JPS6222728U - - Google Patents

Info

Publication number
JPS6222728U
JPS6222728U JP1986103815U JP10381586U JPS6222728U JP S6222728 U JPS6222728 U JP S6222728U JP 1986103815 U JP1986103815 U JP 1986103815U JP 10381586 U JP10381586 U JP 10381586U JP S6222728 U JPS6222728 U JP S6222728U
Authority
JP
Japan
Prior art keywords
record carrier
objective lens
elastic bumper
focusing device
elastic
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.)
Pending
Application number
JP1986103815U
Other languages
English (en)
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 filed Critical
Publication of JPS6222728U publication Critical patent/JPS6222728U/ja
Pending 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
    • 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)

Description

【図面の簡単な説明】
第１図は本考案合焦装置の一実施例の断面図、
第２図はその平面図（一部保護カバーを切欠して
いる）、第３図はもう一つの実施例の対物レンズ
の断面図である。 １……光ビーム、２……ビデオデイスク、３，
２０……枠体、４……第１の軟鉄板、５……永久
磁石、６……第２の軟鉄板、７……軟鉄コア、８
……空隙、９，１４……軸受ブシユ、１０，１１
０……可動対物レンズ、１１，１１１……可動対
物レンズの自由端、１２，１１２……鏡筒、１３
……レンズ、１５，１１５……光軸、１６，１１
６……環状コイル、１７……コイルリード線、１
８，１９……接続ストリツプ、２１，２２……ブ
リツジ、２３……立上り縁、２４，２５……案内
カム、２６，２７……止め部、２８，１２８……
スリーブ、２９，１２９……環状フランジ、３０
，３１……凹所、３２……止めリング、３３……
保護カバー、３４……リム、３５，３６……ひだ
、３７，１３７……弾性体バンパ。

Claims (1)

  1. 【実用新案登録請求の範囲】 １ 放射線源から出た放射線ビームを記録担体、
    特に反射面を有する記録担体上に合焦させるため
    に、 ― 枠体と ― 自由端が記録担体の方を向いており、その
    自由端に保護手段が取付けられており、鏡筒内に
    光学レンズ系を具備している可動対物レンズと ― 上記可動対物レンズを枠体に対して光軸の
    方向に動かすための駆動系と を設けた合焦装置において保護手段が少なくと
    も１個の弾性体バンパ３７から成り、可動対物レ
    ンズ１０と記録担体２とが接触してもその可動対
    物レンズ１０と記録担体２との間に生ずる衝撃を
    吸収できるように構成したことを特徴とする合焦
    装置。 ２ 前記弾性体バンパを光軸と同軸の弾性体バン
    パリング１３７としたことを特徴とする実用新案
    登録請求の範囲第１項記載の合焦装置。 ３ 前記弾性体バンパリング１３７を１個の弾性
    体Ｏリングとしたことを特徴とする実用新案登録
    請求の範囲第２項記載の合焦装置。
JP1986103815U 1979-06-13 1986-07-08 Pending JPS6222728U (ja)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
JPS6222728U true JPS6222728U (ja) 1987-02-12

Family

ID=19833345

Family Applications (2)

Application Number Title Priority Date Filing Date
JP7846480A Pending JPS5637833A (en) 1979-06-13 1980-06-12 Focusing device
JP1986103815U Pending JPS6222728U (ja) 1979-06-13 1986-07-08

Family Applications Before (1)

Application Number Title Priority Date Filing Date
JP7846480A Pending JPS5637833A (en) 1979-06-13 1980-06-12 Focusing device

Country Status (9)

Country Link
US (1) US4252412A (ja)
EP (1) EP0021501B1 (ja)
JP (2) JPS5637833A (ja)
AT (1) AT368654B (ja)
AU (1) AU539045B2 (ja)
CA (1) CA1128790A (ja)
DE (1) DE3062719D1 (ja)
ES (1) ES8102394A1 (ja)
NL (1) NL7904618A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02133705A (ja) * 1988-11-12 1990-05-22 Silver Kogyo Kk 燃焼器具用芯

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5625335U (ja) * 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.
CA1249744A (en) * 1983-08-03 1989-02-07 Mitsuru Takashima Optical pickup having a driving unit
JPS60177439A (ja) * 1984-02-23 1985-09-11 Toshiba Corp 光学的情報処理装置
JPS61111029U (ja) * 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
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 (ja) * 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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02133705A (ja) * 1988-11-12 1990-05-22 Silver Kogyo Kk 燃焼器具用芯

Also Published As

Publication number Publication date
CA1128790A (en) 1982-08-03
AT368654B (de) 1982-10-25
ES492322A0 (es) 1980-12-16
US4252412A (en) 1981-02-24
ATA305180A (de) 1982-02-15
EP0021501B1 (en) 1983-04-13
AU5917180A (en) 1980-12-18
NL7904618A (nl) 1980-12-16
AU539045B2 (en) 1984-09-06
EP0021501A1 (en) 1981-01-07
ES8102394A1 (es) 1980-12-16
JPS5637833A (en) 1981-04-11
DE3062719D1 (en) 1983-05-19

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