JPH0722743Y2 - 光ピックアップのフォーカス制御装置 - Google Patents

光ピックアップのフォーカス制御装置

Info

Publication number
JPH0722743Y2
JPH0722743Y2 JP1990130711U JP13071190U JPH0722743Y2 JP H0722743 Y2 JPH0722743 Y2 JP H0722743Y2 JP 1990130711 U JP1990130711 U JP 1990130711U JP 13071190 U JP13071190 U JP 13071190U JP H0722743 Y2 JPH0722743 Y2 JP H0722743Y2
Authority
JP
Japan
Prior art keywords
focus
signal
circuit
voltage
bias
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 - Lifetime
Application number
JP1990130711U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0486223U (enrdf_load_stackoverflow
Inventor
伸一 荒井
Original Assignee
日本コロムビア株式会社
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 by 日本コロムビア株式会社 filed Critical 日本コロムビア株式会社
Priority to JP1990130711U priority Critical patent/JPH0722743Y2/ja
Publication of JPH0486223U publication Critical patent/JPH0486223U/ja
Application granted granted Critical
Publication of JPH0722743Y2 publication Critical patent/JPH0722743Y2/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)
JP1990130711U 1990-11-30 1990-11-30 光ピックアップのフォーカス制御装置 Expired - Lifetime JPH0722743Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990130711U JPH0722743Y2 (ja) 1990-11-30 1990-11-30 光ピックアップのフォーカス制御装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990130711U JPH0722743Y2 (ja) 1990-11-30 1990-11-30 光ピックアップのフォーカス制御装置

Publications (2)

Publication Number Publication Date
JPH0486223U JPH0486223U (enrdf_load_stackoverflow) 1992-07-27
JPH0722743Y2 true JPH0722743Y2 (ja) 1995-05-24

Family

ID=31878028

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990130711U Expired - Lifetime JPH0722743Y2 (ja) 1990-11-30 1990-11-30 光ピックアップのフォーカス制御装置

Country Status (1)

Country Link
JP (1) JPH0722743Y2 (enrdf_load_stackoverflow)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0433543Y2 (enrdf_load_stackoverflow) * 1986-06-12 1992-08-11
JPS63105921U (enrdf_load_stackoverflow) * 1986-12-27 1988-07-08

Also Published As

Publication number Publication date
JPH0486223U (enrdf_load_stackoverflow) 1992-07-27

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