JPH0166620U - - Google Patents
Info
- Publication number
- JPH0166620U JPH0166620U JP1987163527U JP16352787U JPH0166620U JP H0166620 U JPH0166620 U JP H0166620U JP 1987163527 U JP1987163527 U JP 1987163527U JP 16352787 U JP16352787 U JP 16352787U JP H0166620 U JPH0166620 U JP H0166620U
- Authority
- JP
- Japan
- Prior art keywords
- spacer
- disk
- annular body
- disk substrates
- hole
- 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
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 2
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987163527U JPH0166620U (zh) | 1987-10-26 | 1987-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987163527U JPH0166620U (zh) | 1987-10-26 | 1987-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0166620U true JPH0166620U (zh) | 1989-04-28 |
Family
ID=31448326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987163527U Pending JPH0166620U (zh) | 1987-10-26 | 1987-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0166620U (zh) |
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1987
- 1987-10-26 JP JP1987163527U patent/JPH0166620U/ja active Pending