Scanning lens, optical scanning device and image forming apparatus using same
    11.
    发明授权
    Scanning lens, optical scanning device and image forming apparatus using same 有权
    扫描透镜,光学扫描装置和使用其的图像形成装置

    公开(公告)号:US08730512B2

    公开(公告)日:2014-05-20

    申请号:US13772381

    申请日:2013-02-21

    CPC classification number: G02B26/10 G02B26/124 G02B26/125 G02B27/4227

    Abstract: An optical scanning device includes a light source which emits a light beam, a deflector, an incident optical system and one scanning lens. The deflector reflects and deflects/scans the light beam emitted from the light source. The scanning lens includes a first face facing the deflector and a second face on an opposite side to the first face, and performs imaging of the deflected/scanned light beam on a surface to be scanned. In a main scanning cross section, when an angle relative to an optical axis of an incident light beam which enters the scanning lens from the first face is θin, and an angle relative to an optical axis of an outgoing light beam which is output from the second face toward the surface to be scanned is θout, in an entire scanning region, a condition of 0.9

    Abstract translation: 光学扫描装置包括发射光束的光源,偏转器,入射光学系统和一个扫描透镜。 偏转器反射和偏转/扫描从光源发射的光束。 扫描透镜包括面向偏转器的第一面和与第一面相反侧的第二面,并且在被扫描的表面上进行偏转/扫描光束的成像。 在主扫描横截面中,当相对于从第一面进入扫描透镜的入射光束的光轴的角度为相对于输出的出射光束的光轴的角度 从第二面朝向要扫描的表面,在整个扫描区域中,满足0.9 <&amp;

    Collimator lens, optical scanning device and image forming apparatus using same
    12.
    发明授权
    Collimator lens, optical scanning device and image forming apparatus using same 有权
    准直透镜,光学扫描装置和使用其的成像装置

    公开(公告)号:US08724187B2

    公开(公告)日:2014-05-13

    申请号:US13772371

    申请日:2013-02-21

    CPC classification number: G02B27/30 G02B27/4283 H04N1/04

    Abstract: In a collimator lens, in a case where divergent light emitted from a position P1 at a distance S1 from a second face enters the second face and imaging is performed at a position P2 at a distance S2 from a first face, in a temperature range of 0° C. to 60° C. and in a range of the emission wavelength of the light source which changes within the temperature range, and when a minimum value of a wavefront aberration of an image, which is generated at the position P2 by the divergent light emitted from the position P1 in a range of 0

    Abstract translation: 在准直透镜中,在距离第二面的距离S1的位置P1发射的发散光进入第二面的情况下,在距离第一面的距离S2的位置P2进行成像,在 在温度范围内变化的光源的发射波长的范围内,并且当在位置P2处产生的图像的波前像差的最小值为0°至60°C时, 在0

    Inkjet recording apparatus
    13.
    发明授权

    公开(公告)号:US11964489B2

    公开(公告)日:2024-04-23

    申请号:US17700047

    申请日:2022-03-21

    CPC classification number: B41J2/16523 B41J2/16532 B41J11/007 B41J11/0085

    Abstract: An inkjet recording apparatus includes a recording head including a plurality of nozzles for ejecting ink, a conveyor belt that has a plurality of apertures and conveys recording media one by one, a control unit, an ink receiver, and a pipe-shaped ink discharge flow path. The control unit controls drive of the recording head and the conveyor belt to perform flushing, in which the ink is ejected from the nozzle of the recording head to pass through one of the apertures, at a timing different from a timing contributing to image recording. The ink receiver is disposed to face the recording head sandwiching the conveyor belt therebetween, to receive the ink after passing through the aperture when the flushing is performed. The ink discharge flow path is connected to the ink receiver. When the flushing is performed, a predetermined amount of liquid is stored in the ink receiver.

    SCANNING LENS, OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS USING SAME
    15.
    发明申请
    SCANNING LENS, OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS USING SAME 有权
    扫描镜头,光学扫描装置和使用它的图像形成装置

    公开(公告)号:US20130222863A1

    公开(公告)日:2013-08-29

    申请号:US13772381

    申请日:2013-02-21

    CPC classification number: G02B26/10 G02B26/124 G02B26/125 G02B27/4227

    Abstract: An optical scanning device includes a light source which emits a light beam, a deflector, an incident optical system and one scanning lens. The deflector reflects and deflects/scans the light beam emitted from the light source. The scanning lens includes a first face facing the deflector and a second face on an opposite side to the first face, and performs imaging of the deflected/scanned light beam on a surface to be scanned. In a main scanning cross section, when an angle relative to an optical axis of an incident light beam which enters the scanning lens from the first face is θin, and an angle relative to an optical axis of an outgoing light beam which is output from the second face toward the surface to be scanned is θout, in an entire scanning region, a condition of 0.9

