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公开(公告)号：USRE47001E1
公开(公告)日：2018-08-21
申请号：US15341233
申请日：2016-11-02
CPC分类号： G02B26/124 , G02B7/008 , G02B27/4211 , G02B27/4227
摘要： In a scanning optical apparatus, an illumination optical system has a diffractive power φdM and a refractive power φnM in a main scanning direction, and a ratio φnM/φdM in the main scanning direction for a focal length fi in a range of 10-22 mm satisfies: g2(fi)≤φnM/φdM≤g1(fi), where A(Z)=(1.897×107)Z2+6744Z+0.5255, B(Z)=(2.964×107)Z2+5645Z+0.6494, C(Z)=(3.270×107)Z2+3589Z+0.5250, D(Z)=(5.016×107)Z2+4571Z+0.8139, g1(fi)=fi{D(Z)−B(Z)}/12−5D(Z)/6+11B(Z)/6, g2(fi)=fi{C(Z)−D(Z)}/12−5C(Z)/6+11A(Z)/6 g2(fi)=fi{C(Z)−A(Z)}/12−5C(Z)/6+11A(Z)/6.
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公开(公告)号：US20180239128A1
公开(公告)日：2018-08-23
申请号：US15903135
申请日：2018-02-23
发明人： Hiroyuki Ominato , Hitoshi Fujino
CPC分类号： G02B26/101 , F21V13/04 , G02B26/106 , G02B26/123 , G02B26/125 , G03G15/0409 , G03G15/28
摘要： Scanning optical unit includes: light source; incident optical system including one coupling lens for converting light from the light source into a light beam; optical deflector having a reflecting surface and configured to reflect and deflect the light beam in main scanning direction; and scanning optical system for focusing the deflected light beam on an image surface. The incident optical system converges the light beam on the reflecting surface in sub-scanning direction. Further, 0.01≤(βs/βm)2≤0.27 and βs2
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公开(公告)号：US10345578B2
公开(公告)日：2019-07-09
申请号：US15903135
申请日：2018-02-23
发明人： Hiroyuki Ominato , Hitoshi Fujino
摘要： Scanning optical unit includes: light source; incident optical system including one coupling lens for converting light from the light source into a light beam; optical deflector having a reflecting surface and configured to reflect and deflect the light beam in main scanning direction; and scanning optical system for focusing the deflected light beam on an image surface. The incident optical system converges the light beam on the reflecting surface in sub-scanning direction. Further, 0.01≤(βs/βm)2≤0.27 and βs2
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4.发明授权Light deflector and image forming apparatus including a rotating polygon mirror having displaceable reflecting surfaces 有权光偏转器和图像形成设备包括具有位移反射表面的旋转多面镜公开(公告)号：US09250558B2
公开(公告)日：2016-02-02
申请号：US14632138
申请日：2015-02-26
CPC分类号： G03G15/04036 , G02B26/12 , G03G15/04072
摘要： In a light deflector including a polygon mirror having a plurality of reflecting surfaces; and a motor configured to rotate the polygon mirror, each of the reflecting surfaces, which has leading and trailing edges with respect to a direction of rotation of the polygon mirror and a center between the two edges, is configured to curve with the center displaced with respect to a reference straight line passing through the two edges in a plane perpendicular to an axis of rotation of the polygon mirror, radially, to a first side under a non-operating state in which the motor is not in operation, and to a second side (opposite to the first side) under a first rotating state in which progress of deformation of each of the reflecting surfaces has converged after a lapse of a first period of time from a start of rotation of the motor.
