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    Laser projector with reduced speckle
    1.
    发明授权
    Laser projector with reduced speckle 有权
    激光投影机减少斑点

    公开(公告)号：US09122145B2

    公开(公告)日：2015-09-01

    申请号：US12912555

    申请日：2010-10-26

    申请人： Tadayoshi Kosaka ,  Satoshi Ouchi ,  Mayumi Nagayoshi ,  Yoshiho Seo ,  Tomoki Kobori

    发明人： Tadayoshi Kosaka ,  Satoshi Ouchi ,  Mayumi Nagayoshi ,  Yoshiho Seo ,  Tomoki Kobori

    IPC分类号： G02B27/48 ,  G03B33/12 ,  G02B27/10 ,  G03B21/14 ,  H04N9/31 ,  G02F1/13 ,  G02F1/1343 ,  G02F1/141

    CPC分类号： G03B33/12 ,  G02B27/104 ,  G02B27/48 ,  G02F1/1313 ,  G02F1/134336 ,  G02F1/141 ,  G03B21/008 ,  G03B21/14 ,  G03B21/2033 ,  H04N9/3129 ,  H04N9/3132 ,  H04N9/3135

    摘要： A projector using coherent light as a light source includes: one or more coherent light sources emitting coherent light beams; a beam scanner which changes a direction of the coherent light beam; and a beam splitter which splits a beam into multiple segments and changes a phase of light of each split segment, the beam splitter being located in an optical path between the beam scanner and the coherent light source. This projector reduces speckle noises. The beam splitter includes a pair of transparent substrates; a plurality of parallel electrodes disposed on each surface of the pair of transparent substrates, the pair of the parallel electrodes being disposed in a perpendicular direction to each other. Voltages are applied to the respective electrodes at predetermined time intervals so as to produce different potentials in a liquid crystal sandwiched by the transparent substrates.

    摘要翻译： 使用相干光作为光源的投影仪包括：发射相干光束的一个或多个相干光源; 改变相干光束的方向的光束扫描器; 以及分束器，其将光束分成多个段并改变每个分割段的光的相位，所述分束器位于光束扫描器和相干光源之间的光路中。 本投影机可减少斑点噪音。 分束器包括一对透明基板; 设置在所述一对透明基板的每个表面上的多个平行电极，所述一对平行电极彼此垂直设置。 电压以预定的时间间隔施加到各个电极，以便在由透明基板夹持的液晶中产生不同的电位。

    Optical Unit
    2.
    发明申请
    Optical Unit 有权
    光学单元

    公开(公告)号：US20130107224A1

    公开(公告)日：2013-05-02

    申请号：US13672744

    申请日：2012-11-09

    申请人： Mayumi Nagayoshi ,  Satoshi Ouchi ,  Tadayoshi Kosaka ,  Tomoki Kobori ,  Yoshiho Seo

    发明人： Mayumi Nagayoshi ,  Satoshi Ouchi ,  Tadayoshi Kosaka ,  Tomoki Kobori ,  Yoshiho Seo

    IPC分类号： G03B21/20 ,  G02B27/09

    CPC分类号： G09G3/02 ,  G02B27/09 ,  G02B27/104 ,  G02B27/145 ,  G03B21/2013 ,  H04N9/3129 ,  H04N9/3155 ,  H04N9/3164

    摘要： A beam light source of an image display device which displays an image on a screen by scanning an optical beam in a two-dimensional direction in which the beam light source includes a light source that emits a diffuse light modulated according to an image signal, and an optical element that shapes the light emitted from the light source to the optical beam. The optical beam has an elliptically shaped beam spot on the screen in which a major axis of the beam spot is substantially perpendicular to a scanning direction. A horizontal spot size of the optical beam on an exit surface of the optical element is at least or equal to a horizontal spot size of the optical beam on the screen, and the horizontal spot size of the optical beam on the screen is no greater than a horizontal pixel pitch displayed on the screen.

    摘要翻译： 1.一种图像显示装置的光束光源，其通过在二维方向上扫描光束而在屏幕上显示图像，其中所述光束光源包括根据图像信号发射漫射光的光源，以及 光学元件，其将从光源发射的光成形为光束。 光束在屏幕上具有椭圆形的光束点，其中光斑的长轴基本上垂直于扫描方向。 光学元件的出射面上的光束的水平光点尺寸至少等于屏幕上光束的水平光斑尺寸，屏幕上的光束的水平光点尺寸不大于 屏幕上显示的水平像素间距。

    Optical unit
    3.
    发明授权
    Optical unit 有权
    光学单元

    公开(公告)号：US08529068B2

    公开(公告)日：2013-09-10

    申请号：US13672744

    申请日：2012-11-09

    申请人： Tomoki Kobori ,  Yoshiho Seo ,  Tadayoshi Kosaka ,  Mayumi Nagayoshi ,  Satoshi Ouchi

    发明人： Tomoki Kobori ,  Yoshiho Seo ,  Tadayoshi Kosaka ,  Mayumi Nagayoshi ,  Satoshi Ouchi

