JPH0280320U - - Google Patents
Info
- Publication number
- JPH0280320U JPH0280320U JP1988159975U JP15997588U JPH0280320U JP H0280320 U JPH0280320 U JP H0280320U JP 1988159975 U JP1988159975 U JP 1988159975U JP 15997588 U JP15997588 U JP 15997588U JP H0280320 U JPH0280320 U JP H0280320U
- Authority
- JP
- Japan
- Prior art keywords
- convex portion
- disc
- disk
- shaped
- shaped substrate
- 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 8
- 230000002093 peripheral effect Effects 0.000 claims 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第１図は本考案の一実施例の情報記録媒体の構
造を示す断面図、第２図は第１図の情報記録媒体
の一方のデイスク状基板を示す斜視断面図、第３
図及び第４図はそれぞれ本考案による別の実施例
の情報記録媒体の構造を示す断面図である。
１，１′，１Ａ，１Ａ′，１Ｂ，１Ｂ′…デイ
スク状基板、２，２′，２Ｂ，２Ｂ′…凸部、３
，３′，３Ｂ，３Ｂ′…溝、４…スペーサ、５，
５′…中心孔、６，６′…中心部材、７…空気層
（エアギヤツプ）。
FIG. 1 is a cross-sectional view showing the structure of an information recording medium according to an embodiment of the present invention, FIG. 2 is a perspective cross-sectional view showing one disk-shaped substrate of the information recording medium of FIG. 1, and FIG.
FIG. 4 is a cross-sectional view showing the structure of an information recording medium according to another embodiment of the present invention. 1, 1', 1A, 1A', 1B, 1B'...disc-shaped substrate, 2, 2', 2B, 2B'...convex portion, 3
, 3', 3B, 3B'...Groove, 4...Spacer, 5,
5'...Central hole, 6,6'...Central member, 7...Air layer (air gap).
Claims (1)
周部半周に凸部を有し、該凸部の内周側面にその
内周に沿つて延びかつ凸部の設けられていない外
周部の板厚と同寸法の幅の溝が形成された一対の
デイスク状基板からなり、 該一対のデイスク状基板は、一方のデイスク状
基板の凸部の設けられていない外周部が他方のデ
イスク状基板の凸部に形成された溝と嵌含するご
とく組み合わされ、両デイスク状基板間に空気層
が形成されていることを特徴とする情報記録媒体
。[Claims for Utility Model Registration] A recording layer is provided on at least one side, and a convex portion is provided on a half circumference of the outer periphery, and a convex portion is provided on an inner peripheral side surface of the convex portion extending along the inner circumference. A pair of disk-shaped substrates are formed with a groove having a width equal to the thickness of the outer circumferential portion of the one disk-shaped substrate, and the outer circumferential portion of one of the disk-shaped substrates is An information recording medium characterized in that the disc-shaped substrate is assembled so as to fit into a groove formed in a convex portion of the other disc-shaped substrate, and an air layer is formed between both disc-shaped substrates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988159975U JPH0280320U (en) | 1988-12-08 | 1988-12-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988159975U JPH0280320U (en) | 1988-12-08 | 1988-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0280320U true JPH0280320U (en) | 1990-06-20 |
Family
ID=31441652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988159975U Pending JPH0280320U (en) | 1988-12-08 | 1988-12-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0280320U (en) |
-
1988
- 1988-12-08 JP JP1988159975U patent/JPH0280320U/ja active Pending