公开(公告)号：US08373915B2

公开(公告)日：2013-02-12

申请号：US13165554

申请日：2011-06-21

申请人： Yoshihiro Inagaki

发明人： Yoshihiro Inagaki

IPC分类号： G02B26/08

CPC分类号： G02B26/124 ,  G02B27/0031

摘要： An optical scanning device for scanning a photoreceptor surface with a beam, said optical scanning device having: a light source for emitting the beam; an optical system for causing the beam emitted from the light source to converge; and a deflector that includes a polygon mirror with a plurality of reflecting surfaces and that deflects the beam that has passed through the optical system by rotations of the polygon mirror. Between the deflector and the photoreceptor surface, no optical system for causing the beam to converge or diverge is disposed. The optical system for causing the beam emitted from the light source to converge generates spherical aberration depending on which part of the optical system in a main-scanning direction the beam passes through. The beam enters into three or more adjacent reflecting surfaces of the polygon mirror at a time.

摘要翻译： 一种用于用光束扫描感光体表面的光学扫描装置，所述光学扫描装置具有：用于发射光束的光源; 用于使从所述光源发射的光束会聚的光学系统; 以及偏转器，其包括具有多个反射表面的多面镜，并且通过所述多面镜的旋转使已经穿过所述光学系统的光束偏转。 在偏转器和感光体表面之间，不设置用于使光束会聚或发散的光学系统。 用于使从光源发射的光束会聚的光学系统根据光束通过的主扫描方向上的哪个部分产生球面像差。 光束一次进入多面镜的三个或更多个相邻的反射表面。

公开(公告)号：US20100196029A1

公开(公告)日：2010-08-05

申请号：US12699952

申请日：2010-02-04

申请人： Yoshihiro INAGAKI

发明人： Yoshihiro INAGAKI

IPC分类号： G03G15/043

CPC分类号： G03G15/0435 ,  G03G15/04054

摘要： An electrophotographic image forming apparatus having an LED array with a plurality of light emitting elements aligned in a main-scanning direction and a convergent lens array for imaging light emitted from the light emitting elements on a photosensitive member. In order to correct density unevenness caused by positioning errors of the lens array, the light quantity emitted from each of the light emitting elements is adjusted such that the total difference from a target value will be closer to zero.

摘要翻译： 一种电子照相图像形成装置，具有具有沿主扫描方向排列的多个发光元件的LED阵列和用于对从感光构件上的发光元件发射的光成像的会聚透镜阵列。 为了校正由透镜阵列的定位误差引起的浓度不均匀性，调整从每个发光元件发射的光量，使得与目标值的总差值将更接近于零。

公开(公告)号：US07477437B1

公开(公告)日：2009-01-13

申请号：US11964209

申请日：2007-12-26

申请人： Yoshihiro Inagaki ,  Makoto Ooki

发明人： Yoshihiro Inagaki ,  Makoto Ooki

IPC分类号： G02B26/08

CPC分类号： G02B26/125

摘要： In a main-scanning direction, light incident on a resonance mirror is convergent light and a first lens of a second optical system has a negative refractive power. Consequently, even with a small angle of deflection, the distance from the resonance mirror to a photoconductor required for obtaining a desired scanning width in the main-scanning direction can be reduced. Moreover, in a sub-scanning direction, light incident on the resonance mirror is parallel light, and the first lens of the second optical system has a negative refractive power and a second lens thereof has a positive refractive power. In addition, the first lens has both surfaces formed with a free curved surface and the second lens thereof also has a free curved surface. This permits keeping the sub-scanning magnification uniform, thus avoiding, even in high-speed drawing with a plurality of beams, image quality deterioration due a change in an interval in the sub-scanning direction between the plurality of beams.

