JPS6482008A - Control system for laser beam scanning device - Google Patents

Control system for laser beam scanning device

Info

Publication number
JPS6482008A
JPS6482008A JP62241635A JP24163587A JPS6482008A JP S6482008 A JPS6482008 A JP S6482008A JP 62241635 A JP62241635 A JP 62241635A JP 24163587 A JP24163587 A JP 24163587A JP S6482008 A JPS6482008 A JP S6482008A
Authority
JP
Japan
Prior art keywords
medium
scanned
period
synchronizing signal
signal
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
JP62241635A
Other languages
Japanese (ja)
Inventor
Atsushi Hakamata
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox Co Ltd
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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP62241635A priority Critical patent/JPS6482008A/en
Publication of JPS6482008A publication Critical patent/JPS6482008A/en
Pending legal-status Critical Current

Links

Landscapes

  • Mechanical Optical Scanning Systems (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE:To obtain stable synchronism and the best beam output by setting beam intensity corresponding to the sensitivity of a medium to be irradiated and supplying a beam having the maximum intensity to a photodetector as a generation source for a horizontal synchronizing signal. CONSTITUTION:The beam of a laser light source 1 is projected on an optical deflector 5 through an optical modulator 3. The deflector 5 rotates at a constant speed and its reflected light is scanned on the object medium 7 at a constant period. A control circuit 10 inputs an information signal and a reference signal corresponding to the sensitivity of the medium 7 and outputs them to an optical modulator driving device 11 as a modulating signal. Then when the beam scanned on the photodetector 8, the horizontal scanning synchronizing signal is generated to maximize the output voltage of the circuit 10 throughout the scanning period. The period wherein the detector 8 and medium 7 are scanned is controlled by a counter. Consequently, the stable horizontal scanning synchronizing signal is obtained and the object medium is irradiated with the best beam.
JP62241635A 1987-09-25 1987-09-25 Control system for laser beam scanning device Pending JPS6482008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62241635A JPS6482008A (en) 1987-09-25 1987-09-25 Control system for laser beam scanning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62241635A JPS6482008A (en) 1987-09-25 1987-09-25 Control system for laser beam scanning device

Publications (1)

Publication Number Publication Date
JPS6482008A true JPS6482008A (en) 1989-03-28

Family

ID=17077248

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62241635A Pending JPS6482008A (en) 1987-09-25 1987-09-25 Control system for laser beam scanning device

Country Status (1)

Country Link
JP (1) JPS6482008A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60120659A (en) * 1983-12-03 1985-06-28 Matsushita Electric Ind Co Ltd Laser recorder
JPS6177030A (en) * 1984-09-04 1986-04-19 ゼロツクス　コーポレーシヨン Apparatus and method for contorlling intensity of image formation beam for raster output scanner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60120659A (en) * 1983-12-03 1985-06-28 Matsushita Electric Ind Co Ltd Laser recorder
JPS6177030A (en) * 1984-09-04 1986-04-19 ゼロツクス　コーポレーシヨン Apparatus and method for contorlling intensity of image formation beam for raster output scanner

Similar Documents

Publication Publication Date Title
ES8102395A1 (en) Optical scanning apparatus with focussing system.
JPS54160211A (en) Method and apparatus for information recording and reproducing
GB1469435A (en) Optical sensor for determining the focussing error in an optical illumination system embodying a projection lens
DE3586714D1 (en) Optische modulationssysteme.
AU636905B2 (en) Cutting apparatus for an optical disc
JPS5460944A (en) Galvanomirror scanner
JPS5765060A (en) Method and device for laser recording
JPS6486180A (en) Laser printer
JPS6482008A (en) Control system for laser beam scanning device
JPS56146359A (en) Deflecting device of laser scan
JPS54150140A (en) Recorder
GB1423404A (en) Facsimile system scanner
JPS545744A (en) Rotation controller of rotary scanners
JPS5478155A (en) Modulating and deflecting device of light beam
GB1127178A (en) Optical scanning system
JPS56124982A (en) Synchronizing signal generation system of laser beam printer
JPS6456465A (en) Exposure correction device for laser beam printer
MY107278A (en) Focus control circuit.
JP3008225B2 (en) Image recording device
JPS571956A (en) Setting device for gain in reading radiation picture information
KR920701949A (en) Optical recorder
JPS54160117A (en) Optical scanner
JPS575186A (en) Recorder
JPS5673306A (en) Differential pattern display device for displacement and oscillation amplitude of object
JPS57118467A (en) Transmitter of picture information