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公开(公告)号：US06831764B2
公开(公告)日：2004-12-14
申请号：US10162871
申请日：2002-06-06
IPC分类号： G02B2608
CPC分类号： G02B26/125 , G02B13/0005
摘要： It is an object of this invention to provide a light scanning device capable of suppressing scanning line bending to a low level, which is caused by the arrangement error of a single-element lens serving as an imaging optical element, and an image forming apparatus using the device. In order to achieve the object, according to this invention, an imaging optical system is formed from a single-element lens, and the sectional shapes of the incident and exit surfaces in the main scanning direction are non-arcuated, and the power in the sub scanning direction substantially concentrates on the exit surface. The non-arcuated shape (curvature) of the exit surface in the main scanning direction is so determined as to make the magnification in the sub scanning direction uniform.
摘要翻译： 本发明的目的是提供一种能够将作为摄像光学元件的单体透镜的排列误差引起的扫描线弯曲抑制到低水平的光扫描装置，以及使用 装置。 为了实现该目的，根据本发明，由单一元件透镜形成成像光学系统，并且主扫描方向上的入射面和出射面的截面形状不是弧形的，并且在 副扫描方向基本上集中在出射表面上。 在主扫描方向上出射面的非圆弧形状（曲率）被确定为使副扫描方向的倍率均匀。
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公开(公告)号：US20060033799A1
公开(公告)日：2006-02-16
申请号：US11248255
申请日：2005-10-13
IPC分类号： B41J2/385
CPC分类号： G02B26/125 , G02B26/123 , G02B26/124
摘要： Disclosed is an optical scanning device which includes a light source device, a deflecting system for deflecting a light beam emitted from the light source device, and a scanning optical system for scanning a surface to be scanned, with the light beam deflected by the deflecting system, wherein the scanning optical system includes a scanning optical element disposed so that, with respect to a sub-scan direction, a principal ray of the deflected light beam passes a portion other than an optical axis, wherein the scanning optical element has a sagittal aspherical amount changing surface in which an aspherical amount of a sagittal changes along a main scan direction of the scanning optical element, and wherein, throughout the whole surface to be scanned, the position in the sub-scan direction upon which the deflected light beam impinges is made even.
摘要翻译： 公开了一种光学扫描装置，其包括光源装置，用于偏转从光源装置发射的光束的偏转系统和用于扫描待扫描表面的扫描光学系统，由偏转系统偏转的光束 其特征在于，所述扫描光学系统包括扫描光学元件，所述扫描光学元件相对于副扫描方向，所述偏转光束的主光线通过除了所述光轴以外的部分，其中所述扫描光学元件具有矢状非球面 其中矢量的非球面量沿着扫描光学元件的主扫描方向改变的量变化表面，并且其中在整个扫描的整个表面上，偏转的光束撞击的副扫描方向上的位置是 甚至连
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公开(公告)号：US06803942B2
公开(公告)日：2004-10-12
申请号：US10158887
申请日：2002-06-03
IPC分类号： G02B2608
CPC分类号： G02B26/125 , G02B13/0005
摘要： It is an object of this invention to provide a light scanning device capable of suppressing a scanning line bend to a low level, which is caused by the arrangement error of a single-element lens serving as an imaging optical element, and an image forming apparatus using the device. In order to achieve the object, according to this invention, an imaging optical system is formed from a single-element lens, and a sectional shape of an exit surface in the main scanning direction is an arcuated shape. The power in the sub scanning direction substantially concentrates on the exit surface having an arcuated sectional shape in the main scanning direction, and the arcuated shape (curvature) in the main scanning direction is so determined as to make the magnification in the sub scanning direction uniform.
摘要翻译： 本发明的目的是提供一种能够将作为成像光学元件的单像素透镜的布置误差引起的扫描线弯曲抑制到低电平的光扫描装置，以及图像形成装置 使用设备。 为了实现该目的，根据本发明，由单一元件透镜形成成像光学系统，并且主扫描方向上的出射面的截面形状为弧形。 副扫描方向上的功率基本上集中在主扫描方向上具有弧形截面形状的出射表面，并且确定主扫描方向上的弧形形状（曲率），以使副扫描方向上的倍率均匀 。
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4.发明授权Optical scanning apparatus, and image forming apparatus using such optical scanning apparatus 有权光学扫描装置和使用这种光学扫描装置的图像形成装置公开(公告)号：US07053922B2
公开(公告)日：2006-05-30
申请号：US10631781
申请日：2003-08-01
IPC分类号： B41J27/00
CPC分类号： B41J2/471 , G02B26/124 , G02B26/125
摘要： An optical scanning apparatus includes a light source unit, a deflecting unit for deflecting and scanning a light beam from the light source unit, and a scanning optical system for scanning the light beam deflected by the deflecting unit on a surface to be scanned. The scanning optical system includes a diffraction portion having an aspherical function in a sub-scanning direction.
