DE3752136D1 - Vorrichtung für die Steuerung der Lichtmenge - Google Patents
Vorrichtung für die Steuerung der LichtmengeInfo
- Publication number
- DE3752136D1 DE3752136D1 DE3752136T DE3752136T DE3752136D1 DE 3752136 D1 DE3752136 D1 DE 3752136D1 DE 3752136 T DE3752136 T DE 3752136T DE 3752136 T DE3752136 T DE 3752136T DE 3752136 D1 DE3752136 D1 DE 3752136D1
- Authority
- DE
- Germany
- Prior art keywords
- controlling
- light
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/068—Stabilisation of laser output parameters
- H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
- G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
- G06K15/12—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers
- G06K15/1204—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers involving the fast moving of an optical beam in the main scanning direction
- G06K15/1209—Intensity control of the optical beam
- G06K15/1214—Intensity control of the optical beam by feedback
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
- H01S5/042—Electrical excitation ; Circuits therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/0617—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium using memorised or pre-programmed laser characteristics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/068—Stabilisation of laser output parameters
- H01S5/06812—Stabilisation of laser output parameters by monitoring or fixing the threshold current or other specific points of the L-I or V-I characteristics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/068—Stabilisation of laser output parameters
- H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
- H01S5/06832—Stabilising during amplitude modulation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Laser Beam Printer (AREA)
- Semiconductor Lasers (AREA)
- Facsimile Scanning Arrangements (AREA)
- Mechanical Optical Scanning Systems (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61198990A JPH0754957B2 (ja) | 1986-08-27 | 1986-08-27 | 記録装置の光量制御装置 |
JP61198991A JPH07100377B2 (ja) | 1986-08-27 | 1986-08-27 | レ−ザ記録装置 |
JP61198988A JPH07115486B2 (ja) | 1986-08-27 | 1986-08-27 | 記録装置 |
JP61198989A JPH07100374B2 (ja) | 1986-08-27 | 1986-08-27 | 記録装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3752136D1 true DE3752136D1 (de) | 1997-12-11 |
DE3752136T2 DE3752136T2 (de) | 1998-03-26 |
Family
ID=27475949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3752136T Expired - Lifetime DE3752136T2 (de) | 1986-08-27 | 1987-08-27 | Vorrichtung für die Steuerung der Lichtmenge |
Country Status (3)
Country | Link |
---|---|
US (1) | US4890288A (de) |
EP (1) | EP0258060B1 (de) |
DE (1) | DE3752136T2 (de) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE68925852T2 (de) * | 1988-09-06 | 1996-10-17 | Canon Kk | Belichtungsstärkesteuergerät |
EP0386741A3 (de) * | 1989-03-09 | 1992-05-20 | Konica Corporation | Halbleiterlaserantriebsvorrichtung |
DE69034099T2 (de) * | 1989-09-19 | 2004-07-01 | Canon K.K. | Verfahren und Vorrichtung zur Modulation eines Halbleiterlasers oder dergleichen und System unter Verwendung derselben |
JP2905229B2 (ja) * | 1989-09-26 | 1999-06-14 | キヤノン株式会社 | 光ビーム駆動装置 |
US5019769A (en) * | 1990-09-14 | 1991-05-28 | Finisar Corporation | Semiconductor laser diode controller and laser diode biasing control method |
US5081631A (en) * | 1991-04-03 | 1992-01-14 | Eastman Kodak Company | Direct modulation of laser diodes for radiographic printers |
JP3201796B2 (ja) * | 1991-10-31 | 2001-08-27 | 株式会社リコー | 画像形成装置 |
US5260955A (en) * | 1991-12-20 | 1993-11-09 | Eastman Kodak Company | Automatically setting a threshold current for a laser diode |
US5497181A (en) * | 1992-06-29 | 1996-03-05 | Xerox Corporation | Dynamic control of individual spot exposure in an optical output device |
US5754576A (en) * | 1992-09-24 | 1998-05-19 | Canon Kabushiki Kaisha | Semiconductor laser control apparatus and image forming apparatus using the same |
US5276697A (en) * | 1992-11-04 | 1994-01-04 | Eastman Kodak Company | Laser diode automatic power control circuit with means of protection of the laser diode |
US5455837A (en) * | 1994-09-22 | 1995-10-03 | Coherent, Inc. | Flashlamp energy control circuit |
US5953690A (en) * | 1996-07-01 | 1999-09-14 | Pacific Fiberoptics, Inc. | Intelligent fiberoptic receivers and method of operating and manufacturing the same |