摘要翻译： 在主扫描方向上，入射在共振反射镜上的光是会聚光，第二光学系统的第一透镜具有负折光力。 因此，即使具有小的偏转角，也可以减少从主扫描方向获得期望的扫描宽度所需的从共振镜到光电导体的距离。 此外，在副扫描方向上，入射到共振反射镜上的光是平行光，第二光学系统的第一透镜具有负折光力，并且其第二透镜具有正折射光焦度。 此外，第一透镜具有形成有自由曲面的两个表面，并且其第二透镜也具有自由曲面。 这允许保持副扫描放大率均匀，从而即使在多个光束的高速绘制中也避免了由于多个光束之间的副扫描方向上的间隔的变化而导致的图像质量恶化。

公开(公告)号：US07345801B2

公开(公告)日：2008-03-18

申请号：US11019733

申请日：2004-12-23

申请人： Yoshihiro Inagaki

发明人： Yoshihiro Inagaki

IPC分类号： G02B26/08

CPC分类号： G02B13/0005 ,  G02B26/105

摘要： Laser light, emitted from a laser light source, is formed into a converged light ray by a condensing lens, and deflected by a resonance mirror. The laser light is converged on a photosensitive member through a scanning lens including one negative lens, and has at least one nonaxisymmetric face that provides the same power in the vicinity of the light axis in both of a main scanning direction and a sub-scanning direction. Even when a deflection angle in the resonance mirror is small, it is possible to shorten a distance from the resonance mirror to the photosensitive member, which is required for providing a desired scanning width and to effectively carry out image-face curvature correction and groove-shaped aberration correction within a sub-scanning cross section and to reduce the size of a unit including the resonance mirror and the scanning lens.

摘要翻译： 从激光源射出的激光由聚光透镜形成会聚光线，并被谐振镜偏转。 激光通过包括一个负透镜的扫描透镜会聚在感光构件上，并且具有在主扫描方向和副扫描方向两者中在光轴附近提供相同功率的至少一个非轴对称面 。 即使在谐振反射镜中的偏转角小的情况下，也可以缩短从谐振反射镜到感光体的距离，这是为了提供期望的扫描宽度所需要的，并且能够有效地进行图像面曲率校正和凹槽 - 并且减小包括谐振反射镜和扫描透镜的单元的尺寸。

公开(公告)号：US06856439B2

公开(公告)日：2005-02-15

申请号：US10636762

申请日：2003-08-08

申请人： Yoshihiro Inagaki

发明人： Yoshihiro Inagaki

IPC分类号： B41J2/44 ,  G02B13/00 ,  G02B13/18 ,  G02B26/10 ,  G02B26/12 ,  H04N1/113 ,  G02B26/08

CPC分类号： G02B26/123

摘要： A tandem-type laser scanning apparatus has a deflector for deflecting a first laser beam and a second laser beam, which fulfill prescribed conditions, in the main scanning direction by reflecting the laser beams simultaneously with a single surface and a scanning optical system for directing the deflected first and second laser beams to separate scanned surfaces corresponding thereto in such a way that the scanned surfaces are individually scanned with the laser beams focused thereon. The scanning optical system includes a common lens that has no curvature in the sub scanning direction and that transmits both the first and second laser beams, a first scanning lens that transmits, of the first and second laser beams transmitted through the common lens, the first laser beam but not the second laser beam, and a second scanning lens that transmits, of the first and second laser beams transmitted through the common lens, the second laser beam but not the first laser beam. The first and second scanning lenses each have a surface having a different twist from each other.

摘要翻译： 串联式激光扫描装置具有偏转器，用于通过与单个表面同时反射激光束和用于引导扫描光学系统的偏转来偏转满足规定条件的主扫描方向上的第一激光束和第二激光束 偏转的第一和第二激光束分离与其对应的扫描表面，使得扫描的表面被聚焦在其上的激光束单独地扫描。 扫描光学系统包括在副扫描方向上没有曲率并且透射第一和第二激光束的公共透镜，透射通过共透镜的第一和第二激光束的第一扫描透镜，第一透镜 激光束而不是第二激光束;以及第二扫描透镜，其透射通过共透镜的第一和第二激光束而不是第一激光束。 第一和第二扫描透镜各自具有彼此具有不同扭曲的表面。

公开(公告)号：US06822671B2

公开(公告)日：2004-11-23

申请号：US10097271

申请日：2002-03-15

申请人： Yoshihiro Inagaki

发明人： Yoshihiro Inagaki

IPC分类号： B41J2700

CPC分类号： G02B27/4227 ,  G02B26/124 ,  G02B27/0031 ,  G02B27/0037 ,  G02B27/4277

摘要： A laser beam emitted from a laser light source is shaped into a substantially parallel beam in the main scanning direction, and is condensed in the vicinity of a deflecting surface of a deflector in the sub scanning direction by a light source optical system. The laser beam deflected by the deflector is projected onto a photosensitive body of an image forming apparatus by a scanning optical system. The light source optical system is constituted by one optical element made of resin. The optical element has a reflecting surface having no symmetry axis of rotation, and two transmitting surfaces. The laser beam incident on the incident side transmitting surface is reflected at the reflecting surface, and exits from the exit side transmitting surface. As described above, by providing the reflecting surface with a beam shaping function, the performance change caused when there is a temperature change can be reduced more than when a refracting surface is provided with the beam shaping function. The transmitting surfaces may be provided with a diffracting function.