    Abstract translation: 光学扫描装置包括发射光束的光源,偏转器,入射光学系统和一个扫描透镜。 偏转器反射和偏转/扫描从光源发射的光束。 扫描透镜包括面向偏转器的第一面和与第一面相反侧的第二面,并且在被扫描的表面上进行偏转/扫描光束的成像。 在主扫描横截面中,当从第一面进入扫描透镜的入射光束的相对角度相对于从第一面输出的出射光束的光轴的角度 要扫描的表面的第二面是θout,在整个扫描区域中满足0.9的条件。

    Optical scanning device and image forming apparatus provided with same

    公开(公告)号:US10268136B2

    公开(公告)日:2019-04-23

    申请号:US16069208

    申请日:2017-03-14

    Inventor: Issei Nakano

    Abstract: In a first scanning lens, a first lens section and a second lens section are vertically overlapped in such a manner as to separate lens centers thereof by a first distance. In a second scanning lens, a third lens section and a fourth lens section are vertically overlapped in such a manner as to separate lens centers thereof by a second distance equal to the first distance. A vertical positional relationship of the first lens section with the second lens section is the same as a vertical positional relationship of the third lens section with the fourth lens section. Further, a separating direction of a lens center of the first lens section from that of the second lens section is opposite to a separating direction of a lens center of the third lens section from that of the fourth lens section.

    OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS PROVIDED WITH SAME

    公开(公告)号:US20190004448A1

    公开(公告)日:2019-01-03

    申请号:US16069208

    申请日:2017-03-14

    Inventor: Issei Nakano

    Abstract: In a first scanning lens, a first lens section and a second lens section are vertically overlapped in such a manner as to separate lens centers thereof by a first distance. In a second scanning lens, a third lens section and a fourth lens section are vertically overlapped in such a manner as to separate lens centers thereof by a second distance equal to the first distance. A vertical positional relationship of the first lens section with the second lens section is the same as a vertical positional relationship of the third lens section with the fourth lens section. Further, a separating direction of a lens center of the first lens section from that of the second lens section is opposite to a separating direction of a lens center of the third lens section from that of the fourth lens section.

    Optical scanning device and image forming apparatus using the same
    19.
    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:US09432548B1

    公开(公告)日:2016-08-30

    申请号:US15019883

    申请日:2016-02-09

    Inventor: Issei Nakano

    Abstract: An optical scanning device includes a light source unit, a deflector, and a scanning lens. The deflector reflects first and second light beams emitted from the light source such that the beams scan a scanned surface in main scanning direction. The scanning lens is disposed between the deflector and the scanned surface, includes incident and emission surfaces, and focuses the first and second light beams on the scanned surface. At least one of incident and emission surfaces is an optical refractive surface in which first and second refractive surfaces through which the first and second light beams pass respectively are arranged in alignment in the sub scanning direction. An interval between a first generatrix of the first refractive surface and a second generatrix of the second refractive surface in the sub scanning direction increases from a center portion toward end portions of the scanning lens in the main scanning direction.

    Abstract translation: 光学扫描装置包括光源单元,偏转器和扫描透镜。 偏转器反射从光源发射的第一和第二光束,使得光束在主扫描方向上扫描扫描的表面。 扫描透镜设置在偏转器和扫描表面之间,包括入射和发射表面,并将第一和第二光束聚焦在被扫描的表面上。 入射面和射出面中的至少一个是光折射面,其中第一和第二光束通过的第一和第二折射面分别沿副扫描方向排列。 副扫描方向上的第一折射面的第一母线与第二折射面的第二母线之间的间隔从主扫描方向的中心部朝向扫描透镜的端部增大。

    OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS USING THE SAME
    20.
    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:US20160241735A1

    公开(公告)日:2016-08-18

    申请号:US15019883

    申请日:2016-02-09

    Inventor: Issei Nakano

    Abstract: An optical scanning device includes a light source unit, a deflector, and a scanning lens. The deflector reflects first and second light beams emitted from the light source such that the beams scan a scanned surface in main scanning direction. The scanning lens is disposed between the deflector and the scanned surface, includes incident and emission surfaces, and focuses the first and second light beams on the scanned surface. At least one of incident and emission surfaces is an optical refractive surface in which first and second refractive surfaces through which the first and second light beams pass respectively are arranged in alignment in the sub scanning direction. An interval between a first generatrix of the first refractive surface and a second generatrix of the second refractive surface in the sub scanning direction increases from a center portion toward end portions of the scanning lens in the main scanning direction.

    Abstract translation: 光学扫描装置包括光源单元,偏转器和扫描透镜。 偏转器反射从光源发射的第一和第二光束,使得光束在主扫描方向上扫描扫描的表面。 扫描透镜设置在偏转器和扫描表面之间,包括入射和发射表面,并将第一和第二光束聚焦在被扫描的表面上。 入射面和射出面中的至少一个是光折射面,其中第一和第二光束通过的第一和第二折射面分别沿副扫描方向排列。 副扫描方向上的第一折射面的第一母线与第二折射面的第二母线之间的间隔从主扫描方向的中心部朝向扫描透镜的端部增大。

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