JPS6452123U - - Google Patents

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Publication number
JPS6452123U
JPS6452123U JP14627787U JP14627787U JPS6452123U JP S6452123 U JPS6452123 U JP S6452123U JP 14627787 U JP14627787 U JP 14627787U JP 14627787 U JP14627787 U JP 14627787U JP S6452123 U JPS6452123 U JP S6452123U
Authority
JP
Japan
Prior art keywords
recording medium
pickup device
information recording
optical pickup
light
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.)
Granted
Application number
JP14627787U
Other languages
English (en)
Other versions
JPH073462Y2 (ja
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 JP14627787U priority Critical patent/JPH073462Y2/ja
Publication of JPS6452123U publication Critical patent/JPS6452123U/ja
Application granted granted Critical
Publication of JPH073462Y2 publication Critical patent/JPH073462Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【図面の簡単な説明】
第1図は、本考案の一実施例の概略側断面図、
第2図a及び第2図bは、それぞれ実施例の収束
位置での光線の断面形状及び受光素子のチツプ形
状を示す図、第3図は、他の実施例の受光素子の
チツプ形状を示す図、第4図は、従来例の概略側
断面図である。 1a,1b……半導体レーザー光源、3a,3
b……ビームスプリツター、5……プリズム、6
……集光レンズ、7……光検出器、7a,7b…
…受光素子、10……デイスク状記録媒体、12
a,12b……反射光、12a′,12b′……
反射光の収束位置でのスポツト。

Claims (1)

    【実用新案登録請求の範囲】
  1. 情報記録媒体に波長の異なる複数個の光ビーム
    を照射し、同時に複数の異なる情報の記録再生を
    行うように構成された光ピツクアツプ装置におい
    て、情報記録媒体から反射された信号光を同一の
    光路を経て光検出器に導く集光手段として、波長
    によつて光軸方向の収束位置が異なる集光手段を
    用いたことを特徴とする光ピツクアツプ装置。
JP14627787U 1987-09-24 1987-09-24 光ピックアップ装置 Expired - Lifetime JPH073462Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14627787U JPH073462Y2 (ja) 1987-09-24 1987-09-24 光ピックアップ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14627787U JPH073462Y2 (ja) 1987-09-24 1987-09-24 光ピックアップ装置

Publications (2)

Publication Number Publication Date
JPS6452123U true JPS6452123U (ja) 1989-03-30
JPH073462Y2 JPH073462Y2 (ja) 1995-01-30

Family

ID=31415614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14627787U Expired - Lifetime JPH073462Y2 (ja) 1987-09-24 1987-09-24 光ピックアップ装置

Country Status (1)

Country Link
JP (1) JPH073462Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0193622U (ja) * 1987-12-14 1989-06-20

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0193622U (ja) * 1987-12-14 1989-06-20

Also Published As

Publication number Publication date
JPH073462Y2 (ja) 1995-01-30

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