JPH046815U - - Google Patents
Info
- Publication number
- JPH046815U JPH046815U JP4617890U JP4617890U JPH046815U JP H046815 U JPH046815 U JP H046815U JP 4617890 U JP4617890 U JP 4617890U JP 4617890 U JP4617890 U JP 4617890U JP H046815 U JPH046815 U JP H046815U
- Authority
- JP
- Japan
- Prior art keywords
- medium
- beams
- recording
- light source
- pick
- 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 3
- 238000010586 diagram Methods 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4617890U JPH046815U (en]) | 1990-04-28 | 1990-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4617890U JPH046815U (en]) | 1990-04-28 | 1990-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH046815U true JPH046815U (en]) | 1992-01-22 |
Family
ID=31561030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4617890U Pending JPH046815U (en]) | 1990-04-28 | 1990-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH046815U (en]) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61214148A (ja) * | 1985-03-19 | 1986-09-24 | Matsushita Electric Ind Co Ltd | 消去可能な光記録方法 |
| JPH03296922A (ja) * | 1989-12-29 | 1991-12-27 | Matsushita Electric Ind Co Ltd | 光学情報の記録再生消去方法および光記録装置 |
-
1990
- 1990-04-28 JP JP4617890U patent/JPH046815U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61214148A (ja) * | 1985-03-19 | 1986-09-24 | Matsushita Electric Ind Co Ltd | 消去可能な光記録方法 |
| JPH03296922A (ja) * | 1989-12-29 | 1991-12-27 | Matsushita Electric Ind Co Ltd | 光学情報の記録再生消去方法および光記録装置 |