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    Intermediate image formation optical system, image formation device, and methods thereof
    41.
    发明授权
    Intermediate image formation optical system, image formation device, and methods thereof 失效
    中间成像光学系统，图像形成装置及其方法

    公开(公告)号：US08162485B2

    公开(公告)日：2012-04-24

    申请号：US11341518

    申请日：2006-01-30

    申请人： Atsushi Takaura ,  Takanobu Osaka ,  Yasuyuki Takiguchi ,  Toshiaki Tokita ,  Kazuhiro Fujita ,  Kazuya Miyagaki ,  Hiroyuki Sugimoto

    发明人： Atsushi Takaura ,  Takanobu Osaka ,  Yasuyuki Takiguchi ,  Toshiaki Tokita ,  Kazuhiro Fujita ,  Kazuya Miyagaki ,  Hiroyuki Sugimoto

    IPC分类号： G03B21/14 ,  G03B21/26 ,  H04N5/74 ,  G09G5/02 ,  G09G3/18 ,  G09G3/36 ,  G02F1/1335

    CPC分类号： H04N9/3141 ,  H04N5/7441

    摘要： An image projection device performing pixel shift in synchronization with sequential updating of image data is disclosed that is able to start and stop pixel shift operations within a period of updating the image frames while maintaining brightness of the image. The image projection device has an intermediate image formation optical system including a light valve able to update an image frame in a line-sequential manner, a pixel shift unit to shift the light path of a light beam from the light valve so as to shift a position of an image formed on the light valve, and an intermediate image formation unit arranged on the light path between the light valve and the pixel shift unit for forming an intermediate image of the image on the light valve at a position of the pixel shift unit.

    摘要翻译： 公开了与图像数据的顺序更新同步地执行像素移位的图像投影装置，其能够在保持图像的亮度的同时更新图像帧的周期内开始和停止像素移位操作。 图像投影装置具有中间图像形成光学系统，该中间图像形成光学系统包括能够以顺序方式更新图像帧的光阀，移动来自光阀的光束的光路的像素移位单元， 形成在光阀上的图像的位置和布置在光阀和像素移位单元之间的光路上的中间图像形成单元，用于在像素移位单元的位置处形成光阀上的图像的中间图像 。

    Image display apparatus and alternative current drive method
    43.
    发明授权
    Image display apparatus and alternative current drive method 有权
    图像显示装置和替代电流驱动方法

    公开(公告)号：US07733317B2

    公开(公告)日：2010-06-08

    申请号：US11043259

    申请日：2005-01-27

    申请人： Toshiharu Murai ,  Kazuhiro Fujita ,  Kenji Kameyama ,  Toshiaki Tokita ,  Yasuyuki Takiguchi

    发明人： Toshiharu Murai ,  Kazuhiro Fujita ,  Kenji Kameyama ,  Toshiaki Tokita ,  Yasuyuki Takiguchi

    IPC分类号： G09G3/36

    CPC分类号： G09G3/3614 ,  G09G3/001 ,  G09G3/007 ,  G09G2320/0247 ,  H04N9/3111 ,  H04N9/312

    摘要： A reliable image display apparatus is provided that is capable of preventing a direct current from being applied to liquid crystal of a spatial light modulating element so that damage such as burns in the liquid crystal and screen flicker may be prevented and a high resolution image with high image quality may be displayed. The image display apparatus is configured to divide a frame into 2i sub frames (i corresponding to a natural number) and sequentially display the sub frames using the liquid crystal spatial light modulating element. The image display apparatus includes a polarity switching unit configured to reverse the polarity of a drive voltage for a pixel of the spatial light modulating element for every j sub frame(s) (j corresponding to a natural number that is less than 2i) and for every n frame(s)(n corresponding to a natural number).