JPH11170603A (ja) | 1997-12-10 | 1999-06-29 | Canon Inc | 画像形成装置 |
EP0989736B1 (de) * | 1998-09-23 | 2011-04-20 | Binding Solutions LLC | Verfahren und Vorrichtung zur Steuerung eines Lasers mit Schwellenstrompegel |
US6219084B1 (en) | 1998-09-23 | 2001-04-17 | Agfa-Gevaert | Method and device for controlling a laser having a threshold current level |
WO2001059896A1 (en) * | 2000-02-09 | 2001-08-16 | Koninklijke Philips Electronics N.V. | Control circuit for a radiation source and method for controlling a radiation source |
US7149430B2 (en) * | 2001-02-05 | 2006-12-12 | Finsiar Corporation | Optoelectronic transceiver having dual access to onboard diagnostics |
US7079775B2 (en) | 2001-02-05 | 2006-07-18 | Finisar Corporation | Integrated memory mapped controller circuit for fiber optics transceiver |
US20040174915A1 (en) * | 2002-09-18 | 2004-09-09 | Adc Telecommunications, Inc. | Method for characterizing tunable lasers |
US7215891B1 (en) | 2003-06-06 | 2007-05-08 | Jds Uniphase Corporation | Integrated driving, receiving, controlling, and monitoring for optical transceivers |
KR100555728B1 (ko) * | 2003-10-16 | 2006-03-03 | 삼성전자주식회사 | 레이저 스캐닝 유닛의 광파워 밸런스 조정방법 |
JP2008218720A (ja) | 2007-03-05 | 2008-09-18 | Ricoh Co Ltd | 光量制御装置、光書き込み装置及び画像形成装置 |
JP5292808B2 (ja) * | 2007-12-28 | 2013-09-18 | 株式会社リコー | 半導体レーザ駆動装置及びその半導体レーザ駆動装置を備えた画像形成装置 |
JP4582199B2 (ja) * | 2008-06-02 | 2010-11-17 | ブラザー工業株式会社 | 光出力装置およびその装置を備えた画像形成装置 |
US8159956B2 (en) | 2008-07-01 | 2012-04-17 | Finisar Corporation | Diagnostics for serial communication busses |
JP5747635B2 (ja) * | 2011-04-27 | 2015-07-15 | 株式会社リコー | 光学装置および光学装置の制御方法、ならびに、画像形成装置 |
JP5393821B2 (ja) * | 2012-02-27 | 2014-01-22 | 京セラドキュメントソリューションズ株式会社 | 画像形成装置 |
JP6061505B2 (ja) * | 2012-06-08 | 2017-01-18 | キヤノン株式会社 | 光学走査装置及びそれを有する画像形成装置 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5337029A (en) * | 1976-09-17 | 1978-04-05 | Canon Inc | Beam recorder |
DE2847182C3 (de) * | 1978-10-30 | 1986-07-10 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Verfahren zur Modulationsstromregelung von Laserdioden |
US4268843A (en) * | 1979-02-21 | 1981-05-19 | General Electric Company | Solid state relay |
NL7907683A (nl) * | 1979-10-18 | 1981-04-22 | Philips Nv | Regelketen voor de bekrachtigingsstroom van een laser. |
US4443695A (en) * | 1980-01-25 | 1984-04-17 | Canon Kabushiki Kaisha | Apparatus for controlling the quantity of light |
FR2476945A1 (fr) * | 1980-02-22 | 1981-08-28 | Lignes Telegraph Telephon | Dispositif de regulation automatique de puissance de sortie d'un module emetteur pour systeme de transmission sur fibre optique |
JPS56133714A (en) * | 1980-03-25 | 1981-10-20 | Fujitsu Ltd | Light level controlling system of optical scanner |
JPS57162481A (en) * | 1981-03-23 | 1982-10-06 | Ibm | Control circuit for light emtting semiconductor device |
JPS5840878A (ja) * | 1981-09-04 | 1983-03-09 | Hitachi Ltd | ディジタル光ディスク用半導体レーザの駆動装置 |
JPS5894143A (ja) * | 1981-12-01 | 1983-06-04 | Matsushita Electric Ind Co Ltd | 光学的記録再生装置 |
JPS58186986A (ja) * | 1982-04-27 | 1983-11-01 | Kokusai Denshin Denwa Co Ltd <Kdd> | モニタ付分布帰還形半導体レ−ザ |
JPS58212256A (ja) * | 1982-06-03 | 1983-12-09 | Hitachi Ltd | レ−ザ光源装置 |
JPS60145680A (ja) * | 1984-01-10 | 1985-08-01 | Fujitsu Ltd | レ−ザダイオ−ド駆動回路 |
JPS60169180A (ja) * | 1984-02-10 | 1985-09-02 | Ricoh Co Ltd | 半導体レ−ザの光量制御装置 |
JP2503202B2 (ja) * | 1985-01-30 | 1996-06-05 | 株式会社リコー | 半導体レ−ザの出力制御装置 |
US4837787A (en) * | 1986-06-04 | 1989-06-06 | Konishiroku Photo Industry Co., Ltd. | Semiconductor laser device with light emission inhibiting means |
-
1987
- 1987-08-21 US US07/087,707 patent/US4890288A/en not_active Expired - Lifetime
- 1987-08-27 DE DE3752136T patent/DE3752136T2/de not_active Expired - Lifetime
- 1987-08-27 EP EP87307608A patent/EP0258060B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3752136T2 (de) | 1998-03-26 |
US4890288A (en) | 1989-12-26 |
EP0258060B1 (de) | 1997-11-05 |
EP0258060A2 (de) | 1988-03-02 |
EP0258060A3 (de) | 1989-03-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8381 | Inventor (new situation) |
Free format text: INUYAMA, TOSHIHIKO, FUJISAWA-SHI KANAGAWA-KEN, JP KIMIZUKA, JUNICHI, YOKOHAMA-SHI KANAGAWA-KEN, JP KUSANO, AKIHISA, NAKAHARA-KU KAWASAKI-SHI KANAGAWA-KEN, JP SOYA, TAKASHI NO. 102, KAWASAKI-SHI KANAGAWA-KEN, JP SATO, KAORU, YOKOHAMA-SHI KANAGAWA-KEN, JP |
|
8364 | No opposition during term of opposition |