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1.发明申请OPTICAL SCANNING DEVICE, OPTICAL WRITING DEVICE, AND IMAGE FORMING APPARATUS 有权光学扫描装置，光学写入装置和图像形成装置公开(公告)号：US20070253048A1
公开(公告)日：2007-11-01
申请号：US11740070
申请日：2007-04-25
IPC分类号： G02B26/08
CPC分类号： G02B27/42 , G02B26/124 , G02B27/4227 , G02B27/4283
摘要： An optical scanning device includes a first optical system for guiding light beams emitted from a plurality of light emitting units to an optical deflector, and a second optical system for focusing the light beams to optically scan a surface to be scanned. At least one of the first optical system and the second optical system includes a resin lens having a diffractive surface. The diffractive surface includes a diffractive portion and a refractive portion. A power of the diffractive portion and a power of the refractive portion cancel each other.
摘要翻译： 光学扫描装置包括用于将从多个发光单元发射的光束引导到光学偏转器的第一光学系统和用于聚焦光束以光学扫描要扫描的表面的第二光学系统。 第一光学系统和第二光学系统中的至少一个包括具有衍射面的树脂透镜。 衍射面包括衍射部分和折射部分。 衍射部分的功率和折射部分的功率彼此抵消。
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公开(公告)号：US07417777B2
公开(公告)日：2008-08-26
申请号：US11844643
申请日：2007-08-24
IPC分类号： G02B26/08
CPC分类号： G02B26/124 , G02B5/1876 , H04N1/1135 , H04N2201/0471 , H04N2201/04729 , H04N2201/04732 , H04N2201/04744
摘要： A coupling lens arranged on an optical path of an optical beam from a VCSEL, which has a refraction plane and a diffraction plane that respectively change a power according to a temperature change and suppresses a beam-waist position change in a main-scanning direction and a sub-scanning directions on the scanning surface caused by the temperature change, by a wavelength change of the optical beam caused by power changes of the refraction plane and the diffraction plane and the temperature change. A deflecting unit deflects the optical beam that passed through the coupling lens. A scanning optical system condenses a deflected optical beam on the scanning surface.
摘要翻译： 耦合透镜，布置在来自VCSEL的光束的光路上，所述光束具有根据温度变化分别改变功率的折射面和衍射面，并抑制主扫描方向上的束腰位置变化， 通过由折射平面和衍射面的功率变化引起的光束的波长变化和温度变化，由温度变化引起的扫描表面上的副扫描方向。 偏转单元使通过耦合透镜的光束偏转。 扫描光学系统将偏转的光束冷凝在扫描表面上。
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公开(公告)号：US20080055692A1
公开(公告)日：2008-03-06
申请号：US11844643
申请日：2007-08-24
CPC分类号： G02B26/124 , G02B5/1876 , H04N1/1135 , H04N2201/0471 , H04N2201/04729 , H04N2201/04732 , H04N2201/04744
摘要： A coupling lens arranged on an optical path of an optical beam from a VCSEL, which has a refraction plane and a diffraction plane that respectively change a power according to a temperature change and suppresses a beam-waist position change in a main-scanning direction and a sub-scanning directions on the scanning surface caused by the temperature change, by a wavelength change of the optical beam caused by power changes of the refraction plane and the diffraction plane and the temperature change. A deflecting unit deflects the optical beam that passed through the coupling lens. A scanning optical system condenses a deflected optical beam on the scanning surface.
