ATE249060T1 - Verfahren und vorrichtung zur modulation eines halbleiterlasers oder dergleichen und system unter verwendung derselben - Google Patents

Verfahren und vorrichtung zur modulation eines halbleiterlasers oder dergleichen und system unter verwendung derselben

Info

Publication number
ATE249060T1
ATE249060T1 AT90117935T AT90117935T ATE249060T1 AT E249060 T1 ATE249060 T1 AT E249060T1 AT 90117935 T AT90117935 T AT 90117935T AT 90117935 T AT90117935 T AT 90117935T AT E249060 T1 ATE249060 T1 AT E249060T1
Authority
AT
Austria
Prior art keywords
light
semiconductor laser
modulating
same
modulation method
Prior art date
Application number
AT90117935T
Other languages
English (en)
Inventor
Hitoshi Inoue
Tatsuya Yamazaki
Original Assignee
Canon Kk
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
Priority claimed from JP1243771A external-priority patent/JP2692984B2/ja
Priority claimed from JP2182255A external-priority patent/JPH0710089B2/ja
Priority claimed from JP2192272A external-priority patent/JP2840403B2/ja
Priority claimed from JP2198862A external-priority patent/JPH0483465A/ja
Priority claimed from JP2199743A external-priority patent/JPH0483661A/ja
Priority claimed from JP2199741A external-priority patent/JPH0483660A/ja
Priority claimed from JP19974490A external-priority patent/JP2941907B2/ja
Priority claimed from JP2199742A external-priority patent/JPH0483662A/ja
Application filed by Canon Kk filed Critical Canon Kk
Application granted granted Critical
Publication of ATE249060T1 publication Critical patent/ATE249060T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
    • H04N1/4005—Circuits exciting or modulating particular heads for reproducing continuous tone value scales with regulating circuits, e.g. dependent upon ambient temperature or feedback control
    • 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
    • H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/06209—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in single-section lasers
    • H01S5/06213—Amplitude modulation
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
    • H04N1/40037—Circuits exciting or modulating particular heads for reproducing continuous tone value scales the reproducing element being a laser
    • 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
    • H01S5/0427—Electrical excitation ; Circuits therefor for applying modulation to the laser
    • 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
    • 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
    • H01S5/06835—Stabilising during pulse modulation or generation

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Nonlinear Science (AREA)
  • Semiconductor Lasers (AREA)
  • Laser Beam Printer (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Facsimile Scanning Arrangements (AREA)
AT90117935T 1989-09-19 1990-09-18 Verfahren und vorrichtung zur modulation eines halbleiterlasers oder dergleichen und system unter verwendung derselben ATE249060T1 (de)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP1243771A JP2692984B2 (ja) 1989-09-19 1989-09-19 レーザ記録装置
JP2182255A JPH0710089B2 (ja) 1990-07-09 1990-07-09 光ビーム記録装置
JP2192272A JP2840403B2 (ja) 1990-07-19 1990-07-19 光ビーム記録装置
JP2198862A JPH0483465A (ja) 1990-07-25 1990-07-25 光ビーム記録装置
JP2199743A JPH0483661A (ja) 1990-07-27 1990-07-27 光変調装置
JP2199741A JPH0483660A (ja) 1990-07-27 1990-07-27 光変調装置および画像記録装置
JP19974490A JP2941907B2 (ja) 1990-07-27 1990-07-27 光変調装置及び光ビーム記録装置
JP2199742A JPH0483662A (ja) 1990-07-27 1990-07-27 記録方式

Publications (1)

Publication Number Publication Date
ATE249060T1 true ATE249060T1 (de) 2003-09-15

Family

ID=27573352

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90117935T ATE249060T1 (de) 1989-09-19 1990-09-18 Verfahren und vorrichtung zur modulation eines halbleiterlasers oder dergleichen und system unter verwendung derselben

Country Status (4)

