JPS6118492Y2 - - Google Patents

Info

Publication number
JPS6118492Y2
JPS6118492Y2 JP1982129154U JP12915482U JPS6118492Y2 JP S6118492 Y2 JPS6118492 Y2 JP S6118492Y2 JP 1982129154 U JP1982129154 U JP 1982129154U JP 12915482 U JP12915482 U JP 12915482U JP S6118492 Y2 JPS6118492 Y2 JP S6118492Y2
Authority
JP
Japan
Prior art keywords
light beam
parallel
prism
luminous flux
triangular
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.)
Expired
Application number
JP1982129154U
Other languages
English (en)
Japanese (ja)
Other versions
JPS5933020U (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 JP12915482U priority Critical patent/JPS5933020U/ja
Publication of JPS5933020U publication Critical patent/JPS5933020U/ja
Application granted granted Critical
Publication of JPS6118492Y2 publication Critical patent/JPS6118492Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Head (AREA)
  • Optical Elements Other Than Lenses (AREA)
JP12915482U 1982-08-26 1982-08-26 光学情報処理装置 Granted JPS5933020U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12915482U JPS5933020U (ja) 1982-08-26 1982-08-26 光学情報処理装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12915482U JPS5933020U (ja) 1982-08-26 1982-08-26 光学情報処理装置

Publications (2)

Publication Number Publication Date
JPS5933020U JPS5933020U (ja) 1984-02-29
JPS6118492Y2 true JPS6118492Y2 (cs) 1986-06-05

Family

ID=30292735

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12915482U Granted JPS5933020U (ja) 1982-08-26 1982-08-26 光学情報処理装置

Country Status (1)

Country Link
JP (1) JPS5933020U (cs)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0754376B2 (ja) * 1984-03-30 1995-06-07 株式会社日立製作所 光ディスク装置
JPS6246401U (cs) * 1985-09-07 1987-03-20
JPH0728111B2 (ja) * 1986-03-20 1995-03-29 株式会社日立製作所 電気回路

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50147341A (cs) * 1974-05-15 1975-11-26

Also Published As

Publication number Publication date
JPS5933020U (ja) 1984-02-29

Similar Documents

Publication Publication Date Title
US4689780A (en) Optical recording and reproducing head
JP2002341116A (ja) 複合反射プリズム及びこれを採用した光ピックアップ装置
JPS59149315A (ja) 半導体レ−ザ用光学装置
JPS58120216A (ja) 光束合成装置
JPH08171747A (ja) 光ピックアップ装置
JPS6118492Y2 (cs)
JPH03233424A (ja) ビーム整形光学系
JPS6117103A (ja) 偏光ビ−ムスプリツタ
JPH07121899A (ja) 光ピックアップ装置
JP3319900B2 (ja) 光ピックアップ
JP3471960B2 (ja) ピックアップ装置
JP2869318B2 (ja) 光ピックアップ装置
JPH0562238A (ja) 光学装置および光ピツクアツプ装置
JPS63119024A (ja) 光ヘツド装置
JPH0980212A (ja) ビーム整形プリズム及びこれを用いた光学ヘッド
JPS61186903A (ja) 光分離素子
JPH065581B2 (ja) 光学ヘツド
JPS59167863A (ja) 光デイスク用光学系
JP3477922B2 (ja) 光ガイド部材及び光ピックアップ
JPH0352132A (ja) 光ヘッド
JP2578203B2 (ja) 光ヘッド
KR100641088B1 (ko) 광픽업장치
JPH04132024A (ja) 光学式情報記録再生装置
JPS6117232A (ja) 光ヘツド装置
JPS58143442A (ja) 情報記録再生装置