JPS5722218A - Scanning optical system using plural beams - Google Patents

Scanning optical system using plural beams

Info

Publication number
JPS5722218A
JPS5722218A JP9799380A JP9799380A JPS5722218A JP S5722218 A JPS5722218 A JP S5722218A JP 9799380 A JP9799380 A JP 9799380A JP 9799380 A JP9799380 A JP 9799380A JP S5722218 A JPS5722218 A JP S5722218A
Authority
JP
Japan
Prior art keywords
optical system
beams
luminous fluxes
light
lenses
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.)
Granted
Application number
JP9799380A
Other languages
Japanese (ja)
Other versions
JPH0152728B2 (en
Inventor
Kazuo Minoura
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.)
Canon Inc
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Priority to JP9799380A priority Critical patent/JPS5722218A/en
Priority to GB8103627A priority patent/GB2069176B/en
Priority to DE19813104236 priority patent/DE3104236A1/en
Publication of JPS5722218A publication Critical patent/JPS5722218A/en
Priority to GB08327259A priority patent/GB2138162B/en
Publication of JPH0152728B2 publication Critical patent/JPH0152728B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G06K15/1238—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 simultaneously exposing more than one point
    • G06K15/1257—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 simultaneously exposing more than one point on more than one main scanning line
    • G06K15/1261—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 simultaneously exposing more than one point on more than one main scanning line using an array of light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/12—Scanning systems using multifaceted mirrors
    • G02B26/123—Multibeam scanners, e.g. using multiple light sources or beam splitters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Laser Beam Printer (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)

Abstract

PURPOSE:To reduce the loss of the quantity of light from the light source parts for beams and to make a scanning optical system which scans plural pieces of beams simultaneously on the surface to be scanned usable at the high speed recording by interposing anamorphic lenses in said optical system. CONSTITUTION:Plural light beams from light source parts 1a, 1b such as semiconductor laser arrays are passed through an objective lens 2, anamorphic lenses 11, 14, a rotary polarizer 3, a lens 13, etc., whereby the scanning lines 1a', 1b' are imaged on a photosensitive medium 6 of a rotary cylindrical body 5 in correspondence to the parts 1a, 1b. The lenses 11, 14 are formed to have an incident angle theta larger than a exit angle theta' so that the imaging magnification in the direction intersecting orthogonally with the plane where the luminous fluxes are polarized is made smaller than the imaging magnification in the direction where the luminous fluxes and luminous fluxes from the light sources are polarized. Thereby, the photodetection rates of the scanning lines 1a', 1b' are improved.
JP9799380A 1980-02-06 1980-07-16 Scanning optical system using plural beams Granted JPS5722218A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP9799380A JPS5722218A (en) 1980-07-16 1980-07-16 Scanning optical system using plural beams
GB8103627A GB2069176B (en) 1980-02-06 1981-02-05 Optical mechanical scanning using several light beams
DE19813104236 DE3104236A1 (en) 1980-02-06 1981-02-06 OPTICAL SCANING SYSTEM
GB08327259A GB2138162B (en) 1980-02-06 1983-10-12 Scanning optical system employing two or more beams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9799380A JPS5722218A (en) 1980-07-16 1980-07-16 Scanning optical system using plural beams

Publications (2)

Publication Number Publication Date
JPS5722218A true JPS5722218A (en) 1982-02-05
JPH0152728B2 JPH0152728B2 (en) 1989-11-09

Family

ID=14207184

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9799380A Granted JPS5722218A (en) 1980-02-06 1980-07-16 Scanning optical system using plural beams

Country Status (1)

Country Link
JP (1) JPS5722218A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61245129A (en) * 1985-04-22 1986-10-31 Asahi Optical Co Ltd Scanning optical system for laser printer or the like
JPS62172317A (en) * 1986-01-24 1987-07-29 Ricoh Co Ltd Scanning optical system having face inclination correcting function
US4818046A (en) * 1986-12-03 1989-04-04 Kyocera Corporation Light beam scanning device
US4932734A (en) * 1987-12-11 1990-06-12 Ricoh Company, Ltd. Optical scanning system using a laser diode array
US5008686A (en) * 1988-08-19 1991-04-16 Canon Kabushiki Kaisha Optical scanning device for scanning a predetermined surface with a plurality of light beams
KR100501719B1 (en) * 2002-08-13 2005-07-18 삼성전자주식회사 Laser scanning unit
EP1715369A1 (en) 2005-04-20 2006-10-25 Konica Minolta Business Technologies, Inc. Laser optical unit, laser optical apparatus, and image formation apparatus
JP2008039964A (en) * 2006-08-03 2008-02-21 Ricoh Co Ltd Optical scanner and image forming apparatus
US8570620B2 (en) 2009-10-07 2013-10-29 Samsung Electronics Co., Ltd. Light scanning unit and electrophotographic image forming apparatus using the same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61245129A (en) * 1985-04-22 1986-10-31 Asahi Optical Co Ltd Scanning optical system for laser printer or the like
JPS62172317A (en) * 1986-01-24 1987-07-29 Ricoh Co Ltd Scanning optical system having face inclination correcting function
US4818046A (en) * 1986-12-03 1989-04-04 Kyocera Corporation Light beam scanning device
US4932734A (en) * 1987-12-11 1990-06-12 Ricoh Company, Ltd. Optical scanning system using a laser diode array
US5008686A (en) * 1988-08-19 1991-04-16 Canon Kabushiki Kaisha Optical scanning device for scanning a predetermined surface with a plurality of light beams
KR100501719B1 (en) * 2002-08-13 2005-07-18 삼성전자주식회사 Laser scanning unit
EP1715369A1 (en) 2005-04-20 2006-10-25 Konica Minolta Business Technologies, Inc. Laser optical unit, laser optical apparatus, and image formation apparatus
JP2008039964A (en) * 2006-08-03 2008-02-21 Ricoh Co Ltd Optical scanner and image forming apparatus
US8570620B2 (en) 2009-10-07 2013-10-29 Samsung Electronics Co., Ltd. Light scanning unit and electrophotographic image forming apparatus using the same

Also Published As

Publication number Publication date
JPH0152728B2 (en) 1989-11-09

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