公开(公告)号：US06454416B2

公开(公告)日：2002-09-24

申请号：US09841605

申请日：2001-04-25

申请人： Katsuhide Aoto ,  Kaoru Yanagawa

发明人： Katsuhide Aoto ,  Kaoru Yanagawa

IPC分类号： G03B2100

CPC分类号： H04N9/3105

摘要： A color liquid crystal projector has an optical system for color splitting. The optical system includes a mirror for reflecting a first primary-color light and transmitting second and third primary-color lights in light from a light source; a first phase plate for transmitting the second primary-color light from the mirror with its polarization degree rotated through 90°, and for transmitting the third primary-color light; a first prism for transmitting the second primary-color light from the first phase plate into a second liquid crystal display panel, and reflecting the third primary-color light from the first phase plate into a third liquid crystal display panel; a second prism for entering the first primary-color light from the mirror into a first liquid crystal display panel; and a dichroic prism for combining the first, second and third primary-color lights reflected from the liquid crystal display panels.

摘要翻译： 彩色液晶投影机具有用于分色的光学系统。 该光学系统包括用于反射第一原色光并在来自光源的光中透射第二和第三原色光的反射镜; 第一相位板，用于以其偏振度旋转90°的方式将来自反射镜的第二原色光透射，并且用于透射第三原色光; 第一棱镜，用于将第二原色光从第一相位板传输到第二液晶显示面板，并将来自第一相位板的第三原色光反射到第三液晶显示面板; 用于将来自反射镜的第一原色光进入第一液晶显示面板的第二棱镜; 以及用于组合从液晶显示面板反射的第一，第二和第三原色光的二向色棱镜。

公开(公告)号：US4320417A

公开(公告)日：1982-03-16

申请号：US193455

申请日：1980-10-03

申请人： Kentaro Hanma ,  Kaoru Yanagawa

发明人： Kentaro Hanma ,  Kaoru Yanagawa

IPC分类号： G03B13/36 ,  G02B7/28 ,  H04N5/232 ,  H04N3/26

CPC分类号： H04N5/23212

摘要： This invention relates to automatic focusing systems for video cameras and, more particularly, to an automatic focusing system, which is adopted to effect a focusing operation such as to render maximum the output of a detector detecting a high frequency component of a video signal.

摘要翻译： 本发明涉及用于摄像机的自动聚焦系统，更具体地说，涉及一种自动对焦系统，其用于实现聚焦操作，以便使检测器检测视频信号的高频分量的输出最大化。

公开(公告)号：US20090073155A1

公开(公告)日：2009-03-19

申请号：US12212701

申请日：2008-09-18

申请人： Hajime Akimoto ,  Kaoru Yanagawa

发明人： Hajime Akimoto ,  Kaoru Yanagawa

IPC分类号： G06F3/038

CPC分类号： G09G3/3233 ,  G09G2300/0861 ,  G09G2310/066 ,  G09G2320/043 ,  G09G2330/04

摘要： The present invention provides an image display device which can realize the stabilization of system electric power, and can suppress crosstalk attributed to voltage drop of power source line by preventing the irregularities in power consumption which occur with time. The image display device includes a plurality of pixels each of which includes a current-drive-type light emitting element, a plurality of signal lines which writes an image voltage in the respective pixels; and a write pixel selection means which selects the pixels in which the image voltage is written via the plurality of signal lines among the plurality of pixels with respect to every display line, and the image display device includes a power source line which supplies electricity to the light emitting elements in the respective pixels arranged on each display line, and a power source circuit which supplies a voltage having a ramp waveform whose voltage level is changed with time with respect to the power source line during a light emission period. The power source line is provided for every display line, and a phase of the voltage having the ramp waveform differs for every power source line.

摘要翻译： 本发明提供一种可以实现系统电力稳定的图像显示装置，并且可以通过防止随时间发生的功率消耗的不规则性来抑制归因于电源线的电压降的串扰。 图像显示装置包括多个像素，每个像素包括电流驱动型发光元件，在各个像素中写入图像电压的多条信号线; 以及写入像素选择装置，其针对每个显示行，经由多个像素中的多个信号线选择写入图像电压的像素，并且图像显示装置包括向该电源线供电的电源线 布置在每个显示线上的各个像素中的发光元件，以及电源电路，其在发光时段期间提供具有相对于电源线的电压电平随时间变化的斜坡波形的电压。 为每个显示线提供电源线，并且对于每个电源线，具有斜坡波形的电压的相位不同。

公开(公告)号：US06549248B1

公开(公告)日：2003-04-15

申请号：US09518679

申请日：2000-03-03

申请人： Toshio Miyazawa ,  Kaoru Yanagawa

发明人： Toshio Miyazawa ,  Kaoru Yanagawa

IPC分类号： G02F11335

CPC分类号： G02B27/283 ,  H04N5/7441 ,  H04N9/3105 ,  H04N9/3167

摘要： The optical system comprises three reflection liquid crystal panels, polarization spliters PBS-R, PBS-G PBS-B which polarize components of an incident light to be reflected by the respective reflection liquid crystal panels, color separation and composition elements. The polarization splitters further separate the polarization converted output light in either an outputting direction or a non-outputting direction corresponding to the polarization, and the color separation and composition elements are arranged as separate elements in terms of optical path and in such a manner that these elements are disposed adjacent to each other in terms of space.

摘要翻译： 光学系统包括三个反射液晶面板，偏振分离器PBS-R，PBS-G PBS-B，其偏振由各反射液晶面板反射的入射光的分量，颜色分离和组成元素。 偏振分离器进一步在与偏振相对应的输出方向或非输出方向上分离偏振转换的输出光，并且色分离和合成元件在光路方面被排列成分离的元件，并且使得这些 元件在空间方面彼此相邻地设置。