摘要翻译： 一种光学扫描装置，包括：光源单元，用于偏转和扫描来自光源单元的光束的偏转单元;以及扫描光学系统，用于将由偏转单元偏转的光束扫描在待扫描的表面上。 扫描光学系统包括在副扫描方向上具有非球面功能的衍射部分。
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公开(公告)号：US06774924B2
公开(公告)日：2004-08-10
申请号：US10224650
申请日：2002-08-21
IPC分类号： B41J2700
CPC分类号： G02B13/0005 , G02B26/125
摘要： Disclosed is a scanning optical device and an image forming apparatus using the same, wherein the scanning optical device includes a scanning optical element provided by a single lens. In relation to a predetermined one of two optical surfaces of the single lens having a larger refractive power in a minor scan direction on an optical axis, the shape of optical surface of the single lens is determined so as to satisfy a relation 0.9≦øm/øp≦ømx/øpx=1.0≦1.1øm/øp where øp is a refractive power of the single lens in a minor scan direction on the optical axis, øm is a refractive power of the single lens in the minor scan direction at a most abaxial point, øpx is a refractive power at the predetermined optical surface of the single lens in the minor scan direction on the optical axis, and ømx is a refractive power at the predetermined optical surface of the single lens in the minor scan direction at a most abaxial point.
摘要翻译： 公开了一种扫描光学装置和使用该扫描光学装置的图像形成装置，其中扫描光学装置包括由单个透镜提供的扫描光学元件。 相对于在光轴上的次扫描方向上具有较大屈光力的单透镜的两个光学表面中的预定的一个，单个透镜的光学表面的形状被确定为满足以下关系：øp是折射率 单个透镜在光轴上的次扫描方向上的光焦度，øm是单个透镜在最近背点的次扫描方向上的屈光度，øpx是在单个透镜的预定光学表面处的屈光力 在光轴上的次扫描方向，ømx是在最靠近的点处在小扫描方向上的单个透镜的预定光学表面处的屈光力。
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公开(公告)号：US07248279B2
公开(公告)日：2007-07-24
申请号：US11248255
申请日：2005-10-13
CPC分类号： G02B26/125 , G02B26/123 , G02B26/124
摘要： Disclosed is an optical scanning device which includes a light source device, a deflecting system for deflecting a light beam emitted from the light source device, and a scanning optical system for scanning a surface to be scanned, with the light beam deflected by the deflecting system, wherein the scanning optical system includes a scanning optical element disposed so that, with respect to a sub-scan direction, a principal ray of the deflected light beam passes a portion other than an optical axis, wherein the scanning optical element has a sagittal aspherical amount changing surface in which an aspherical amount of a sagittal changes along a main scan direction of the scanning optical element, and wherein, throughout the whole surface to be scanned, the position in the sub-scan direction upon which the deflected light beam impinges is made even.
摘要翻译： 公开了一种光学扫描装置，其包括光源装置，用于偏转从光源装置发射的光束的偏转系统和用于扫描待扫描表面的扫描光学系统，由偏转系统偏转的光束 其特征在于，所述扫描光学系统包括扫描光学元件，所述扫描光学元件相对于副扫描方向，所述偏转光束的主光线通过除了所述光轴以外的部分，其中所述扫描光学元件具有矢状非球面 其中矢量的非球面量沿着扫描光学元件的主扫描方向改变的量变化表面，并且其中在整个扫描的整个表面上，偏转的光束撞击的副扫描方向上的位置是 甚至连
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公开(公告)号：US07034859B2
公开(公告)日：2006-04-25
申请号：US10633521
申请日：2003-08-05
CPC分类号： G02B26/125 , G02B26/123 , G02B26/124
摘要： Disclosed is an optical scanning device which includes a light source device, a deflecting system for deflecting a light beam emitted from the light source device, and a scanning optical system for scanning a surface to be scanned, with the light beam deflected by the deflecting system, wherein the scanning optical system includes a scanning optical element disposed so that, with respect to a sub-scan direction, a principal ray of the deflected light beam passes a portion other than an optical axis, wherein the scanning optical element has a sagittal aspherical amount changing surface in which an aspherical amount of a sagittal changes along a main scan direction of the scanning optical element, and wherein, throughout the whole surface to be scanned, the position in the sub-scan direction upon which the deflected light beam impinges is made even.
