OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS, APERTURE FIXING METHOD
    21.
    发明申请
    OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS, APERTURE FIXING METHOD 有权
    光学扫描装置,图像形成装置,孔固定方法

    公开(公告)号:US20150346486A1

    公开(公告)日:2015-12-03

    申请号:US14724699

    申请日:2015-05-28

    Abstract: An optical scanning device includes a cylindrical aperture, a support member, and a base portion. In the aperture, an opening portion that restricts a beam path width of a laser beam emitted from a light source is formed. The support member includes a cylinder supporting portion that pivotably supports the aperture. To the base portion, the support member is fixed by adhesion fixing. The base portion includes a pass-through portion that passes through between front and rear surfaces of the base portion and allows the support member to move in direction perpendicular to a pivoting axis of the aperture. The support member has a length such that its lower end portion projects from a rear surface of the base portion in the state where the support member has been inserted in the pass-through portion to such a position where laser beam is incident in the opening portion of the aperture.

    Abstract translation: 光学扫描装置包括圆柱形孔,支撑构件和基部。 在孔中,形成限制从光源发射的激光束的光束路径宽度的开口部。 支撑构件包括可枢转地支撑孔的气缸支撑部分。 通过粘合固定固定支撑部件到基部。 基部包括穿过基部的前表面和后表面之间的穿通部分,并且允许支撑件沿垂直于孔的枢转轴线的方向移动。 支撑构件具有这样的长度,使得其下端部在支撑构件已经插入穿通部分的状态下从基部的后表面突出到激光束入射在开口部分中的位置 的孔径。

    LIGHT DEFLECTOR, OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS
    22.
    发明申请
    LIGHT DEFLECTOR, OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS 有权
    光偏转器,光学扫描装置和图像形成装置

    公开(公告)号:US20140355091A1

    公开(公告)日:2014-12-04

    申请号:US14290001

    申请日:2014-05-29

    Inventor: Hideji Mizutani

    CPC classification number: G02B26/105 G02B26/0858 G02B26/125

    Abstract: A light deflector includes a fixing portion, a movable portion and a reinforcing member. The movable portion includes a mirror portion for deflecting light by swinging about a predetermined swing axis, a torsion bar fixedly supported on the fixing portion and having an axis serving as the swing axis, and a supporting body configured to support the mirror portion and fixed to the torsion bar. The supporting body includes a contact surface to be held in contact with the mirror portion and a non-contact surface opposite to the contact surface. The reinforcing member is provided only on the non-contact surface out of the contact surface and the non-contact surface of the supporting body and reinforces the supporting body and adjusts a center of gravity of the movable portion so that the center of gravity of the movable portion is located on the axis.

    Abstract translation: 光偏转器包括固定部分,可移动部分和加强部件。 可动部包括用于通过围绕预定的摆动轴线摆动来偏转光的反射镜部分,固定地支撑在固定部分上并具有用作摆动轴线的轴线的扭杆,以及支撑体,其构造成支撑镜部分并固定到 扭杆。 支撑体包括与镜部分保持接触的接触表面和与接触表面相对的非接触表面。 加强构件仅设置在接触表面和支撑体的非接触表面之外的非接触表面上,并且加强支撑体并且调节可动部分的重心,使得可重力 可移动部分位于轴上。

    Optical scanning device and image forming apparatus
    23.
    发明授权
    Optical scanning device and image forming apparatus 有权
    光学扫描装置和图像形成装置

    公开(公告)号:US08810623B2

    公开(公告)日:2014-08-19

    申请号:US14125603

    申请日:2013-02-21

    Inventor: Hideji Mizutani

    Abstract: An optical scanning device includes a MEMS mirror, a driving unit for oscillating the MEMS mirror using a drive voltage which varies in a basic cycle, a light detection unit for receiving laser light deflected by the MEMS mirror and outputting a detection signal, a correction value calculation unit for calculating a correction voltage value used in correcting the drive voltage, a DC voltage generation unit for generating a DC voltage having a voltage value smaller than the correction voltage value, a DC voltage amplification unit for amplifying the DC voltage generated by the DC voltage generation unit to have a voltage value equal to the correction voltage value, and a waveform shaping unit for shaping the waveform of the amplified DC voltage so that the DC voltage varies in the basic cycle and outputting the shaped DC voltage as the drive voltage to the driving unit.

