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    Optical system and display apparatus
    1.
    发明授权
    Optical system and display apparatus 有权
    光学系统和显示设备

    公开(公告)号：US07468843B2

    公开(公告)日：2008-12-23

    申请号：US11505771

    申请日：2006-08-17

    申请人： Yasushi Tanijiri ,  Hiroaki Ueda ,  Ichiro Kasai ,  Takao Kobayashi

    发明人： Yasushi Tanijiri ,  Hiroaki Ueda ,  Ichiro Kasai ,  Takao Kobayashi

    IPC分类号： G02B27/14 ,  G09G5/00

    CPC分类号： G02B5/10 ,  G02B5/30 ,  G02B27/0172 ,  G02B2027/011 ,  G02B2027/0178

    摘要： A display apparatus which has a mirror with a free curved reflective surface of which curvature fluctuates with inflection points, a liquid crystal display (LCD), a back light and a polarizer. Light of an image which was modulated by the LCD is reflected by the free curved reflective surface and passes through the polarizer. Then, the light is directed to an optical pupil. Since the curvature of the free curved reflective surface fluctuates with inflection points, curvature of field and distortion can be corrected properly, and an image of high quality can be formed.

    摘要翻译： 具有自由弯曲反射面的反射镜的显示装置，其曲率随着拐点而波动，液晶显示器（LCD），背光和偏振器。 由LCD调制的图像的光被自由弯曲的反射表面反射并通过偏振器。 然后，光被引导到光学瞳孔。 由于自由弯曲反射面的曲率随着拐点而波动，所以可以适当地校正曲率和畸变，并且可以形成高质量的图像。

    Optical system and display apparatus
    2.
    发明授权
    Optical system and display apparatus 有权
    光学系统和显示设备

    公开(公告)号：US07136228B2

    公开(公告)日：2006-11-14

    申请号：US10464268

    申请日：2003-06-18

    申请人： Yasushi Tanijiri ,  Hiroaki Ueda ,  Ichiro Kasai ,  Takao Kobayashi

    发明人： Yasushi Tanijiri ,  Hiroaki Ueda ,  Ichiro Kasai ,  Takao Kobayashi

    IPC分类号： G02B27/14

    CPC分类号： G02B5/10 ,  G02B5/30 ,  G02B27/0172 ,  G02B2027/011 ,  G02B2027/0178

    摘要： A display apparatus which has a mirror with a free curved reflective surface of which curvature fluctuates with inflection points, a liquid crystal display (LCD), a back light and a polarizer. Light of an image which was modulated by the LCD is reflected by the free curved reflective surface and passes through the polarizer. Then, the light is directed to an optical pupil. Since the curvature of the free curved reflective surface fluctuates with inflection points, curvature of field and distortion can be corrected properly, and an image of high quality can be formed.

    摘要翻译： 具有自由弯曲反射面的反射镜的显示装置，其曲率随着拐点而波动，液晶显示器（LCD），背光和偏振器。 由LCD调制的图像的光被自由弯曲的反射表面反射并通过偏振器。 然后，光被引导到光学瞳孔。 由于自由弯曲反射面的曲率随着拐点而波动，所以可以适当地校正曲率和畸变，并且可以形成高质量的图像。

    Image display apparatus
    4.
    发明授权
    Image display apparatus 失效
    图像显示装置

    公开(公告)号：US06323999B1

    公开(公告)日：2001-11-27

    申请号：US09630617

    申请日：2000-08-02

    申请人： Hiroaki Ueda ,  Kenji Ishibashi ,  Yasushi Kobayashi ,  Ichiro Kasai ,  Takeshi Endo ,  Yasushi Tanijiri

    发明人： Hiroaki Ueda ,  Kenji Ishibashi ,  Yasushi Kobayashi ,  Ichiro Kasai ,  Takeshi Endo ,  Yasushi Tanijiri

    IPC分类号： G03B2156

    CPC分类号： G03B21/10 ,  G02B27/2228 ,  G02B27/2235 ,  G02B27/225 ,  G03B21/28

    摘要： An image display apparatus is provided with a screen having retro-reflectivity, a liquid crystal display device displaying an image, a projection optical system projecting the light of the liquid crystal display device onto the screen, and a beam magnifier located close to the screen and magnifying the light beams, included in the projected light, expressing individual points of the image. The beam magnifier is composed of a diffraction optical element or a diffusing plate, and magnifies each light beam so that the magnification is larger in the direction of the horizontal field of view than in the direction of the vertical field of view. When images having parallax are provided for the left and right eyes, an upper limit of the magnification of the light beams is set in consideration of the distance between the left and right eyes to prevent cross-talk.

