JPH0518185B2 - - Google Patents

Info

Publication number: JPH0518185B2
Authority: JP; Japan
Prior art keywords: current source; output; semiconductor laser; current; recording
Prior art date: 1985-09-18
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

JP60207987A

Other languages

English (en)

Japanese (ja)

Other versions

JPS6266424A (ja

Inventor

Hiroshi Fuji

Yukio Kurata

Takashi Iwaki

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Sharp Corp

Original Assignee

Sharp Corp

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.)

1985-09-18

Filing date

1985-09-18

Publication date

1993-03-11

1985-09-18 Application filed by Sharp Corp filed Critical Sharp Corp

1985-09-18 Priority to JP60207987A priority Critical patent/JPS6266424A/ja

1987-03-25 Publication of JPS6266424A publication Critical patent/JPS6266424A/ja

1993-03-11 Publication of JPH0518185B2 publication Critical patent/JPH0518185B2/ja

Status Granted legal-status Critical Current

Links

239000004065 semiconductor Substances 0.000 claims description 42
230000003287 optical effect Effects 0.000 claims description 14
238000010304 firing Methods 0.000 claims description 9
238000001514 detection method Methods 0.000 claims description 4
230000010355 oscillation Effects 0.000 description 23
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
238000010586 diagram Methods 0.000 description 7
239000010408 film Substances 0.000 description 5
230000008014 freezing Effects 0.000 description 4
238000007710 freezing Methods 0.000 description 4
230000001678 irradiating effect Effects 0.000 description 2
230000005415 magnetization Effects 0.000 description 2
238000000034 method Methods 0.000 description 2
230000003595 spectral effect Effects 0.000 description 2
239000000758 substrate Substances 0.000 description 2
229910000640 Fe alloy Inorganic materials 0.000 description 1
230000032683 aging Effects 0.000 description 1
230000006866 deterioration Effects 0.000 description 1
230000000694 effects Effects 0.000 description 1
239000011521 glass Substances 0.000 description 1
230000010365 information processing Effects 0.000 description 1
230000010287 polarization Effects 0.000 description 1
238000004544 sputter deposition Methods 0.000 description 1
239000010409 thin film Substances 0.000 description 1

Landscapes

Optical Recording Or Reproduction (AREA)
Optical Head (AREA)
Semiconductor Lasers (AREA)

JP60207987A 1985-09-18 1985-09-18 光量制御装置 Granted JPS6266424A (ja)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
JP60207987A JPS6266424A (ja)	1985-09-18	1985-09-18	光量制御装置

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP60207987A JPS6266424A (ja)	1985-09-18	1985-09-18	光量制御装置

Related Child Applications (1)

Application Number	Title	Priority Date	Filing Date
JP6057155A Division JP2524479B2 (ja)	1994-03-28	1994-03-28	光記録媒体

Publications (2)

Publication Number	Publication Date
JPS6266424A JPS6266424A (ja)	1987-03-25
JPH0518185B2 true JPH0518185B2 (fr)	1993-03-11

Family

ID=16548804

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP60207987A Granted JPS6266424A (ja)	1985-09-18	1985-09-18	光量制御装置

Country Status (1)

Country	Link
JP (1)	JPS6266424A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2838890B2 (ja) *	1987-11-27	1998-12-16	オリンパス光学工業株式会社	光学式情報記録再生装置
JPH0218722A (ja) *	1988-07-05	1990-01-23	Sony Corp	レーザ発光強度制御回路
US5034334A (en) *	1989-10-13	1991-07-23	At&T Bell Laboratories	Method of producing a semiconductor laser adapted for use in an analog optical communications system
JP2525943B2 (ja) *	1990-08-02	1996-08-21	富士通株式会社	光学記録再生装置のレ―ザダイオ―ド制御方式
JP2835250B2 (ja) *	1992-08-10	1998-12-14	シャープ株式会社	光ディスク記録再生装置における光量制御装置
TW525157B (en) *	2000-10-13	2003-03-21	Sony Corp	Current generation circuit and method
JP5207559B2 (ja)	2010-12-15	2013-06-12	パナソニック株式会社	光情報記録再生装置

1985
- 1985-09-18 JP JP60207987A patent/JPS6266424A/ja active Granted

Also Published As

Publication number	Publication date
JPS6266424A (ja)	1987-03-25

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