Optical scanning device, line-image forming optical system therein, imaging adjustment method in the device and image forming apparatus
    21.
    发明授权
    Optical scanning device, line-image forming optical system therein, imaging adjustment method in the device and image forming apparatus 有权
    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

    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。

    Optical scanning device having a temperature compensation unit
    22.
    发明授权
    Optical scanning device having a temperature compensation unit 失效
    具有温度补偿单元的光学扫描装置

    公开(公告)号:US06785028B1

    公开(公告)日:2004-08-31

    申请号:US09716949

    申请日:2000-11-22

    IPC分类号: G02B2608

    CPC分类号: G02B26/128 Y10S359/90

    摘要: In an optical scanning device and image forming apparatus according to the present invention, a light source emits a light beam, and a scanning optical unit deflects the light beam from the light source and focuses the deflected light beam to form a light spot on a scanned surface, the scanned surface being scanned by the light beam from the scanning optical unit. A temperature detection unit detects a temperature of the scanning optical unit and its neighboring locations. A temperature compensation unit adjusts a focal-point position of the light beam on the scanned surface in accordance with a change in the temperature detected by the temperature detection unit, the temperature compensation unit adjusting the focal-point position of the light beam by directly varying a focusing effect of a corrector lens on the light beam from the light source by a controlled amount of movement of the corrector lens along its optical axis that corresponds to the temperature change.

    摘要翻译: 在根据本发明的光学扫描装置和图像形成装置中,光源发射光束,扫描光学单元使来自光源的光束偏转并聚焦偏转的光束,以在扫描的光束上形成光点 表面,被扫描的表面被来自扫描光学单元的光束扫描。 温度检测单元检测扫描光学单元及其相邻位置的温度。 温度补偿单元根据由温度检测单元检测到的温度变化来调整扫描面上的光束的焦点位置,温度补偿单元通过直接变化来调整光束的焦点位置 通过对应于温度变化的校正透镜沿着其光轴的受控量的运动,校正透镜对来自光源的光束的聚焦效果。

    Multi-beam scanning device, multi-beam scanning method, light source device, and image forming apparatus
    23.
    发明授权
    Multi-beam scanning device, multi-beam scanning method, light source device, and image forming apparatus 有权
    多光束扫描装置,多光束扫描方法,光源装置和成像装置

    公开(公告)号:US06596985B2

    公开(公告)日:2003-07-22

    申请号:US09788415

    申请日:2001-02-21

    IPC分类号: G02B2608

    CPC分类号: G02B26/123

    摘要: In a multi-beam scanning device and method of the present invention, a semiconductor laser array having a plurality of light emitting parts emitting multiple laser beams is provided. A rotary deflector deflects the laser beams emitted by the light emitting parts of the semiconductor laser array. The deflected laser beams from the rotary deflector is focused onto a scanned surface to form a plurality of beam spots that are separated on the scanned surface in a sub-scanning direction, the scanned surface being scanned simultaneously with the plurality of beam spots in a main scanning direction by a rotation of the rotary deflector. The laser array is configured such that the light emitting parts are arrayed along a line that is at an inclination angle &phgr; to the sub-scanning direction, the inclination angle &phgr; measured in degrees and meeting the conditions 0≦&phgr;

    摘要翻译: 在本发明的多光束扫描装置和方法中,提供了具有发射多个激光束的多个发光部的半导体激光器阵列。 旋转偏转器使由半导体激光器阵列的发光部分发射的激光束偏转。 来自旋转偏转器的偏转的激光束被聚焦到扫描的表面上,以形成在扫描的表面上沿副扫描方向分离的多个光束点,扫描的表面与主扫描的多个光束点同时被扫描 通过旋转偏转器的旋转而进行扫描方向。 激光器阵列被构造成使得发光部分沿着与副扫描方向成倾斜角度的线排列,倾斜角度phi以度数测量并满足条件0 <= phi <90,并且该 扫描线间距P,激光器阵列的发光部分的阵列间距rho和由等式定义的参数K,其中,lamb是发射的激光束的波长,ωgaz是副扫描方向上的目标光点直径 ,满足以下条件:

    Zoom lens, imaging device and information device
    25.
    发明授权
    Zoom lens, imaging device and information device 有权
    变焦镜头,成像设备和信息设备

    公开(公告)号:US09013802B2

    公开(公告)日:2015-04-21

    申请号:US14200639

    申请日:2014-03-07

    摘要: A zoom lens includes, in order from an object side in an optical axis a first lens group having a positive refractive power, a second lens group having a negative refractive power; a third lens group having a negative refractive power, a fourth lens group having a positive refractive power, a fifth lens group having a positive refractive power, and an aperture stop arranged between the third lens group and the fourth lens group, an interval between the first lens group and the second lens group being increased, an interval between the second lens group and the third lens group being varied, an interval between the third lens group and the fourth lens group being decreased, and an interval between the fourth lens group and the fifth lens group being decreased when changing a magnification from a wide-angle end to a telephoto end.

