JPS64820U - - Google Patents
Info
- Publication number
- JPS64820U JPS64820U JP1987092020U JP9202087U JPS64820U JP S64820 U JPS64820 U JP S64820U JP 1987092020 U JP1987092020 U JP 1987092020U JP 9202087 U JP9202087 U JP 9202087U JP S64820 U JPS64820 U JP S64820U
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- optical disk
- protective cover
- covers
- spacers
- 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
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims 4
- 239000011521 glass Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 229920003002 synthetic resin Polymers 0.000 claims 1
- 239000000057 synthetic resin Substances 0.000 claims 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第１図は本考案に係る光デイスクを示す断面図
、第２図は他の実施例を示す要部の断面図、第３
図は従来の光デイスクを示す断面図である。
１２……基板、１３，１４……保護カバー、２
１，２２……内スペーサ、２３，２４……外スペ
ーサ。
FIG. 1 is a cross-sectional view showing an optical disk according to the present invention, FIG. 2 is a cross-sectional view of main parts showing another embodiment, and FIG.
The figure is a sectional view showing a conventional optical disk. 12... Board, 13, 14... Protective cover, 2
1, 22... Inner spacer, 23, 24... Outer spacer.
Claims (1)
この基板の表裏面を被覆して保護する透明な保護
カバーとからなり、レーザ光を保護カバー側から
入射する光デイスクにおいて、前記基板を合成樹
脂で形成し、保護カバーを中央孔を有する円板状
のガラスで形成すると共に、これら保護カバーの
内周部および外周部に保護カバー間をシールする
スペーサを介装し、内周部のスペーサで基板を保
持したことを特徴とする光デイスク。 a substrate having a recording layer on at least one surface;
In an optical disk that includes a transparent protective cover that covers and protects the front and back surfaces of the substrate, and in which laser light enters from the protective cover side, the substrate is made of synthetic resin, and the protective cover is a circular disk having a central hole. 1. An optical disk characterized in that the optical disk is formed of a shaped glass, spacers are interposed between the inner and outer circumferential parts of the protective covers for sealing between the protective covers, and the substrate is held by the spacers on the inner circumferential parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987092020U JPS64820U (en) | 1987-06-17 | 1987-06-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987092020U JPS64820U (en) | 1987-06-17 | 1987-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS64820U true JPS64820U (en) | 1989-01-05 |
Family
ID=30953338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987092020U Pending JPS64820U (en) | 1987-06-17 | 1987-06-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS64820U (en) |
-
1987
- 1987-06-17 JP JP1987092020U patent/JPS64820U/ja active Pending
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