JPH01159225U - - Google Patents
Info
- Publication number
- JPH01159225U JPH01159225U JP1988053429U JP5342988U JPH01159225U JP H01159225 U JPH01159225 U JP H01159225U JP 1988053429 U JP1988053429 U JP 1988053429U JP 5342988 U JP5342988 U JP 5342988U JP H01159225 U JPH01159225 U JP H01159225U
- Authority
- JP
- Japan
- Prior art keywords
- disk
- spacer
- cavity
- disk substrate
- vent hole
- 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 8
- 239000000758 substrate Substances 0.000 claims description 7
- 239000012790 adhesive layer Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第１図は本考案の光学式情報記録デイスクの断
面図、第２図は第１図のデイスクの空洞部を示す
ための要部拡大断面図、第３図は第１図及び第２
図の空洞部を形成するためにデイスク基板に付け
た溝の部分を示す断面図、第４図はデイスク基板
中の溝の位置を示す平面図、第５図は第４図のＢ
―Ｂ断面図、第６図は溝の形成法を示すための溝
のパターンを有するスタンパの平面図、第７図は
内周スペーサの接着剤塗布部を示す平面図である
。
１……デイスク基板、２……外周スペーサ、３
……内周スペーサ、４……記録層、５……接着層
、６……溝、６ａ……通気溝、７……内部空間、
８……内周スペーサ接着領域、９……スタンパ中
心、１０……スタンパ、１１……接着剤塗布パタ
ーン。
FIG. 1 is a sectional view of the optical information recording disk of the present invention, FIG. 2 is an enlarged sectional view of the main part showing the cavity of the disk in FIG. 1, and FIG.
4 is a cross-sectional view showing the grooves formed in the disk substrate to form the cavity shown in the figure, FIG. 4 is a plan view showing the position of the grooves in the disk substrate, and FIG. 5 is B of FIG.
-B sectional view, FIG. 6 is a plan view of a stamper having a groove pattern to show a method of forming grooves, and FIG. 7 is a plan view showing an adhesive application part of an inner circumferential spacer. 1...Disk board, 2...Outer spacer, 3
... Inner spacer, 4 ... Recording layer, 5 ... Adhesive layer, 6 ... Groove, 6a ... Ventilation groove, 7 ... Inner space,
8... Inner spacer adhesion area, 9... Stamper center, 10... Stamper, 11... Adhesive application pattern.
Claims (1)
に内周スペーサと外周スペーサを配置して一体に
接着するとともに、デイスク基板間のエアギヤツ
プと大気を通気孔で連通した情報記録用デイスク
において、前記通気孔を、内周スペーサとデイス
ク基板、または外周スペーサとデイスク基板の少
なくとも一方の接着層の空洞によつて形成してな
り、該空洞は、デイスク基板の記録領域以外の部
分に設けた溝によつて構成してなることを特徴と
する光学式情報記録デイスク。 In an information recording disk in which an inner circumferential spacer and an outer circumferential spacer are arranged between disk substrates each having a recording layer on the inner surface and are bonded together, and the air gap between the disk substrates is communicated with the atmosphere through a vent hole, the vent hole is provided. is formed by a cavity in the adhesive layer of at least one of the inner spacer and the disk substrate, or the outer spacer and the disk substrate, and the cavity is formed by a groove provided in a portion of the disk substrate other than the recording area. An optical information recording disk characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988053429U JPH01159225U (en) | 1988-04-20 | 1988-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988053429U JPH01159225U (en) | 1988-04-20 | 1988-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01159225U true JPH01159225U (en) | 1989-11-02 |
Family
ID=31279409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988053429U Pending JPH01159225U (en) | 1988-04-20 | 1988-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01159225U (en) |
-
1988
- 1988-04-20 JP JP1988053429U patent/JPH01159225U/ja active Pending