会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 29. 发明申请
    • Image forming apparatus and its control method
    • 图像形成装置及其控制方法
    • US20060119895A1
    • 2006-06-08
    • US11274141
    • 2005-11-16
    • Tsutomu TakataHiroki KitamuraYoshiyuki AkibaShuichi NakamuraYusuke YamamotoMasanao MotoyamaTakeshi AkiyamaKenzo TojimaTakaaki Nagaoka
    • Tsutomu TakataHiroki KitamuraYoshiyuki AkibaShuichi NakamuraYusuke YamamotoMasanao MotoyamaTakeshi AkiyamaKenzo TojimaTakaaki Nagaoka
    • H04N1/409
    • G06K15/1878G06K15/14G06K15/188G06K15/1881H04N1/29H04N1/40062H04N1/4092H04N1/506H04N1/52H04N1/58H04N1/60H04N1/6027H04N1/6072
    • With this invention, color shifting correction is performed first based on shifting amount information indicating a shifting amount with respect to the scanning direction on an image carrier of each image forming unit, and halftone processing is then performed, thus suppressing generation of moiré due to the color shifting correction, and forming a high-quality image. To this end, an image forming engine has color shifting amount storage units C, M, Y, and K (black) which store actual shifting amounts with respect to ideal scan directions on image carriers C, M, Y, and K in image forming units C, M, Y, and K. Color shifting correction amount arithmetic units C, M, Y, and K calculate color shifting correction amounts for respective color components on the basis of the stored color shifting amounts. Color shifting correction units C, M, Y, and K perform color shifting correction by converting coordinates upon reading out image data from bitmap memories C, M, Y, and K on the basis of the calculated color shifting correction amounts, and then perform tone correction. Data after tone correction undergo halftone processing by halftone processors C, M, Y, and K. PWM processors C, M, Y, and K generate PWM signals for scanning, and output them to exposure units C, M, Y, and K of the respective image forming units.
    • 利用本发明,首先基于在每个图像形成单元的图像载体上指示相对于扫描方向的移动量的移动量信息执行颜色偏移校正,然后执行半色调处理,从而抑制由于 颜色偏移校正,并形成高质量的图像。 为此,图像形成引擎具有在图像形成中存储图像载体C,M,Y和K上的理想扫描方向的实际移动量的色移量存储单元C,M,Y和K(黑色) 单位C,M,Y和K.颜色偏移校正量运算单元C,M,Y和K基于存储的颜色偏移量计算各个颜色分量的颜色偏移校正量。 颜色偏移校正单元C,M,Y和K基于计算出的色移校正量从位图存储器C,M,Y和K读出图像数据,通过转换坐标进行色移校正,然后执行色调 更正。 色调校正后的数据通过半色调处理器​​C,M,Y和K的半色调处理。PWM处理器C,M,Y和K生成用于扫描的PWM信号,并将其输出到曝光单元C,M,Y和K的曝光单元 相应的图像形成单元。
    • 30. 发明授权
    • Optical element and optical system having the same
    • 光学元件和光学系统具有相同的功能
    • US06890081B2
    • 2005-05-10
    • US10391609
    • 2003-03-20
    • Toshihiro SunagaHiroaki HoshiTakeshi Akiyama
    • Toshihiro SunagaHiroaki HoshiTakeshi Akiyama
    • G02B17/00G02B17/08G02B5/10
    • G02B17/086G02B17/0848
    • An optical element formed from a transparent optical material includes two refraction surfaces, a first reflection surface group having a plurality of internal reflection surfaces arrayed in a predetermined direction, a second reflection surface group opposing the first reflection surface group and having at least one internal reflection surface and two side surfaces opposing each other in parallel to the predetermined direction. Light incident from one of the refraction surfaces is alternately reflected by the internal reflection surfaces of the first reflection surface group and the internal reflection surface of the second reflection surface group and guided to the other refraction surface. The width of at least one of the plurality of internal reflection surfaces of the first reflection surface group and at least one internal reflection surface of the second reflection surface group in a direction in which the two side surfaces oppose each other is smaller than the distance between the two side surfaces in the direction in which the side surfaces oppose each other.
    • 由透明光学材料形成的光学元件包括两个折射面,具有沿预定方向排列的多个内反射面的第一反射面组,与第一反射面组相对的第二反射面组,具有至少一个内反射 表面和与预定方向平行的彼此相对的两个侧表面。 从一个折射面入射的光由第一反射面组的内反射面和第二反射面组的内反射面交替反射,并被引导到另一折射面。 第一反射面组的多个内反射面和第二反射面组的至少一个内反射面的两个侧面相对的方向的宽度小于 所述两个侧面在所述侧面彼此相对的方向上。