JPS6322662U - - Google Patents

Info

Publication number
JPS6322662U
JPS6322662U JP1986113995U JP11399586U JPS6322662U JP S6322662 U JPS6322662 U JP S6322662U JP 1986113995 U JP1986113995 U JP 1986113995U JP 11399586 U JP11399586 U JP 11399586U JP S6322662 U JPS6322662 U JP S6322662U
Authority
JP
Japan
Prior art keywords
disk
information recording
recording layer
base material
outer diameter
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
JP1986113995U
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 JP1986113995U priority Critical patent/JPS6322662U/ja
Priority to PCT/JP1987/000343 priority patent/WO1988000755A1/en
Priority to KR1019880700296A priority patent/KR910008504B1/ko
Priority to DE8787903433T priority patent/DE3783353D1/de
Priority to EP87903433A priority patent/EP0277235B1/en
Priority to US07/168,125 priority patent/US4877667A/en
Publication of JPS6322662U publication Critical patent/JPS6322662U/ja
Priority to CN89107461.9A priority patent/CN1014562B/zh
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Record Carriers (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Description

【図面の簡単な説明】
第１図は、この考案の一実施例による光デイス
クの斜視図、第２図従来の光デイスクの斜視図で
ある。図において、１はデイスク基材、１ａは情
報記録層、２は円板である。なお各図中同一符号
は同一又は相当部分を示す。

Claims (1)

    【実用新案登録請求の範囲】
  1. 径方向の所定の領域に情報記録層を有するデイ
    スク基材のほぼ中心部に外径が上記情報記録層の
    最内径より小さい所定の径の円板を設けたものに
    おいて、上記円板は上記デイスク基材にほぼ同一
    の材料と磁性体とを混合した材料を成形したもの
    であることを特徴とする光デイスク。
JP1986113995U 1986-07-22 1986-07-22 Pending JPS6322662U (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP1986113995U JPS6322662U (ja) 1986-07-22 1986-07-22
PCT/JP1987/000343 WO1988000755A1 (en) 1986-07-22 1987-05-28 Optical disc
KR1019880700296A KR910008504B1 (ko) 1986-07-22 1987-05-28 광디스크
DE8787903433T DE3783353D1 (de) 1986-07-22 1987-05-28 Optische speicherplatte.
EP87903433A EP0277235B1 (en) 1986-07-22 1987-05-28 Optical disc
US07/168,125 US4877667A (en) 1986-07-22 1987-05-28 Optical disc with inhibited thermal distortion
CN89107461.9A CN1014562B (zh) 1986-07-22 1989-09-19 光盘

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986113995U JPS6322662U (ja) 1986-07-22 1986-07-22

Publications (1)

Publication Number Publication Date
JPS6322662U true JPS6322662U (ja) 1988-02-15

Family

ID=14626420

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986113995U Pending JPS6322662U (ja) 1986-07-22 1986-07-22

Country Status (2)

Country Link
JP (1) JPS6322662U (ja)
CN (1) CN1014562B (ja)

Also Published As

Publication number Publication date
CN1014562B (zh) 1991-10-30
CN1040283A (zh) 1990-03-07

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