    Abstract translation: 光学扫描装置包括MEMS反射镜,用于使用在基本周期中变化的驱动电压来振荡MEMS反射镜的驱动单元,用于接收由MEMS反射镜偏转的激光并输出检测信号的光检测单元,校正值 用于计算用于校正驱动电压的校正电压值的计算单元,用于产生具有小于校正电压值的电压值的DC电压的DC电压产生单元,用于放大由DC产生的DC电压的DC电压放大单元 电压产生单元具有等于校正电压值的电压值;以及波形整形单元,用于对放大的直流电压的波形进行整形,使得直流电压在基本周期中变化,并将成形的直流电压作为驱动电压输出到 驾驶单位。

    LASER SCANNING UNIT AND IMAGE FORMING APPARATUS

    公开(公告)号:US20240385551A1

    公开(公告)日:2024-11-21

    申请号:US18667237

    申请日:2024-05-17

    Abstract: A plurality of two-point mirror support portions each support two positions of a mirror specific surface at an end portion of each of a plurality of mirrors on a first side of a first direction. A plurality of one-point mirror support portions each support one position of the mirror specific surface or an end surface at an end portion of each of the plurality of mirrors on a second side of the first direction. A plurality of two-point lens support portions each support two positions of a lens specific surface of each of a plurality of lenses at an end portion on the second side of the first direction. A plurality of one-point lens support portions each support one position of the lens specific surface of each of the plurality of lenses at an end portion on the first side of the first direction.

    LASER SCANNING UNIT, IMAGE FORMING APPARATUS, LASER SCANNING METHOD, AND NON-TRANSITORY STORAGE MEDIUM

    公开(公告)号:US20220066201A1

    公开(公告)日:2022-03-03

    申请号:US17411363

    申请日:2021-08-25

    Inventor: Hideji Mizutani

    Abstract: A laser scanning unit includes a light source portion, a scanning portion, a first correction portion, and a second correction portion. The light source portion outputs a plurality of light beams. The scanning portion scans the plurality of light beams to form a plurality of electrostatic latent images, respectively corresponding to a plurality of colors including at least one reference color and at least one non-reference color, in an image forming portion. The first correction portion applies an external mechanical force to an optical element located in a path of a reference beam, corresponding to the reference color, among the plurality of light beams to correct distortion of a scan line of the reference beam. The second correction portion controls the light source portion to correct distortion of a scan line of a non-reference beam, corresponding to the non-reference color, among the plurality of light beams.

    Optical scanner and image forming apparatus including optical scanner

    公开(公告)号:US10782628B2

    公开(公告)日:2020-09-22

    申请号:US16526339

    申请日:2019-07-30

    Inventor: Hideji Mizutani

    Abstract: An optical scanner includes a multi beam light source, a scanning optical system, and a controller. The controller specifies selected beams, and changes light quantities of the respective selected beams at the same change timing based on the same profile data at respective positions in the main scanning direction which are fixedly determined as light quantity change positions. When the position of a center region in an arrangement width of the plurality of selected beams is moved in the main scanning direction in response to a selected mode of the beams, in the profile data, the controller derives a shift light quantity at a position shifted in the main scanning direction by an amount corresponding to the movement of the position of the center region, and the light quantity is modified so that the shift light quantity is used at the light quantity change position.