摘要翻译： 从激光光源射出的激光束在主扫描方向成形为大致平行的光束，并且通过光源光学系统在副扫描方向上在偏转器的偏转面附近聚光。 由偏转器偏转的激光束通过扫描光学系统投影到图像形成装置的感光体上。 光源光学系统由一个由树脂制成的光学元件构成。 光学元件具有不具有对称旋转轴的反射面和两个透光面。 入射到入射侧透射面的激光束在反射面反射，从出射侧透射面离开。 如上所述，通过为反射面提供光束整形功能，当具有光束整形功能的折射表面时，可以降低当存在温度变化时引起的性能变化。 透射面可以具有衍射功能。

公开(公告)号：US06665097B1

公开(公告)日：2003-12-16

申请号：US09537674

申请日：2000-03-29

申请人： Yoshihiro Inagaki

发明人： Yoshihiro Inagaki

IPC分类号： H04N140

CPC分类号： H04N1/00013 ,  G02B7/028 ,  G02B27/40 ,  H04N1/00002 ,  H04N1/00018 ,  H04N1/00031 ,  H04N1/00042 ,  H04N1/00045 ,  H04N1/00047 ,  H04N1/0005 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/00082 ,  H04N1/00795 ,  H04N1/00814 ,  H04N1/00819 ,  H04N1/1013

摘要： When sequentially reading a plurality of documents in an image reading apparatus using, for example, an automatic document feeder, the temperature inside the apparatus rises and the refractive index of a lens or the like in an optical system changes, causing focus and magnification errors. To address this, focus and magnification adjustments are made by reading a chart when a document reading operation is not being performed. On the other hand, during a document reading operation, the temperature inside the apparatus, especially, the temperature of the lens, is measured, and the focus and magnification are adjusted based on the measured temperature.

摘要翻译： 当使用例如自动文件馈送器在图像读取装置中顺序读取多个文档时，装置内部的温度升高，并且光学系统中的透镜等的折射率改变，导致焦点和放大误差。 为了解决这个问题，当没有执行文件读取操作时，通过读取图表来进行对焦和放大倍数调整。 另一方面，在文件读取操作期间，测量装置内的温度，特别是透镜的温度，并且基于测量的温度来调整聚焦和放大倍数。

公开(公告)号：US06477181B1

公开(公告)日：2002-11-05

申请号：US09194520

申请日：1998-11-05

申请人： Junichi Fujimori ,  Yoshihiro Inagaki ,  Hirotaka Kuribayashi ,  Yasushi Ohtani ,  Tatsutoshi Abe

发明人： Junichi Fujimori ,  Yoshihiro Inagaki ,  Hirotaka Kuribayashi ,  Yasushi Ohtani ,  Tatsutoshi Abe

IPC分类号： H04J300

CPC分类号： H04L12/40058 ,  H04J3/0632 ,  H04L12/40091 ,  H04L12/40117 ,  H04L12/64 ,  H04L29/06 ,  H04N21/23406 ,  H04N21/242 ,  H04N21/4143 ,  H04N21/4305 ,  H04N21/4307 ,  H04N21/43632 ,  H04N21/44004

摘要： In transmitting a plurality of data arranged in a time series of a first period (T), there is formed, every predetermined second period (SF) longer than the first period (T), a packet containing a plural number (x) of data supplied within a given cycle of the second period (SF). At that time, one data is specified from among every group consisting of a fixed number (M), not smaller than two, of the data, and time information indicative of a time position of the specified data is attached to the packet which the data belong to. A receiving-end unit reproduces the data, by reproducing the respective time positions, i.e., the first period (T), of the individual data on the basis of the time information contained in the received packet.

