JP2003222812A5 - - Google Patents

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JP2003222812A5
JP2003222812A5 JP2002023001A JP2002023001A JP2003222812A5 JP 2003222812 A5 JP2003222812 A5 JP 2003222812A5 JP 2002023001 A JP2002023001 A JP 2002023001A JP 2002023001 A JP2002023001 A JP 2002023001A JP 2003222812 A5 JP2003222812 A5 JP 2003222812A5
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Japan
Prior art keywords
optical scanning
light sources
scanning device
light beams
deflection surfaces
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JP2002023001A
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JP2003222812A (en
JP4227335B2 (en
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Priority claimed from JP2002023001A external-priority patent/JP4227335B2/en
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Publication of JP2003222812A5 publication Critical patent/JP2003222812A5/ja
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Claims (13)

複数の光源から放射された複数の光束を、複数の偏向面を持つ同一の偏向器の異なる偏向面で偏向し、異なる偏向面で偏向された光束をそれぞれ走査レンズ系を介して被走査面上に結像させる光走査装置において、
前記異なる偏向面で偏向された光束の任意の2つの主光線のなす角度を20°以下としたことを特徴とする光走査装置。
A plurality of light beams emitted from a plurality of light sources are deflected by different deflection surfaces of the same deflector having a plurality of deflection surfaces, and the light beams deflected by the different deflection surfaces are respectively scanned on the surface to be scanned via the scanning lens system. In the optical scanning device that forms an image on
An optical scanning device characterized in that an angle formed by any two principal rays of the light beams deflected by the different deflection surfaces is set to 20 ° or less .
前記複数の光源から前記偏向器に至るまでの光路中に、該複数の光源からの光束を、前記偏向面で線像を形成するシリンドリカルレンズが該複数の光源毎に配置され、該複数の光源に対応する該シリンドリカルレンズは一体で構成されていることを特徴とする請求項1記載の光走査装置。  A cylindrical lens that forms a line image on the deflection surface of the light beams from the plurality of light sources in the optical path from the plurality of light sources to the deflector is disposed for each of the plurality of light sources. The optical scanning device according to claim 1, wherein the cylindrical lens corresponding to is integrally formed. 複数の光源から放射された複数の光束を、複数の偏向面を持つ同一の偏向器の異なる偏向面で偏向し、異なる偏向面で偏向された光束をそれぞれ走査レンズ系を介して被走査面上に結像させる光走査装置において、
前記異なる偏向面で偏向された光束の任意の2つの主光線のなす角度を20°以下であり、該複数の光源から該偏向器に至るまでの光路中に、該複数の光源からの光束を、該偏向面で線像を形成するシリンドリカルレンズが該複数の光源毎に配置され、該複数の光源に対応する該複数のシリンドリカルレンズは一体で構成されていることを特徴とする光走査装置。
A plurality of light beams emitted from a plurality of light sources are deflected by different deflection surfaces of the same deflector having a plurality of deflection surfaces, and the light beams deflected by the different deflection surfaces are respectively scanned on the surface to be scanned via the scanning lens system. In an optical scanning device that forms an image on
The angle formed by any two principal rays of the light beams deflected by the different deflection surfaces is 20 ° or less , and the light beams from the plurality of light sources are placed in the optical path from the plurality of light sources to the deflector. An optical scanning device characterized in that a cylindrical lens for forming a line image on the deflection surface is disposed for each of the plurality of light sources, and the plurality of cylindrical lenses corresponding to the plurality of light sources are integrally formed.
複数の光源から放射された複数の光束を、複数の偏向面を持つ同一の偏向器の異なる偏向面で偏向し、異なる偏向面で偏向された光束をそれぞれ走査レンズ系を介して被走査面上に結像させる光走査装置において、
該複数の光源から該偏向器に至るまでの光路中に、該複数の光源からの光束を、該偏向面で線像を形成するシリンドリカルレンズが該複数の光源毎に配置され、該複数の光源に対応する該複数のシリンドリカルレンズは一体で構成されていることを特徴とする光走査装置。
A plurality of light beams emitted from a plurality of light sources are deflected by different deflection surfaces of the same deflector having a plurality of deflection surfaces, and the light beams deflected by the different deflection surfaces are respectively scanned on the surface to be scanned via the scanning lens system. In the optical scanning device that forms an image on
A cylindrical lens that forms a line image on the deflection surface of the light beams from the plurality of light sources in the optical path from the plurality of light sources to the deflector is disposed for each of the plurality of light sources. The plurality of cylindrical lenses corresponding to 1 is configured integrally.
前記偏向器は4つの偏向面をもつ回転多面鏡であることを特徴とする請求項1乃至4の何れか1項に記載の光走査装置。  5. The optical scanning device according to claim 1, wherein the deflector is a rotary polygon mirror having four deflecting surfaces. 6. 前記回転多面鏡は、その外接円の半径が15mm以下であることを特徴とする請求項5記載の光走査装置。  6. The optical scanning device according to claim 5, wherein a radius of a circumscribed circle of the rotary polygon mirror is 15 mm or less. 前記複数の光源は、同一の基板に配置されることを特徴とする請求項1乃至6の何れか1項に記載の光走査装置。  The optical scanning device according to claim 1, wherein the plurality of light sources are arranged on the same substrate. 同期信号検出用の同期検知センサーと、該同期検知センサー上へ集光させるための同期検出用レンズを有し、該同期検出用レンズは前記シリンドリカルレンズと一体で構成されていることを特徴とする請求項1乃至7の何れか1項に記載の光走査装置。  It has a synchronization detection sensor for detecting a synchronization signal and a synchronization detection lens for condensing on the synchronization detection sensor, and the synchronization detection lens is formed integrally with the cylindrical lens. The optical scanning device according to claim 1. 前記同期検知センサーと、前記複数の光源は同一の基板上に一体で構成されていることを特徴とする請求項8記載の光走査装置。  9. The optical scanning device according to claim 8, wherein the synchronization detection sensor and the plurality of light sources are integrally formed on the same substrate. 前記偏向器は副走査断面内において2段より成ることを特徴とする請求項1乃至9の何れか1項に記載の光走査装置。  10. The optical scanning device according to claim 1, wherein the deflector includes two stages in the sub-scan section. 請求項1乃至10のいずれか一項に記載の光走査装置を複数有し、各々の光走査装置の被走査面に配置され、互いに異なった色の画像を形成する複数の像担持体とを有することを特徴とするカラー画像形成装置。  A plurality of optical scanning devices according to any one of claims 1 to 10, and a plurality of image carriers that are arranged on a scanning surface of each of the optical scanning devices and form images of different colors. A color image forming apparatus comprising: 外部機器から入力した色信号を異なった色の画像データに変換して各々の光走査装置に入力せしめるプリンタコントローラを有していることを特徴とする請求項11のカラー画像形成装置。  12. A color image forming apparatus according to claim 11, further comprising a printer controller that converts color signals input from an external device into image data of different colors and inputs the data to each optical scanning device. 請求項1乃至10の何れか1項の光走査装置を用いて、前記被走査面上に設けた感光ドラムに光束を導光することを特徴とするレーザービームプリンタ。  11. A laser beam printer using the optical scanning device according to claim 1 to guide a light beam to a photosensitive drum provided on the surface to be scanned.
JP2002023001A 2002-01-31 2002-01-31 Optical scanning device and image forming apparatus using the same Expired - Fee Related JP4227335B2 (en)

