JPH01154513U - - Google Patents
Info
- Publication number
- JPH01154513U JPH01154513U JP4918988U JP4918988U JPH01154513U JP H01154513 U JPH01154513 U JP H01154513U JP 4918988 U JP4918988 U JP 4918988U JP 4918988 U JP4918988 U JP 4918988U JP H01154513 U JPH01154513 U JP H01154513U
- Authority
- JP
- Japan
- Prior art keywords
- wavelength
- pregroove
- optical disk
- pits
- optical
- 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
Links
- 230000003287 optical effect Effects 0.000 claims description 12
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Optical Recording Or Reproduction (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4918988U JPH01154513U (enExample) | 1988-04-12 | 1988-04-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4918988U JPH01154513U (enExample) | 1988-04-12 | 1988-04-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01154513U true JPH01154513U (enExample) | 1989-10-24 |
Family
ID=31275305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4918988U Pending JPH01154513U (enExample) | 1988-04-12 | 1988-04-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01154513U (enExample) |
-
1988
- 1988-04-12 JP JP4918988U patent/JPH01154513U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2006141A1 (en) | Optical recording element and optical data retrieval system for use with the same | |
| DE3784326D1 (de) | Spurfolgesysteme fuer optische plattenspieler. | |
| EP0363022A3 (en) | On/off-track signal in optical information recording and/or reproducing apparatus | |
| CA2005341A1 (en) | Recording and/or reproduction apparatus of an optical disc | |
| DE69019026D1 (de) | Optisches Aufzeichnungs- und Wiedergabesystem mit doppelter Lichtquelle. | |
| JPH01154513U (enExample) | ||
| JPS58165794U (ja) | 光学式情報記憶媒体 | |
| JP2554514Y2 (ja) | 光記録媒体 | |
| JPS5512594A (en) | Information reproducing disc | |
| JPS58165742U (ja) | 光学式情報記憶媒体 | |
| JPS62187418U (enExample) | ||
| JPH025120U (enExample) | ||
| JPH0452995B2 (enExample) | ||
| JPS6113289B2 (enExample) | ||
| JPH02149122U (enExample) | ||
| JPS61105920U (enExample) | ||
| JPS60183922U (ja) | 光デイスク用サ−ボ回路 | |
| JPH035219U (enExample) | ||
| JPH0349621U (enExample) | ||
| JPS63131329A (ja) | 光デイスク | |
| JPS62158629U (enExample) | ||
| JPS6283221U (enExample) | ||
| JPS63173719U (enExample) | ||
| JPH0352826U (enExample) | ||
| JPS60132620U (ja) | 光学記録再生装置のビ−ム位置調整装置 |