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    • 1. 发明申请
    • ILLUMINATION DEVICE
    • 照明装置
    • US20130314756A1
    • 2013-11-28
    • US13982636
    • 2011-12-28
    • Fumimasa AmemiyaToru OchiaiFumihide SakamotoJunya OzawaSatoshi TanakaYuichi KagamiHiroyuki HirokawaShinnosuke EnomotoKoji Ogino
    • Fumimasa AmemiyaToru OchiaiFumihide SakamotoJunya OzawaSatoshi TanakaYuichi KagamiHiroyuki HirokawaShinnosuke EnomotoKoji Ogino
    • F21V13/04
    • F21V13/04G02B6/0045H04N1/02835H04N1/0289H04N1/1017
    • To provide an illumination device in which there is no variation in light intensity distribution of the illumination device, and in which illumination spots, particularly light intensity spots, are not prone to occur in a read image in an image reading device, by maintaining a constant gap between a light source and an end face of a light guide. The illumination device includes: a light guide having an end face for taking in light, a diffuse reflecting surface for diffusely reflecting the light taken in from the end face, and a light exit surface for emitting the light that is diffusely reflected at the diffuse reflecting surface towards an irradiation surface. The illumination device further include a reflector having a diffuse reflecting surface that reflects light from the light source toward the one end face of the light guide. The light guide has, at the one end, a flange portion that abuts the reflector, the light source is mounted to a circuit board, and the reflector is held between the flange portion of the light guide and circuit board so as to maintain a predetermined gap between the light source and light guide.
    • 为了提供一种照明装置,其中照明装置的光强度分布没有变化,并且其中在图像读取装置中的读取图像中不容易发生照明点,特别是光强度点,通过保持恒定 光源与光导的端面之间的间隙。 照明装置包括:具有用于吸收光的端面的光导,用于漫反射从端面吸收的光的漫反射面,以及用于发射在漫反射处漫反射的光的光出射面 表面朝向照射表面。 照明装置还包括具有将来自光源的光朝向光导的一个端面反射的漫反射面的反射体。 导光体的一端具有与反射体抵接的凸缘部,光源安装在电路基板上,反射体保持在导光板的凸缘部与电路基板之间, 光源与光导之间的间隙。
    • 5. 发明授权
    • Image reading apparatus and image reading method
    • 图像读取装置和图像读取方法
    • US08422087B2
    • 2013-04-16
    • US12585762
    • 2009-09-24
    • Koji Ogino
    • Koji Ogino
    • H04N1/04
    • H04N1/1013H04N1/1056H04N1/193H04N2201/02439H04N2201/0458H04N2201/04755H04N2201/04767H04N2201/04794
    • An image reading apparatus is provided which enables image data of high S/N ratio with constant resolution to be acquired without fluctuations in resolution over the entire area of an original document, while actualizing the compact image reading apparatus by minimizing the spaces on the opposite end sides in the sub-scanning direction of the platen, has a line light source for applying light to the original document, a carriage installed with the line light source to travel in a sub-scanning direction of the document, a stepping motor for driving the carriage, a line sensor for receiving the reflected light of the document guided by the optical means to convert into image data, and control means for performing traveling control of the carriage, blinking control of the line light source, and control for capturing the image data from the line sensor, and captures the image data from the line sensor while varying a period of a motor clock signal to drive the stepping motor for a duration of acceleration control for starting traveling of the carriage to reach constant-velocity traveling after starting reading of the document.
    • 提供了一种图像读取装置,其能够获得具有恒定分辨率的高S / N比的图像数据,而不会在原始文档的整个区域上的分辨率波动,同时通过使相对端的空间最小化来实现小型图像读取装置 在台板的副扫描方向上的一侧具有用于向原稿施加光的线光源,安装有线光源的托架沿着文档的副扫描方向行进;步进马达,用于驱动 托架,用于接收由光学装置引导的文件的反射光转换为图像数据的线传感器,以及用于执行滑架的行进控制,线光源的闪烁控制和捕获图像数据的控制的控制装置 并且从线传感器捕获图像数据,同时改变电机时钟信号的周期以驱动步进电机持续一段时间 的加速度控制,用于开始车辆行驶以在开始读取文档之后达到恒定速度行驶。
    • 7. 发明申请
    • Image reading apparatus and image reading method
    • 图像读取装置和图像读取方法
    • US20100085615A1
    • 2010-04-08
    • US12585762
    • 2009-09-24
    • Koji Ogino
    • Koji Ogino
    • H04N1/04
    • H04N1/1013H04N1/1056H04N1/193H04N2201/02439H04N2201/0458H04N2201/04755H04N2201/04767H04N2201/04794
    • An image reading apparatus is provided which enables image data of high S/N ratio with constant resolution to be acquired without fluctuations in resolution over the entire area of an original document, while actualizing the compact image reading apparatus by minimizing the spaces on the opposite end sides in the sub-scanning direction of the platen, has a line light source for applying light to the original document, a carriage installed with the line light source to travel in a sub-scanning direction of the document, a stepping motor for driving the carriage, a line sensor for receiving the reflected light of the document guided by the optical means to convert into image data, and control means for performing traveling control of the carriage, blinking control of the line light source, and control for capturing the image data from the line sensor, and captures the image data from the line sensor while varying a period of a motor clock signal to drive the stepping motor for a duration of acceleration control for starting traveling of the carriage to reach constant-velocity traveling after starting reading of the document.
    • 提供了一种图像读取装置,其能够获得具有恒定分辨率的高S / N比的图像数据,而不会在原始文档的整个区域上的分辨率波动,同时通过使相对端的空间最小化来实现小型图像读取装置 在台板的副扫描方向上的一侧具有用于向原稿施加光的线光源,安装有线光源的托架沿着文档的副扫描方向行进;步进马达,用于驱动 托架,用于接收由光学装置引导的文件的反射光转换为图像数据的线传感器,以及用于执行滑架的行进控制,线光源的闪烁控制和捕获图像数据的控制的控制装置 并且从线传感器捕获图像数据,同时改变电机时钟信号的周期以驱动步进电机持续一段时间 的加速度控制,用于开始车辆行驶以在开始读取文档之后达到恒定速度行驶。