    IPC分类号： G03B21/00

    CPC分类号： G09G3/02 ,  G02B27/09 ,  G02B27/104 ,  G02B27/145 ,  G03B21/2013 ,  H04N9/3129 ,  H04N9/3155 ,  H04N9/3164

    摘要： A beam light source of an image display device which displays an image on a screen by scanning an optical beam in a two-dimensional direction in which the beam light source includes a light source that emits a diffuse light modulated according to an image signal, and an optical element that shapes the light emitted from the light source to the optical beam. The optical beam has an elliptically shaped beam spot on the screen in which a major axis of the beam spot is substantially perpendicular to a scanning direction. A horizontal spot size of the optical beam on an exit surface of the optical element is at least or equal to a horizontal spot size of the optical beam on the screen, and the horizontal spot size of the optical beam on the screen is no greater than a horizontal pixel pitch displayed on the screen.

    摘要翻译： 1.一种图像显示装置的光束光源，其通过在二维方向上扫描光束而在屏幕上显示图像，其中所述光束光源包括根据图像信号发射漫射光的光源，以及 光学元件，其将从光源发射的光成形为光束。 光束在屏幕上具有椭圆形的光束点，其中光斑的长轴基本上垂直于扫描方向。 光学元件的出射面上的光束的水平光点尺寸至少等于屏幕上光束的水平光斑尺寸，屏幕上的光束的水平光点尺寸不大于 屏幕上显示的水平像素间距。

    Optical unit
    4.
    发明授权
    Optical unit 有权
    光学单元

    公开(公告)号：US08308301B2

    公开(公告)日：2012-11-13

    申请号：US12759027

    申请日：2010-04-13

    申请人： Mayumi Nagayoshi ,  Satoshi Ouchi ,  Tadayoshi Kosaka ,  Tomoki Kobori ,  Yoshiho Seo

    发明人： Mayumi Nagayoshi ,  Satoshi Ouchi ,  Tadayoshi Kosaka ,  Tomoki Kobori ,  Yoshiho Seo

    IPC分类号： G03B21/00

    CPC分类号： G09G3/02 ,  G02B27/09 ,  G02B27/104 ,  G02B27/145 ,  G03B21/2013 ,  H04N9/3129 ,  H04N9/3155 ,  H04N9/3164

    摘要： Disclosed is an optical unit for an image display device, the unit including: one or a plurality of light sources; one or a plurality of optical elements that control a spread of light; a combining element that combines the beams of light emitted from the light sources; and a scanning element, wherein the light from each of the light sources generates an elliptical beam spot on a screen and the spot has a major axis substantially perpendicular to a scanning direction, the result is that the unit is simple in structure, inexpensive, compact, lightweight, and capable of providing high-resolution image quality, thus providing the display device reduced dimensionally and in weight. Such an image display device using the optical unit is also disclosed.

    摘要翻译： 公开了一种用于图像显示装置的光学单元，该单元包括：一个或多个光源; 控制光的扩散的一个或多个光学元件; 组合从光源发射的光束的组合元件; 以及扫描元件，其中来自每个光源的光在屏幕上产生椭圆形光束点，并且光点具有基本上垂直于扫描方向的长轴，结果是该单元结构简单，价格便宜，致密 ，重量轻，并且能够提供高分辨率图像质量，从而为显示装置的尺寸和重量提供了减少的效果。 还公开了使用该光学单元的这种图像显示装置。

    Laser projector and method of scanning laser beam
    5.
    发明授权
    Laser projector and method of scanning laser beam 有权
    激光投影仪和扫描激光束的方法

    公开(公告)号：US08757816B2

    公开(公告)日：2014-06-24

    申请号：US13247445

    申请日：2011-09-28

    申请人： Tadayoshi Kosaka ,  Satoshi Ouchi ,  Yoshiho Seo ,  Tomoki Kobori

    发明人： Tadayoshi Kosaka ,  Satoshi Ouchi ,  Yoshiho Seo ,  Tomoki Kobori

    IPC分类号： G02B27/48

    CPC分类号： G02B27/48 ,  H01S5/0071 ,  H01S5/042 ,  H01S5/4093 ,  H04N9/3129

    摘要： A laser projector for scanning a laser beam output by a multimode laser light source and displaying an image includes a laser driving unit to drive the multimode laser light source so that two-dimensional output patterns of a shape of the laser beam are different in each display frame. The laser driving unit applies to the multimode laser light source a driving waveform pattern which has the same product of an output intensity and output time of a laser light source during a display time of one dot and which includes an output intensity and output time different in each display frame.

