Optical scanning device, image forming apparatus
    31.
    发明授权
    Optical scanning device, image forming apparatus 有权
    光学扫描装置,成像装置

    公开(公告)号:US09298004B2

    公开(公告)日:2016-03-29

    申请号:US14724717

    申请日:2015-05-28

    Abstract: An optical scanning device includes a light source, a scanning member, a converging lens, a first aperture, a second aperture, and a support member. The first aperture is provided between the converging lens and the scanning member and includes a first opening portion configured to restrict a beam path width in a main scanning direction of the laser beams emitted from the light source. The second aperture is provided between the light source and the converging lens and includes a second opening portion and a cylindrical portion. The second opening portion is configured to restrict a beam path width in a sub scanning direction of the laser beams emitted from the light source, and is formed in the cylindrical portion. The support member includes a cylinder supporting portion that pivotably supports the cylindrical portion of the second aperture.

    Abstract translation: 光学扫描装置包括光源,扫描构件,会聚透镜,第一孔,第二孔和支撑构件。 第一开口设置在会聚透镜和扫描构件之间,并且包括被配置为限制从光源发射的激光束的主扫描方向上的光束路径宽度的第一开口部。 第二孔设在光源和会聚透镜之间,并包括第二开口部分和圆柱形部分。 第二开口部被配置为限制从光源发射的激光的副扫描方向的光束路径宽度,并形成在圆筒部。 支撑构件包括可枢转地支撑第二孔的圆柱形部分的气缸支撑部分。

    Light deflector, optical scanning device and image forming apparatus
    32.
    发明授权
    Light deflector, optical scanning device and image forming apparatus 有权
    光偏转器,光学扫描装置和成像装置

    公开(公告)号:US09279981B2

    公开(公告)日:2016-03-08

    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且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, IMAGE FORMING APPARATUS, APERTURE FIXING METHOD
    33.
    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:US20150346630A1

    公开(公告)日:2015-12-03

    申请号:US14724706

    申请日:2015-05-28

    Abstract: An optical scanning device includes a first aperture and an adjustment mechanism. The first aperture includes a first opening portion and a first cut portion. The first opening portion restricts a beam path width of a laser beam emitted from a light source. A first blocking member that blocks the laser beam is inserted in a detachable manner in the first cut portion in a direction perpendicular to a longitudinal direction of the first opening portion, at a predetermined position of the first cut portion. The adjustment mechanism is configured to adjust a fixed state of the first aperture.

    Abstract translation: 光学扫描装置包括第一孔和调节机构。 第一孔包括第一开口部和第一切口部。 第一开口部分限制从光源发射的激光束的光束路径宽度。 在第一切割部分的预定位置处,阻挡激光束的第一阻挡构件在与第一开口部分的纵向方向垂直的方向上以可拆卸的方式插入到第一切割部分中。 调整机构配置成调整第一孔的固定状态。

    LIGHT DEFLECTOR, LIGHT DEFLECTOR MANUFACTURING METHOD AND OPTICAL SCANNING DEVICE
    34.
    发明申请
    LIGHT DEFLECTOR, LIGHT DEFLECTOR MANUFACTURING METHOD AND OPTICAL SCANNING DEVICE 有权
    光偏转器,光偏转器制造方法和光学扫描装置

    公开(公告)号:US20140355090A1

    公开(公告)日:2014-12-04

    申请号:US14289807

    申请日:2014-05-29

    Inventor: Hideji Mizutani

    Abstract: A light deflector includes a fixing portion and a movable portion. 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 hole portion through which the axis passes. A mass body for adjusting a resonant frequency of the movable portion is arranged in the hole portion.

    Abstract translation: 光偏转器包括固定部分和可移动部分。 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且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。 支撑体包括轴部穿过的孔部。 用于调节可动部分的共振频率的质量体布置在孔部分中。

    OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS
    35.
    发明申请
    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:US20140126923A1

    公开(公告)日:2014-05-08

    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。

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