JPH0476615U - - Google Patents
Info
- Publication number
- JPH0476615U JPH0476615U JP1990117726U JP11772690U JPH0476615U JP H0476615 U JPH0476615 U JP H0476615U JP 1990117726 U JP1990117726 U JP 1990117726U JP 11772690 U JP11772690 U JP 11772690U JP H0476615 U JPH0476615 U JP H0476615U
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- optical information
- recording medium
- information recording
- disk
- 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 10
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第１図はデイスク基板の断面斜視図、第２図は
保護基板の断面斜視図、第３図は、第１図に示す
デイスク基板と第２図に示すデイスク基板とを貼
り合わせエアサンドイツチ構造とした光デイスク
の断面説明図、第４図及び第５図は、従来のデイ
スク断面説明図。
１……デイスク基板、２ａ……内周部接着剤溝
、２ｂ……内周部接着剤注入孔、３ａ……周縁部
接着剤溝、３ｂ……周縁部接着剤注入孔、４……
プリフオーマツト、５……保護基板、６……保護
面、７……中心孔、８……記録層、９……接着剤
。
FIG. 1 is a cross-sectional perspective view of the disk substrate, FIG. 2 is a cross-sectional perspective view of the protection substrate, and FIG. 3 is an air sander board in which the disk substrate shown in FIG. FIGS. 4 and 5 are cross-sectional views of conventional optical disks. DESCRIPTION OF SYMBOLS 1...Disk substrate, 2a...Inner circumferential adhesive groove, 2b...Inner circumferential adhesive injection hole, 3a...Peripheral adhesive groove, 3b...Peripheral adhesive injection hole, 4...
Preformat, 5... Protective substrate, 6... Protective surface, 7... Center hole, 8... Recording layer, 9... Adhesive.
Claims (1)
、該デイスク基板の上下に保護基板を備えたエア
サンドイツチ構造の光情報記録媒体において、該
デイスク基板の内周部及び周縁部の円周方向に段
差部を設け、その段差部に接着剤溝を設けたこと
を特徴とする光情報記録媒体。 (2) 保護基板がその内周部及び周縁部に円周方
向に記録面に空間をもたらすための突き出し面を
備えており、かつ、その突き出し面に接着剤注入
孔を有する請求項(1)記載の光情報記録媒体。[Claims for Utility Model Registration] (1) In an optical information recording medium with an air sandwich structure, which has recording layers on both sides of one disk substrate and protective substrates above and below the disk substrate, the disk An optical information recording medium characterized in that a stepped portion is provided in the circumferential direction of the inner peripheral portion and the peripheral portion of the substrate, and an adhesive groove is provided in the stepped portion. (2) Claim (1) wherein the protective substrate is provided with a protruding surface on its inner circumference and peripheral edge for creating a space on the recording surface in the circumferential direction, and has an adhesive injection hole on the protruding surface. The optical information recording medium described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990117726U JPH0476615U (en) | 1990-11-13 | 1990-11-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990117726U JPH0476615U (en) | 1990-11-13 | 1990-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0476615U true JPH0476615U (en) | 1992-07-03 |
Family
ID=31865633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990117726U Pending JPH0476615U (en) | 1990-11-13 | 1990-11-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0476615U (en) |
-
1990
- 1990-11-13 JP JP1990117726U patent/JPH0476615U/ja active Pending