JPH0510277Y2 - - Google Patents

Info

Publication number: JPH0510277Y2
Authority: JP; Japan
Prior art keywords: focus; reflected light; signal; level; amount
Prior art date: 1986-04-16
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 (sv

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.)

1986-04-16

Filing date

1986-04-16

Publication date

1993-03-12

1986-04-16 Application filed filed Critical

1986-04-16 Priority to JP1986056073U priority Critical patent/JPH0510277Y2/ja

1987-10-24 Publication of JPS62168159U publication Critical patent/JPS62168159U/ja

1993-03-12 Application granted granted Critical

1993-03-12 Publication of JPH0510277Y2 publication Critical patent/JPH0510277Y2/ja

2001-04-16 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

230000003287 optical effect Effects 0.000 claims description 34
238000001514 detection method Methods 0.000 claims description 7
238000010586 diagram Methods 0.000 description 6
238000000034 method Methods 0.000 description 5
238000013459 approach Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
230000007257 malfunction Effects 0.000 description 1
230000002093 peripheral effect Effects 0.000 description 1
230000010287 polarization Effects 0.000 description 1

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 (sv)

Priority Applications (1)

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

Applications Claiming Priority (1)

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

Publications (2)

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

Family

ID=30884562

Family Applications (1)

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

Country Status (1)

Country	Link
JP (1)	JPH0510277Y2 (sv)

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
WO1998031012A1 (fr) *	1997-01-10	1998-07-16	Sony Corporation	Systeme de disques optiques et systeme discernant les disques optiques

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5750357A (en) *	1980-09-08	1982-03-24	Matsushita Electric Ind Co Ltd	Disk reproducer
JPS5726769B2 (sv) *	1976-01-23	1982-06-07

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5726769U (sv) *	1980-07-17	1982-02-12

1986
- 1986-04-16 JP JP1986056073U patent/JPH0510277Y2/ja not_active Expired - Lifetime

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5726769B2 (sv) *	1976-01-23	1982-06-07
JPS5750357A (en) *	1980-09-08	1982-03-24	Matsushita Electric Ind Co Ltd	Disk reproducer

Also Published As

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

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