JPS63114409U - - Google Patents

Info

Publication number
JPS63114409U
JPS63114409U JP445887U JP445887U JPS63114409U JP S63114409 U JPS63114409 U JP S63114409U JP 445887 U JP445887 U JP 445887U JP 445887 U JP445887 U JP 445887U JP S63114409 U JPS63114409 U JP S63114409U
Authority
JP
Japan
Prior art keywords
focus
objective lens
signal
focus servo
control device
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.)
Granted
Application number
JP445887U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0636495Y2 (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 JP1987004458U priority Critical patent/JPH0636495Y2/ja
Publication of JPS63114409U publication Critical patent/JPS63114409U/ja
Application granted granted Critical
Publication of JPH0636495Y2 publication Critical patent/JPH0636495Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
JP1987004458U 1987-01-16 1987-01-16 フォーカスサーボ制御装置 Expired - Lifetime JPH0636495Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987004458U JPH0636495Y2 (ja) 1987-01-16 1987-01-16 フォーカスサーボ制御装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987004458U JPH0636495Y2 (ja) 1987-01-16 1987-01-16 フォーカスサーボ制御装置

Publications (2)

Publication Number Publication Date
JPS63114409U true JPS63114409U (de) 1988-07-23
JPH0636495Y2 JPH0636495Y2 (ja) 1994-09-21

Family

ID=30785139

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987004458U Expired - Lifetime JPH0636495Y2 (ja) 1987-01-16 1987-01-16 フォーカスサーボ制御装置

Country Status (1)

Country Link
JP (1) JPH0636495Y2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02195517A (ja) * 1989-01-25 1990-08-02 Canon Inc 光学的情報記録再生装置
JPH05109085A (ja) * 1991-10-16 1993-04-30 Mitsubishi Electric Corp フオーカス制御装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5919246A (ja) * 1982-07-24 1984-01-31 Pioneer Electronic Corp 光学式情報読取装置におけるフオ−カスサ−ボ引込装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5919246A (ja) * 1982-07-24 1984-01-31 Pioneer Electronic Corp 光学式情報読取装置におけるフオ−カスサ−ボ引込装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02195517A (ja) * 1989-01-25 1990-08-02 Canon Inc 光学的情報記録再生装置
JPH05109085A (ja) * 1991-10-16 1993-04-30 Mitsubishi Electric Corp フオーカス制御装置

Also Published As

Publication number Publication date
JPH0636495Y2 (ja) 1994-09-21

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