    摘要翻译: 变焦透镜从光轴的物体侧起依次具有具有正折光力的第一透镜组,具有负折光力的第二透镜组; 具有负屈光力的第三透镜组,具有正折光力的第四透镜组,具有正折光力的第五透镜组,以及布置在第三透镜组和第四透镜组之间的间隙, 第一透镜组和第二透镜组增加,第二透镜组和第三透镜组之间的间隔变化,第三透镜​​组和第四透镜组之间的间隔减小,并且第四透镜组与第三透镜组之间的间隔 当从广角端到远摄端改变放大倍率时,第五透镜组减小。

    ZOOM LENS AND INFORMATION DEVICE
    26.
    发明申请
    ZOOM LENS AND INFORMATION DEVICE 有权
    变焦镜头和信息设备

    公开(公告)号:US20110002048A1

    公开(公告)日:2011-01-06

    申请号:US12828648

    申请日:2010-07-01

    IPC分类号: G02B15/14

    CPC分类号: G02B15/173 G02B13/18

    摘要: A zoom lens includes a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a fourth lens group having a positive refractive power, which are disposed in order from an object side, and an aperture stop disposed at an object side of the third lens group. When changing the magnification from a wide angle end to a telephoto end, an interval between the first and second lens groups increases, an interval between the second and third lens groups decreases, and an interval between the third and fourth lens groups increases. The first lens group includes a negative lens, a positive lens, and a positive lens, in order from the object side. Predetermined conditions of a refractive index of the negative lens E1 for a d line, an Abbe number for d line, and a relative partial dispersion are satisfied.

    摘要翻译: 变焦透镜包括具有正折光力的第一透镜组,具有负折光力的第二透镜组,具有正折射光焦度的第三透镜组和具有正折射光焦度的第四透镜组,其按顺序布置 并且设置在第三透镜组的物体侧的孔径光阑。 当从广角端到望远端改变放大倍率时,第一和第二透镜组之间的间隔增加,第二和第三透镜组之间的间隔减小,并且第三和第四透镜组之间的间隔增加。 从物体侧开始,第一透镜组包括负透镜,正透镜和正透镜。 d线的负透镜E1的折射率的预定条件,d线的阿贝数和相对部分色散被满足。

    Zoom lens and imaging apparatus
    27.
    发明授权
    Zoom lens and imaging apparatus 失效
    变焦镜头和成像设备

    公开(公告)号:US07616384B2

    公开(公告)日:2009-11-10

    申请号:US12209406

    申请日:2008-09-12

    申请人: Hiromichi Atsuumi

    发明人: Hiromichi Atsuumi

    IPC分类号: G02B15/14 G02B15/02 G02B15/08

    CPC分类号: G02B15/173

    摘要: A zoom lens includes, in order along an optical axis from a side nearest to a photographic subject to an imaging site, a first lens group I that comprises a positive refraction index and is anchored in place when performing a magnification of an image, a second lens group II that comprises a negative refraction index, a third lens group III that comprises a positive refraction index, a fourth lens group IV that comprises a positive refraction index, a fifth lens group V that comprises a negative refraction index, and a sixth lens group VI that comprises a positive refraction index, wherein, when magnifying from a wide angle end to a telephoto end, the magnification thereof is performed by moving the second lens group II, the fourth lens group IV, and the fifth lens group V, at a minimum, the first lens group I comprises a reflective optical element, which is for refracting a light path therein, an additional lens group VII, comprising a negative refraction index, is interposed between the lens groups of the zoom lens as an additional lens group thereof, at a minimum, and a magnification to a long focal distance that is even longer than the telephoto end is performed thereby.

    摘要翻译: 变焦透镜从沿着摄影对象最接近成像位置的一侧沿着光轴顺序包括第一透镜组I,其包括正折射率,并且当执行图像的放大倍数时被锚定就位;第二透镜组I 包括负折射率的透镜组II,包括正折射率的第三透镜组III,包括正折射率的第四透镜组IV,包括负折射率的第五透镜组V和包括负折射率的第五透镜组V,以及第六透镜 组VI包括正折射率,其中当从广角端到远摄端放大时,通过将第二透镜组II,第四透镜组IV和第五透镜组V移动到 第一透镜组I包括用于折射其中的光路的反射光学元件,包括负折射率的附加透镜组VII介于 因此,将变焦透镜的透镜组作为其附加透镜组,至少为远,并且进行比长焦端更长的焦距的倍率。

    ZOOM LENS AND IMAGING APPARATUS
    28.
    发明申请
    ZOOM LENS AND IMAGING APPARATUS 失效
    变焦镜头和成像装置

