JPH01121131U - - Google Patents
Info
- Publication number
- JPH01121131U JPH01121131U JP1634788U JP1634788U JPH01121131U JP H01121131 U JPH01121131 U JP H01121131U JP 1634788 U JP1634788 U JP 1634788U JP 1634788 U JP1634788 U JP 1634788U JP H01121131 U JPH01121131 U JP H01121131U
- Authority
- JP
- Japan
- Prior art keywords
- stamper
- pits
- concavo
- pit
- manufacturing
- 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
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Manufacturing Optical Record Carriers (AREA)
Description
第１図は本考案にかかるスタンパーの一部を示
す概略斜視図、第２図は本考案のスタンパーを用
いた射出成形金型の一部を示す概略断面図、第３
図は第２図におけるＡ部を拡大した説明図、第４
図は第３図の状態からスタンパーと成形板との分
離状態を示す説明図、第５図は本考案のスタンパ
ーにより得られた成形品の概略斜視図。
１……スタンパー、１ａ……記録領域、１ｂ…
…内周部、１ｃ……外周部、２ｂ……内周部に形
成する凹凸形状部、２ｃ……外周部に形成する凹
凸形状部。
FIG. 1 is a schematic perspective view showing a part of a stamper according to the present invention, FIG. 2 is a schematic sectional view showing a part of an injection mold using the stamper of the present invention, and FIG.
The figure is an enlarged explanatory view of part A in Fig. 2.
The figure is an explanatory diagram showing a separated state of the stamper and the molded plate from the state shown in FIG. 3, and FIG. 5 is a schematic perspective view of a molded product obtained by the stamper of the present invention. 1... Stamper, 1a... Recording area, 1b...
...inner circumference, 1c...outer circumference, 2b... uneven portion formed on the inner circumference, 2c... uneven portion formed on the outer circumference.
Claims (1)
区間の外に位置する内周側及び外周側の部分に、
前記ピツトの寸法より大きい凹凸形状部を設けた
ことを特徴とする光デイスク製造用スタンパー。 In the inner and outer parts located outside the program section where pits are formed as recording areas,
A stamper for manufacturing an optical disk, characterized in that a concavo-convex portion having a size larger than that of the pit is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1634788U JPH01121131U (en) | 1988-02-12 | 1988-02-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1634788U JPH01121131U (en) | 1988-02-12 | 1988-02-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01121131U true JPH01121131U (en) | 1989-08-16 |
Family
ID=31229200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1634788U Pending JPH01121131U (en) | 1988-02-12 | 1988-02-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01121131U (en) |
-
1988
- 1988-02-12 JP JP1634788U patent/JPH01121131U/ja active Pending