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1. 发明授权

US06606179B2 Optical scanning device, line-image forming optical system therein, imaging adjustment method in the device and image forming apparatus 失效
公开(公告)号：US06606179B2
公开(公告)日：2003-08-12
申请号：US10279848
申请日：2002-10-25
申请人： Seizo Suzuki , Magane Aoki , Hiromichi Atsuumi , Kohji Sakai
发明人： Seizo Suzuki , Magane Aoki , Hiromichi Atsuumi , Kohji Sakai
IPC分类号： G02B2608
CPC分类号： G02B26/128
摘要： A light source emitting a light flux; a coupling optical system couples the light flux from the light source to a subsequent optical system by transforming it into a parallel light flux, an approximately convergent light flux or an approximately divergent light flux; a light deflector reflects the light flux from the coupling optical system with a deflection reflective surface, and deflects it; a scanning and imaging optical system condenses the deflected light flux from the light deflector onto a surface to be scanned as a beam spot; and a correcting optical system is provided for self correcting shift of focal position of the beam spot on the surface to be scanned occurring due to environmental change or the like. The correcting optical system comprises at least one pair of a resin-made lens having an anamorphic surface having a negative power in each of main scanning direction and sub-scanning direction and a glass-made lens having an anamorphic surface having a positive power at least in sub-scanning direction, and is disposed between the coupling optical system and deflection reflective surface.

2. 发明授权

US06448998B1 Scanning and imaging lens, optical scanning device and image forming apparatus 有权
标题翻译：扫描和成像透镜，光学扫描装置和成像装置
公开(公告)号：US06448998B1
公开(公告)日：2002-09-10
申请号：US09649179
申请日：2000-08-29
申请人： Seizo Suzuki , Magane Aoki , Hiromichi Atsuumi , Kohji Sakai
发明人： Seizo Suzuki , Magane Aoki , Hiromichi Atsuumi , Kohji Sakai
IPC分类号： B41J2700
CPC分类号： B41J2/442 , G02B13/0005 , G02B26/125
摘要： A scanning and imaging lens condensing a light flux deflected by a deflector onto a surface to be scanned as a beam spot, has a plurality of lenses. A shape in main scanning cross section of each of both surfaces of a lens on a side of deflector has a convex shape, and a shape in main scanning cross section of at least one surface of the lens on the side of deflector is a non-arc shape. A shape in main scanning cross section of a first surface of a lens on a side of surface to be scanned has a convex shape, and a shape in main scanning cross section of at least one surface of the lens on the side of surface to be scanned is a non-arc shape. The scanning and imaging lens has at least two special toroidal surfaces in each of which a curvature in sub-scanning cross section varies in main scanning direction.
摘要翻译：将由偏转器偏转的光束会聚到待扫描的表面上作为束斑的扫描和成像透镜具有多个透镜。在偏转器一侧的透镜的两个表面的主扫描横截面中的形状具有凸形形状，并且在偏转器一侧的透镜的至少一个表面的主扫描横截面中的形状是非平面形状，弧形。在待扫描表面侧的透镜的第一表面的主扫描横截面中的形状具有凸形形状，并且在表面侧的透镜的至少一个表面的主扫描横截面中的形状为扫描是非弧形的。扫描和成像透镜具有至少两个特殊的环形表面，每个特殊的环形表面在副扫描横截面中的曲率在主扫描方向上变化。

3. 发明授权

US07215354B1 Scanning optical system, optical scanning device and image forming apparatus 失效
标题翻译：扫描光学系统，光学扫描装置和成像装置
公开(公告)号：US07215354B1
公开(公告)日：2007-05-08
申请号：US09678611
申请日：2000-10-04
申请人： Kohji Sakai , Magane Aoki , Seizo Suzuki , Hiromichi Atsuumi
发明人： Kohji Sakai , Magane Aoki , Seizo Suzuki , Hiromichi Atsuumi
IPC分类号： B41J27/00
CPC分类号： G02B26/125 , G02B13/0005
摘要： A scanning optical system condensing a beam deflected by an optical deflector so as to form a beam spot on a surface to be scanned, comprises two lenses. A lens on the side of optical deflector has a negative refracting power in sub-scanning direction. A lens on the side of surface to be scanned has a positive refracting power in the sub-scanning direction. At least one lens surface of the lens surfaces of the two lenses is such that a shape in a sub-scanning section thereof is a non-arc shape.
摘要翻译：一种扫描光学系统，其将由光学偏转器偏转的光束聚光以在待扫描的表面上形成束斑，包括两个透镜。光偏转器一侧的透镜在副扫描方向上具有负的折射光焦度。待扫描表面一侧的透镜在副扫描方向上具有正折射力。两个透镜的透镜表面的至少一个透镜表面使得其副扫描部分中的形状为非弧形。

