JPH01151424U - - Google Patents
Info
- Publication number
- JPH01151424U JPH01151424U JP1987195790U JP19579087U JPH01151424U JP H01151424 U JPH01151424 U JP H01151424U JP 1987195790 U JP1987195790 U JP 1987195790U JP 19579087 U JP19579087 U JP 19579087U JP H01151424 U JPH01151424 U JP H01151424U
- Authority
- JP
- Japan
- Prior art keywords
- disk
- disk substrate
- center
- information
- discontinuously
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第1図は本考案の実施例の縦断面図、第2図は
平面図、第3図は一使用状態の斜面図、第4図は
他の実施例の縦断面図、第5図は従来例の縦断面
図である。
1…グルーブ形成面、11…表側面、2…中心
孔、3…デイスク基板、4…外周面、5…凸条、
51…凹条、6…中央凹部、10…デイスクカー
トリツジ。
Fig. 1 is a longitudinal sectional view of an embodiment of the present invention, Fig. 2 is a plan view, Fig. 3 is a perspective view of one state of use, Fig. 4 is a longitudinal sectional view of another embodiment, and Fig. 5 is a conventional one. FIG. 3 is an example vertical cross-sectional view. DESCRIPTION OF SYMBOLS 1... Groove formation surface, 1 1 ... Front surface, 2... Center hole, 3... Disk substrate, 4... Outer peripheral surface, 5... Convex strip,
5 1 ... Concave strip, 6... Center recess, 10... Disk cartridge.
Claims (1)
再生可能なグルーブ形成面1を平坦表側面11に
有し、中央部に中心孔2のある円形状のデイスク
基板3において、該デイスク基板3の外周面に係
支用の凸条5又は凹条51を備えたことを特徴と
する情報デイスク。 (2) 前記係支用凸条5が、前記デイスク基板3
の周囲にリング状に連続又は不連続に形成された
山形凸条である実用新案登録請求の範囲第1項記
載の情報デイスク。 (3) 前記係支用凹条51が、前記デイスク基板
3の外周面中央にリング状に連続又は不連続に形
成されたV溝である実用新案登録請求の範囲第1
項記載の情報デイスク。[Claims for Utility Model Registration] (1) A circular shape having a groove forming surface 1 that can be recorded and reproduced by an optical method or magneto-optical method on a flat front surface 11 , and a center hole 2 in the center. An information disk characterized in that the disk substrate 3 is provided with protrusions 5 or grooves 51 for engagement on the outer peripheral surface of the disk substrate 3. (2) The engagement protrusion 5 is connected to the disk substrate 3.
2. The information disk according to claim 1, which is a chevron-shaped convex strip formed continuously or discontinuously in a ring shape around the periphery of the disk. (3) Utility model registration claim 1, wherein the retaining groove 5 1 is a V-groove formed continuously or discontinuously in a ring shape at the center of the outer peripheral surface of the disk substrate 3.
Information disc listed in section.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987195790U JPH01151424U (en) | 1987-12-25 | 1987-12-25 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987195790U JPH01151424U (en) | 1987-12-25 | 1987-12-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01151424U true JPH01151424U (en) | 1989-10-19 |
Family
ID=31486447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987195790U Pending JPH01151424U (en) | 1987-12-25 | 1987-12-25 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01151424U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0414648A (en) * | 1990-05-08 | 1992-01-20 | Sharp Corp | Magneto-optical disk and production thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6079540A (en) * | 1983-10-06 | 1985-05-07 | C B S Sony Rekoode Kk | Optical recording medium |
-
1987
- 1987-12-25 JP JP1987195790U patent/JPH01151424U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6079540A (en) * | 1983-10-06 | 1985-05-07 | C B S Sony Rekoode Kk | Optical recording medium |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0414648A (en) * | 1990-05-08 | 1992-01-20 | Sharp Corp | Magneto-optical disk and production thereof |
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