JPH0510277Y2 - - Google Patents

Info

Publication number
JPH0510277Y2
JPH0510277Y2 JP1986056073U JP5607386U JPH0510277Y2 JP H0510277 Y2 JPH0510277 Y2 JP H0510277Y2 JP 1986056073 U JP1986056073 U JP 1986056073U JP 5607386 U JP5607386 U JP 5607386U JP H0510277 Y2 JPH0510277 Y2 JP H0510277Y2
Authority
JP
Japan
Prior art keywords
focus
reflected light
signal
level
amount
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
JP1986056073U
Other languages
English (en)
Japanese (ja)
Other versions
JPS62168159U (enrdf_load_stackoverflow
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 JP1986056073U priority Critical patent/JPH0510277Y2/ja
Publication of JPS62168159U publication Critical patent/JPS62168159U/ja
Application granted granted Critical
Publication of JPH0510277Y2 publication Critical patent/JPH0510277Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
JP1986056073U 1986-04-16 1986-04-16 Expired - Lifetime JPH0510277Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986056073U JPH0510277Y2 (enrdf_load_stackoverflow) 1986-04-16 1986-04-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986056073U JPH0510277Y2 (enrdf_load_stackoverflow) 1986-04-16 1986-04-16

Publications (2)

Publication Number Publication Date
JPS62168159U JPS62168159U (enrdf_load_stackoverflow) 1987-10-24
JPH0510277Y2 true JPH0510277Y2 (enrdf_load_stackoverflow) 1993-03-12

Family

ID=30884562

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986056073U Expired - Lifetime JPH0510277Y2 (enrdf_load_stackoverflow) 1986-04-16 1986-04-16

Country Status (1)

Country Link
JP (1) JPH0510277Y2 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2870167B2 (ja) * 1990-09-13 1999-03-10 松下電器産業株式会社 光ディスク装置
JP2598165B2 (ja) * 1990-11-29 1997-04-09 ソニー株式会社 光ディスク記録再生装置
EP0903735B1 (en) * 1997-01-10 2004-12-15 Sony Corporation Optical disk device and method for discriminating optical disk

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5726769U (enrdf_load_stackoverflow) * 1980-07-17 1982-02-12
JPS5750357A (en) * 1980-09-08 1982-03-24 Matsushita Electric Ind Co Ltd Disk reproducer

Also Published As

Publication number Publication date
JPS62168159U (enrdf_load_stackoverflow) 1987-10-24

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