4. 发明授权

US06509995B1 Optical scanning device, line-image forming optical system therein, imaging adjustment method in the device and image forming apparatus 有权
标题翻译：光扫描装置，其中的线图像形成光学系统，装置中的成像调整方法和图像形成装置
公开(公告)号：US06509995B1
公开(公告)日：2003-01-21
申请号：US09653330
申请日：2000-08-31
申请人： Seizo Suzuki , Magane Aoki , Hiromichi Atsuumi , Kohji Sakai
发明人： Seizo Suzuki , Magane Aoki , Hiromichi Atsuumi , Kohji Sakai
IPC分类号： G02B2608
CPC分类号： G02B26/128
摘要： A light source emitting a light flux; a coupling optical system couples the light flux from the light source to a subsequent optical system by transforming it into a parallel light flux, an approximately convergent light flux or an approximately divergent light flux; a light deflector reflects the light flux from the coupling optical system with a deflection reflective surface, and deflects it; a scanning and imaging optical system condenses the deflected light flux from the light deflector onto a surface to be scanned as a beam spot; and a correcting optical system is provided for self correcting shift of focal position of the beam spot on the surface to be scanned occurring due to environmental change or the like. The correcting optical system comprises at least one pair of a resin-made lens having an anamorphic surface having a negative power in each of main scanning direction and sub-scanning direction and a glass-made lens having an anamorphic surface having a positive power at least in sub-scanning direction, and is disposed between the coupling optical system and deflection reflective surface.
摘要翻译：发射光束的光源; 耦合光学系统将来自光源的光束通过将其变换成平行光束，近似收敛的光束或大致发散的光束而将光束耦合到后续的光学系统; 光偏转器用耦合光学系统反射具有偏转反射表面的光束，并使其偏转; 扫描和成像光学系统将来自光偏转器的偏转光束会聚到待扫描的表面上作为光斑; 并且提供了一种校正光学系统，用于自动校正由于环境变化等而发生的待扫描表面上的束斑的焦点位置偏移。校正光学系统包括至少一对树脂制透镜，其具有在主扫描方向和副扫描方向各自具有负功率的变形表面，并且玻璃制镜片具有至少具有正功率的变形表面并且设置在耦合光学系统和偏转反射表面之间。

5. 发明授权

US06256133B1 Optical scanning apparatus 有权
标题翻译：光学扫描装置
公开(公告)号：US06256133B1
公开(公告)日：2001-07-03
申请号：US09344633
申请日：1999-06-25
申请人： Seizo Suzuki , Magane Aoki , Kohji Sakai
发明人： Seizo Suzuki , Magane Aoki , Kohji Sakai
IPC分类号： G02B2608
CPC分类号： G02B26/125
摘要： An optical scanning apparatus is constructed such that a light beam from a light source is formed into a linear image extending in a main scanning direction and is caused to be deflected at a constant velocity by virtue of a light deflecting system having a deflective reflecting surface which is located in a vicinity of an image formation position of the linear image. The deflected light beam is allowed to transmit through a scanning image formation lens so as to be converged into a beam spot on a surface to be scanned, thus causing the beam spot to scan the surface to be scanned at a constant speed. The scanning image formation lens is formed by more than two lens elements and has at least one special surface special surface in which a sub-scanning curvature changes in a main scanning direction according to a distance from an optical axis toward a periphery of the lens surface such that a line passing through centers of curvature in the sub scanning curvature is curved, and at least one of the special surfaces is formed so that the change of a sub-scanning curvature is non-symmetrical in the main scanning direction and the curvature has at least two or more than two extreme values.
摘要翻译：光学扫描装置被构造成使得来自光源的光束被形成为在主扫描方向上延伸的线性图像，并且由于具有偏转反射表面的光偏转系统而被以恒定速度偏转，位于线性图像的图像形成位置附近。允许偏转的光束通过扫描图像形成透镜传播，以便会聚到要扫描的表面上的光束点中，从而使光斑以恒定的速度扫描待扫描的表面。扫描图像形成透镜由多于两个透镜元件形成，并且具有至少一个特殊表面特殊表面，其中副扫描曲率沿主扫描方向根据从光轴朝向透镜表面的周边的距离而变化使得通过在副扫描曲率中的曲率中心的线弯曲，并且形成至少一个特殊表面，使得副扫描曲率的变化在主扫描方向上不对称，并且曲率具有至少两个或两个以上的极值。

