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    • 57. 发明申请
    • SCANNING OPTICAL APPARATUS AND IMAGE FORMING APPARATUS USING SAME
    • 使用相同的扫描光学装置和图像形成装置
    • US20110025814A1
    • 2011-02-03
    • US12845442
    • 2010-07-28
    • Manabu Kato
    • Manabu Kato
    • B41J15/14G02B26/08
    • B41J2/473G02B26/123G03G15/0435G03G15/326
    • An scanning optical apparatus of present invention converts plural light beams emitted from corresponding light source units by a light beam conversion unit, deflectively scans by a deflection unit, focuses by an imaging optical unit onto corresponding scanned surfaces. At least two of light source units are arranged along a direction perpendicular to the direction in which the light beams are emitted. The light beam conversion unit includes plural light beam conversion elements that reflect the light beams emitted in the same direction from the light source units to deflect the light beams in the same direction. Each of the light beam conversion elements has at least one reflecting surface having a power and at least one diffracting surface having a power, and has different powers with respect to the main scanning direction and with respect to the sub scanning direction.
    • 本发明的扫描光学装置通过光束转换单元转换由相应的光源单元发射的多个光束,由偏转单元偏转扫描,由成像光学单元聚焦到相应的扫描表面上。 至少两个光源单元沿着垂直于光束发射方向的方向排列。 光束转换单元包括多个光束转换元件,其反射从光源单元沿相同方向发射的光束,以使光束沿相同方向偏转。 每个光束转换元件具有至少一个具有功率的反射表面和至少一个具有功率的衍射表面,并且具有相对于主扫描方向和相对于副扫描方向的不同的功率。
    • 59. 发明授权
    • Optical unit and image forming apparatus
    • 光学单元和成像设备
    • US07830545B2
    • 2010-11-09
    • US11446025
    • 2006-06-02
    • Toshiharu Mamiya
    • Toshiharu Mamiya
    • G06K15/12G06F3/12B41J15/14B41J2/435
    • H04N1/1135B41J2/471G02B26/12G03G15/04036G03G15/0435G03G2215/0404H04N1/12H04N2201/0082H04N2201/0446
    • At least one exemplary embodiment is directed to an optical unit adapted to irradiate image exposure light to an image carrier comprises a frame containing optical parts arranged therein and having an opening, and a cover adapted to cover the opening. The cover can be fixed by fixing members to the frame at three points in a first plane including the opening. The cover can further be fixed by fixing members to the frame at a second plane positioned on the frame and being adjacent to the first plane and at a third plane positioned on the frame and being not parallel to the second plane. Thus, an optical unit can be obtained which has high rigidity while, when the cover is attached to the opening, maintaining satisfactory flatness of the cover in a plane including the opening.
    • 至少一个示例性实施例涉及适于将图像曝光光照射到图像载体的光学单元,包括:框架,其包含布置在其中并具有开口的光学部件,以及适于覆盖开口的盖。 可以在包括开口的第一平面中的三个位置处将固定构件固定到框架上。 盖子可以通过固定构件在位于框架上的第二平面处固定到框架上并且邻近第一平面和位于框架上并且不平行于第二平面的第三平面固定。 因此,可以获得具有高刚性的光学单元,而当盖安装到开口时,保持盖在包括开口的平面中的令人满意的平坦度。
    • 60. 发明授权
    • Optical scanning device and image forming apparatus using the same
    • 光学扫描装置及使用其的成像装置
    • US07825947B2
    • 2010-11-02
    • US12251158
    • 2008-10-14
    • Kazumi Kimura
    • Kazumi Kimura
    • B41J15/14B41J27/00
    • G02B26/123G02B26/125
    • An optical scanning device in which an optical deflector scanningly deflects a light beam emitted from a light source and in which an imaging optical system images the scanningly deflected light beam onto a scan surface. The imaging optical system includes a transmission type imaging optical element and a reflection type optical element, which are disposed in this order from the optical deflector. The reflection type optical element reflects the scanningly deflected light beam in an off-normal light path towards the scan surface. To avoid interference with the off-normal path, a contour central line of the transmission type imaging optical element is positioned at one side of a principal ray of the light beam incident on the transmission type imaging optical element, which side is remote from the off-normal light path reflected by the reflection type optical element.
    • 一种光学扫描装置,其中光偏转器扫描地偏转从光源发射的光束,并且其中成像光学系统将扫描偏转的光束成像到扫描表面上。 成像光学系统包括从光偏转器依次设置的透射型成像光学元件和反射型光学元件。 反射型光学元件将扫描偏转的光束反射到偏离正常的光路中朝向扫描表面。 为了避免与非正常路径的干扰,透射型成像光学元件的轮廓中心线位于入射到透射型成像光学元件的光束的主光线的一侧,该侧偏离关闭 - 由反射型光学元件反射的正常光路。