JPH0476616U - - Google Patents
Info
- Publication number
- JPH0476616U JPH0476616U JP1990119360U JP11936090U JPH0476616U JP H0476616 U JPH0476616 U JP H0476616U JP 1990119360 U JP1990119360 U JP 1990119360U JP 11936090 U JP11936090 U JP 11936090U JP H0476616 U JPH0476616 U JP H0476616U
- Authority
- JP
- Japan
- Prior art keywords
- optical information
- recording medium
- information recording
- substrates
- recording layers
- 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
- 239000000758 substrate Substances 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims 2
- 239000004576 sand Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第１図は本考案の光情報記録媒体基板の断面斜
視図、第２図は同基板を貼り合わせた状態の断面
図、第３図は同基板貼り合わせ接合面の断面斜視
図、第４図及び第５図は従来の光情報記録媒体の
断面説明図。
２……内周部接合面、３……周縁部接合面、７
……溝。
Fig. 1 is a cross-sectional perspective view of the optical information recording medium substrate of the present invention, Fig. 2 is a cross-sectional view of the same substrate bonded together, Fig. 3 is a cross-sectional perspective view of the bonded surface of the same substrates, and Fig. 4 and FIG. 5 is a cross-sectional explanatory diagram of a conventional optical information recording medium. 2... Inner circumferential joint surface, 3... Peripheral joint surface, 7
……groove.
Claims (1)
録層を内側に対向させ、該基板の内周部と周縁部
に設けたスペーサ部にて一体に成形してなるエア
サンドイツチ構造の光情報記録媒体において、前
記内周部と周縁部のスペーサ接合面を斜面とした
ことを特徴とする光情報記録媒体。 (2) 接合面の斜面円周方向に溝を設けた請求項(
1)記載の光情報記録媒体。[Claims for Utility Model Registration] (1) A pair of disk substrates having recording layers, with the recording layers facing each other inside, are integrally molded using spacers provided at the inner and peripheral portions of the substrates. What is claimed is: 1. An optical information recording medium having an air sand arch structure, characterized in that a spacer joining surface between the inner circumferential portion and the peripheral edge portion is an inclined surface. (2) A claim in which a groove is provided in the circumferential direction of the slope of the joint surface (
1) The optical information recording medium described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990119360U JPH0476616U (en) | 1990-11-16 | 1990-11-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990119360U JPH0476616U (en) | 1990-11-16 | 1990-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0476616U true JPH0476616U (en) | 1992-07-03 |
Family
ID=31867324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990119360U Pending JPH0476616U (en) | 1990-11-16 | 1990-11-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0476616U (en) |
-
1990
- 1990-11-16 JP JP1990119360U patent/JPH0476616U/ja active Pending
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