JPS64817U - - Google Patents

Info

Publication number
JPS64817U
JPS64817U JP9308887U JP9308887U JPS64817U JP S64817 U JPS64817 U JP S64817U JP 9308887 U JP9308887 U JP 9308887U JP 9308887 U JP9308887 U JP 9308887U JP S64817 U JPS64817 U JP S64817U
Authority
JP
Japan
Prior art keywords
optical
shaping prism
polarizing
polarizing film
beam shaping
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
JP9308887U
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 JP9308887U priority Critical patent/JPS64817U/ja
Publication of JPS64817U publication Critical patent/JPS64817U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Optical Head (AREA)

Description

【図面の簡単な説明】
第１図は本考案に係る光学ヘツドの一実施例を
示す説明図、第２図はその動作説明図である。 １０……半導体レーザ、１２……ビーム整形プ
リズム、１４……偏光ビームスプリツタ、１６…
…光デイスク、１８……1/4波長板、２４……誘
電体多層膜、２６……フアラデー回転子、２８…
…1/2波長板。

Claims (1)

    【実用新案登録請求の範囲】
  1. 半導体レーザ光をビーム整形プリズムで円形ビ
    ームに整形し偏光ビームスプリツタに入射し、1/
    4波長板を経て光デイスク面を照射する光学系を
    含む光学ヘツドにおいて、該ビーム整形プリズム
    の入射側斜面に偏光膜を形成し、該ビーム整形プ
    リズムと前記偏光ビームスプリツタとの間に４５
    度フアラデー回転子と４５度旋光子を設けたこと
    を特徴とする光学ヘツド。
JP9308887U 1987-06-17 1987-06-17 Pending JPS64817U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9308887U JPS64817U (ja) 1987-06-17 1987-06-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9308887U JPS64817U (ja) 1987-06-17 1987-06-17

Publications (1)

Publication Number Publication Date
JPS64817U true JPS64817U (ja) 1989-01-05

Family

ID=30955372

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9308887U Pending JPS64817U (ja) 1987-06-17 1987-06-17

Country Status (1)

Country Link
JP (1) JPS64817U (ja)

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