AT368654B - Optische fokussiervorrichtung - Google Patents

Optische fokussiervorrichtung

Info

Publication number
AT368654B
AT368654B AT0305180A AT305180A AT368654B AT 368654 B AT368654 B AT 368654B AT 0305180 A AT0305180 A AT 0305180A AT 305180 A AT305180 A AT 305180A AT 368654 B AT368654 B AT 368654B
Authority
AT
Austria
Prior art keywords
focusing device
optical focusing
optical
focusing
Prior art date
Application number
AT0305180A
Other languages
English (en)
Other versions
ATA305180A (de
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of ATA305180A publication Critical patent/ATA305180A/de
Application granted granted Critical
Publication of AT368654B publication Critical patent/AT368654B/de

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
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/02—Objectives

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Lens Barrels (AREA)
AT0305180A 1979-06-13 1980-06-10 Optische fokussiervorrichtung AT368654B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7904618A NL7904618A (nl) 1979-06-13 1979-06-13 Optische focusseerinrichting.

Publications (2)

Publication Number Publication Date
ATA305180A ATA305180A (de) 1982-02-15
AT368654B true AT368654B (de) 1982-10-25

Family

ID=19833345

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0305180A AT368654B (de) 1979-06-13 1980-06-10 Optische fokussiervorrichtung

Country Status (9)

Country Link
US (1) US4252412A (de)
EP (1) EP0021501B1 (de)
JP (2) JPS5637833A (de)
AT (1) AT368654B (de)
AU (1) AU539045B2 (de)
CA (1) CA1128790A (de)
DE (1) DE3062719D1 (de)
ES (1) ES492322A0 (de)
NL (1) NL7904618A (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5625335U (de) * 1979-07-31 1981-03-07
NL8004380A (nl) * 1980-07-31 1982-03-01 Philips Nv Optische inrichting voor het met een stralingsbundel inschrijven en/of uitlezen van registratiesporen.
JPS57120240A (en) * 1981-01-16 1982-07-27 Sony Corp Optical disk player
NL8202451A (nl) * 1982-06-17 1984-01-16 Philips Nv Optische inrichting.
US4643522A (en) * 1983-08-03 1987-02-17 Sony Corporation Optical pickup having a driving unit for moving objective lens
JPS60177439A (ja) * 1984-02-23 1985-09-11 Toshiba Corp 光学的情報処理装置
JPS61111029U (de) * 1984-12-24 1986-07-14
US5001694A (en) * 1986-05-06 1991-03-19 Pencom International Corp. Tracking and focus actuator for a holographic optical head
US4816607A (en) * 1987-03-02 1989-03-28 Uop Inc. Integrated etherification process with recycle post treatment
JPH0254433A (ja) * 1988-08-18 1990-02-23 Matsushita Electric Ind Co Ltd 光学式ピックアップ
JPH0650167B2 (ja) * 1988-11-12 1994-06-29 シルバー株式会社 燃焼器具用芯
JPH03100935A (ja) * 1989-09-12 1991-04-25 Hitachi Ltd 光ピツクアツプの防塵装置
JP2723995B2 (ja) * 1989-10-05 1998-03-09 株式会社リコー 光ディスクドライブ装置
US5485437A (en) * 1993-02-05 1996-01-16 Discovision Associates Shock-resistant, electrostatically actuated pick-up for optical recording and playback
FR2763145B1 (fr) 1997-05-07 1999-07-30 Centre Nat Rech Scient Dispositif a cristaux liquides comprenant des moyens d'ancrage perfectionnes sur au moins une plaque de confinement donnant une orientation degeneree sans memoire
GB2352078A (en) * 1999-07-08 2001-01-17 Ford Motor Co Focusing/tracking limit bumpers for an optical pickup

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2256245A (en) * 1938-03-24 1941-09-16 Leitz Ernst Gmbh Microscope
DE939170C (de) * 1952-12-09 1956-02-16 Optische Werke C Reichert Ag Praeparatschuetzende Vorrichtung fuer automatische Vorfokussierung von Mikroskopen
DE925615C (de) * 1953-05-09 1955-03-24 Leitz Ernst Gmbh Frontlinsenfassung mit konischer Ausnehmung fuer Mikroskopobjektive
DE1029590B (de) * 1954-12-16 1958-05-08 Zeiss Carl Fa Mikroskopobjektiv in Korrektionsfassung
US3594068A (en) * 1968-04-04 1971-07-20 Schneider Co Optische Werke Shock absorber for adjustable optical components
DD96790A1 (de) * 1972-02-10 1973-04-12
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
NL164689C (nl) * 1975-03-10 1981-01-15 Philips Nv Optische focusseerinrichting voor het focusseren van een stralingsbundel.
JPS5945963B2 (ja) * 1976-03-02 1984-11-09 ミノルタ株式会社 レンズ鏡胴

Also Published As

Publication number Publication date
EP0021501A1 (de) 1981-01-07
NL7904618A (nl) 1980-12-16
ES8102394A1 (es) 1980-12-16
CA1128790A (en) 1982-08-03
AU539045B2 (en) 1984-09-06
AU5917180A (en) 1980-12-18
DE3062719D1 (en) 1983-05-19
ES492322A0 (es) 1980-12-16
EP0021501B1 (de) 1983-04-13
ATA305180A (de) 1982-02-15
JPS5637833A (en) 1981-04-11
US4252412A (en) 1981-02-24
JPS6222728U (de) 1987-02-12

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Legal Events

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ELJ Ceased due to non-payment of the annual fee