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    • 42. 发明公开
    • Image reader
    • 图像阅读器
    • EP0516092A3
    • 1993-06-30
    • EP92108964.5
    • 1992-05-27
    • Shinko Electric Co. Ltd.
    • Fukuoka, Hiroaki, c/o Ise Factory SHINKOKawano, Junji, c/o Ise Factory SHINKOMiyashita, Yoshikazu, c/o Ise Factory SHINKOSekiguchi, Hideaki, c/o Ise Factory SHINKONakagawa, Hitoshi, c/o Ise Factory SHINKO
    • H04N1/028H04N1/10
    • H04N1/02409H04N1/03H04N1/1017H04N1/1026H04N1/1043H04N1/1048H04N1/193H04N2201/02429H04N2201/02431H04N2201/02441H04N2201/02447H04N2201/0418H04N2201/0442H04N2201/04796
    • An image reader is capable of improving the quality of reading a transmission manuscript and of reducing a cost for a luminaire power source compared with the conventional image reader. The image reader comprises a casing (1) having a ceiling (2A) of a transparent manuscript plate (5), the casing (1) further housing therein a read unit (40) provided with a reflection read light source unit (55), a drive mechanism for reciprocally moving the read unit (4) from its home position (HP) and a luminaire power source unit; and a transmission read light source unit (20) provided separately from the casing (1), wherein the transmitted light which has passed the manuscript or the reflected light which has reflected from the manuscript is focused on the receiving surface of a read sensor (48) of the read unit (40) to thereby produce the image thereon, wherein the transmission read light source unit (20) can be connected to the read unit (40) mechanically and electrically by a connecting mechanism having a releasing function, and cooperate with the read unit (40), and wherein the casing (1) has recess portions (6, 6) thereon in the scanning direction of the connecting mechanism, and wherein the luminaire power source unit is provided with an inverter power source (60) which is common to the reflection read light source unit (55) and the transmission read light source unit (20) and a light source unit switching device (61) which can switch the output of the inverter power source (60) to the reflection read light source unit (55) or the transmission read light source unit (20).
    • 与常规图像读取器相比,图像读取器能够改善读取传输原稿的质量并降低照明设备电源的成本。 图像读取器包括具有透明原稿板(5)的天花板(2A)的壳体(1),壳体(1)中进一步容纳设置有反射读取光源单元(55)的读取单元(40) 用于使读取单元(4)从其原始位置(HP)往返移动的驱动机构以及照明设备电源单元; 和与壳体(1)分开设置的透射读取光源单元(20),其中已经通过原稿的透射光或从原稿反射的反射光聚焦在读取传感器(48)的接收表面上 )通过具有释放功能的连接机构将读取单元(40)机械地和电气地连接到读取单元(40),并且与读取单元(40) 所述读取单元(40),并且其中所述壳体(1)在所述连接机构的扫描方向上具有凹部(6,6),并且其中所述照明器电源单元设置有逆变器电源(60),所述逆变器电源 是反射型读取光源单元(55)和发送读取光源单元(20)以及可以将逆变器电源(60)的输出切换到反射读取光源(60)的光源单元切换装置(61) ht光源单元(55)或传输读取光源单元(20)。
    • 43. 发明公开
    • Image forming apparatus having optical scanning unit and method of adjusting lens position in optical scanning unit
    • 具有透镜位置调整的光学扫描单元和方法在光学扫描单元的图像形成装置
    • EP1809012A1
    • 2007-07-18
    • EP07000495.7
    • 2007-01-11
    • Ricoh Company, Ltd.
    • Tomita, Yasumasa Ricoh Company, Ltd.
    • H04N1/113H04N1/032
    • H04N1/1135H04N1/032H04N2201/02414H04N2201/02416H04N2201/02431
    • An optical scanning unit includes a light source, a lens, a deflector, a lens holder, a support member, a force-generating member, and a force-transmitting member. The light source emits a light beam. The lens passes through the light beam. The deflector rotatably deflects the light beam coming from the lens. The lens holder, provided between the light source and the deflector, holds the lens. The support member has a first face faced to a vertically-downward direction, and extends in a direction from the light source to the deflector. The lens holder is movably supported by the first face of the support member. The force-generating member, provided to a second face of the support member, generates a force. The second face is opposite to the first face. The force-transmitting member transmits the force generated by the force-generating member to the lens holder to move the lens holder along the first face.
