DE69416541T2 - Im Amplitudenmodulations- und Pulsamplituden-Modulationsverfahren betriebene Laserdiode - Google Patents

Im Amplitudenmodulations- und Pulsamplituden-Modulationsverfahren betriebene Laserdiode

Info

Publication number
DE69416541T2
DE69416541T2 DE69416541T DE69416541T DE69416541T2 DE 69416541 T2 DE69416541 T2 DE 69416541T2 DE 69416541 T DE69416541 T DE 69416541T DE 69416541 T DE69416541 T DE 69416541T DE 69416541 T2 DE69416541 T2 DE 69416541T2
Authority
DE
Germany
Prior art keywords
amplitude modulation
laser diode
diode operated
modulation method
pulse amplitude
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 - Fee Related
Application number
DE69416541T
Other languages
English (en)
Other versions
DE69416541D1 (de
Inventor
James Glenn Davis
James A Hardy
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 by Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of DE69416541D1 publication Critical patent/DE69416541D1/de
Application granted granted Critical
Publication of DE69416541T2 publication Critical patent/DE69416541T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04N1/40043—Circuits exciting or modulating particular heads for reproducing continuous tone value scales using more than one type of modulation, e.g. pulse width modulation and 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
    • H01S5/062—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
    • 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
    • H01S5/06—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
    • H01S5/06216—Pulse modulation or generation

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Laser Beam Printer (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Semiconductor Lasers (AREA)
DE69416541T 1993-05-17 1994-05-16 Im Amplitudenmodulations- und Pulsamplituden-Modulationsverfahren betriebene Laserdiode Expired - Fee Related DE69416541T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/062,082 US5426452A (en) 1993-05-17 1993-05-17 Laser diode operated in amplitude modulation and pulse amplitude modes

Publications (2)

Publication Number Publication Date
DE69416541D1 DE69416541D1 (de) 1999-03-25
DE69416541T2 true DE69416541T2 (de) 1999-09-16

Family

ID=22040107

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69416541T Expired - Fee Related DE69416541T2 (de) 1993-05-17 1994-05-16 Im Amplitudenmodulations- und Pulsamplituden-Modulationsverfahren betriebene Laserdiode

Country Status (4)

Country Link
US (1) US5426452A (de)
EP (1) EP0625842B1 (de)
JP (1) JP3705612B2 (de)
DE (1) DE69416541T2 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5546111A (en) * 1993-12-06 1996-08-13 Xerox Coporation Image contrast improvement technique for output scanning systems
US6121984A (en) * 1995-01-11 2000-09-19 Texas Instruments Incorporated DMD modulated continuous wave light source for imaging systems
US7176948B2 (en) * 2000-04-12 2007-02-13 Honeywell International Inc. Method, apparatus and computer program product for controlling LED backlights and for improved pulse width modulation resolution
US6430136B1 (en) 2000-11-07 2002-08-06 Creo Inc. Multimode multi-track optical recording system
US6646669B2 (en) 2000-12-14 2003-11-11 Creo Inc. Multimode multi-track optical recording system
CA2358169A1 (en) * 2001-10-01 2003-04-01 Creo Products Inc. Method and apparatus for illuminating a spatial light modulator
US7483458B2 (en) 2006-10-16 2009-01-27 Corning Incorporated Wavelength control in semiconductor lasers
WO2014094827A1 (en) * 2012-12-18 2014-06-26 Lemoptix Sa A laser driver and method of operating a laser
JP2016004195A (ja) * 2014-06-18 2016-01-12 株式会社Ｊｖｃケンウッド 光源駆動装置及び画像表示装置
WO2015194376A1 (ja) * 2014-06-18 2015-12-23 株式会社Ｊｖｃケンウッド 光源駆動装置及び画像表示装置
US9654747B2 (en) 2015-04-13 2017-05-16 Intersil Americas LLC Scanning projectors that use multiple pulses per pixel period to reduce color shifts, and methods and controllers for use therewith
US9503701B2 (en) 2015-04-13 2016-11-22 Intersil Americas LLC Scanning projectors that use guard bands to reduce color shifts, and methods and controllers for use therewith
US11489310B2 (en) * 2017-04-07 2022-11-01 Ii-Vi Delaware, Inc. Optical power monitoring using dual modulation

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56153333A (en) * 1980-04-30 1981-11-27 Fuji Photo Film Co Ltd Laser recorder
US4679057A (en) * 1984-11-22 1987-07-07 Minolta Camera Kabushiki Kaisha Laser recording apparatus
JP2524108B2 (ja) * 1986-02-24 1996-08-14 富士写真フイルム株式会社 光走査記録装置
US4799069A (en) * 1986-04-18 1989-01-17 Minolta Camera Kabushiki Kaisha Laser recording apparatus
JPS63167559A (ja) * 1986-12-29 1988-07-11 Fuji Photo Film Co Ltd 光走査記録装置
JPH0618422B2 (ja) * 1987-10-20 1994-03-09 富士写真フイルム株式会社 レーザ記録装置
US4774710A (en) * 1988-01-07 1988-09-27 Eastman Kodak Company Apparatus and method for controlling a laser diode to generate a linear illuminative output
JPH01258953A (ja) * 1988-04-08 1989-10-16 Ricoh Co Ltd レーザ書込み装置
JP2774521B2 (ja) * 1988-09-14 1998-07-09 キヤノン株式会社 レーザ記録装置
US4998257A (en) * 1989-03-09 1991-03-05 Konica Corporation Semiconductor laser driving apparatus
JPH03216363A (ja) * 1990-01-22 1991-09-24 Fuji Photo Film Co Ltd 半導体レーザの駆動装置
US5081631A (en) * 1991-04-03 1992-01-14 Eastman Kodak Company Direct modulation of laser diodes for radiographic printers
US5371524A (en) * 1991-11-25 1994-12-06 Eastman Kodak Company End pulse width modulation for digital image printer with halftone gray scale capability

Also Published As

Publication number Publication date
EP0625842A1 (de) 1994-11-23
EP0625842B1 (de) 1999-02-17
US5426452A (en) 1995-06-20
JPH0723197A (ja) 1995-01-24
DE69416541D1 (de) 1999-03-25
JP3705612B2 (ja) 2005-10-12

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: BLICKLE, K., DIPL.-ING., PAT.-ASS., 70327 STUTTGAR

8328 Change in the person/name/address of the agent

Representative=s name: DR. KUEHNER, H., RECHTSANW., 70327 STUTTGART

8339 Ceased/non-payment of the annual fee