JPH0621048Y2 - 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
JPH0621048Y2
JPH0621048Y2 JP15466788U JP15466788U JPH0621048Y2 JP H0621048 Y2 JPH0621048 Y2 JP H0621048Y2 JP 15466788 U JP15466788 U JP 15466788U JP 15466788 U JP15466788 U JP 15466788U JP H0621048 Y2 JPH0621048 Y2 JP H0621048Y2
Authority
JP
Japan
Prior art keywords
focus
error signal
objective lens
voltage
focus error
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 - Fee Related
Application number
JP15466788U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0276321U (en]
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 JP15466788U priority Critical patent/JPH0621048Y2/ja
Publication of JPH0276321U publication Critical patent/JPH0276321U/ja
Application granted granted Critical
Publication of JPH0621048Y2 publication Critical patent/JPH0621048Y2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
JP15466788U 1988-11-28 1988-11-28 光ピックアップのフォーカス制御装置 Expired - Fee Related JPH0621048Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15466788U JPH0621048Y2 (ja) 1988-11-28 1988-11-28 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
JP15466788U JPH0621048Y2 (ja) 1988-11-28 1988-11-28 光ピックアップのフォーカス制御装置

Publications (2)

Publication Number Publication Date
JPH0276321U JPH0276321U (en]) 1990-06-12
JPH0621048Y2 true JPH0621048Y2 (ja) 1994-06-01

Family

ID=31431602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15466788U Expired - Fee Related JPH0621048Y2 (ja) 1988-11-28 1988-11-28 光ピックアップのフォーカス制御装置

Country Status (1)

Country Link
JP (1) JPH0621048Y2 (en])

Also Published As

Publication number Publication date
JPH0276321U (en]) 1990-06-12

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Legal Events

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LAPS Cancellation because of no payment of annual fees