摘要翻译： 耦合透镜，布置在来自VCSEL的光束的光路上，所述光束具有根据温度变化分别改变功率的折射面和衍射面，并抑制主扫描方向上的束腰位置变化， 通过由折射平面和衍射面的功率变化引起的光束的波长变化和温度变化，由温度变化引起的扫描表面上的副扫描方向。 偏转单元使通过耦合透镜的光束偏转。 扫描光学系统将偏转的光束冷凝在扫描表面上。
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4.发明授权Optical scanning device, optical writing device, and image forming apparatus 有权光学扫描装置，光学写入装置和图像形成装置公开(公告)号：US08077369B2
公开(公告)日：2011-12-13
申请号：US13152989
申请日：2011-06-03
IPC分类号： G02B26/08
CPC分类号： G02B27/42 , G02B26/124 , G02B27/4227 , G02B27/4283
摘要： An optical scanning device includes a first optical system for guiding light beams emitted from a plurality of light emitting units to an optical deflector, and a second optical system for focusing the light beams to optically scan a surface to be scanned. At least one of the first optical system and the second optical system includes a resin lens having a diffractive surface. The diffractive surface includes a diffractive portion and a refractive portion. A power of the diffractive portion and a power of the refractive portion cancel each other.
摘要翻译： 光学扫描装置包括用于将从多个发光单元发射的光束引导到光学偏转器的第一光学系统和用于聚焦光束以光学扫描要扫描的表面的第二光学系统。 第一光学系统和第二光学系统中的至少一个包括具有衍射面的树脂透镜。 衍射面包括衍射部分和折射部分。 衍射部分的功率和折射部分的功率彼此抵消。
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公开(公告)号：US07973990B2
公开(公告)日：2011-07-05
申请号：US11740070
申请日：2007-04-25
IPC分类号： G02B26/08
CPC分类号： G02B27/42 , G02B26/124 , G02B27/4227 , G02B27/4283
摘要： An optical scanning device includes a first optical system for guiding light beams emitted from a plurality of light emitting units to an optical deflector, and a second optical system for focusing the light beams to optically scan a surface to be scanned. At least one of the first optical system and the second optical system includes a resin lens having a diffractive surface. The diffractive surface includes a diffractive portion and a refractive portion. A power of the diffractive portion and a power of the refractive portion cancel each other.
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公开(公告)号：US07672032B2
公开(公告)日：2010-03-02
申请号：US11857811
申请日：2007-09-19
IPC分类号： G02B26/08
CPC分类号： G02B26/127 , G02B27/40
摘要： An optical axis of at least one surface of a resin-made diffracting lens is shifted in a main scanning direction with respect to an incident beam. A synchronous detection can cancel a problem of a misalignment in the main scanning direction due to a temperature variation. A light reflected from a second surface of the resin-made diffractive lens condenses on a position that is displaced in an optical axis direction from an optical beam outgoing point of a semiconductor laser, and thereby the light reflected again from the semiconductor laser does not form an image on a scanned surface and an impact on the image becomes low.
摘要翻译： 树脂衍射透镜的至少一个表面的光轴相对于入射光束在主扫描方向上偏移。 同步检测可以消除由于温度变化而导致的主扫描方向上的未对准的问题。 从树脂衍射透镜的第二表面反射的光在从半导体激光器的光束出射点沿光轴方向位移的位置聚集，从而半导体激光器再次反射的光不形成 扫描表面上的图像和对图像的影响变低。
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公开(公告)号：US07663657B2
公开(公告)日：2010-02-16
申请号：US11782268
申请日：2007-07-24
CPC分类号： G03G15/326 , B41J2/455 , B41J2/473 , G02B13/0005 , G02B26/125 , G03G15/0435 , G03G2215/0404
摘要： An optical scanning device includes a light source having light emitting points for emitting light beams, a coupling optical element that couples the light beams, a deflecting unit that deflects and scans the light beams, and a scanning optical system that focus the light beams to form an image. The optical scanning device satisfies the following condition: F tan(θ/2)+A
摘要翻译： 光学扫描装置包括具有用于发射光束的发光点的光源，耦合光束的耦合光学元件，偏转和扫描光束的偏转单元，以及聚焦光束以形成的扫描光学系统 一个图像。 光学扫描装置满足以下条件：F tan（θ/ 2）+ A
