CA1177165A - Recepteur a tete optique - Google Patents

Recepteur a tete optique

Info

Publication number
CA1177165A
CA1177165A CA000414665A CA414665A CA1177165A CA 1177165 A CA1177165 A CA 1177165A CA 000414665 A CA000414665 A CA 000414665A CA 414665 A CA414665 A CA 414665A CA 1177165 A CA1177165 A CA 1177165A
Authority
CA
Canada
Prior art keywords
supporting member
hologram
optical head
head device
light beam
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
CA000414665A
Other languages
English (en)
Inventor
Chiaki Kojima
Hiroshi Ohki
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of CA1177165A publication Critical patent/CA1177165A/fr
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
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • 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
    • G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/16—Beam splitting or combining systems used as aids for focusing
    • 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
    • G11B7/08—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
    • G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking
    • 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
    • G11B7/0937—Piezoelectric actuators

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Head (AREA)
CA000414665A 1981-11-04 1982-11-02 Recepteur a tete optique Expired CA1177165A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP176749/81 1981-11-04
JP56176749A JPS5880139A (ja) 1981-11-04 1981-11-04 光学ヘツド

Publications (1)

Publication Number Publication Date
CA1177165A true CA1177165A (fr) 1984-10-30

Family

ID=16019131

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000414665A Expired CA1177165A (fr) 1981-11-04 1982-11-02 Recepteur a tete optique

Country Status (9)

Country Link
JP (1) JPS5880139A (fr)
KR (1) KR880002635B1 (fr)
AT (1) AT376510B (fr)
AU (1) AU556305B2 (fr)
CA (1) CA1177165A (fr)
DE (1) DE3240734C2 (fr)
FR (1) FR2519458B1 (fr)
GB (1) GB2109583B (fr)
NL (1) NL8204248A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8304212A (nl) * 1983-12-07 1984-10-01 Philips Nv Enkelvoudige collimatorlens met een asferisch oppervlak.
CA1258906A (fr) * 1985-04-22 1989-08-29 Hiroshi Oinoue Laser a semiconducteur pour tete optique
JPS61269233A (ja) * 1985-05-24 1986-11-28 Omron Tateisi Electronics Co 光情報処理装置
JPS61269235A (ja) * 1985-05-24 1986-11-28 Omron Tateisi Electronics Co 光情報処理装置
JPH0687099B2 (ja) * 1986-10-08 1994-11-02 富士通株式会社 レ−ザ光走査装置
CA2079620A1 (fr) * 1991-10-25 1993-04-26 Roeland M. T. Hekker Elements holographiques pour systeme d'enregistrement optique
US5272690A (en) * 1992-03-05 1993-12-21 International Business Machines Corporation Hologram element system
KR970703580A (ko) * 1995-03-29 1997-07-03 제이.지.에이. 롤페스 방사원, 검출기 및 그레이팅을 포함하는 광학유닛과, 광학유닛을 포함하는 스캐닝 장치(Optical unit comprising a radiation source, a detector and a grating, and scanning device including the optical unit)
GB0408383D0 (en) 2004-04-15 2004-05-19 Koninkl Philips Electronics Nv A radio network and a method of operating a radio network

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003059A (en) * 1974-02-07 1977-01-11 Canon Kabushiki Kaisha Optical recorder having focus controlling means
NL176315C (nl) * 1976-05-12 1985-03-18 Philips Nv Optische aftastinrichting.
NL7608561A (nl) * 1976-08-02 1978-02-06 Philips Nv Optische uitleeseenheid voor het aftasten van een registratiedrager voorzien van een stra- lingsreflekterende informatiestruktuur.
CA1091966A (fr) * 1976-10-15 1980-12-23 Chiaki Kojima Appareil de lecture de signaux enregistres sur support
US4245882A (en) * 1977-11-04 1981-01-20 Environmental Research Institute Of Michigan Doubly modulated on-axis thick hologram optical element
NL7713711A (nl) * 1977-12-12 1979-06-14 Philips Nv Optisch uitleeseenheid voor het uitlezen van een bewegende informatiedrager, in het bijzonder voor het uitlezen van een videoplaat.
JPS54109801A (en) * 1978-02-17 1979-08-28 Toshiba Corp Optical reader
JPS5573934A (en) * 1978-11-20 1980-06-04 Mansei Kogyo Kk Reader for optical information
JPS55163566A (en) * 1979-06-05 1980-12-19 Sony Corp Hologram lens and its production and optical system signal using this hologram lens
JPS5647933A (en) * 1979-09-25 1981-04-30 Sony Corp Optical signal head
JPS5680836A (en) * 1979-12-07 1981-07-02 Seiko Instr & Electronics Ltd Optical information reader

Also Published As

Publication number Publication date
NL8204248A (nl) 1983-06-01
FR2519458A1 (fr) 1983-07-08
DE3240734A1 (de) 1983-05-19
JPS5880139A (ja) 1983-05-14
AT376510B (de) 1984-11-26
AU9007182A (en) 1983-05-12
DE3240734C2 (de) 1995-11-30
KR880002635B1 (en) 1988-12-07
FR2519458B1 (fr) 1991-07-19
GB2109583B (en) 1985-07-17
ATA403082A (de) 1984-04-15
AU556305B2 (en) 1986-10-30
GB2109583A (en) 1983-06-02
KR840002561A (ko) 1984-07-02

Similar Documents

Publication Publication Date Title
US4449213A (en) Optical reading apparatus
US4804835A (en) Optical head having guide means with first and second polarizing surfaces
JP2676342B2 (ja) 光学式ピックアップの光学部品駆動装置
MY114141A (en) Objective lens driving device and optical pickup device employing the objective lens driving device.
US4467463A (en) Optical device for controlling a light beam
EP0121857A2 (fr) Dispositif de fixation et appareil de commande propre à un appareil de reproduction ou d'enregistrement de disques optiques et appareil de reproduction ou d'enregistrement comportant un tel dispositif ou un tel appareil
US4727529A (en) Pickup unit for use in an optical information record/reproduce system
CA1177165A (fr) Recepteur a tete optique
KR100230242B1 (ko) 고밀도 광기록방법 및 그 장치
JPS6220903Y2 (fr)
US5898653A (en) Optical head unit for use in an information read/write apparatus
JP2598394B2 (ja) 光学式走査ユニット
JP2002505789A (ja) 主レンズおよび補助レンズを有する光学走査装置
US5442490A (en) Objective lens driving apparatus
JP2739075B2 (ja) 光ヘッド装置
EP0472084A2 (fr) Tête optique
US4561079A (en) Support structure of an optical part
JPS6362810B2 (fr)
JPS6252724A (ja) 光学式ピツクアツプの傾き調整装置
JP2563768B2 (ja) 対物レンズ駆動装置
JP2700575B2 (ja) 光ピックアップ装置
US20040125736A1 (en) Optical head for recording and reading information and objective lens for use therein
JPH04313824A (ja) 光学式情報読取装置におけるレンズ駆動装置
JP2573571B2 (ja) 光磁気ヘツド装置
JPS62234242A (ja) 光学ヘツド装置

Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry