JPH0328401Y2 - - Google Patents

Info

Publication number
JPH0328401Y2
JPH0328401Y2 JP1980157159U JP15715980U JPH0328401Y2 JP H0328401 Y2 JPH0328401 Y2 JP H0328401Y2 JP 1980157159 U JP1980157159 U JP 1980157159U JP 15715980 U JP15715980 U JP 15715980U JP H0328401 Y2 JPH0328401 Y2 JP H0328401Y2
Authority
JP
Japan
Prior art keywords
light
cylindrical
recording medium
beam splitter
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
JP1980157159U
Other languages
English (en)
Japanese (ja)
Other versions
JPS5779802U (OSRAM
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 JP1980157159U priority Critical patent/JPH0328401Y2/ja
Priority to US06/292,714 priority patent/US4406520A/en
Priority to DE19813132290 priority patent/DE3132290A1/de
Priority to GB8124871A priority patent/GB2082344B/en
Publication of JPS5779802U publication Critical patent/JPS5779802U/ja
Application granted granted Critical
Publication of JPH0328401Y2 publication Critical patent/JPH0328401Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Optical Elements Other Than Lenses (AREA)
  • Optical Head (AREA)
JP1980157159U 1980-08-14 1980-10-31 Expired JPH0328401Y2 (OSRAM)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1980157159U JPH0328401Y2 (OSRAM) 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
DE19813132290 DE3132290A1 (de) 1980-08-14 1981-08-14 "optisches system fuer eine signalabnehmervorrichtung"
GB8124871A GB2082344B (en) 1980-08-14 1981-08-14 Optical beam splitter prism system of signal pickup device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1980157159U JPH0328401Y2 (OSRAM) 1980-10-31 1980-10-31

Publications (2)

Publication Number Publication Date
JPS5779802U JPS5779802U (OSRAM) 1982-05-17
JPH0328401Y2 true JPH0328401Y2 (OSRAM) 1991-06-19

Family

ID=29516285

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1980157159U Expired JPH0328401Y2 (OSRAM) 1980-08-14 1980-10-31

Country Status (1)

Country Link
JP (1) JPH0328401Y2 (OSRAM)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5238942A (en) * 1975-09-23 1977-03-25 Nippon Shinku Kogaku Kk Polarizer prism
US4092061A (en) * 1976-12-29 1978-05-30 International Business Machines Corp. Side-coupling of light for an optical fiber
JPS5537230U (OSRAM) * 1978-08-30 1980-03-10
JPS5595912A (en) * 1979-01-11 1980-07-21 Pioneer Video Corp Polarizing beam splitter

Also Published As

Publication number Publication date
JPS5779802U (OSRAM) 1982-05-17

Similar Documents

Publication Publication Date Title
EP0339722B1 (en) Arrangement for optically scanning a magneto-optical carrier
KR950000899B1 (ko) 광학헤드
JPH0328401Y2 (OSRAM)
JPH1069681A (ja) 光磁気記録／再生装置
JPS6117103A (ja) 偏光ビ−ムスプリツタ
JPH06168478A (ja) ビーム整形及びビーム分離装置
US5438562A (en) Optical head for recording and/or reproducing information on and/or from opto-magnetic record medium
JPS6123575B2 (OSRAM)
JP2659239B2 (ja) 光ヘッド
KR0170521B1 (ko) 광픽업시스템의 빔 정형장치
JP2625738B2 (ja) 光学ヘッド
US5199013A (en) Optical head apparatus applicable to optical disc apparatus
JPH0445132Y2 (OSRAM)
JP2581779B2 (ja) 光磁気記録媒体からの信号検出装置
JPS6131387Y2 (OSRAM)
JP2748052B2 (ja) 光分離素子とこれを使用した受光光学装置
KR0135859B1 (ko) 광헤드
JPS60117426A (ja) 光情報記録再生装置
JP2578203B2 (ja) 光ヘッド
KR950000894B1 (ko) 광디스크 드라이버의 초점 오차 검출방법
JPS6334441B2 (OSRAM)
JPH01269248A (ja) 光記録再生装置
JP2707361B2 (ja) 光ピックアップの光学装置
JPS63302452A (ja) 光磁気信号検出装置
JPS63187440A (ja) 光学ヘツド