    Optical scanning device and image forming apparatus including the same

    公开(公告)号:US10146151B2

    公开(公告)日:2018-12-04

    申请号:US15846623

    申请日:2017-12-19

    Inventor: Hideji Mizutani

    Abstract: In an optical scanning device, light emitting start timings of light emitting parts with respect to a reference light emitting part are stored in a storage part. In a correction mode, a light emitting timing correction control part performs first control for allowing positions of beam spots of the light beams emitted from the light emitting parts to be equal to each other, second control for allowing a light emitting part LD4 to emit a light beam at a plurality of different start timings and patch images to be formed on a intermediate transfer belt 281, and third control for correcting light emitting start timings of light emitting parts LD2 to LD4 on the basis of the start timing of the light emitting part LD4 at which the patch images has the highest concentration.

    Optical scanning device and image forming apparatus using the same
    29.
    发明授权
    Optical scanning device and image forming apparatus using the same 有权
    光学扫描装置及使用其的成像装置

    公开(公告)号:US09423719B1

    公开(公告)日:2016-08-23

    申请号:US15008795

    申请日:2016-01-28

    Inventor: Hideji Mizutani

    Abstract: An optical scanning device includes a light source portion, a deflector, a first focus lens, a second focus lens, a first mirror group, and a second mirror group. The first mirror group includes: a first reflection mirror on which a first light beam having transmitted through a first focus lens is incident, the first reflection mirror reflecting the first light beam in a second direction away from a first scanned surface; and a second reflection mirror that reflects the reflected first light beam toward the first scanned surface. The second mirror group includes: a third reflection mirror on which a second light beam having transmitted through a second focus lens is incident, the third reflection mirror reflecting the second light beam in the first direction of approaching the second scanned surface; and a fourth reflection mirror that reflects the reflected second light beam toward the second scanned surface.

    Abstract translation: 光学扫描装置包括光源部分,偏转器,第一聚焦透镜,第二聚焦透镜,第一反射镜组和第二反射镜组。 第一反射镜组包括:第一反射镜,其上穿过第一聚焦透镜的第一光束入射到该第一反射镜上,第一反射镜在远离第一扫描表面的第二方向上反射第一光束; 以及将反射的第一光束朝向第一扫描面反射的第二反射镜。 第二反射镜组包括:透射通过第二聚焦透镜的第二光束入射到其上的第三反射镜,在接近第二扫描表面的第一方向上反射第二光束的第三反射镜; 以及将反射的第二光束朝向第二扫描面反射的第四反射镜。

    OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS USING THE SAME
    30.
    发明申请
    OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS USING THE SAME 有权
    光学扫描装置和使用其的图像形成装置

    公开(公告)号:US20160223935A1

    公开(公告)日:2016-08-04

    申请号:US15008795

    申请日:2016-01-28

    Inventor: Hideji Mizutani

    Abstract: An optical scanning device includes a light source portion, a deflector, a first focus lens, a second focus lens, a first mirror group, and a second mirror group. The first mirror group includes: a first reflection mirror on which a first light beam having transmitted through a first focus lens is incident, the first reflection mirror reflecting the first light beam in a second direction away from a first scanned surface; and a second reflection mirror that reflects the reflected first light beam toward the first scanned surface. The second mirror group includes: a third reflection mirror on which a second light beam having transmitted through a second focus lens is incident, the third reflection mirror reflecting the second light beam in the first direction of approaching the second scanned surface; and a fourth reflection mirror that reflects the reflected second light beam toward the second scanned surface.

    Abstract translation: 光学扫描装置包括光源部分,偏转器,第一聚焦透镜,第二聚焦透镜,第一反射镜组和第二反射镜组。 第一反射镜组包括:第一反射镜,其上穿过第一聚焦透镜的第一光束入射到该第一反射镜上,第一反射镜在远离第一扫描表面的第二方向上反射第一光束; 以及将反射的第一光束朝向第一扫描面反射的第二反射镜。 第二反射镜组包括:透射通过第二聚焦透镜的第二光束入射到其上的第三反射镜,在接近第二扫描表面的第一方向上反射第二光束的第三反射镜; 以及将反射的第二光束朝向第二扫描面反射的第四反射镜。

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