JPS6239230U - - Google Patents

Info

Publication number
JPS6239230U
JPS6239230U JP12894985U JP12894985U JPS6239230U JP S6239230 U JPS6239230 U JP S6239230U JP 12894985 U JP12894985 U JP 12894985U JP 12894985 U JP12894985 U JP 12894985U JP S6239230 U JPS6239230 U JP S6239230U
Authority
JP
Japan
Prior art keywords
optical
optical head
paths
recording medium
optical paths
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
JP12894985U
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 JP12894985U priority Critical patent/JPS6239230U/ja
Publication of JPS6239230U publication Critical patent/JPS6239230U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Optical Head (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)

Description

【図面の簡単な説明】
第１図は本考案により複数ビーム光ヘツドの一
実施例を示す図、第２図は従来の一般的な複数ビ
ーム光ヘツドの構成図である。 １０，２９……光分離素子、１１……反射ミラ
ー、１２，３０……検出系、２０ａ，２０ｂ，２
０ｃ，２０ｄ……レーザ光、２１ａ，２１ｂ……
半導体レーザ、２２……コリメータレンズ、２３
……偏光ビームスプリツタ、２４……１／４波長
板、２５……アクチユエータ、２６……収束レン
ズ、２７……記録媒体、２８……レンズ。

Claims (1)

    【実用新案登録請求の範囲】
  1. 複数の半導体レーザの放射光の記録媒体からの
    反射光を、光路を分離して独立に検出する複数ビ
    ーム光ヘツドであつて、光路を分離する光学的手
    段として光学遮蔽面が反射ミラーである空間フイ
    ルタを用いたことを特徴とする複数ビーム光ヘツ
    ド。
JP12894985U 1985-08-26 1985-08-26 Pending JPS6239230U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12894985U JPS6239230U (ja) 1985-08-26 1985-08-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12894985U JPS6239230U (ja) 1985-08-26 1985-08-26

Publications (1)

Publication Number Publication Date
JPS6239230U true JPS6239230U (ja) 1987-03-09

Family

ID=31025082

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12894985U Pending JPS6239230U (ja) 1985-08-26 1985-08-26

Country Status (1)

Country Link
JP (1) JPS6239230U (ja)

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