JPH0216426U - - Google Patents

Info

Publication number
JPH0216426U
JPH0216426U JP1988095583U JP9558388U JPH0216426U JP H0216426 U JPH0216426 U JP H0216426U JP 1988095583 U JP1988095583 U JP 1988095583U JP 9558388 U JP9558388 U JP 9558388U JP H0216426 U JPH0216426 U JP H0216426U
Authority
JP
Japan
Prior art keywords
disc
information signal
thin film
ceramic substrate
shaped ceramic
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
JP1988095583U
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 JP1988095583U priority Critical patent/JPH0216426U/ja
Publication of JPH0216426U publication Critical patent/JPH0216426U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)

Description

【図面の簡単な説明】
第1図は本考案の光学的情報信号記録円盤の断
面図、第2図は従来例の断面図である。 1,1′……光学的情報信号記録円盤、2……
セラミツクス基板、3……反射薄膜、4……ガラ
ス製の保護膜、5……ポリカーボネート製の基板
、6……プラスチツク製の保護膜。

Claims (1)

    【実用新案登録請求の範囲】
  1. 情報信号が形成された円盤状セラミツクス基板
    上に反射薄膜が形成され、この円盤状セラミツク
    ス基板とこの反射薄膜とがガラス中に封入された
    ことを特徴とする光学的情報信号記録円盤。
JP1988095583U 1988-07-19 1988-07-19 Pending JPH0216426U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988095583U JPH0216426U (ja) 1988-07-19 1988-07-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988095583U JPH0216426U (ja) 1988-07-19 1988-07-19

Publications (1)

Publication Number Publication Date
JPH0216426U true JPH0216426U (ja) 1990-02-01

Family

ID=31320264

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988095583U Pending JPH0216426U (ja) 1988-07-19 1988-07-19

Country Status (1)

Country Link
JP (1) JPH0216426U (ja)

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