JPH0185923U - - Google Patents
Info
- Publication number
- JPH0185923U JPH0185923U JP1987181649U JP18164987U JPH0185923U JP H0185923 U JPH0185923 U JP H0185923U JP 1987181649 U JP1987181649 U JP 1987181649U JP 18164987 U JP18164987 U JP 18164987U JP H0185923 U JPH0185923 U JP H0185923U
- Authority
- JP
- Japan
- Prior art keywords
- layer
- outer periphery
- optical disk
- information pits
- reflective layer
- 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
- 239000010410 layer Substances 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987181649U JPH0185923U (en]) | 1987-11-28 | 1987-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987181649U JPH0185923U (en]) | 1987-11-28 | 1987-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0185923U true JPH0185923U (en]) | 1989-06-07 |
Family
ID=31473128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987181649U Pending JPH0185923U (en]) | 1987-11-28 | 1987-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0185923U (en]) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57167148A (en) * | 1981-04-03 | 1982-10-14 | Sony Corp | Optical recording medium |
| JPS57169937A (en) * | 1981-04-10 | 1982-10-19 | Sony Corp | Optical type recording medium |
-
1987
- 1987-11-28 JP JP1987181649U patent/JPH0185923U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57167148A (en) * | 1981-04-03 | 1982-10-14 | Sony Corp | Optical recording medium |
| JPS57169937A (en) * | 1981-04-10 | 1982-10-19 | Sony Corp | Optical type recording medium |