JPS6418423U - - Google Patents

Info

Publication number
JPS6418423U
JPS6418423U JP1987114012U JP11401287U JPS6418423U JP S6418423 U JPS6418423 U JP S6418423U JP 1987114012 U JP1987114012 U JP 1987114012U JP 11401287 U JP11401287 U JP 11401287U JP S6418423 U JPS6418423 U JP S6418423U
Authority
JP
Japan
Prior art keywords
holder
optical
objective lens
light flux
light
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
JP1987114012U
Other languages
English (en)
Other versions
JP2518213Y2 (ja
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
Priority to JP1987114012U priority Critical patent/JP2518213Y2/ja
Priority to EP88306774A priority patent/EP0300820B1/en
Priority to CA000572803A priority patent/CA1314985C/en
Priority to DE8888306774T priority patent/DE3870531D1/de
Priority to US07/222,764 priority patent/US4861139A/en
Publication of JPS6418423U publication Critical patent/JPS6418423U/ja
Application granted granted Critical
Publication of JP2518213Y2 publication Critical patent/JP2518213Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Landscapes

  • Optical Head (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Description

【図面の簡単な説明】
第１図はこの考案の一実施例による光学式ヘツ
ドの円筒状ホルダ固定装置を示す断面図、第２図
は第１図のＡからみた斜視図、第３図は第１図の
Ａ部の詳細図、第４図は従来の光学式ヘツドの円
筒状ホルダ固定装置の斜視図、第５図は第４図の
Ｂ部の詳細図である。 図において、１は筐体、３はホルダ、４は固定
ねじ、６はねじ穴、７は光源、８はアクチエータ
、９は対物レンズ、１０は媒体、１１は光検出器
、１２，１３，１４は光学素子である。なお、図
中、同一符号は同一又は相当部分を示す。

Claims (1)

    【実用新案登録請求の範囲】
  1. 光源と、この光源からの光束を光学的に記録、
    再生できる媒体に集光する対物レンズと、この対
    物レンズを駆動する手段と、前記光束を前記対物
    レンズへ導く光学手段及び前記媒体からの反射光
    束を受光し再生信号及び制御信号を得るための光
    検出器と、この光検出器に反射光束を集光させる
    ための光学素子及びこの光学素子が固定され光軸
    方向に移動可能なホルダと、前記光学手段及び前
    記ホルダを収納する筐体とを備えた光学式ヘツド
    において、前記筐体の前記ホルダの移動可能な方
    向と略直角方向に前記ホルダと対向する側に所定
    の厚みの底部を残してねじ穴を設け、前記ねじ穴
    に固定ねじを螺合したことを特徴とする光学式ヘ
    ツド。
JP1987114012U 1987-07-24 1987-07-24 光学式ヘッド Expired - Lifetime JP2518213Y2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1987114012U JP2518213Y2 (ja) 1987-07-24 1987-07-24 光学式ヘッド
EP88306774A EP0300820B1 (en) 1987-07-24 1988-07-22 Optical head
CA000572803A CA1314985C (en) 1987-07-24 1988-07-22 Optical head
DE8888306774T DE3870531D1 (de) 1987-07-24 1988-07-22 Optischer kopf.
US07/222,764 US4861139A (en) 1987-07-24 1988-07-22 Apparatus for positioning an optical element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987114012U JP2518213Y2 (ja) 1987-07-24 1987-07-24 光学式ヘッド

Publications (2)

Publication Number Publication Date
JPS6418423U true JPS6418423U (ja) 1989-01-30
JP2518213Y2 JP2518213Y2 (ja) 1996-11-27

Family

ID=14626842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987114012U Expired - Lifetime JP2518213Y2 (ja) 1987-07-24 1987-07-24 光学式ヘッド

Country Status (5)

Country Link
US (1) US4861139A (ja)
EP (1) EP0300820B1 (ja)
JP (1) JP2518213Y2 (ja)
CA (1) CA1314985C (ja)
DE (1) DE3870531D1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03209411A (ja) * 1989-09-19 1991-09-12 Asahi Optical Co Ltd 光学部品の保持構造
JPH03106528U (ja) * 1990-02-16 1991-11-05

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60163515U (ja) * 1984-04-04 1985-10-30 パイオニア株式会社 光学式情報読取装置におけるピツクアツプ装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5842965Y2 (ja) * 1978-04-24 1983-09-29 旭光学工業株式会社 レンズ鏡胴
DE7901401U1 (de) * 1979-01-19 1980-07-03 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar Mikroskopobjektivfassung
US4351587A (en) * 1979-03-05 1982-09-28 Olympus Optical Company, Ltd. Apparatus for positioning eyepiece of endoscope
FR2465961A2 (fr) * 1979-09-26 1981-03-27 Omia Dispositif de reglage de debit d'air, notamment pour cabines de peinture
US4330176A (en) * 1979-10-18 1982-05-18 Canon Kabushiki Kaisha Lens assembly for enabling change of image position in a camera
US4437177A (en) * 1979-11-12 1984-03-13 Nippon Telegraph & Telephone Public Corporation Small-sized video or audio pickup device having a beam deflector disposed within a focusing device support
JPS5990241A (ja) * 1982-11-12 1984-05-24 Hitachi Ltd 光源装置
JPS59231746A (ja) * 1983-06-14 1984-12-26 Matsushita Electric Ind Co Ltd 光ピツクアツプ
JPS60199644A (ja) * 1984-03-23 1985-10-09 松下電工株式会社 複層ガラス
JPS60142829A (ja) * 1984-12-07 1985-07-29 株式会社日立製作所 電気掃除機
JPS61265732A (ja) * 1985-05-20 1986-11-25 Ricoh Co Ltd 対物レンズの取付部
JPH06242116A (ja) * 1993-02-18 1994-09-02 Masanao Makino Ｐｇｌ−１類似物質又は該物質に対する抗体の免疫学的測定方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60163515U (ja) * 1984-04-04 1985-10-30 パイオニア株式会社 光学式情報読取装置におけるピツクアツプ装置

Also Published As

Publication number Publication date
EP0300820A3 (en) 1989-11-29
EP0300820A2 (en) 1989-01-25
US4861139A (en) 1989-08-29
CA1314985C (en) 1993-03-23
EP0300820B1 (en) 1992-04-29
JP2518213Y2 (ja) 1996-11-27
DE3870531D1 (de) 1992-06-04

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