JPH0250828U - - Google Patents
Info
- Publication number
- JPH0250828U JPH0250828U JP1988129817U JP12981788U JPH0250828U JP H0250828 U JPH0250828 U JP H0250828U JP 1988129817 U JP1988129817 U JP 1988129817U JP 12981788 U JP12981788 U JP 12981788U JP H0250828 U JPH0250828 U JP H0250828U
- Authority
- JP
- Japan
- Prior art keywords
- information recording
- disk substrates
- pair
- fixing means
- 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
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims 4
- 230000003287 optical effect Effects 0.000 description 2
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第１図は本考案の実施例に係る光デイスクを直
径方向に切断したものの斜視図、第２図は第１図
の外周部付近の拡大図、第３図は固定部材の直径
方向断面図、第４図は本考案による変形例の光デ
イスクにおける外周部付近の断面図である。
１，１′……デイスク基板、２，３……スペー
サ、５，６……固定部材、５ａ，６ａ……上側部
材、５ｂ，６ｂ……下側部材、５ｃ，６ｃ……パ
ツド、５ｄ，６ｄ……ネジ、５ｆ，６ｆ……ネジ
穴。
FIG. 1 is a perspective view of an optical disk according to an embodiment of the present invention cut in the diametrical direction, FIG. 2 is an enlarged view of the vicinity of the outer periphery of FIG. 1, and FIG. 3 is a diametrical cross-sectional view of the fixing member. FIG. 4 is a sectional view of the vicinity of the outer periphery of a modified optical disk according to the present invention. 1, 1'... Disk board, 2, 3... Spacer, 5, 6... Fixing member, 5a, 6a... Upper member, 5b, 6b... Lower member, 5c, 6c... Pad, 5d, 6d...screw, 5f, 6f...screw hole.
Claims (1)
録層を有する一対のデイスク基板と、 前記情報記録層が内側となるように平行に対向
すべく前記デイスク基板の外周部及び内周部を各
々担持する環状のスペーサと、 該スペーサを介して前記一対のデイスク基板の
内周部及び外周部をそれぞれ外側から挟み込む環
状の固定手段とを有し、 両デイスク基板間に空気層を形成してなる情報
記録媒体であつて、 前記固定手段の少なくとも一方が、機械的に接
合された着脱可能な一組の部材からなり、かつ、
両部材間に前記空気層と外気とを遮断するパツド
を有することを特徴とする情報記録媒体。[Claims for Utility Model Registration] A pair of disk substrates having a through hole in the center and at least one having an information recording layer; and an outer periphery of the disk substrates facing in parallel with the information recording layer on the inside. and an annular fixing means for sandwiching the inner and outer circumferential parts of the pair of disk substrates from the outside through the spacers, and between the two disk substrates. An information recording medium forming an air layer, wherein at least one of the fixing means is composed of a pair of mechanically bonded and detachable members, and
An information recording medium characterized in that it has a pad between both members that blocks the air layer from outside air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988129817U JPH0250828U (en) | 1988-10-03 | 1988-10-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988129817U JPH0250828U (en) | 1988-10-03 | 1988-10-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0250828U true JPH0250828U (en) | 1990-04-10 |
Family
ID=31384444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988129817U Pending JPH0250828U (en) | 1988-10-03 | 1988-10-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0250828U (en) |
-
1988
- 1988-10-03 JP JP1988129817U patent/JPH0250828U/ja active Pending
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