JPH0159919U - - Google Patents
Info
- Publication number
- JPH0159919U JPH0159919U JP1987152359U JP15235987U JPH0159919U JP H0159919 U JPH0159919 U JP H0159919U JP 1987152359 U JP1987152359 U JP 1987152359U JP 15235987 U JP15235987 U JP 15235987U JP H0159919 U JPH0159919 U JP H0159919U
- Authority
- JP
- Japan
- Prior art keywords
- disk body
- substrate
- recording medium
- guide groove
- medium 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
- 239000000758 substrate Substances 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第１図はこの考案の一実施例を示す断面図、第
２図は従来例を示す断面図、第３図はビーム絞り
込み作用を示す説明図である。
１３……デイスク本体、１４……カートリツジ
、１５……案内溝、１６……基板、１７……記録
媒体層、１８……透明基板。
FIG. 1 is a sectional view showing an embodiment of this invention, FIG. 2 is a sectional view showing a conventional example, and FIG. 3 is an explanatory view showing the beam narrowing effect. 13... Disk body, 14... Cartridge, 15... Guide groove, 16... Substrate, 17... Recording medium layer, 18... Transparent substrate.
Claims (1)
形成したデイスク本体を設け、このデイスク本体
を一部に透明基板を備えたカートリツジ内に密封
収納させたことを特徴とする光デイスク。 An optical disk characterized in that a disk body is provided with a recording medium layer formed on the outer surface of a substrate having a guide groove on the outer surface, and the disk body is hermetically housed in a cartridge partially provided with a transparent substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987152359U JPH0159919U (en) | 1987-10-05 | 1987-10-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987152359U JPH0159919U (en) | 1987-10-05 | 1987-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0159919U true JPH0159919U (en) | 1989-04-14 |
Family
ID=31427214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987152359U Pending JPH0159919U (en) | 1987-10-05 | 1987-10-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0159919U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56137555A (en) * | 1980-03-27 | 1981-10-27 | Sony Corp | Optical disc cassette and disc driving method |
| JPS6190342A (en) * | 1984-10-08 | 1986-05-08 | Ricoh Co Ltd | optical information storage medium |
-
1987
- 1987-10-05 JP JP1987152359U patent/JPH0159919U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56137555A (en) * | 1980-03-27 | 1981-10-27 | Sony Corp | Optical disc cassette and disc driving method |
| JPS6190342A (en) * | 1984-10-08 | 1986-05-08 | Ricoh Co Ltd | optical information storage medium |