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公开(公告)号：US20080025759A1
公开(公告)日：2008-01-31
申请号：US11782268
申请日：2007-07-24
IPC分类号： G03G15/045 , G02B26/08
CPC分类号： G03G15/326 , B41J2/455 , B41J2/473 , G02B13/0005 , G02B26/125 , G03G15/0435 , G03G2215/0404
摘要： An optical scanning device includes a light source having light emitting points for emitting light beams, a coupling optical element that couples the light beams, a deflecting unit that deflects and scans the light beams, and a scanning optical system that focus the light beams to form an image. The optical scanning device satisfies the following condition: F tan(θ/2)+A
摘要翻译： 光学扫描装置包括具有用于发射光束的发光点的光源，耦合光束的耦合光学元件，偏转和扫描光束的偏转单元，以及聚焦光束以形成的扫描光学系统 一个图像。 光扫描装置满足以下条件：<？in-line-formula description =“In-line formula”end =“lead”？> F tan（θ/ 2）+ A
其中A是发光点和耦合光学元件的光轴之间的最大距离，θ是发散角（全宽半最大值） 的光束，F是耦合光学元件的焦距，D是耦合光学元件的有效半径。 -
公开(公告)号：US20090002792A1
公开(公告)日：2009-01-01
申请号：US12230077
申请日：2008-08-22
申请人： Kohji Sakai , Yoshinori Hayashi , Daisuke Ichii
发明人： Kohji Sakai , Yoshinori Hayashi , Daisuke Ichii
IPC分类号： G02B26/10
CPC分类号： G02B26/125 , G02B26/124 , G02B27/0031 , G02B27/0037 , G02B27/4227 , G02B27/4283
摘要： An optical scanning device includes a first optical element that converts a cross-section shape of a light beam from a semiconductor laser to a desired shape; a second optical element that guides the light beam output from the first optical element to an optical deflector that deflects the light beam; and a third optical element that gathers the light beam deflected by the optical deflector onto a surface to be scanned to form a light spot thereby optically scanning the surface. At least one of the first optical element, the second optical element, and the third optical element includes a resin-made lens, at least one of the resin-made lenses has a power diffracting surface, and a surface shape of at least one of power diffracting surfaces is formed so that a power of a diffracting portion and a power of a refractive portion are cancelled out.
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公开(公告)号：US07554708B2
公开(公告)日：2009-06-30
申请号：US12230077
申请日：2008-08-22
申请人： Kohji Sakai , Yoshinori Hayashi , Daisuke Ichii
发明人： Kohji Sakai , Yoshinori Hayashi , Daisuke Ichii
IPC分类号： G02B26/08
CPC分类号： G02B26/125 , G02B26/124 , G02B27/0031 , G02B27/0037 , G02B27/4227 , G02B27/4283
摘要： An optical scanning device includes a first optical element that converts a cross-section shape of a light beam from a semiconductor laser to a desired shape; a second optical element that guides the light beam output from the first optical element to an optical deflector that deflects the light beam; and a third optical element that gathers the light beam deflected by the optical deflector onto a surface to be scanned to form a light spot thereby optically scanning the surface. At least one of the first optical element, the second optical element, and the third optical element includes a resin-made lens, at least one of the resin-made lenses has a power diffracting surface, and a surface shape of at least one of power diffracting surfaces is formed so that a power of a diffracting portion and a power of a refractive portion are cancelled out.
摘要翻译： 光学扫描装置包括将来自半导体激光器的光束的横截面形状转换为期望形状的第一光学元件; 第二光学元件，其将从第一光学元件输出的光束引导到偏转光束的光学偏转器; 以及第三光学元件，其将由所述光学偏转器偏转的光束聚集到待扫描的表面上以形成光点，从而光学扫描所述表面。 所述第一光学元件，所述第二光学元件和所述第三光学元件中的至少一个包括树脂制透镜，所述树脂制透镜中的至少一个具有功率衍射面，并且表面形状中的至少一个 形成功率衍射面，使得衍射部分的功率和折射部分的功率被抵消。
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