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
Application number
JP1634788U
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1634788U priority Critical patent/JPH01121131U/ja
Publication of JPH01121131U publication Critical patent/JPH01121131U/ja
Pending legal-status Critical Current

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Description

【図面の簡単な説明】
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。

Claims (1)

    【実用新案登録請求の範囲】
  1. 記録領域としてのピツトを形成したプログラム
    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。
JP1634788U 1988-02-12 1988-02-12 Pending JPH01121131U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1634788U JPH01121131U (ja) 1988-02-12 1988-02-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1634788U JPH01121131U (ja) 1988-02-12 1988-02-12

Publications (1)

Publication Number Publication Date
JPH01121131U true JPH01121131U (ja) 1989-08-16

Family

ID=31229200

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1634788U Pending JPH01121131U (ja) 1988-02-12 1988-02-12

Country Status (1)

Country Link
JP (1) JPH01121131U (ja)

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