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JPS56123522A - Optical scanner - Google Patents

Optical scanner

Info

Publication number
JPS56123522A
JPS56123522A JP2755880A JP2755880A JPS56123522A JP S56123522 A JPS56123522 A JP S56123522A JP 2755880 A JP2755880 A JP 2755880A JP 2755880 A JP2755880 A JP 2755880A JP S56123522 A JPS56123522 A JP S56123522A
Authority
JP
Japan
Prior art keywords
light
modulator
diffracted light
zero
output
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
JP2755880A
Other languages
Japanese (ja)
Inventor
Hiroyoshi Funato
Isamu Shibata
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP2755880A priority Critical patent/JPS56123522A/en
Publication of JPS56123522A publication Critical patent/JPS56123522A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laser Beam Printer (AREA)
  • Dot-Matrix Printers And Others (AREA)

Abstract

PURPOSE:To enable always stable image recording, by detecting the output of acousto-optical modulator which superimposes the output light of a gas laser on the image information externally given and making the gain control of the modulator so that the output can always be constant. CONSTITUTION:Since the zero-order diffracted light of the modulator 5 is proportional to the light of the primary diffracted light used actually as write-in light, the gain control of the modulation signal of the modulator 5 is made with the peak voltage according to the light amount of the zero-order diffracted light detected and stored in the peak holding circuit 16. Thus, the amount of light for write-in can always be stored constant. Further, by also detecting the zero-order diffracted light of the modulator 5 with the photodetector 14, the recording of image can be made without giving any hindrance to the optical path of the primary diffracted light.
JP2755880A 1980-03-05 1980-03-05 Optical scanner Pending JPS56123522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2755880A JPS56123522A (en) 1980-03-05 1980-03-05 Optical scanner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2755880A JPS56123522A (en) 1980-03-05 1980-03-05 Optical scanner

Publications (1)

Publication Number Publication Date
JPS56123522A true JPS56123522A (en) 1981-09-28

Family

ID=12224374

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2755880A Pending JPS56123522A (en) 1980-03-05 1980-03-05 Optical scanner

Country Status (1)

Country Link
JP (1) JPS56123522A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58208949A (en) * 1982-05-28 1983-12-05 Matsushita Electric Ind Co Ltd Optical modulating device
JPS6042736A (en) * 1983-08-17 1985-03-07 Fuji Xerox Co Ltd Illumination assay diagnostic method
JPS61502424A (en) * 1984-06-11 1986-10-23 イ−ストマン　コダック　カンパニ− Laser beam intensity control device
JPS63271224A (en) * 1987-04-28 1988-11-09 Fuji Xerox Co Ltd Optical beam scanner
JPH05107768A (en) * 1991-02-25 1993-04-30 Hughes Aircraft Co System of manufacturing micro-light element
KR100815371B1 (en) 2004-06-02 2008-03-19 삼성전기주식회사 Scanning apparatus and method for uniform beam irradiation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58208949A (en) * 1982-05-28 1983-12-05 Matsushita Electric Ind Co Ltd Optical modulating device
JPS6042736A (en) * 1983-08-17 1985-03-07 Fuji Xerox Co Ltd Illumination assay diagnostic method
JPS61502424A (en) * 1984-06-11 1986-10-23 イ−ストマン　コダック　カンパニ− Laser beam intensity control device
JPS63271224A (en) * 1987-04-28 1988-11-09 Fuji Xerox Co Ltd Optical beam scanner
JPH05107768A (en) * 1991-02-25 1993-04-30 Hughes Aircraft Co System of manufacturing micro-light element
KR100815371B1 (en) 2004-06-02 2008-03-19 삼성전기주식회사 Scanning apparatus and method for uniform beam irradiation

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