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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. 再颁专利

USRE38195E1 Multi-beam optical scanner 有权
标题翻译：多光束光学扫描仪
公开(公告)号：USRE38195E1
公开(公告)日：2003-07-22
申请号：US09421332
申请日：1999-10-18
申请人： Kohji Sakai , Magane Aoki
发明人： Kohji Sakai , Magane Aoki
IPC分类号： G02B2608
CPC分类号： G02B26/123
摘要： A multi-beam optical scanner, in which a lateral magnification &bgr; in a composite system of an optical system between the light source for a multi-beam and the scanned surface satisfies the condition: 2
摘要翻译：一种多光束光学扫描器，其中在用于多光束的光源和扫描的表面之间的光学系统的复合系统中的横向放大率β满足条件：2 <β≤8.5，以及多个光扫描表面上的斑点执行彼此相邻的扫描线的光学扫描。

5. 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。

6. 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。

7. 发明授权

US5831758A Multi-beam optical scanner 失效
标题翻译：多光束光学扫描仪
公开(公告)号：US5831758A
公开(公告)日：1998-11-03
申请号：US868737
申请日：1997-06-04
申请人： Kohji Sakai , Magane Aoki
发明人： Kohji Sakai , Magane Aoki
IPC分类号： B41J2/44 , G02B13/18 , G02B13/24 , G02B26/10 , G02B26/12 , H04N1/113 , G02B26/08
CPC分类号： G02B26/123
摘要： A multi-beam optical scanner, in which a lateral magnification .beta. in a composite system of an optical system between the light source for a multi-beam and the scanned surface satisfies the condition: 2
摘要翻译：一种多光束光学扫描器，其中在用于多光束的光源和扫描的表面之间的光学系统的复合系统中的横向放大率β满足条件：2 <β= 8.5，以及多个被扫描表面上的光点执行彼此相邻的扫描线的光学扫描。

8. 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。

9. 发明授权

US06348988B2 Scanning image forming lens and optical scanning apparatus 有权
标题翻译：扫描成像透镜和光学扫描装置
公开(公告)号：US06348988B2
公开(公告)日：2002-02-19
申请号：US09867317
申请日：2001-05-29
申请人： Magane Aoki , Kohji Sakai
发明人： Magane Aoki , Kohji Sakai
IPC分类号： G02B2608
CPC分类号： G02B26/125 , Y10S359/90
摘要： A scanning and image forming lens system in an optical scanning apparatus optical scans a surface to be scanned by deflecting a luminous flux emitted from a light source in a direction corresponding to a main scanning direction via an optical deflector at equiangular velocity. The scanning image forming lens system transmits the luminous flux deflected by the optical deflector so as to condense the luminous flux into an optical beam spot on the surface to be scanned and to scan the surface to be scanned with the optical beam spot. The scanning image forming lens system includes one or more image forming optical elements including at least one lens. At least one lens surface of the at least one lens of the scanning image forming lens system has a non-arc shape in a sub scanning cross section. The non-arc shape changes according to a position in a direction that is substantially perpendicular to the sub scanning cross section such that a positional deviation of the optical beam waist of the deflected luminous flux from the surface to be scanned at each position in the direction perpendicular to the sub scanning cross section, which is caused by a paraxial curvature of field of the scanning image forming lens system in a sub scanning direction, is corrected.
摘要翻译：在光学扫描装置中的扫描和成像透镜系统通过经由光学偏转器以等角度偏转从与主扫描方向相对应的方向从光源发射的光束来光扫描待扫描的表面。扫描图像形成透镜系统透射由光偏转器偏转的光束，以将光束冷凝成待扫描的表面上的光束点，并用光束点扫描待扫描的表面。扫描图像形成透镜系统包括一个或多个包括至少一个透镜的成像光学元件。扫描图像形成透镜系统的至少一个透镜的至少一个透镜表面在副扫描横截面中具有非弧形。非圆弧形状根据基本上垂直于副扫描横截面的方向的位置而变化，使得偏转的光束的光束腰部与待扫描的表面在每个位置上的方向的位置偏差校正由副扫描方向的扫描图像形成透镜系统的近轴曲率引起的与副扫描截面垂直的方向。

10. 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

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