    公开(公告)号:US20090073572A1

    公开(公告)日:2009-03-19

    申请号:US12209406

    申请日:2008-09-12

    申请人: Hiromichi Atsuumi

    发明人: Hiromichi Atsuumi

    IPC分类号: G02B15/16 G02B15/12

    CPC分类号: G02B15/173

    摘要: A zoom lens includes, in order along an optical axis from a side nearest to a photographic subject to an imaging site, a first lens group I that comprises a positive refraction index and is anchored in place when performing a magnification of an image, a second lens group II that comprises a negative refraction index, a third lens group III that comprises a positive refraction index, a fourth lens group IV that comprises a positive refraction index, a fifth lens group V that comprises a negative refraction index, and a sixth lens group VI that comprises a positive refraction index, wherein, when magnifying from a wide angle end to a telephoto end, the magnification thereof is performed by moving the second lens group II, the fourth lens group IV, and the fifth lens group V, at a minimum, the first lens group I comprises a reflective optical element, which is for refracting a light path therein, an additional lens group VII, comprising a negative refraction index, is interposed between the lens groups of the zoom lens as an additional lens group thereof, at a minimum, and a magnification to a long focal distance that is even longer than the telephoto end is performed thereby.

    摘要翻译: 变焦透镜从沿着摄影对象最接近成像位置的一侧沿着光轴顺序包括第一透镜组I,其包括正折射率,并且当执行图像的放大倍数时被锚定就位;第二透镜组I 包括负折射率的透镜组II,包括正折射率的第三透镜组III,包括正折射率的第四透镜组IV,包括负折射率的第五透镜组V和包括负折射率的第五透镜组V,以及第六透镜 组VI包括正折射率,其中当从广角端到远摄端放大时,通过将第二透镜组II,第四透镜组IV和第五透镜组V移动到 第一透镜组I包括用于折射其中的光路的反射光学元件,包括负折射率的附加透镜组VII介于 因此,将变焦透镜的透镜组作为其附加透镜组,至少为远,并且进行比长焦端更长的焦距的倍率。

    Holding mechanism for long length optical element, optical scanning device, and image forming device
    29.
    发明申请
    Holding mechanism for long length optical element, optical scanning device, and image forming device 失效
    长长度光学元件,光学扫描装置和图像形成装置的保持机构

    公开(公告)号:US20090059335A1

    公开(公告)日:2009-03-05

    申请号:US12230015

    申请日:2008-08-21

    IPC分类号: G02B26/10

    CPC分类号: G02B26/125 B41J2/471

    摘要: A holding mechanism for a long length optical element, which extends in a main scanning direction that is a movement direction of a deflected luminous flux by an optical deflector, and leads the deflected luminous flux to a scanned surface, includes; a holding member which is placed in a sub-scanning direction orthogonal to the main scanning direction and holds the long length optical element in at least two places. The holding member has, an adjusting section which deflects the long length optical element in the sub-scanning direction and controls a tilt of the long length optical element in a sub-scanning cross-section and/or occurrences of a tilt distribution in a longitudinal direction in the sub-scanning cross-section.

    摘要翻译: 包括:长光学元件的保持机构,其沿着作为光偏转器的偏转光束的移动方向的主扫描方向延伸并将被偏转的光束引导到扫描面, 保持构件,其放置在与主扫描方向正交的副扫描方向上,并且将长度光学元件保持在至少两个位置。 保持构件具有调整部,该调整部使副扫描方向上的长度光学元件偏转,并且在副扫描截面中控制长度光学元件的倾斜和/或纵向的倾斜分布的发生 方向在副扫描横截面。

    OPTICAL SCANNER AND IMAGE FORMING APPARATUS
    30.
    发明申请
    OPTICAL SCANNER AND IMAGE FORMING APPARATUS 有权
    光学扫描仪和图像形成装置

    公开(公告)号:US20080043307A1

    公开(公告)日:2008-02-21

    申请号:US11873635

    申请日:2007-10-17

    IPC分类号: G02B26/10

    CPC分类号: G02B26/125

    摘要: An optical scanner includes a light source, an optical coupler, an optical line image unit, a deflector, and an optical scanning unit. The optical scanning unit includes scanning lenses that guide the beams to a surface to be scanned. A surface on the deflector side of the scanning lens closest to a deflection reflecting surface has a negative power in a vertical scanning direction, and is a special toric surface in which a radius of curvature in a vertical scanning changes from an optical axis of the lens surface toward a periphery of the horizontal scanning direction. An F number of the beams toward the surface to be scanned of the scanning lens in the vertical scanning direction is larger in a peripheral part than in a central part in an effective scanning width.

    摘要翻译: 光学扫描器包括光源,光耦合器,光线图像单元,偏转器和光学扫描单元。 光学扫描单元包括将光束引导到待扫描表面的扫描透镜。 最靠近偏转反射面的扫描透镜的偏转器侧的表面在垂直扫描方向上具有负的功率,并且是垂直扫描中的曲率半径从透镜的光轴变化的特殊复曲面 表面朝向水平扫描方向的周边。 在扫描透镜的垂直扫描方向上要扫描的表面的光束数目F在周边部分比在有效扫描宽度中的中心部分大。