JPS6131387Y2 - - Google Patents

Info

Publication number
JPS6131387Y2
JPS6131387Y2 JP15715780U JP15715780U JPS6131387Y2 JP S6131387 Y2 JPS6131387 Y2 JP S6131387Y2 JP 15715780 U JP15715780 U JP 15715780U JP 15715780 U JP15715780 U JP 15715780U JP S6131387 Y2 JPS6131387 Y2 JP S6131387Y2
Authority
JP
Japan
Prior art keywords
cylindrical lens
light beam
light
reflected light
reflected
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
JP15715780U
Other languages
English (en)
Japanese (ja)
Other versions
JPS5779946U (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 JP15715780U priority Critical patent/JPS6131387Y2/ja
Priority to US06/292,714 priority patent/US4406520A/en
Priority to GB8124871A priority patent/GB2082344B/en
Priority to DE19813132290 priority patent/DE3132290A1/de
Publication of JPS5779946U publication Critical patent/JPS5779946U/ja
Application granted granted Critical
Publication of JPS6131387Y2 publication Critical patent/JPS6131387Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
JP15715780U 1980-08-14 1980-10-31 Expired JPS6131387Y2 (en])

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP15715780U JPS6131387Y2 (en]) 1980-10-31 1980-10-31
US06/292,714 US4406520A (en) 1980-08-14 1981-08-13 Beam splitter optical system of signal pickup device
GB8124871A GB2082344B (en) 1980-08-14 1981-08-14 Optical beam splitter prism system of signal pickup device
DE19813132290 DE3132290A1 (de) 1980-08-14 1981-08-14 "optisches system fuer eine signalabnehmervorrichtung"

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15715780U JPS6131387Y2 (en]) 1980-10-31 1980-10-31

Publications (2)

Publication Number Publication Date
JPS5779946U JPS5779946U (en]) 1982-05-17
JPS6131387Y2 true JPS6131387Y2 (en]) 1986-09-12

Family

ID=29516283

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15715780U Expired JPS6131387Y2 (en]) 1980-08-14 1980-10-31

Country Status (1)

Country Link
JP (1) JPS6131387Y2 (en])

Also Published As

Publication number Publication date
JPS5779946U (en]) 1982-05-17

Similar Documents

Publication Publication Date Title
JP3548259B2 (ja) 光磁気ヘッド装置
JPH0582658B2 (en])
JP2798185B2 (ja) 光磁気式情報再生装置用光学ヘッド
JPS6131387Y2 (en])
JPS6322370B2 (en])
JPS6334446B2 (en])
JPH06333289A (ja) 光ヘッド
JPH07244865A (ja) 光ピックアップ
JPS6123575B2 (en])
JP2637739B2 (ja) 磁気光学ヘッド
JP2698121B2 (ja) 光磁気検出装置
JPS5848244A (ja) 光情報読取装置
JP2659239B2 (ja) 光ヘッド
JP3166783B2 (ja) 光ヘッド
JPS6337827A (ja) 光ピツクアツプ装置
JPH0328401Y2 (en])
JPS6327689B2 (en])
US5905254A (en) Compact sized optical pickup system
JPS61186903A (ja) 光分離素子
JPH0120498B2 (en])
JPH04170724A (ja) 光学式ピックアップ装置
JPH02108247A (ja) 光ピックアップ装置
JPH06290502A (ja) 光ピックアップ
JPH033127A (ja) 光学ヘッド
JPS62285234A (ja) 反射型光学デイスクの読取り装置