摘要翻译： 一种光偏转器，包括具有多个反射面的多面镜; 以及电动机，其构造成使多面镜旋转，每个反射表面相对于多面镜的旋转方向和两个边缘之间的中心具有前缘和后缘，被构造成与中心位移一致 相对于在垂直于多角镜的旋转轴的平面中的两个边缘的参考直线径向地延伸到电动机不工作的非操作状态的第一侧，以及第二侧 在第一旋转状态下，在从马达的旋转开始经过第一时间段之后，每个反射表面的变形进程已经会聚的第一侧（与第一侧相对）。
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公开(公告)号：US08797622B2
公开(公告)日：2014-08-05
申请号：US14037597
申请日：2013-09-26
IPC分类号： G02B26/08
CPC分类号： G02B27/0075 , G02B5/1895 , G02B26/12 , G02B26/125
摘要： In a scanning optical apparatus, an illumination optical system has a diffractive power φdM in a main scanning direction, a diffractive power φdS in a sub-scanning direction, a refractive power φnM in the main scanning direction, and a refractive power φnS in the sub-scanning direction. A ratio φnM/φdM in the main scanning direction for a focal length fi in a range of 10-30 mm satisfies: g2(fi)≦φnM/φdM≦g1(fi), where A(Z)=(3.532×107)Z2+3023Z+0.7010, B(Z)=(5.719×107)Z2+4169Z+0.7678, C(Z)=(1.727×107)Z2+3244Z+0.4217, D(Z)=(1.373×108)Z2+3232Z+1.224, g1(fi)=fi{D(Z)−B(Z)}/20−0.5D(Z)+1.5B(Z), g2(fi)=fi{C(Z)−D(Z)}/20−0.5C(Z)+1.5A(Z), and a ratio φnS/φdS in the sub-scanning direction satisfies: φnS/φdS
摘要翻译： 在扫描光学装置中，照明光学系统在主扫描方向上具有衍射光焦度dM，副扫描方向的衍射光焦度dS，主扫描方向的折射光焦度nM，nM 折射光焦度和副扫描方向的nS。 对于10-30mm范围内的焦距fi，在主扫描方向上的比值＆lt; nM /＆phgr; dM满足：g2（fi）＆nlE;＆phgr; nM /＆phgr; dM＆nlE; g1（fi），其中A （Z）=（3.532×107）Z2 + 3023Z + 0.7010，B（Z）=（5.719×107）Z2 + 4169Z + 0.7678，C（Z）=（1.727×107）Z2 + 3244Z + 0.4217，D ）=（1.373×108）Z2 + 3232Z + 1.224，g1（fi）= fi {D（Z）-B（Z）} / 20-0.5D（Z）+ 1.5B（Z），g2（fi）= fi（C（Z）-D（Z）} / 20-0.5C（Z）+ 1.5A（Z），副扫描方向上的比例＆lt; nS /＆phgr; dS满足：＆phgr; nS /＆phgr ; dS <1.3。
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公开(公告)号：US11300780B2
公开(公告)日：2022-04-12
申请号：US16934453
申请日：2020-07-21
IPC分类号： G02B26/12
摘要： A scanning optical device includes a scanning lens, a deflector, and a frame configured to support the scanning lens and the deflector. The deflector includes a substrate, a motor fixed to the substrate, and a polygonal mirror rotary driven by the motor. The scanning lens is arranged such that a longitudinal direction thereof is oriented in a main scanning direction of the deflector. The frame includes a supporting part configured to support the scanning lens. The supporting part is located such that the substrate and at least a portion of the supporting part overlap when viewed in a rotation axis direction of the motor.
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公开(公告)号：US20210041688A1
公开(公告)日：2021-02-11
申请号：US16934453
申请日：2020-07-21
IPC分类号： G02B26/12
摘要： A scanning optical device includes a scanning lens, a deflector, and a frame configured to support the scanning lens and the deflector. The deflector includes a substrate, a motor fixed to the substrate, and a polygonal mirror rotary driven by the motor. The scanning lens is arranged such that a longitudinal direction thereof is oriented in a main scanning direction of the deflector. The frame includes a supporting part configured to support the scanning lens. The supporting part is located such that the substrate and at least a portion of the supporting part overlap when viewed in a rotation axis direction of the motor.
