIDAD DE LENTE OBJETIVO (36).
ES504182A 1980-10-20 1981-07-22 Una disposicion de lente para enfocar un rayo optico sobre un disco de informacion de video Expired ES8205338A1 (es)

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 (2)

Publication Number Publication Date
ES504182A0 ES504182A0 (es) 1982-05-16
ES8205338A1 true ES8205338A1 (es) 1982-05-16

Family

ID=22734421

Family Applications (1)

Application Number Title Priority Date Filing Date
ES504182A Expired ES8205338A1 (es) 1980-10-20 1981-07-22 Una disposicion de lente para enfocar un rayo optico sobre un disco de informacion de video

Country Status (10)

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

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
ES504182A0 (es) 1982-05-16
JPS5771535A (en) 1982-05-04
AU543367B2 (en) 1985-04-18
BR8104928A (pt) 1982-08-31
CA1149062A (en) 1983-06-28
NO812080L (no) 1982-04-21
US4422169A (en) 1983-12-20
EP0050367A1 (en) 1982-04-28
MX149708A (es) 1983-12-13
NO157556C (no) 1988-04-13
NO157556B (no) 1987-12-28
KR850001481B1 (ko) 1985-10-10
AU7249981A (en) 1982-04-29

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