    摘要翻译： 提供了一种可靠的图像显示装置，其能够防止直流电流被施加到空间光调制元件的液晶，使得可以防止诸如液晶中的燃烧和屏幕闪烁的损坏和高分辨率图像 可能会显示图像质量。 图像显示装置被配置为将帧划分成2i个子帧（i对应于自然数），并且使用液晶空间光调制元件顺序地显示子帧。 图像显示装置包括：极性切换单元，被配置为对于每个j个子帧（对应于小于2i的自然数），反转空间光调制元件的像素的驱动电压的极性，并且为 每n帧（n对应于自然数）。

    Optical deflection device and optical deflection method that control occurrence of alignment defect
    47.
    发明授权
    Optical deflection device and optical deflection method that control occurrence of alignment defect 失效
    光偏转装置和光偏转方法控制对准缺陷的发生

    公开(公告)号：US07310181B2

    公开(公告)日：2007-12-18

    申请号：US11324538

    申请日：2006-01-04

    申请人： Yumi Matsuki ,  Hiroyuki Sugimoto ,  Toshiaki Tokita ,  Shigeaki Nimura ,  Masanori Kobayashi ,  Yasuyuki Takiguchi

    发明人： Yumi Matsuki ,  Hiroyuki Sugimoto ,  Toshiaki Tokita ,  Shigeaki Nimura ,  Masanori Kobayashi ,  Yasuyuki Takiguchi

    IPC分类号： G02F1/29 ,  G02F1/23

    CPC分类号： G02F1/31 ,  G02F1/1393 ,  G02F1/141

    摘要： An optical deflection device includes an optical deflection element having a pair of transparent boards arranged in a mutually opposing manner. A liquid crystal layer is filled between the boards and forms a chiral smectic C phase. An orientation film orients liquid crystal molecules in the liquid crystal layer in a substantially perpendicular direction with respect to the liquid crystal layer. Electrodes generate an electric field in a substantially parallel direction with respect to the liquid crystal layer. A first voltage application part applies, to the electrodes, an ac voltage of a deflection frequency switching the optical deflection direction of the optical deflection element. A second voltage application part applies, to the electrodes, an ac voltage of a higher frequency than the deflection frequency. A stop process part causes the second voltage application part to apply the ac voltage of the higher frequency than the deflection frequency after causing the first voltage application part to apply the ac voltage of the deflection frequency, when stopping an operation of switching the optical deflection direction of the optical deflection element.

    摘要翻译： 光学偏转装置包括具有以相互相对的方式布置的一对透明板的光学偏转元件。 液晶层填充在板之间并形成手性近晶C相。 取向膜相对于液晶层在大致垂直的方向上使液晶层中的液晶分子定向。 电极相对于液晶层在大致平行的方向上产生电场。 第一电压施加部分向电极施加切换光学偏转元件的光学偏转方向的偏转频率的交流电压。 第二电压施加部分向电极施加频率高于偏转频率的交流电压。 停止处理部分使第二电压施加部分在使第一施加电压施加部分施加偏转频率的交流电压之后，当停止切换光学偏转方向的操作时，施加频率高于偏转频率的交流电压 的光学偏转元件。

    Imaging unit, optical write unit, optical read unit and image forming apparatus
    48.
    发明授权
    Imaging unit, optical write unit, optical read unit and image forming apparatus 失效
    成像单元，光学写入单元，光学读取单元和成像设备

    公开(公告)号：US07304705B2

    公开(公告)日：2007-12-04

    申请号：US10394269

    申请日：2003-03-24

    申请人： Hiroyuki Sugimoto ,  Toshiaki Tokita ,  Yumi Matsuki ,  Masanori Kobayashi ,  Yasuyuki Takiguchi

    发明人： Hiroyuki Sugimoto ,  Toshiaki Tokita ,  Yumi Matsuki ,  Masanori Kobayashi ,  Yasuyuki Takiguchi

    IPC分类号： G02F1/1343 ,  C09K19/02

    CPC分类号： G02F1/31 ,  B41J2/451 ,  G02F1/1347 ,  G02F1/141

    摘要： An imaging unit images light on a light receiving element, and includes an optical path shifting element, and a lens arranged on an input side or an output side of the optical path shifting element. The optical path shifting element includes a liquid crystal layer which is applied with an electrical field in a direction approximately parallel to an in-plane direction. The liquid crystal layer is made of a chiral smectic C phase ferroelectric liquid crystal having a homeotropic alignment. The optical path shifting element shifts an optical path of the light input thereto in an optical path shifting direction.

    摘要翻译： 成像单元将光照射在光接收元件上，并且包括光路移动元件和布置在光路移动元件的输入侧或输出侧的透镜。 光路移动元件包括在大致平行于面内方向的方向上施加电场的液晶层。 液晶层由具有垂直取向的手性近晶C相铁电液晶制成。 光路移动元件沿光路移动方向移动输入光的光路。