JPH0310322U - - Google Patents

Info

Publication number
JPH0310322U
JPH0310322U JP1989067284U JP6728489U JPH0310322U JP H0310322 U JPH0310322 U JP H0310322U JP 1989067284 U JP1989067284 U JP 1989067284U JP 6728489 U JP6728489 U JP 6728489U JP H0310322 U JPH0310322 U JP H0310322U
Authority
JP
Japan
Prior art keywords
optical disk
transparent plastic
recesses
flat plate
annular
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
JP1989067284U
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 JP1989067284U priority Critical patent/JPH0310322U/ja
Publication of JPH0310322U publication Critical patent/JPH0310322U/ja
Pending legal-status Critical Current

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Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)

Description

【図面の簡単な説明】
第1図は、本考案の実施例を説明するための側
断面図、第2図は、従来例を説明するための側断
面図である。 1:溝付きプラスチツク基板、2:記録膜、3
,7:プラスチツク平板、4:接着剤、5,6:
窪み、8:環状突起。

Claims (1)

  1. 【実用新案登録請求の範囲】 1 記録層を形成した、中心孔と記録領域との間
    に環状の窪みを有する透明プラスチツク基板上に
    、透明プラスチツク平板を全面接着した貼り合わ
    せ構造の光デイスクにおいて、前記透明プラスチ
    ツク平板が、前記窪みに対応する位置に当該窪み
    に少なくともその先端が挿入できる断面が先細状
    の環状突起を両面に有することを特徴とする光デ
    イスク。 2 前記環状突起は、断面がV字状またはU字状
    である請求項第1項記載の光デイスク。
JP1989067284U 1989-06-12 1989-06-12 Pending JPH0310322U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989067284U JPH0310322U (ja) 1989-06-12 1989-06-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989067284U JPH0310322U (ja) 1989-06-12 1989-06-12

Publications (1)

Publication Number Publication Date
JPH0310322U true JPH0310322U (ja) 1991-01-31

Family

ID=31600725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989067284U Pending JPH0310322U (ja) 1989-06-12 1989-06-12

Country Status (1)

Country Link
JP (1) JPH0310322U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6226567U (ja) * 1985-08-01 1987-02-18

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6226567U (ja) * 1985-08-01 1987-02-18

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