JPS57144518A - Scan optical system having fall compensating function - Google Patents

Scan optical system having fall compensating function

Info

Publication number
JPS57144518A
JPS57144518A JP56030347A JP3034781A JPS57144518A JP S57144518 A JPS57144518 A JP S57144518A JP 56030347 A JP56030347 A JP 56030347A JP 3034781 A JP3034781 A JP 3034781A JP S57144518 A JPS57144518 A JP S57144518A
Authority
JP
Japan
Prior art keywords
optical system
deflector
image forming
medium
forming optical
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
JP56030347A
Other languages
Japanese (ja)
Other versions
JPH0221565B2 (en
Inventor
Kazuo Minoura
Kazuhiko Matsuoka
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 JP56030347A priority Critical patent/JPS57144518A/en
Priority to GB8205414A priority patent/GB2096789B/en
Priority to DE19823207467 priority patent/DE3207467A1/en
Priority to FR8203407A priority patent/FR2501385B1/en
Publication of JPS57144518A publication Critical patent/JPS57144518A/en
Priority to US06/601,548 priority patent/US4585296A/en
Publication of JPH0221565B2 publication Critical patent/JPH0221565B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G02B26/127—Adaptive control of the scanning light beam, e.g. using the feedback from one or more detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Lenses (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE:To compensate the fall of a deflector and to eliminate an uneven pitch of a scanning line with a compact constitution, by forming a scanning image forming optical system which is provided between a deflector and a medium to be scanned with a single lens having a toric surface. CONSTITUTION:A scan optical system comprises the 1st image forming optical system 2 that forms the luminous flux given from a light source device 1, a deflector 3 and the 2nd image forming optical system 4 that forms a linear image into a spot on the medium 5. The system 4 includes a positive meniscus lens, i.e., a toric single lens comprising a surface having the negative refractive power at the deflector 3 side and a surface having the positive refractive power at the medium 5 side within a section vertical to the deflecting surface which is formed by the beam deflected by the deflector 3 and also includes the optical axis. As a result, both the image forming performance and the distortion properties of an image forming optical system can be compensated satisfactorily without using any means having a collimating function.
JP56030347A 1981-03-03 1981-03-03 Scan optical system having fall compensating function Granted JPS57144518A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP56030347A JPS57144518A (en) 1981-03-03 1981-03-03 Scan optical system having fall compensating function
GB8205414A GB2096789B (en) 1981-03-03 1982-02-24 Optical mechanical scanning system
DE19823207467 DE3207467A1 (en) 1981-03-03 1982-03-02 OPTICAL SCAN SYSTEM WITH INCLINATION CORRECTION
FR8203407A FR2501385B1 (en) 1981-03-03 1982-03-02 COMPACT OPTICAL EXPLORATION DEVICE
US06/601,548 US4585296A (en) 1981-03-03 1984-04-18 Scanning optical system having a tilting correcting function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56030347A JPS57144518A (en) 1981-03-03 1981-03-03 Scan optical system having fall compensating function

Publications (2)

Publication Number Publication Date
JPS57144518A true JPS57144518A (en) 1982-09-07
JPH0221565B2 JPH0221565B2 (en) 1990-05-15

Family

ID=12301304

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56030347A Granted JPS57144518A (en) 1981-03-03 1981-03-03 Scan optical system having fall compensating function

Country Status (1)

Country Link
JP (1) JPS57144518A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62139520A (en) * 1985-12-13 1987-06-23 Seiko Epson Corp Photoscanning device
JPS6319617A (en) * 1986-07-14 1988-01-27 Minolta Camera Co Ltd Surface tilt correction scanning optical system
JPS6350812A (en) * 1986-08-21 1988-03-03 Minolta Camera Co Ltd Surface tilt correcting and scanning optical system
JPH0333712A (en) * 1988-07-15 1991-02-14 Ricoh Co Ltd Scanning optical system and optical scanner
JPH08320444A (en) * 1996-05-28 1996-12-03 Seiko Epson Corp Optical scanning device
US5583559A (en) * 1993-01-26 1996-12-10 Minolta Camera Kabushiki Kaisha Light beam optical scanning system having an fθ mirror
US5619362A (en) * 1993-12-17 1997-04-08 Fuji Xerox Co., Ltd. Scanning lens and optical scanner using the same
US5710654A (en) * 1995-01-12 1998-01-20 Fuji Xerox Co., Ltd. Scanning lens and an optical scanner using the same
WO2007000973A1 (en) * 2005-06-28 2007-01-04 Nidec Sankyo Corporation Optical beam scanner
JP2009145897A (en) * 1995-02-28 2009-07-02 Canon Inc Scanning optical device and laser beam printer having scanning optical device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53137158A (en) * 1977-05-06 1978-11-30 Nec Corp Optical beam scanner
JPS5413355A (en) * 1977-06-30 1979-01-31 Ibm Optical scanning device
JPS5414252A (en) * 1977-07-04 1979-02-02 Nec Corp Light beam scanner
JPS557727A (en) * 1978-06-30 1980-01-19 Norita Kogaku Kk Planoconvex lens

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53137158A (en) * 1977-05-06 1978-11-30 Nec Corp Optical beam scanner
JPS5413355A (en) * 1977-06-30 1979-01-31 Ibm Optical scanning device
JPS5414252A (en) * 1977-07-04 1979-02-02 Nec Corp Light beam scanner
JPS557727A (en) * 1978-06-30 1980-01-19 Norita Kogaku Kk Planoconvex lens

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62139520A (en) * 1985-12-13 1987-06-23 Seiko Epson Corp Photoscanning device
JPH0760221B2 (en) * 1985-12-13 1995-06-28 セイコーエプソン株式会社 Optical scanning device
JPS6319617A (en) * 1986-07-14 1988-01-27 Minolta Camera Co Ltd Surface tilt correction scanning optical system
JPS6350812A (en) * 1986-08-21 1988-03-03 Minolta Camera Co Ltd Surface tilt correcting and scanning optical system
JPH0333712A (en) * 1988-07-15 1991-02-14 Ricoh Co Ltd Scanning optical system and optical scanner
US5583559A (en) * 1993-01-26 1996-12-10 Minolta Camera Kabushiki Kaisha Light beam optical scanning system having an fθ mirror
US5619362A (en) * 1993-12-17 1997-04-08 Fuji Xerox Co., Ltd. Scanning lens and optical scanner using the same
US5757533A (en) * 1993-12-17 1998-05-26 Fuji Xerox Co., Ltd. Scanning lens and optical scanner using the same
US5710654A (en) * 1995-01-12 1998-01-20 Fuji Xerox Co., Ltd. Scanning lens and an optical scanner using the same
JP2009145897A (en) * 1995-02-28 2009-07-02 Canon Inc Scanning optical device and laser beam printer having scanning optical device
JPH08320444A (en) * 1996-05-28 1996-12-03 Seiko Epson Corp Optical scanning device
JP2621838B2 (en) * 1996-05-28 1997-06-18 セイコーエプソン株式会社 Optical scanning device
WO2007000973A1 (en) * 2005-06-28 2007-01-04 Nidec Sankyo Corporation Optical beam scanner
JP2007010804A (en) * 2005-06-28 2007-01-18 Nidec Sankyo Corp Light beam scanner

Also Published As

Publication number Publication date
JPH0221565B2 (en) 1990-05-15

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