JPH01165917U - - Google Patents
Info
- Publication number
- JPH01165917U JPH01165917U JP1988059946U JP5994688U JPH01165917U JP H01165917 U JPH01165917 U JP H01165917U JP 1988059946 U JP1988059946 U JP 1988059946U JP 5994688 U JP5994688 U JP 5994688U JP H01165917 U JPH01165917 U JP H01165917U
- Authority
- JP
- Japan
- Prior art keywords
- guide groove
- information signal
- land portion
- optical disc
- disc
- 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 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988059946U JPH01165917U (sv) | 1988-05-06 | 1988-05-06 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988059946U JPH01165917U (sv) | 1988-05-06 | 1988-05-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01165917U true JPH01165917U (sv) | 1989-11-21 |
Family
ID=31285680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988059946U Pending JPH01165917U (sv) | 1988-05-06 | 1988-05-06 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01165917U (sv) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS595449A (ja) * | 1982-06-30 | 1984-01-12 | Matsushita Electric Ind Co Ltd | 光デイスク用記録担体 |
-
1988
- 1988-05-06 JP JP1988059946U patent/JPH01165917U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS595449A (ja) * | 1982-06-30 | 1984-01-12 | Matsushita Electric Ind Co Ltd | 光デイスク用記録担体 |