JPH0235333U - - Google Patents
Info
- Publication number
- JPH0235333U JPH0235333U JP1988112926U JP11292688U JPH0235333U JP H0235333 U JPH0235333 U JP H0235333U JP 1988112926 U JP1988112926 U JP 1988112926U JP 11292688 U JP11292688 U JP 11292688U JP H0235333 U JPH0235333 U JP H0235333U
- Authority
- JP
- Japan
- Prior art keywords
- groove
- substrate
- protecting
- outer peripheral
- protective film
- 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 4
- 230000003287 optical effect Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000001681 protective effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第１図はこの考案の一実施例を示す構成図、第
２図はその説明のための図、第３図はこの考案の
他の実施例を示す構成図、第４図はデイスク基板
の一例の構成図、第５図および第６図はその説明
のための図である。
１はデイスク基板、２は凹溝、２２はスタンパ
ー、２７はスタンパーホルダー、２７ａは取付部
、１００はコート材である。
Fig. 1 is a block diagram showing one embodiment of this invention, Fig. 2 is a diagram for explaining the same, Fig. 3 is a block diagram showing another embodiment of this invention, and Fig. 4 is an example of a disk substrate. The configuration diagram of FIG. 5 and FIG. 6 are diagrams for explaining the same. 1 is a disk substrate, 2 is a groove, 22 is a stamper, 27 is a stamper holder, 27a is a mounting portion, and 100 is a coating material.
Claims (1)
このデイスク基板の記録面を保護する保護膜が設
けられる光デイスクにおいて、 上記凹溝の少なくとも外周側の側壁面がゆるや
かな傾斜面とされることを特徴とする光デイスク
。[Claims for Utility Model Registration] In addition to having a concave groove on the circumferential side of the disk substrate,
An optical disc provided with a protective film for protecting a recording surface of a disc substrate, wherein at least a side wall surface on an outer peripheral side of the groove is a gently sloped surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988112926U JPH0235333U (en) | 1988-08-29 | 1988-08-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988112926U JPH0235333U (en) | 1988-08-29 | 1988-08-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0235333U true JPH0235333U (en) | 1990-03-07 |
Family
ID=31352311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988112926U Pending JPH0235333U (en) | 1988-08-29 | 1988-08-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0235333U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62222449A (en) * | 1986-03-20 | 1987-09-30 | Fuji Photo Film Co Ltd | Substrate for information recording medium |
-
1988
- 1988-08-29 JP JP1988112926U patent/JPH0235333U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62222449A (en) * | 1986-03-20 | 1987-09-30 | Fuji Photo Film Co Ltd | Substrate for information recording medium |
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