    • 一种光学扫描单元包括光源,透镜,偏转器,透镜夹持器,支撑件,力产生部件和一个力传递构件。 该光源发射的光束。 透镜穿过光束。 偏转器可旋转地偏转的光束从透镜来。 透镜保持器,所述光源和所述偏转器之间,保持透镜。 支撑构件具有面对的垂直向下的方向上的第一面,并且在从光源到偏转的方向延伸。 透镜保持器被可移动地由所述支撑构件的第一面支撑。 设置于支承构件的第二面的力产生部件,基因费率的力。 所述第二面是相对于该第一面。 力传递部件发送由所述力产生部件所产生的透镜夹持器沿着第一面移动透镜保持器上的力。
    • 44. 发明公开
    • Setting focus in an imaging system
    • Einstellung der Fokussierung in einem Abbildungssystem
    • EP1045268A3
    • 2002-04-17
    • EP00303090.5
    • 2000-04-12
    • Hewlett-Packard Company, A Delaware Corporation
    • Gardner, Richard Lynn, Jr.
    • G02B7/04H04N1/03
    • H04N1/02409G02B7/04H04N1/024H04N1/03H04N2201/02414H04N2201/02429H04N2201/02431H04N2201/02447H04N2201/02449H04N2201/02458H04N2201/02474H04N2201/02483H04N2201/02485
    • In a lens focusing and holding arrangement for an imaging system (60) including a photosensor array (510), the lens (570) is in contact with a reference surface or surfaces (274, 276) formed within the imaging system housing (200) and is translatable along the surface (274, 276) in directions toward and away from the photosensor array (510) in order to adjust the focus of the imaging system (60). A lens retention clip (600) is provided to secure the lens (570) within the imaging system housing (200) and to cause translational movement of the lens (570) along the imaging system reference surface (274, 276). When focusing the imaging system (60), the lens retention clip (600) is in a first operating condition in which the lens retention clip (600) applies a relatively small force tending to hold the lens (570) in contact with the housing reference surface (274, 276). After the desired focus has been set, the lens retention clip (600) is placed in a second operating condition in which the lens retention clip (600) applies a relatively high force tending to hold the lens (570) in contact with the housing reference surface (274, 276), thus locking the lens (570) in place.
    • 成像系统(60)包括具有参考表面(274,276)的壳体(200),与参考表面(274,276)接触的透镜(570),保持在与透镜接触的壳体的构件(600),以及 位于壳体和透镜的部分(282,332,342)之间并与之接触的弹簧(720)。 在第一操作条件下,构件(600)在第一位置(350,360,370,380)处被保持到壳体,并且透镜可相对于壳体(200)平移,并且在第二操作状态下,构件(600)被保持 在第二位置(420,424)到壳体,并且透镜不能相对于壳体平移。
    • 50. 发明授权
    • Scanning optical apparatus and image forming apparatus using the same
    • 扫描光学装置和使用其的成像装置
    • US08699077B2
    • 2014-04-15
    • US12580742
    • 2009-10-16
    • Takeshi Yamawaki
    • Takeshi Yamawaki
    • G06K15/12B41J2/47
    • G02B26/124G02B26/123G02B26/125H04N1/113H04N1/129H04N2201/02431H04N2201/02433H04N2201/02435
    • A scanning optical apparatus capable of forming a preferable image, includes a light source unit, a rotational polygon mirror having a plurality of deflection surfaces for deflectively scanning a light flux emerged from the light source unit, an incident optical system for imaging the light flux as a line image on the deflection surfaces; and an imaging optical system which has one or more imaging lenses, images the light flux that has passed through the rotational polygon mirror on a surface to be scanned, and brings the deflection surfaces and the surface to be scanned into a conjugate relationship with each other in a sub scanning section, in which at least one of the imaging lenses of the imaging optical system has a lens surface formed into a non-arcked shape in the sub scanning section, and is held by a holding member so as to be movable.
    • 能够形成优选图像的扫描光学装置包括光源单元,具有多个用于偏转从光源单元出射的光束扫描的偏转面的旋转多面镜,将光束成像的入射光学系统作为 偏转面上的线图像; 以及成像光学系统,其具有一个或多个成像透镜,使要扫描的表面上已经通过旋转多面镜的光束成像,并使偏转表面和待扫描表面彼此共轭关系 在子扫描部分中,其中成像光学系统的成像透镜中的至少一个具有在副扫描部分中形成为非翘曲形状的透镜表面,并且由保持构件保持以便可移动。