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公开(公告)号：US20160363697A1
公开(公告)日：2016-12-15
申请号：US15086798
申请日：2016-03-31
CPC分类号： G02B1/041 , B29D11/00432 , B29K2023/38 , B29L2011/0016 , G02B13/0005 , G02B26/125 , C08L69/00 , C08L23/18
摘要： A method for manufacturing a scanning lens elongate in a main scanning direction is disclosed. The method includes a first step of forming a lens by injecting a molten plastic material into a mold, and a second step of annealing the lens formed in the first step under conditions to modify optical properties of the lens such that: for each position to be scanned along the main scanning direction, |R×Δφ×Ws|≦19.248λ−2020.7 where R is a maximum of retardation by birefringence [nm], Δφ is a variation in optic axis orientation per unit length in a sub scanning direction [deg/mm], Ws is a beam width in the sub scanning direction at an incident surface of the scanning lens [mm], and λ is a wavelength of a beam [nm].
摘要翻译： 公开了一种用于制造沿主扫描方向伸长的扫描透镜的方法。 该方法包括通过将熔融塑料材料注入到模具中来形成透镜的第一步骤，以及在改变透镜的光学特性的条件下退火在第一步骤中形成的透镜的第二步骤，使得：对于每个位置 沿主扫描方向扫描| R×Δφ×Ws |≤19.248λ-2020.7其中R是双折射延迟的最大值[nm]，Δφ是副扫描方向上每单位长度的光轴取向的变化[deg / mm]，Ws是扫描透镜的入射面的副扫描方向的光束宽度[mm]，λ是光束的波长[nm]。
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9.发明授权公开(公告)号：US09372431B2
公开(公告)日：2016-06-21
申请号：US14632127
申请日：2015-02-26
IPC分类号： G03G15/043 , G02B26/12
CPC分类号： G03G15/043 , G02B26/125 , G03G15/0435
摘要： In a scanning optical apparatus including a light source, a light deflector having a reflecting surface, and a single scanning lens, a light flux deflected in a main scanning direction is focused on an image surface. The reflecting and image surfaces are conjugate to each other with respect to a sub scanning direction, Bmax×Bmin>0, and Dmax×Dmin
摘要翻译： 在包括光源，具有反射面的光偏转器和单个扫描透镜的扫描光学装置中，沿主扫描方向偏转的光束被聚焦在图像表面上。 反射和图像表面相对于副扫描方向彼此共轭，Bmax×Bmin> 0，Dmax×Dmin <0，其中Bmax和Bmin分别是近轴焦点的最大值和最小值， Dmax和Dmin分别是副扫描平面中的焦深的中点的最大值和最小值，这些值是参照图像表面确定的，其中图像表面的值为0， 图像表面后面的扫描透镜侧越远，具有正值。
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公开(公告)号：US08913313B2
公开(公告)日：2014-12-16
申请号：US13625605
申请日：2012-09-24
CPC分类号： G02B26/124 , G02B27/0037
摘要： A scanning optical apparatus includes: a light source; a light deflector configured to deflect the light beam from the light source in a main scanning direction; an incident optical system disposed between the light source and the light deflector and configured to render the light beam from the light source nearly parallel in the main scanning direction and to converge the light beam in a sub-scanning direction to bring the light beam to a focus in proximity to the light deflector; and a scanning lens configured to focus the light beam deflected by the light deflector onto a target surface to form spot-like images. The incident optical system includes one or more lenses which provide at least one refracting surface and at least one diffraction surface, and φnS/φds
摘要翻译： 扫描光学装置包括：光源; 光偏转器，被配置为在主扫描方向偏转来自光源的光束; 入射光学系统，设置在所述光源和所述光偏转器之间，并且被配置为使来自所述光源的所述光束在所述主扫描方向上几乎平行并且使所述光束沿副扫描方向会聚，以将所述光束 聚焦在偏光板附近; 以及扫描透镜，被配置为将由偏转器偏转的光束聚焦到目标表面上以形成点状图像。 入射光学系统包括提供至少一个折射表面和至少一个衍射表面的一个或多个透镜，并且满足＆lt; n＆lt;＆phgr; ds <0，其中＆amp; nS是副扫描方向上的屈光力 dS是副扫描方向的衍射光焦度。
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