JPS575187A - Recorder - Google Patents

Recorder

Info

Publication number
JPS575187A
JPS575187A JP7937780A JP7937780A JPS575187A JP S575187 A JPS575187 A JP S575187A JP 7937780 A JP7937780 A JP 7937780A JP 7937780 A JP7937780 A JP 7937780A JP S575187 A JPS575187 A JP S575187A
Authority
JP
Japan
Prior art keywords
output
laser beam
laser
oscillator
intensity
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.)
Pending
Application number
JP7937780A
Other languages
Japanese (ja)
Inventor
Yuichi Akanabe
Hiroaki Ikeda
Shinsuke Funaki
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP7937780A priority Critical patent/JPS575187A/en
Publication of JPS575187A publication Critical patent/JPS575187A/en
Pending legal-status Critical Current

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
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Laser Beam Printer (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Lasers (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Fax Reproducing Arrangements (AREA)

Abstract

PURPOSE:To stabilize a laser output by eliminating influences of fluctuations of polarizing characteristics of the laser output by detecting the intensity of a laser beam not in a laser beam recording period and by controlling the output of the laser beam in the recording period by the detection output. CONSTITUTION:A laser output from a laser oscillator 1 is focused through a deflector 3 and an optical condensation system 4 to scan the surface of a photoreceptor 5, thus recording a picture. At the opposite side to the emission direction of the laser output from the oscillator 1, a photodetector 6 is arranged to detect the intensity of the laser beam in any period other than the recording period. Its detection signal is held by a sample holding circuit 8 with the signal of a synchronous control circuit 10, and on the basis of the held signal, a current value when a modulator 11 turns on the oscillator 1 is determined by a current control circuit 9. Then, a synchronizing signal from a synchronous oscillator 13 is applied to the circuit 10 and deflector 3 to control the output of the laser beam in the recording period according to the intensity of the laser beam detected by the photodetector 6, thereby stabilizing the output.
JP7937780A 1980-06-11 1980-06-11 Recorder Pending JPS575187A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7937780A JPS575187A (en) 1980-06-11 1980-06-11 Recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7937780A JPS575187A (en) 1980-06-11 1980-06-11 Recorder

Publications (1)

Publication Number Publication Date
JPS575187A true JPS575187A (en) 1982-01-11

Family

ID=13688173

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7937780A Pending JPS575187A (en) 1980-06-11 1980-06-11 Recorder

Country Status (1)

Country Link
JP (1) JPS575187A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62153815A (en) * 1985-12-27 1987-07-08 Kyocera Corp Optical scanning method
EP0358171A2 (en) * 1988-09-06 1990-03-14 Canon Kabushiki Kaisha Light intensity control apparatus
JPH0489962U (en) * 1991-08-01 1992-08-05
JP2013037225A (en) * 2011-08-09 2013-02-21 Ricoh Co Ltd Image forming apparatus, light quantity adjusting method, and program

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62153815A (en) * 1985-12-27 1987-07-08 Kyocera Corp Optical scanning method
JPH0743463B2 (en) * 1985-12-27 1995-05-15 京セラ株式会社 Optical scanning method
EP0358171A2 (en) * 1988-09-06 1990-03-14 Canon Kabushiki Kaisha Light intensity control apparatus
US5043745A (en) * 1988-09-06 1991-08-27 Canon Kabushiki Kaisha Light intensity control apparatus
JPH0489962U (en) * 1991-08-01 1992-08-05
JP2013037225A (en) * 2011-08-09 2013-02-21 Ricoh Co Ltd Image forming apparatus, light quantity adjusting method, and program

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