FR2304139A1 - Dispositif permettant de focaliser, par voie optique un faisceau de rayons - Google Patents

Dispositif permettant de focaliser, par voie optique un faisceau de rayons

Info

Publication number
FR2304139A1
FR2304139A1 FR7606834A FR7606834A FR2304139A1 FR 2304139 A1 FR2304139 A1 FR 2304139A1 FR 7606834 A FR7606834 A FR 7606834A FR 7606834 A FR7606834 A FR 7606834A FR 2304139 A1 FR2304139 A1 FR 2304139A1
Authority
FR
France
Prior art keywords
rays
device allowing
optical focusing
allowing optical
focusing
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
FR7606834A
Other languages
English (en)
Other versions
FR2304139B1 (fr
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2304139A1 publication Critical patent/FR2304139A1/fr
Application granted granted Critical
Publication of FR2304139B1 publication Critical patent/FR2304139B1/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
    • 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
    • G11B7/0932—Details of sprung supports
    • 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
    • G02B27/40—Optical focusing aids
    • 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)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Automatic Focus Adjustment (AREA)
FR7606834A 1975-03-10 1976-03-10 Dispositif permettant de focaliser, par voie optique un faisceau de rayons Granted FR2304139A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7502803.A NL164689C (nl) 1975-03-10 1975-03-10 Optische focusseerinrichting voor het focusseren van een stralingsbundel.

Publications (2)

Publication Number Publication Date
FR2304139A1 true FR2304139A1 (fr) 1976-10-08
FR2304139B1 FR2304139B1 (fr) 1980-07-04

Family

ID=19823333

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7606834A Granted FR2304139A1 (fr) 1975-03-10 1976-03-10 Dispositif permettant de focaliser, par voie optique un faisceau de rayons

Country Status (15)

Country Link
US (1) US4021101A (fr)
JP (3) JPS51113706A (fr)
AT (1) AT347711B (fr)
AU (1) AU501590B2 (fr)
CA (1) CA1073101A (fr)
CH (1) CH601887A5 (fr)
DE (1) DE2608035C2 (fr)
DK (1) DK96376A (fr)
ES (1) ES445863A1 (fr)
FR (1) FR2304139A1 (fr)
GB (1) GB1536203A (fr)
IT (1) IT1057678B (fr)
NL (1) NL164689C (fr)
NO (1) NO760795L (fr)
SE (1) SE412135B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497377A1 (fr) * 1980-12-29 1982-07-02 Thomson Csf Dispositif d'exploration optique d'un support d'information

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
JPS54115943U (fr) * 1978-02-02 1979-08-14
US4194811A (en) * 1978-05-03 1980-03-25 The United States Of America As Represented By The Secretary Of The Air Force Remotely controlled electromagnetic optical focusing assembly
US4251492A (en) * 1978-06-07 1981-02-17 Ciba-Geigy Corporation Purification process
NL7904618A (nl) * 1979-06-13 1980-12-16 Philips Nv Optische focusseerinrichting.
GB2060927B (en) * 1979-07-24 1984-02-01 Universal Pioneer Corp Signal reading device for optical discs
NL8004380A (nl) * 1980-07-31 1982-03-01 Philips Nv Optische inrichting voor het met een stralingsbundel inschrijven en/of uitlezen van registratiesporen.
JPS5736442A (ja) * 1980-08-11 1982-02-27 Toshiba Corp Kogakujohosaiseisochi
US4303324A (en) * 1980-10-06 1981-12-01 Eastman Kodak Company Annular piezoelectric plastic bender lens motor
US4422169A (en) * 1980-10-20 1983-12-20 Discovision Associates Lens assembly for a video recorder-playback machine
JPS57120240A (en) * 1981-01-16 1982-07-27 Sony Corp Optical disk player
JPS57161134U (fr) * 1981-03-31 1982-10-09
JPS57176543A (en) * 1981-04-20 1982-10-29 Sony Corp Optical type track scanner
NL8105072A (nl) * 1981-11-10 1983-06-01 Philips Nv Electro-optische inrichting.
FR2521377A1 (fr) * 1982-01-28 1983-08-12 Ricoh Kk Appareil d'enregistrement et de lecture optique
JPS58177532A (ja) * 1982-04-13 1983-10-18 Mitsubishi Electric Corp 光ビ−ム制御機構
JPS58179947A (ja) * 1982-04-15 1983-10-21 Olympus Optical Co Ltd 光情報再生装置における合焦検出方式
NL8202451A (nl) * 1982-06-17 1984-01-16 Philips Nv Optische inrichting.
DE3346552A1 (de) * 1982-12-23 1984-06-28 Konishiroku Photo Industry Co., Ltd., Tokio/Tokyo Kamera
US4504935A (en) * 1983-02-14 1985-03-12 U.S. Philips Corporation Electrodynamic focus and radial slide drive for an optical disc system
JPH042420Y2 (fr) * 1984-09-28 1992-01-28
US4671656A (en) * 1985-03-20 1987-06-09 Midac Corporation Adjustment for reflective surfaces in interferometers
US5001694A (en) * 1986-05-06 1991-03-19 Pencom International Corp. Tracking and focus actuator for a holographic optical head
JP2002500800A (ja) * 1998-03-26 2002-01-08 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 第１及び第２のレンズ部を有する光学的走査装置
TWM295268U (en) * 2006-01-13 2006-08-01 Yung-Yu Juang Focus module
EP4137856A1 (fr) 2021-08-19 2023-02-22 Leica Microsystems CMS GmbH Ensemble optique doté d'une unité de lentille mobile

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB979727A (en) * 1962-05-30 1965-01-06 George Andrew Douglas Gordon Improvements in microscopes
US3861786A (en) * 1973-05-17 1975-01-21 Teletype Corp System for mounting an optical lens in a holder for limited movement along a fixed axis

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497377A1 (fr) * 1980-12-29 1982-07-02 Thomson Csf Dispositif d'exploration optique d'un support d'information
EP0055645A2 (fr) * 1980-12-29 1982-07-07 Thomson-Csf Dispositif d'exploration optique d'un support d'information
EP0055645A3 (en) * 1980-12-29 1982-08-11 Thomson-Csf Optical pick-up device of a record carrier

Also Published As

Publication number Publication date
JPH0229526Y2 (fr) 1990-08-08
DE2608035C2 (de) 1983-06-01
AT347711B (de) 1979-01-10
JPS5756340Y2 (fr) 1982-12-04
SE7602603L (sv) 1976-09-13
GB1536203A (en) 1978-12-20
NL164689C (nl) 1981-01-15
NL164689B (nl) 1980-08-15
AU501590B2 (en) 1979-06-21
CA1073101A (fr) 1980-03-04
DE2608035A1 (de) 1976-09-23
NO760795L (fr) 1976-09-13
US4021101A (en) 1977-05-03
JPS51113706A (en) 1976-10-07
NL7502803A (nl) 1976-09-14
ATA168276A (de) 1978-05-15
FR2304139B1 (fr) 1980-07-04
JPS5451808U (fr) 1979-04-10
IT1057678B (it) 1982-03-30
AU1184576A (en) 1977-09-15
ES445863A1 (es) 1977-05-01
JPS57161139U (fr) 1982-10-09
CH601887A5 (fr) 1978-07-14
SE412135B (sv) 1980-02-18
DK96376A (da) 1976-09-11

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Legal Events

Date Code Title Description
DR Decision of the appeal court due to an appeal at law against decisions of the director of the inpi, except decision of lapse
ST Notification of lapse