JPS51120737A - Douser device for harmful lights in light beam scanning - Google Patents

Douser device for harmful lights in light beam scanning

Info

Publication number
JPS51120737A
JPS51120737A JP4560975A JP4560975A JPS51120737A JP S51120737 A JPS51120737 A JP S51120737A JP 4560975 A JP4560975 A JP 4560975A JP 4560975 A JP4560975 A JP 4560975A JP S51120737 A JPS51120737 A JP S51120737A
Authority
JP
Japan
Prior art keywords
light beam
douser
beam scanning
harmful lights
lights
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
JP4560975A
Other languages
Japanese (ja)
Inventor
Koji Sato
Kazuhiro Hirayama
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 JP4560975A priority Critical patent/JPS51120737A/en
Publication of JPS51120737A publication Critical patent/JPS51120737A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0018—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for preventing ghost images

Landscapes

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

Abstract

PURPOSE:To form high picture quality with a light beam using a mechanism of simple composition.
JP4560975A 1975-04-15 1975-04-15 Douser device for harmful lights in light beam scanning Pending JPS51120737A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4560975A JPS51120737A (en) 1975-04-15 1975-04-15 Douser device for harmful lights in light beam scanning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4560975A JPS51120737A (en) 1975-04-15 1975-04-15 Douser device for harmful lights in light beam scanning

Publications (1)

Publication Number Publication Date
JPS51120737A true JPS51120737A (en) 1976-10-22

Family

ID=12724096

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4560975A Pending JPS51120737A (en) 1975-04-15 1975-04-15 Douser device for harmful lights in light beam scanning

Country Status (1)

Country Link
JP (1) JPS51120737A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56122006A (en) * 1980-02-29 1981-09-25 Ricoh Co Ltd Elimination method of ghost image
JPS60225822A (en) * 1984-04-24 1985-11-11 Konishiroku Photo Ind Co Ltd Image recording device
JPS63205635A (en) * 1987-02-23 1988-08-25 Minolta Camera Co Ltd Optical scanning type image forming device
JPS63239416A (en) * 1987-03-26 1988-10-05 Fuji Xerox Co Ltd Laser beam scanning optical system
JPH0442621U (en) * 1990-08-10 1992-04-10
US7039257B2 (en) 2001-02-19 2006-05-02 Canon Kabushiki Kaisha Scanning optical apparatus and image forming apparatus using the same
JP2008051764A (en) * 2006-08-28 2008-03-06 Sharp Corp Range finding sensor, and electronic device having sensor mounted
EP1988418A2 (en) * 2007-05-01 2008-11-05 Canon Kabushiki Kaisha Optical scanning device and image forming apparatus using the same

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56122006A (en) * 1980-02-29 1981-09-25 Ricoh Co Ltd Elimination method of ghost image
JPS60225822A (en) * 1984-04-24 1985-11-11 Konishiroku Photo Ind Co Ltd Image recording device
JPS63205635A (en) * 1987-02-23 1988-08-25 Minolta Camera Co Ltd Optical scanning type image forming device
JPS63239416A (en) * 1987-03-26 1988-10-05 Fuji Xerox Co Ltd Laser beam scanning optical system
JPH0442621U (en) * 1990-08-10 1992-04-10
US7039257B2 (en) 2001-02-19 2006-05-02 Canon Kabushiki Kaisha Scanning optical apparatus and image forming apparatus using the same
JP2008051764A (en) * 2006-08-28 2008-03-06 Sharp Corp Range finding sensor, and electronic device having sensor mounted
EP1988418A2 (en) * 2007-05-01 2008-11-05 Canon Kabushiki Kaisha Optical scanning device and image forming apparatus using the same
EP1988418A3 (en) * 2007-05-01 2008-11-19 Canon Kabushiki Kaisha Optical scanning device and image forming apparatus using the same
US8077193B2 (en) 2007-05-01 2011-12-13 Canon Kabushiki Kaisha Optical scanning device and image forming apparatus using the same
US8416271B2 (en) 2007-05-01 2013-04-09 Canon Kabushiki Kaisha Optical scanning device and image forming apparatus using the same
EP2863252A1 (en) * 2007-05-01 2015-04-22 Canon Kabushiki Kaisha Optical scanning device and image forming apparatus using the same

Similar Documents

Publication Publication Date Title
GB1556174A (en) Light scanning apparatus
ES8203523A1 (en) Illuminating device for a large screen.
JPS51129244A (en) Optical device for focusing light beam
JPS51120737A (en) Douser device for harmful lights in light beam scanning
JPS51135643A (en) Device for reducing light intensity
JPS51126829A (en) Illuminator for projector
JPS53124908A (en) Scanning method for light beam
GB1547180A (en) Semiconductor laser with light guide
JPS5239584A (en) Vacuum evaporation apparatus
JPS5264945A (en) Apparatus for converting light transmitted from linear region in receiver
CA1035612A (en) Transparency projector focusing mechanism
JPS522723A (en) Oscillation plate for speaker
JPS5238944A (en) Optical system for scanning
JPS5234780A (en) Ultrasonic beam scaning apparatus
JPS51140702A (en) Semiconductor laser pickup apparatus
JPS5549801A (en) Lighting apparatus projector for asymmetrical light distribution
JPS51139321A (en) Method of precipitating metal silver on glass surface
JPS5220760A (en) Colour picture tube
JPS5342727A (en) Projector
JPS51140428A (en) Picture quality compensating device
JPS51146840A (en) Photogyrator circuit
JPS51149036A (en) Photomixer
JPS5224543A (en) Fresnel lens system for overhead projectors
JPS528691A (en) Light source device
JPS5280668A (en) Illuminating method