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公开(公告)号：US06683707B2
公开(公告)日：2004-01-27
申请号：US10179172
申请日：2002-06-26
IPC分类号： G02B2608
CPC分类号： G02B26/125 , G02B13/0005
摘要： An object of the present invention is to provide a scanning optical apparatus that is capable of suppressing, to a minute amount, scanning line bending caused by rotational decentration of a single lens that is a scanning optical system, and to provide an image forming apparatus using the optical scanning apparatus. To achieve the stated object, with the technique of the present invention, a single lens is used as a scanning optical system and the surface shape of the single lens is set so that a direction of scanning line bending in the sub scanning direction occurring when an incident surface of the single lens is rotationally decenter about an axis parallel to the main scanning direction is opposite to a direction of scanning line bending in the sub scanning direction occurring when an exit surface is rotationally decenter about the axis parallel to the main scanning direction.
摘要翻译： 本发明的目的是提供一种扫描光学装置，其能够将由作为扫描光学系统的单个透镜的旋转偏心引起的扫描线弯曲微量化，并且提供使用 光学扫描装置。 为了实现上述目的，利用本发明的技术，将单个透镜用作扫描光学系统，并且将单透镜的表面形状设定为使得当副扫描方向上的扫描线弯曲方向发生在 单个透镜的入射面围绕平行于主扫描方向的轴线旋转地偏心，与当出射面围绕平行于主扫描方向的轴旋转地偏心时在副扫描方向上的扫描线弯曲方向相反。
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公开(公告)号：US06683718B2
公开(公告)日：2004-01-27
申请号：US09961422
申请日：2001-09-25
IPC分类号： G02B518
CPC分类号： G02B27/4211 , G02B5/1823 , G02B5/1876 , G02B27/4277
摘要： A laminate-type diffractive optical element which is easily producible and which allows high optical performance to be easily achieved, and an optical system using the same, are disclosed. In the diffractive optical element formed by laminating a plurality of diffraction gratings, when the distance between the uppermost portion of one diffraction grating and the lowermost portion of the other diffraction grating in two diffraction gratings adjacent to each other along the incident direction of a light is represented by D (&mgr;m), these two diffraction gratings are arranged to satisfy the following relation: 10 &mgr;m
摘要翻译： 公开了容易制造且容易实现高光学性能的层叠型衍射光学元件，以及使用该衍射光学元件的光学系统。 在通过层叠多个衍射光栅形成的衍射光学元件中，沿着光的入射方向彼此相邻的两个衍射光栅中的一个衍射光栅的最上部与另一衍射光栅的最下部之间的距离为 由D（mum）表示，这两个衍射光栅被设置为满足以下关系：10μm
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10.发明申请OPTICAL SCANNING APPARATUS AND IMAGE FORMING APPARATUS EMPLOYING THIS APPARATUS 失效使用本设备的光学扫描装置和图像形成装置公开(公告)号：US20080030565A1
公开(公告)日：2008-02-07
申请号：US11870163
申请日：2007-10-10
CPC分类号： G02B26/125
摘要： An optical scanning apparatus including a light source, deflection unit configured to deflect a light flux emitted by the light source, a first optical system configured to condense a divergent light flux emitted by the light source, a second optical system configured to focus the deflected light flux on a target scanning face, where the wavelength of the light flux is short, and the first and second optical systems include respective refractive optical elements.
摘要翻译： 一种光学扫描装置，包括光源，被配置为偏转由光源发射的光束的偏转单元，被配置为冷凝由光源发射的发散光束的第一光学系统;第二光学系统，被配置为将偏转的光聚焦 光束的波长短的目标扫描面上的通量，第一和第二光学系统包括各自的折射光学元件。
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