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Application Number Priority Date Filing Date Title
JP2002023001A JP4227335B2 (en) 2002-01-31 2002-01-31 Optical scanning device and image forming apparatus using the same

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JP2003222812A JP2003222812A (en) 2003-08-08
JP2003222812A5 true JP2003222812A5 (en) 2005-08-11
JP4227335B2 JP4227335B2 (en) 2009-02-18

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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006178371A (en) 2004-12-24 2006-07-06 Brother Ind Ltd Scanner and image forming apparatus
JP2006337792A (en) * 2005-06-03 2006-12-14 Canon Inc Optical scanner and image forming apparatus using the same
JP4958714B2 (en) * 2007-10-09 2012-06-20 キヤノン株式会社 Scanning optical device and image forming apparatus using the same
JP2009145569A (en) 2007-12-13 2009-07-02 Canon Inc Optical scanning apparatus and image forming apparatus using same
JP5765876B2 (en) * 2009-01-30 2015-08-19 株式会社リコー Optical scanning apparatus and image forming apparatus
JP2011033769A (en) 2009-07-31 2011-02-17 Canon Inc Scanning optical apparatus and image forming apparatus using the same
JP5505870B2 (en) * 2010-11-22 2014-05-28 株式会社リコー Optical scanning apparatus and image forming apparatus
JP5882646B2 (en) * 2011-09-16 2016-03-09 キヤノン株式会社 Optical scanning apparatus and image forming apparatus
JP6260758B2 (en) * 2012-07-19 2018-01-17 株式会社リコー Optical scanning apparatus and image forming apparatus
JP6179314B2 (en) * 2013-09-24 2017-08-16 ブラザー工業株式会社 Scanning optical device
JP5817855B2 (en) * 2014-01-22 2015-11-18 株式会社リコー Optical scanning apparatus and image forming apparatus

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