    摘要翻译： 用于扫描由多模激光光源输出并显示图像的激光束的激光投影仪包括驱动多模激光光源的激光驱动单元，使得每个显示器中激光束的形状的二维输出图案不同 帧。 激光驱动单元向多模激光光源施加驱动波形图案，该驱动波形图案在一点的显示时间期间具有与激光光源的输出强度和输出时间相同的乘积，并且包括输出强度和输出时间不同 每个显示框。

    LASER PROJECTOR AND METHOD OF SCANNING LASER BEAM
    6.
    发明申请
    LASER PROJECTOR AND METHOD OF SCANNING LASER BEAM 有权
    激光投射器和扫描激光束的方法

    公开(公告)号：US20120082177A1

    公开(公告)日：2012-04-05

    申请号：US13247445

    申请日：2011-09-28

    申请人： Tadayoshi Kosaka ,  Satoshi Ouchi ,  Yoshiho Seo ,  Tomoki Kobori

    发明人： Tadayoshi Kosaka ,  Satoshi Ouchi ,  Yoshiho Seo ,  Tomoki Kobori

    IPC分类号： H01S3/10

    CPC分类号： G02B27/48 ,  H01S5/0071 ,  H01S5/042 ,  H01S5/4093 ,  H04N9/3129

    摘要： A laser projector for scanning a laser beam output by a multimode laser light source and displaying an image includes a laser driving unit to drive the multimode laser light source so that two-dimensional output patterns of a shape of the laser beam are different in each display frame. The laser driving unit applies to the multimode laser light source a driving waveform pattern which has the same product of an output intensity and output time of a laser light source during a display time of one dot and which includes an output intensity and output time different in each display frame.

    摘要翻译： 用于扫描由多模激光光源输出并显示图像的激光束的激光投影仪包括驱动多模激光光源的激光驱动单元，使得每个显示器中激光束的形状的二维输出图案不同 帧。 激光驱动单元向多模激光光源施加驱动波形图案，该驱动波形图案在一点的显示时间期间具有与激光光源的输出强度和输出时间相同的乘积，并且包括输出强度和输出时间不同 每个显示框。

    DISPLAY APPARATUS
    7.
    发明申请
    DISPLAY APPARATUS 有权
    显示设备

    公开(公告)号：US20120327391A1

    公开(公告)日：2012-12-27

    申请号：US13605281

    申请日：2012-09-06

    申请人： Tomoki Kobori ,  Satoshi Ouchi ,  Koji Hirata ,  Hidehiro Ikeda ,  Kazuo Shikita

    发明人： Tomoki Kobori ,  Satoshi Ouchi ,  Koji Hirata ,  Hidehiro Ikeda ,  Kazuo Shikita

    IPC分类号： G01C3/08

    CPC分类号： H04N9/3185 ,  H04N9/3129 ,  H04N9/3194

    摘要： A display apparatus is provided which, when projecting a video onto a curved surface of an object for display, can realize an undistorted display of the video. The measuring means outputs the distance information representing the distance to the object. Based on the distance information produced by the measuring means, the curved surface contour is detected with high precision. According to at least the detected curved surface contour distortions, pixels of the display image are unevenly rearranged to correct the video information before it is output. This arrangement realizes an undistorted display of video when the video is projected onto the curved surface of the object.

    摘要翻译： 提供一种显示装置，当将视频投影到用于显示的对象的曲面上时，可以实现视频的不失真显示。 测量装置输出表示到物体的距离的距离信息。 基于由测量装置产生的距离信息，以高精度检测曲面轮廓。 根据至少检测到的弯曲表面轮廓失真，显示图像的像素不均匀地重排，以便在输出视频信息之前校正视频信息。 当视频投影到对象的曲面上时，这种布置实现视频的无失真显示。

    Display apparatus
    8.
    发明授权
    Display apparatus 有权
    显示装置

    公开(公告)号：US08287136B2

    公开(公告)日：2012-10-16

    申请号：US12426638

    申请日：2009-04-20

    申请人： Tomoki Kobori ,  Satoshi Ouchi ,  Koji Hirata ,  Hidehiro Ikeda ,  Kazuo Shikita

    发明人： Tomoki Kobori ,  Satoshi Ouchi ,  Koji Hirata ,  Hidehiro Ikeda ,  Kazuo Shikita

    IPC分类号： G03B21/00 ,  G03B21/14 ,  G03B21/28 ,  G01C3/00 ,  G01C5/00 ,  G01C3/08

    CPC分类号： H04N9/3185 ,  H04N9/3129 ,  H04N9/3194

    摘要： A display apparatus is provided which, when projecting a video onto a curved surface of an object for display, can realize an undistorted display of the video. The measuring means outputs the distance information representing the distance to the object. Based on the distance information produced by the measuring means, the curved surface contour is detected with high precision. According to at least the detected curved surface contour distortions, pixels of the display image are unevenly rearranged to correct the video information before it is output. This arrangement realizes an undistorted display of video when the video is projected onto the curved surface of the object.

    摘要翻译： 提供一种显示装置，当将视频投影到用于显示的对象的曲面上时，可以实现视频的不失真显示。 测量装置输出表示到物体的距离的距离信息。 基于由测量装置产生的距离信息，以高精度检测曲面轮廓。 根据至少检测到的弯曲表面轮廓失真，显示图像的像素不均匀地重排，以便在输出视频信息之前校正视频信息。 当视频投影到对象的曲面上时，这种布置实现视频的无失真显示。