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    • 31. 发明授权
    • Load driving device and load driving method
    • 负载驱动装置和负载驱动方法
    • US07315135B2
    • 2008-01-01
    • US11346341
    • 2006-02-03
    • Jeong-il KangSang-hoon LeeKyoung-geun LeeYung-jun Park
    • Jeong-il KangSang-hoon LeeKyoung-geun LeeYung-jun Park
    • H05B41/24
    • H05B33/0815H05B33/0857
    • Provided is a load driving device controlling a drive of a load including a driver for periodically turning on/off a current according to a switching clock signal and supplying a average driving current to the load. Further provided is a dimming controller for controlling the driver to turn on/off the drive of the load based on a dimming step. Also provided is a controller for controlling at least one of the driver and the dimming controller so as to make a step interval of the dimming step and a switching clock period of the switching clock signal the same. A load driving device is provided that is capable of stably controlling the dimming of a drive of a load, by improving a linear response characteristic of a driving current according to a dimming control.
    • 提供了一种负载驱动装置,其控制包括驱动器的负载的驱动,以根据开关时钟信号周期性地接通/关断电流,并将平均驱动电流提供给负载。 还提供了一种调光控制器,用于控制驾驶员基于调光步骤打开/关闭负载的驱动。 还提供了一种用于控制驱动器和调光控制器中的至少一个的控制器,以便使调光步骤的步进间隔和开关时钟信号的开关时钟周期相同。 通过根据调光控制改善驱动电流的线性响应特性,提供能够稳定地控制负载驱动的调光的负载驱动装置。
    • 34. 发明申请
    • Light deflecting apparatus
    • 光偏转装置
    • US20070115527A1
    • 2007-05-24
    • US11541747
    • 2006-10-03
    • Sang-hoon Lee
    • Sang-hoon Lee
    • G02B26/08
    • G02B26/121
    • A light deflecting apparatus is employed in a light scanning unit of an image forming device. Such a deflecting apparatus includes a stator having a sleeve disposed at a printed circuit board (PCB), and a core disposed around the sleeve, to which coils are wound; a rotor having a rotor frame connected to an axis which is rotatably supported in the sleeve, and a rotor housing fixed to the rotor frame to surround the core; and a polygon mirror supported on the rotor frame. At least one of the rotor frame and the rotor housing is formed of a plastic material. Because the rotor frame and/or the rotor housing is formed of the plastic material, the high precision manufacture of such a light deflecting apparatus which requires mechanical machining and press working, is not needed. As a result, the manufacture of such a light deflecting apparatus is made simpler and easier; and, likewise, a working time and an exhaustion of manpower are reduced, so that a manufacturing cost is reduced. In addition, an unbalance of weight at the rotor frame and/or the rotor housing, which is influenced by a working precision thereof, is minimized, so that the light deflecting apparatus may maintain a stable performance.
    • 在图像形成装置的光扫描单元中采用光偏转装置。 这种偏转装置包括具有布置在印刷电路板(PCB)上的套筒的定子和围绕套筒设置的芯,线圈被缠绕到该套筒上; 转子,其具有连接到可旋转地支撑在所述套筒中的轴线的转子架,以及固定到所述转子架以包围所述芯的转子壳体; 以及支撑在转子架上的多面镜。 转子框架和转子壳体中的至少一个由塑料材料形成。 由于转子框架和/或转子壳体由塑料材料形成,所以不需要这种需要机械加工和冲压加工的光偏转装置的高精度制造。 结果,使这种光偏转装置的制造更加简单和容易; 同样,减少了人力的工作时间和疲劳,从而降低了制造成本。 此外,受到其工作精度影响的转子架和/或转子壳体的重量的不平衡被最小化,使得光偏转装置可以保持稳定的性能。
    • 35. 发明申请
    • Load driving device and load driving method
    • 负载驱动装置和负载驱动方法
    • US20070001619A1
    • 2007-01-04
    • US11346341
    • 2006-02-03
    • Jeong-il KangSang-hoon LeeKyoung-geun LeeYung-jun Park
    • Jeong-il KangSang-hoon LeeKyoung-geun LeeYung-jun Park
    • H05B41/24
    • H05B33/0815H05B33/0857
    • Provided is a load driving device controlling a drive of a load including a driver for periodically turning on/off a current according to a switching clock signal and supplying a average driving current to the load. Further provided is a dimming controller for controlling the driver to turn on/off the drive of the load based on a dimming step. Also provided is a controller for controlling at least one of the driver and the dimming controller so as to make a step interval of the dimming step and a switching clock period of the switching clock signal the same. A load driving device is provided that is capable of stably controlling the dimming of a drive of a load, by improving a linear response characteristic of a driving current according to a dimming control.
    • 提供了一种负载驱动装置,其控制包括驱动器的负载的驱动,以根据开关时钟信号周期性地接通/关断电流,并将平均驱动电流提供给负载。 还提供了一种调光控制器,用于控制驾驶员基于调光步骤打开/关闭负载的驱动。 还提供了一种用于控制驱动器和调光控制器中的至少一个的控制器,以便使调光步骤的步进间隔和开关时钟信号的开关时钟周期相同。 通过根据调光控制改善驱动电流的线性响应特性,提供能够稳定地控制负载驱动的调光的负载驱动装置。
    • 38. 发明申请
    • Light scanning unit and image forming apparatus employing the same
    • 光扫描单元和采用该扫描单元的成像设备
    • US20060082635A1
    • 2006-04-20
    • US11248275
    • 2005-10-13
    • Woo-kyu KimHyun-surk KimSang-hoon Lee
    • Woo-kyu KimHyun-surk KimSang-hoon Lee
    • B41J2/415
    • B41J29/02B41J2/471
    • A light scanning unit, which can prevent contamination using a photocatalytic layer, and an image forming apparatus employing the same. The light scanning unit includes a light source to switch on and off to generate at least one beam that corresponds to an image signal, a beam deflector to deflect and scan the at least one beam emitted by the light source, a housing containing the light source and the beam deflector, a transparent cover installed on the housing to protect internal elements within the housing and to transmit the at least one beam deflected and scanned by the beam deflector, and a photocatalytic layer formed on at least one surface of the transparent cover to be activated by an incident beam having a predetermined wavelength to decompose organic materials thereon.
    • 可以防止使用光催化层污染的光扫描单元和使用该光扫描单元的图像形成装置。 光扫描单元包括用于接通和关断的光源以产生对应于图像信号的至少一个光束,用于偏转和扫描由光源发射的至少一个光束的光束偏转器,包含光源的壳体 和光束偏转器,透明盖安装在壳体上以保护壳体内的内部元件并透射由光束偏转器偏转和扫描的至少一个光束,以及形成在透明盖的至少一个表面上的光催化层, 由具有预定波长的入射光束激活,以在其上分解有机材料。