6. 发明授权

US06388792B1 Optical scanning device and image forming apparatus 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US06388792B1
公开(公告)日：2002-05-14
申请号：US09612634
申请日：2000-07-07
申请人： Hiromichi Atsuumi , Seizo Suzuki , Magane Aoki , Kohji Sakai
发明人： Hiromichi Atsuumi , Seizo Suzuki , Magane Aoki , Kohji Sakai
IPC分类号： G02B2608
CPC分类号： G02B13/0005
摘要： An optical scanning device deflects one or a plurality of light flux(es) originating from a light source by an optical deflecting unit, gathers the deflected light flux(es) to cause it(them) to form a beam spot(s) on a surface to be scanned by a scanning and image-forming optical system, and, thus, performs optical scanning of the surface to be scanned. The scanning and image-forming optical system includes one or a plurality of optical component(s) including a lens. At least one surface of the lens included in the scanning and image-forming optical system is a sub-non-arc surface having an arc or non-arc shape in a main scanning plane, and a non-arc shape in a sub-scanning plane. The sub-non-arc surface is formed in a lens in which a diameter of a light flux passing through the scanning and image-forming optical system is largest in the sub-scanning plane’.
摘要翻译：光学扫描装置通过光学偏转单元偏转来自光源的一个或多个光通量，收集偏转的光束以使它们（它们）在一个或多个光束上形成一束光斑通过扫描和成像光学系统扫描的表面，并且因此对要扫描的表面进行光学扫描。扫描和成像光学系统包括一个或多个包括透镜的光学部件。包括在扫描和成像光学系统中的透镜的至少一个表面是在主扫描平面中具有弧或非弧形的亚非弧形表面，并且在副扫描中具有非弧形飞机副非弧面形成在副扫描平面'中通过扫描图像形成光学系统的光束的直径最大的透镜中。

7. 发明授权

US06801351B2 Optical scanning device, line-image forming optical system therein, imaging adjustment method in the device and image forming apparatus 有权
标题翻译：光扫描装置，其中的线图像形成光学系统，装置中的成像调整方法和图像形成装置
公开(公告)号：US06801351B2
公开(公告)日：2004-10-05
申请号：US10278810
申请日：2002-10-24
申请人： Seizo Suzuki , Magane Aoki , Hiromichi Atsuumi , Kohji Sakai
发明人： Seizo Suzuki , Magane Aoki , Hiromichi Atsuumi , Kohji Sakai
IPC分类号： G02B2608
CPC分类号： G02B26/128
摘要： A light source emitting a light flux; a coupling optical system couples the light flux from the light source to a subsequent optical system by transforming it into a parallel light flux, an approximately convergent light flux or an approximately divergent light flux; a light deflector reflects the light flux from the coupling optical system with a deflection reflective surface, and deflects it; a scanning and imaging optical system condenses the deflected light flux from the light deflector onto a surface to be scanned as a beam spot; and a correcting optical system is provided for self correcting shift of focal position of the beam spot on the surface to be scanned occurring due to environmental change or the like. The correcting optical system comprises at least one pair of a resin-made lens having an anamorphic surface having a negative power in each of main scanning direction and sub-scanning direction and a glass-made lens having an anamorphic surface having a positive power at least in sub-scanning direction, and is disposed between the coupling optical system and deflection reflective surface.
摘要翻译：发射光束的光源; 耦合光学系统将来自光源的光束通过将其变换成平行光束，近似收敛的光束或大致发散的光束而将光束耦合到后续的光学系统; 光偏转器用耦合光学系统反射具有偏转反射表面的光束，并使其偏转; 扫描和成像光学系统将来自光偏转器的偏转光束会聚到待扫描的表面上作为光斑; 并且提供了一种校正光学系统，用于自动校正由于环境变化等而发生的待扫描表面上的束斑的焦点位置偏移。校正光学系统包括至少一对树脂制透镜，其具有在主扫描方向和副扫描方向各自具有负功率的变形表面，以及具有至少具有正功率的变形表面的玻璃制镜片并且设置在耦合光学系统和偏转反射表面之间。

8. 发明授权

US06347004B1 Optical scanning apparatus and scanning image forming lens 有权
公开(公告)号：US06347004B1
公开(公告)日：2002-02-12
申请号：US09369612
申请日：1999-08-06
申请人： Seizo Suzuki , Magane Aoki , Kohji Sakai
发明人： Seizo Suzuki , Magane Aoki , Kohji Sakai
IPC分类号： G02B2608
CPC分类号： G02B26/125 , Y10S359/90
摘要： An optical scanning apparatus includes a light source for outputting light, a first lens system arranged to receive the light output from the light source and to transmit a light flux therefrom, an optical deflector arranged to receive the light flux from the first lens system and having a deflecting reflective plane to deflect the light flux from a surface therefrom and a second lens system arranged to receive the light flux deflected from the optical deflector and to condense the deflected luminous flux into an optical beam spot on a surface to be scanned so as to form images having image heights, the luminous flux condensed by the second lens system into the optical beam spot including an optical beam waist. The second lens system has a scanning and image forming element including at least one surface including a plurality of portions each having a non-arc shape in a sub-scanning direction such that at least two of the non-arc shapes are different from each other and such that an effective writing width W and a width Fs of the sub-scanned image-surface curvature located within the effective writing width satisfies the condition Fs/W

