JPS6215933B2 - - Google Patents

Info

Publication number
JPS6215933B2
JPS6215933B2 JP56125480A JP12548081A JPS6215933B2 JP S6215933 B2 JPS6215933 B2 JP S6215933B2 JP 56125480 A JP56125480 A JP 56125480A JP 12548081 A JP12548081 A JP 12548081A JP S6215933 B2 JPS6215933 B2 JP S6215933B2
Authority
JP
Japan
Prior art keywords
optical axis
lens
drive mechanism
optical head
disk
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
JP56125480A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5826331A (ja
Inventor
Eiichi Tsukada
Toranosuke Izawa
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP12548081A priority Critical patent/JPS5826331A/ja
Publication of JPS5826331A publication Critical patent/JPS5826331A/ja
Publication of JPS6215933B2 publication Critical patent/JPS6215933B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
JP12548081A 1981-08-11 1981-08-11 光学ヘツド Granted JPS5826331A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12548081A JPS5826331A (ja) 1981-08-11 1981-08-11 光学ヘツド

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12548081A JPS5826331A (ja) 1981-08-11 1981-08-11 光学ヘツド

Publications (2)

Publication Number Publication Date
JPS5826331A JPS5826331A (ja) 1983-02-16
JPS6215933B2 true JPS6215933B2 (fr) 1987-04-09

Family

ID=14911128

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12548081A Granted JPS5826331A (ja) 1981-08-11 1981-08-11 光学ヘツド

Country Status (1)

Country Link
JP (1) JPS5826331A (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59193553A (ja) * 1983-04-19 1984-11-02 Nec Corp 光デイスクシステムにおけるトラツクアクセス装置
JPS59207439A (ja) * 1983-05-12 1984-11-24 Nec Corp 光デイスクシステムにおけるビ−ムアクセス装置
JPH0746426B2 (ja) * 1986-04-22 1995-05-17 京セラ株式会社 高速ランダムアクセス方法
JPH0254858A (ja) * 1988-08-19 1990-02-23 Fuji Electric Co Ltd イオンビーム中性化装置
JPH0254857A (ja) * 1988-08-19 1990-02-23 Fuji Electric Co Ltd イオンビーム中性化装置
JPH0254969A (ja) * 1988-08-19 1990-02-23 Fuji Electric Co Ltd Ｍｏｓ型半導体装置
JP2755611B2 (ja) * 1988-09-16 1998-05-20 三洋電機株式会社 溶融炭酸塩燃料電池
JP2680628B2 (ja) * 1988-09-16 1997-11-19 三洋電機株式会社 水素吸蔵合金電極及びその電極を備えた密閉型アルカリ蓄電池
JP2581784B2 (ja) * 1988-11-30 1997-02-12 富士通株式会社 光ディスク装置
JP2867360B2 (ja) * 1996-08-05 1999-03-08 株式会社日立製作所 光ディスク装置
JP2785815B2 (ja) * 1996-08-05 1998-08-13 株式会社日立製作所 光ディスク装置
JP2785816B2 (ja) * 1996-08-05 1998-08-13 株式会社日立製作所 光ディスク装置
JPH09128774A (ja) * 1996-09-03 1997-05-16 Hitachi Ltd 光ディスク装置
JP2867361B2 (ja) * 1996-09-03 1999-03-08 株式会社日立製作所 光ディスク装置用ピックアップ

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52152704A (en) * 1976-04-23 1977-12-19 Thomson Brandt Optical data disk reader
JPS53120403A (en) * 1977-03-25 1978-10-20 Philips Nv Optical scanner
JPS54146612A (en) * 1978-05-10 1979-11-16 Olympus Optical Co Ltd Optical information read device
JPS5555443A (en) * 1978-10-17 1980-04-23 Philips Nv Optical reading unit
JPS55150137A (en) * 1979-05-09 1980-11-21 Matsushita Electric Ind Co Ltd Recorder
JPS55153138A (en) * 1979-05-14 1980-11-28 Mitsubishi Electric Corp Optical pickup unit
JPS5794940A (en) * 1980-12-05 1982-06-12 Fujitsu Ltd Optical disk device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52152704A (en) * 1976-04-23 1977-12-19 Thomson Brandt Optical data disk reader
JPS53120403A (en) * 1977-03-25 1978-10-20 Philips Nv Optical scanner
JPS54146612A (en) * 1978-05-10 1979-11-16 Olympus Optical Co Ltd Optical information read device
JPS5555443A (en) * 1978-10-17 1980-04-23 Philips Nv Optical reading unit
JPS55150137A (en) * 1979-05-09 1980-11-21 Matsushita Electric Ind Co Ltd Recorder
JPS55153138A (en) * 1979-05-14 1980-11-28 Mitsubishi Electric Corp Optical pickup unit
JPS5794940A (en) * 1980-12-05 1982-06-12 Fujitsu Ltd Optical disk device

Also Published As

Publication number Publication date
JPS5826331A (ja) 1983-02-16

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