JPH01159226U - - Google Patents
Info
- Publication number
- JPH01159226U JPH01159226U JP1988054106U JP5410688U JPH01159226U JP H01159226 U JPH01159226 U JP H01159226U JP 1988054106 U JP1988054106 U JP 1988054106U JP 5410688 U JP5410688 U JP 5410688U JP H01159226 U JPH01159226 U JP H01159226U
- Authority
- JP
- Japan
- Prior art keywords
- circumferential spacer
- inner circumferential
- spacer
- recording layer
- disk substrates
- 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 11
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 3
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第１図は本考案の光学式情報記録媒体に用いら
れるスパイラル状の溝を有する内周スペーサの平
面図、第２図は第１図の内周スペーサを用いた光
学式情報記録媒体の要部を示す断面図、第３図は
従来の封止型光学式情報記録媒体を示す断面図、
第４図は第３図に示す記録媒体に用いられる内周
スペーサの接着部を示す平面図、第５図は接着剤
を塗布しない部分を外気との通路とする従来の光
学式情報記録媒体に用いられる内周スペーサの接
着部を示す平面図である。
１，１ａ……内周スペーサ、２……スパイラル
状の溝、３……未接着面、４……接着面、５……
デイスク基板、６……記録層、７……中空部、８
……外周スペーサ、９……外気との通路、１０…
…接着部分。
FIG. 1 is a plan view of an inner circumferential spacer having a spiral groove used in the optical information recording medium of the present invention, and FIG. 2 is a main part of an optical information recording medium using the inner circumferential spacer of FIG. 1. 3 is a sectional view showing a conventional sealed optical information recording medium,
Fig. 4 is a plan view showing the adhesive part of the inner spacer used in the recording medium shown in Fig. 3, and Fig. 5 is a plan view showing the adhesive part of the inner spacer used in the recording medium shown in Fig. 3. FIG. 3 is a plan view showing a bonded portion of an inner circumferential spacer to be used. 1, 1a... Inner spacer, 2... Spiral groove, 3... Unbonded surface, 4... Bonded surface, 5...
Disc substrate, 6... Recording layer, 7... Hollow part, 8
...Outer spacer, 9...Passage with outside air, 10...
...Adhesive part.
Claims (1)
面に記録層を有する１対の基板を同心的に配置さ
せた内周スペーサ及び外周スペーサを介して記録
層が内側になるように貼り合わせてなるエアサン
ドイツチ構造を有する情報記録媒体において、そ
の内周スペーサの片面にスパイラル状の溝を設け
、その内周スペーサの溝を設けない面のみを接着
剤により接着したことを特徴とする光学式情報記
録媒体。 A pair of disk substrates having a recording layer on one side of at least one of the two disk substrates are bonded together with the recording layer on the inside through an inner circumferential spacer and an outer circumferential spacer which are arranged concentrically. An optical information recording medium having a sandwich structure, characterized in that a spiral groove is provided on one side of an inner circumferential spacer, and only the surface of the inner circumferential spacer on which no groove is provided is bonded with an adhesive. recoding media.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988054106U JPH01159226U (en) | 1988-04-21 | 1988-04-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988054106U JPH01159226U (en) | 1988-04-21 | 1988-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01159226U true JPH01159226U (en) | 1989-11-02 |
Family
ID=31280050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988054106U Pending JPH01159226U (en) | 1988-04-21 | 1988-04-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01159226U (en) |
-
1988
- 1988-04-21 JP JP1988054106U patent/JPH01159226U/ja active Pending