    摘要翻译： 图像显示装置设置有具有反射率的屏幕，显示图像的液晶显示装置，将液晶显示装置的光投射到屏幕上的投影光学系统和位于屏幕附近的光束放大镜，以及 放大包含在投影光中的光束，表示图像的各个点。 光束放大镜由衍射光学元件或扩散板构成，并且放大每个光束，使得在水平视场方向上的放大倍率大于垂直视场方向。 当为左眼和右眼提供具有视差的图像时，考虑到左眼和右眼之间的距离来设定光束的倍率的上限以防止串扰。

    Image display apparatus
    5.
    发明授权
    Image display apparatus 有权
    图像显示装置

    公开(公告)号：US06816132B2

    公开(公告)日：2004-11-09

    申请号：US09843633

    申请日：2001-04-27

    申请人： Yasushi Tanijiri ,  Hiroaki Ueda ,  Kenji Ishibashi ,  Ichiro Kasai

    发明人： Yasushi Tanijiri ,  Hiroaki Ueda ,  Kenji Ishibashi ,  Ichiro Kasai

    IPC分类号： G09G500

    CPC分类号： G02B27/0172 ,  G02B2027/0123 ,  G02B2027/0132 ,  G02B2027/0178 ,  G02C7/14

    摘要： An image display apparatus is provided for providing a virtual image to an observer. The image display apparatus includes an image display unit, an eyepiece optical system, and a container. The image display unit is for providing modulated light corresponding to the virtual image. The eyepiece optical system is for directing the modulated light from the image display unit to one or both of the observer's eyes. The container is for supporting the image display unit on an edge portion of the eyepiece optical assembly.

    摘要翻译： 提供了一种用于向观察者提供虚拟图像的图像显示装置。 图像显示装置包括图像显示单元，目镜光学系统和容器。 图像显示单元用于提供对应于虚像的调制光。 目镜光学系统用于将来自图像显示单元的调制光引导到观察者的眼睛中的一个或两个。 容器用于将图像显示单元支撑在目镜光学组件的边缘部分上。

    Information display device
    6.
    发明授权
    Information display device 有权
    信息显示设备

    公开(公告)号：US06919976B2

    公开(公告)日：2005-07-19

    申请号：US10848889

    申请日：2004-05-19

    申请人： Ichiro Kasai ,  Hiroaki Ueda ,  Yasushi Tanijiri

    发明人： Ichiro Kasai ,  Hiroaki Ueda ,  Yasushi Tanijiri

    IPC分类号： G02B27/01 ,  G03H1/00

    CPC分类号： G02B27/0081 ,  G02B27/0172 ,  G02B2027/0178

    摘要： An information display device provided with a prism having at least two reflecting surfaces arranged in facing each other and a hologram surface formed of a reflection-type hologram. And at least one of the two reflecting surfaces is a light-beam-selective surface that selectively transmits or reflects light in accordance with its incident angle. An image light emitted from an image display means enters the prism, and is reflected between the reflecting surfaces, and then is diffractively reflected on the hologram surface, and, after being transmitted through the light-beam-selective surface, is directed to an observer's pupil.

    摘要翻译： 一种具有棱镜的信息显示装置，所述棱镜具有彼此相对布置的至少两个反射表面和由反射型全息图形成的全息图表面。 并且两个反射表面中的至少一个是根据其入射角选择性地透射或反射光的光束选择表面。 从图像显示装置发射的图像光进入棱镜，并在反射面之间反射，然后在全息图表面上衍射地反射，并且在被透射通过光束选择表面之后，被引导到观察者的 瞳孔。