Country Link
US (1) US5270736A (de)
EP (1) EP0418819B1 (de)
AT (1) ATE249060T1 (de)
DE (1) DE69034099T2 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5497181A (en) * 1992-06-29 1996-03-05 Xerox Corporation Dynamic control of individual spot exposure in an optical output device
US6501492B1 (en) * 1992-11-13 2002-12-31 Canon Kabushiki Kaisha Image forming apparatus for outputting image in response to digital image signal
IL118458A (en) * 1995-05-30 2000-08-31 Asahi Optical Co Ltd Light intensity controlling device
US5874981A (en) * 1995-09-19 1999-02-23 Eastman Kodak Company Combined pulse-width and amplitude modulation of exposing laser beam for thermal dye transfer
IL120112A (en) * 1996-01-31 2000-06-01 Ashai Kogaku Kogyo Kabushiki K Scanning optical device
US5764664A (en) * 1996-05-17 1998-06-09 Eastman Kodak Company Direct modulation method for laser diode in a laser film printer
JPH10138557A (ja) * 1996-11-12 1998-05-26 Canon Inc 画像記録装置
JP2003011419A (ja) * 2001-06-29 2003-01-15 Dainippon Screen Mfg Co Ltd 画像記録装置
JP4975348B2 (ja) * 2006-03-31 2012-07-11 住友電工デバイス・イノベーション株式会社 レーザダイオード駆動回路、電子回路及びデューティ制御方法
JP4873700B2 (ja) * 2006-06-13 2012-02-08 キヤノン株式会社 光量制御装置、光ビーム走査装置および画像形成装置
US8162483B2 (en) * 2009-06-25 2012-04-24 Eastman Kodak Company Hierarchical light intensity control in light projector
US8444275B2 (en) 2010-08-12 2013-05-21 Eastman Kodak Company Light source control for projector with multiple pulse-width modulated light sources
US8923571B2 (en) * 2012-07-16 2014-12-30 Hewlett-Packard Development Company, L.P. Automated camera flat fielding and alignment

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE282908C (de) 1900-01-01
JPS523439A (en) * 1975-06-26 1977-01-11 Dainippon Screen Mfg Co Ltd Safty appliance of light quantity for exposure at video scanning recor d
US4114018A (en) * 1976-09-30 1978-09-12 Lasag Ag Method for ablating metal workpieces with laser radiation
FR2390968A1 (fr) * 1977-05-16 1978-12-15 Skovajsa Joseph Dispositif de traitement local d'un patient, notamment pour acupuncture ou auriculotherapie
US4237427A (en) * 1978-06-16 1980-12-02 International Telephone And Telegraph Corporation Apparatus for stabilizing a laser
US4412331A (en) * 1981-04-22 1983-10-25 M/A-Com Dcc, Inc. Feedback circuit for controlling the peak optical output power of an injection laser
US4583128A (en) * 1984-08-27 1986-04-15 Minnesota Mining And Manufacturing Company Continuous tone recording system incorporating feedback control circuit
US4625315A (en) * 1984-08-27 1986-11-25 Minnesota Mining And Manufacturing Company Apparatus and circuitry for stabilizing laser diode output for analog modulation
US4807047A (en) * 1985-10-04 1989-02-21 Fujitsu Limited Electro luminescence device and electrophotographic printing system using the same
JP2534656B2 (ja) * 1986-02-14 1996-09-18 ミノルタ株式会社 半導体レ−ザ−による静電潜像形成装置
US4730112A (en) * 1986-03-07 1988-03-08 Hibshman Corporation Oxygen measurement using visible radiation
US4890288A (en) * 1986-08-27 1989-12-26 Canon Kabushiki Kaisha Light quantity control device
DE3750013T2 (de) * 1986-10-20 1994-09-29 Fuji Photo Film Co Ltd Laserstrahlabtastverfahren und -vorrichtung.
US4967284A (en) * 1987-10-19 1990-10-30 Ricoh Company, Ltd. Image forming apparatus and method of controlling output of semiconductor laser

Also Published As

Publication number Publication date
EP0418819A2 (de) 1991-03-27
EP0418819A3 (en) 1991-11-13
DE69034099T2 (de) 2004-07-01
DE69034099D1 (de) 2003-10-09
US5270736A (en) 1993-12-14
EP0418819B1 (de) 2003-09-03

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