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
Links
- 230000003287 optical effect Effects 0.000 claims description 48
- 230000007246 mechanism Effects 0.000 claims description 25
- 238000006073 displacement reaction Methods 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 12
- 239000011295 pitch Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Automatic Focus Adjustment (AREA)
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 (de) | 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 (de) |
Families Citing this family (14)
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 |
JPH0254857A (ja) * | 1988-08-19 | 1990-02-23 | Fuji Electric Co Ltd | イオンビーム中性化装置 |
JPH0254858A (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 |
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 |
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 |
JP2581784B2 (ja) * | 1988-11-30 | 1997-02-12 | 富士通株式会社 | 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 |
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 |
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)
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 |
-
1981
- 1981-08-11 JP JP12548081A patent/JPS5826331A/ja active Granted
Patent Citations (7)
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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