摘要翻译： 在发送以第一周期（T）的时间序列排列的多个数据的情况下，形成比第一周期（T）长的规定的第二周期（SF），包含多个（x）数据的分组 在第二周期（SF）的给定周期内提供。 此时，从由数据的固定数（M）不小于2的每个组中指定一个数据，并且指示指定数据的时间位置的时间信息附加到数据的数据包 属于。 接收端单元通过基于包含在接收到的分组中的时间信息再现各个数据的各个时间位置，即第一周期（T））再现数据。

公开(公告)号：US6148051A

公开(公告)日：2000-11-14

申请号：US372426

申请日：1999-08-11

申请人： Junichi Fujimori ,  Yoshihiro Inagaki

发明人： Junichi Fujimori ,  Yoshihiro Inagaki

IPC分类号： G10H1/00 ,  H04L7/00 ,  H04L12/70 ,  H04N21/43 ,  H04N21/4363 ,  H04N21/438

CPC分类号： H04N21/438 ,  H04N21/4305 ,  H04N21/43632 ,  H04N21/4381

摘要： The present invention includes an interface apparatus in a node of a communication network for synchronizing internal time data of the node to reference time data of the communication network during transfer of a data train having a time-sequential arrangement through the communication network. The interface includes a receiving device that receives the reference time data transmitted from another node such that the reference time data has a first time resolution to maintain the time-sequential arrangement of the data train. An internal oscillating circuit generates a clock signal to provide a second time resolution, and a counting device counts the clock signal having the second time resolution to successively produce count data having a higher order bit part, which corresponds to the reference time data, and a lower order bit part. Also provided is a synchronizing device that operates to reset the counting device to adjust all bits of the count data in sync with the reference time data, and retrieves the higher order bit part of the adjusted count data to provide the internal time data.

摘要翻译： 本发明包括在通信网络的节点中的接口装置，用于在通过通信网络具有时间排列的数据序列的传输期间，将节点的内部时间数据与通信网络的参考时间数据进行同步。 接口包括接收装置，其接收从另一节点发送的参考时间数据，使得参考时间数据具有第一时间分辨率，以维持数据序列的时间顺序排列。 内部振荡电路产生时钟信号以提供第二时间分辨率，并且计数装置对具有第二时间分辨率的时钟信号进行计数，以连续产生具有对应于参考时间数据的较高阶位部分的计数数据，以及 低阶位部分。 还提供了一种同步装置，其操作以复位计数装置以与参考时间数据同步地调整计数数据的所有比特，并且检索经调整的计数数据的较高阶比特部分以提供内部时间数据。

公开(公告)号：US5923902A

公开(公告)日：1999-07-13

申请号：US800969

申请日：1997-02-19

申请人： Yoshihiro Inagaki

发明人： Yoshihiro Inagaki

IPC分类号： G06F15/16 ,  G06F15/163 ,  H04J3/06 ,  H04L29/06 ,  G06F13/00

CPC分类号： H04L29/06 ,  H04J3/0664 ,  H04J3/067 ,  H04J3/0682 ,  H04L69/28

摘要： A network system has a plurality of nodes interconnected to each other for transferring a data packet from a transmitting node to receiving nodes so as to concurrently drive the same. In the transmitting node, an estimating device estimates a time lag which exists between the transmitting node and each of the receiving nodes and which varies among the receiving nodes. A determining device detects a maximum one of the estimated time lags so as to set a reference time by which all of the receiving nodes can be synchronized with each other. A transmitting device transmits a data packet to the receiving nodes together with the reference time stamped on the data packet. In each of the receiving nodes, a receiving device receives the data packet together with the stamped reference time. An adjustment device temporarily retains the received data packet for adjusting the difference in the time lags among the receiving nodes according to the reference time so that all of the receiving nodes can be driven concurrently with each other.

摘要翻译： 网络系统具有彼此互连的多个节点，用于将数据分组从发送节点传送到接收节点，以便同时驱动它们。 在发送节点中，估计装置估计发送节点和每个接收节点之间存在的时间差，并且在接收节点之间变化。 确定装置检测所估计的时间滞后中的最大值，以便设置所有接收节点可以彼此同步的参考时间。 发送设备将数据分组与标记在数据分组上的参考时间一起发送到接收节点。 在每个接收节点中，接收设备与加盖的参考时间一起接收数据分组。 调整装置根据参考时间临时保留接收到的数据分组，用于调整接收节点之间的时间差的差异，使得所有接收节点可以彼此并行驱动。