JPS61174026U - - Google Patents

Info

Publication number
JPS61174026U
JPS61174026U JP5632785U JP5632785U JPS61174026U JP S61174026 U JPS61174026 U JP S61174026U JP 5632785 U JP5632785 U JP 5632785U JP 5632785 U JP5632785 U JP 5632785U JP S61174026 U JPS61174026 U JP S61174026U
Authority
JP
Japan
Prior art keywords
numerical aperture
condensing lens
detector
small
recording disk
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
JP5632785U
Other languages
English (en)
Japanese (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 JP5632785U priority Critical patent/JPS61174026U/ja
Publication of JPS61174026U publication Critical patent/JPS61174026U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Optical Head (AREA)
JP5632785U 1985-04-16 1985-04-16 Pending JPS61174026U (OSRAM)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5632785U JPS61174026U (OSRAM) 1985-04-16 1985-04-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5632785U JPS61174026U (OSRAM) 1985-04-16 1985-04-16

Publications (1)

Publication Number Publication Date
JPS61174026U true JPS61174026U (OSRAM) 1986-10-29

Family

ID=30579818

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5632785U Pending JPS61174026U (OSRAM) 1985-04-16 1985-04-16

Country Status (1)

Country Link
JP (1) JPS61174026U (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996024130A1 (en) * 1995-01-31 1996-08-08 Sony Corporation Device for reproducing optical recording medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5369006A (en) * 1976-11-30 1978-06-20 Sony Corp Reproducer of disc form signal recording media

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5369006A (en) * 1976-11-30 1978-06-20 Sony Corp Reproducer of disc form signal recording media

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996024130A1 (en) * 1995-01-31 1996-08-08 Sony Corporation Device for reproducing optical recording medium
US6034936A (en) * 1995-01-31 2000-03-07 Sony Corporation Optical recording medium reproducing apparatus for reproducing low density and high density recording media

Similar Documents

Publication Publication Date Title
JPS61174026U (OSRAM)
JPS59112326U (ja) 光学ヘツド
JPS58159641U (ja) 光学式情報記録再生装置
JPS6157320U (OSRAM)
JPS62142726U (OSRAM)
JPS61167059U (OSRAM)
JPS62142724U (OSRAM)
JPS58131435U (ja) 光学的記録再生装置における焦点調整用レンズ
JPH032481U (OSRAM)
JPS6190029U (OSRAM)
JPS59140650A (ja) 光ヘツド
JPS61140429U (OSRAM)
JPS61203428U (OSRAM)
JPS5843634U (ja) 記録再生用ピツクアツプ
JPH01154527U (OSRAM)
JPS61140430U (OSRAM)
JPS6313415U (OSRAM)
JPS60127630U (ja) 記録情報再生装置
JPS61105919U (OSRAM)
JPH03102114U (OSRAM)
JPH0449324U (OSRAM)
JPS61121520U (OSRAM)
JPS61140434U (OSRAM)
JPS6198229U (OSRAM)
JPS60132623U (ja) 光学ヘツド