JPH01121120U - - Google Patents

Info

Publication number
JPH01121120U
JPH01121120U JP1681288U JP1681288U JPH01121120U JP H01121120 U JPH01121120 U JP H01121120U JP 1681288 U JP1681288 U JP 1681288U JP 1681288 U JP1681288 U JP 1681288U JP H01121120 U JPH01121120 U JP H01121120U
Authority
JP
Japan
Prior art keywords
focusing lens
focus error
detection device
error detection
split photodetector
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
JP1681288U
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 JP1681288U priority Critical patent/JPH01121120U/ja
Publication of JPH01121120U publication Critical patent/JPH01121120U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP1681288U 1988-02-10 1988-02-10 Pending JPH01121120U (US06623731-20030923-C00012.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1681288U JPH01121120U (US06623731-20030923-C00012.png) 1988-02-10 1988-02-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1681288U JPH01121120U (US06623731-20030923-C00012.png) 1988-02-10 1988-02-10

Publications (1)

Publication Number Publication Date
JPH01121120U true JPH01121120U (US06623731-20030923-C00012.png) 1989-08-16

Family

ID=31230061

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1681288U Pending JPH01121120U (US06623731-20030923-C00012.png) 1988-02-10 1988-02-10

Country Status (1)

Country Link
JP (1) JPH01121120U (US06623731-20030923-C00012.png)

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