9. 发明授权

US07006120B2 Multi-beam optical scanning apparatus and image forming apparatus 有权
标题翻译：多光束光学扫描装置和成像装置
公开(公告)号：US07006120B2
公开(公告)日：2006-02-28
申请号：US10635520
申请日：2003-08-07
申请人： Kohji Sakai , Magane Aoki , Yoshinori Hayashi , Seizo Suzuki , Hiromichi Atsuumi
发明人： Kohji Sakai , Magane Aoki , Yoshinori Hayashi , Seizo Suzuki , Hiromichi Atsuumi
IPC分类号： B41J27/00
CPC分类号： B41J2/473
摘要： A multi-beam optical scanning apparatus includes a semiconductor laser array slanted relative to a sub-scanning direction and emitting a plurality of optical beams; a coupling lens converting a shape of each optical beam emitted from the semiconductor laser array; and an aperture with an opening having a size of Am×As, arranged after the coupling lens in a direction in which the optical beam progresses, where Am is a dimension of the opening in a main scanning direction and As is a dimension of the opening in the sub-scanning direction. When a length in the main scanning direction of a contour line defined by 1/e2 strength of a maximum strength of an optical beam at the position of the aperture is Lm, and a length in the sub-scanning direction of the contour line defined by 1/e2 strength of the maximum strength of the optical beam at the position of the aperture is Ls, the following conditional expressions are satisfied: Am
摘要翻译：多光束光学扫描装置包括相对于副扫描方向倾斜并发射多个光束的半导体激光器阵列; 转换从半导体激光器阵列发射的每个光束的形状的耦合透镜; 以及具有尺寸为A mA x A s s的开口的孔，沿着光束进行的方向设置在耦合透镜之后，其中A m 是主扫描方向上的开口的尺寸，A S是子扫描方向上的开口的尺寸。当在孔径的位置处的光束的最大强度的1 / e 2强度确定的轮廓线的主扫描方向上的长度为L / 并且在孔径的位置处的光束的最大强度的强度的1 / e 2强度限定的轮廓线的副扫描方向上的长度为L / SUB>，满足以下条件表达式

10. 发明授权

US06999208B2 Optical scanner, optical scanning method, scanning image forming optical system, optical scanning lens and image forming apparatus 失效
标题翻译：光学扫描仪，光学扫描方法，扫描成像光学系统，光学扫描透镜和图像形成装置
公开(公告)号：US06999208B2
公开(公告)日：2006-02-14
申请号：US09955181
申请日：2001-09-19
申请人： Seizo Suzuki , Hiromichi Atsuumi , Kohji Sakai , Magane Aoki , Hiroyuki Suhara
发明人： Seizo Suzuki , Hiromichi Atsuumi , Kohji Sakai , Magane Aoki , Hiroyuki Suhara
IPC分类号： H04N1/04
CPC分类号： G02B26/127
摘要： An optical scanner which performs optical scanning of a surface to be scanned by deflecting a luminous flux having a wavelength λ from a light source by means of an optical deflector, and condensing the deflected flux toward the surface to be scanned through a scanning image forming optical system, thereby forming an optical spot on the surface to be scanned. The scanning image forming optical system has at least one lens, and when the focal length fσ in the main scanning direction at a surface accuracy σi is defined as follows: fσ={2.6846 λ×√(k)×fm2/ω2}−fm where, fm represents the focal length in the main scanning direction of the scanning image forming optical system; k represents the number of lens surfaces; ω represents the aimed spot diameter of the optical spot in the main scanning direction at an image height of 0; σI represents the surface accuracy of the i-th lens surface as counted from the optical deflector side; n represents the refractive index of material of the lens having the i-th lens surface; and 1/l represents the spatial frequency in the main scanning direction on the lens surface; then, the surface accuracy σi, the focal length fσ, the refractive index n, and the spatial frequency 1/L satisfy, for each lens surface, the following condition: 0
摘要翻译：一种光学扫描器，其通过借助于光学偏转器偏转来自光源的具有波长λ的光束来执行对要扫描的表面的光学扫描，并且通过扫描图像形成光学器件将被偏转的通量朝向被扫描的表面聚焦从而在待扫描的表面上形成光斑。扫描图像形成光学系统具有至少一个透镜，并且当以表面精度sigmai的主扫描方向的焦距f sigma定义如下时：fsigma = {2.6846lambdax√（k）xfm 2

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