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。

公开(公告)号：US20060103937A1

公开(公告)日：2006-05-18

申请号：US11320336

申请日：2005-12-28

申请人： Tetsuya Noda ,  Yasushi Tanijiri ,  Takeshi Endo ,  Hiroaki Ueda

发明人： Tetsuya Noda ,  Yasushi Tanijiri ,  Takeshi Endo ,  Hiroaki Ueda

IPC分类号： G02B5/28

CPC分类号： G02B5/28 ,  G02B5/32

摘要： A band-pass filter has a reflecting optical element having a fixed reflection angle selection region for wavelengths of a given region, and has an optical path such that reflection is performed at least once and transmission is performed at least once at the reflecting optical element.

公开(公告)号：US20060274440A1

公开(公告)日：2006-12-07

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： G02B5/10

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.

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。

公开(公告)号：USD602064S1

公开(公告)日：2009-10-13

申请号：US29297223

申请日：2007-11-07

申请人： Sei Mitsui ,  Yasushi Tanijiri ,  Hiroshi Yamaguchi

设计人： Sei Mitsui ,  Yasushi Tanijiri ,  Hiroshi Yamaguchi

公开(公告)号：US20070291355A1

公开(公告)日：2007-12-20

申请号：US11811635

申请日：2007-06-11

申请人： Yasushi Tanijiri

发明人： Yasushi Tanijiri

IPC分类号： G02B27/22

CPC分类号： G02B27/0172 ,  G02B2027/011 ,  G02B2027/0112 ,  G02B2027/0118 ,  G02B2027/0123 ,  G02B2027/0174 ,  G02B2027/0178

摘要： At least one of right and left image display apparatuses is provided with an optical axis adjustment mechanism. The optical axis adjustment mechanism changes relative positional relationship between an image displayed on a display device and an ocular optical system in a direction intersecting an optical axis to thereby adjust an angle formed by a pair of right and left optical axes. In this condition, a light source is so arranged as to be substantially conjugate with an optical pupil. The optical axis adjustment mechanism changes the positional relationship described above without changing a position of the optical pupil relative to the ocular optical system. This permits, even when the apparatus is originally designed such that light intensity is high at a designed optical pupil position, achieving the light intensity at this optical pupil position even after optical axis adjustment. Moreover, since the position of the optical pupil relative to the ocular optical system is not changed through the optical axis adjustment, image light can be guided to the optical pupil by utilizing a portion of the ocular optically system designed so as to suppress occurrence of aberration.

摘要翻译： 右图像显示装置和左图像显示装置中的至少一个设置有光轴调节机构。 光轴调整机构在与光轴交叉的方向上改变在显示装置上显示的图像与眼睛光学系统之间的相对位置关系，从而调整由一对左右光轴形成的角度。 在这种情况下，光源被布置成与光学瞳孔基本上共轭。 光轴调整机构改变上述位置关系而不改变光瞳相对于目镜系统的位置。 这允许即使在设计原始设计使得在设计的光瞳位置处的光强度高的情况下，即使在光轴调整之后也实现该光瞳位置的光强度。 此外，由于光学瞳孔相对于眼睛光学系统的位置不通过光轴调节而改变，因此可以通过利用设计的眼睛光学系统的一部分来抑制像差的发生而将图像光引导到光瞳孔 。

公开(公告)号：US20070177239A1

公开(公告)日：2007-08-02

申请号：US11657979

申请日：2007-01-25

申请人： Yasushi Tanijiri ,  Ichiro Kasai ,  Tetsuya Noda ,  Hiroshi Yamaguchi ,  Yoshie Shimizu

发明人： Yasushi Tanijiri ,  Ichiro Kasai ,  Tetsuya Noda ,  Hiroshi Yamaguchi ,  Yoshie Shimizu

IPC分类号： G03H1/00

CPC分类号： G02B27/017 ,  G02B5/32 ,  G02B27/0172 ,  G02B2027/0116 ,  G02B2027/0174 ,  G02B2027/0178 ,  G03H1/02 ,  G03H2001/0212 ,  G03H2222/20

摘要： Variation of the wavelength of the light emitted from a light source is reduced by a wavelength variation reduction mechanism. Hence, wavelength deviation of the intensity peak of the light emitted from the light source from the diffraction-efficiency peak of a hologram optical element is reduced. Thus, even when a high-brightness light source is used, the light emitted therefrom can be diffracted with the hologram optical element efficiently. Moreover, the heat generated by the light source is efficiently rejected through the surface of a land portion of a flexible printed circuit, is then, via an insulating layer of the flexible printed circuit, efficiently absorbed through the surface of a heat absorbing member, and is then, via a shield conductor, led out of a casing, so as to be thereby expelled.

摘要翻译： 从光源发射的光的波长的变化通过波长变化减小机制而减小。 因此，从光源发射的光与全息光学元件的衍射效率峰值的强度峰值的波长偏差减小。 因此，即使使用高亮度光源，也可以有效地利用全息图光学元件衍射出的光。 此外，由柔性印刷电路的接地部的表面有效地排除由光源产生的热量，经由柔性印刷电路的绝缘层被有效地吸收通过吸热部件的表面，并且 然后经由屏蔽导体从外壳引出，从而被排出。

公开(公告)号：US20060268421A1

公开(公告)日：2006-11-30

申请号：US11440649

申请日：2006-05-25

申请人： Yoshie Shimizu ,  Yasushi Tanijiri ,  Takeshi Endo ,  Tetsuya Noda

发明人： Yoshie Shimizu ,  Yasushi Tanijiri ,  Takeshi Endo ,  Tetsuya Noda

IPC分类号： G02B27/14

CPC分类号： G02B27/0172 ,  G02B5/30 ,  G02B5/32 ,  G02B27/0103 ,  G02B2027/0112 ,  G02B2027/0174 ,  G02B2027/0178 ,  G03H2001/2231

摘要： The light directed from a light source to a concave mirror and the light directed from a display device to an eyepiece optical system are intersected by each other in a layout. This allows the light source, the concave mirror, and the display device to be arranged in compactness adjacent to the eyepiece optical system without increasing the optical power of an illumination optical system. As the result, the apparatus can easily be minimized in the thickness or the overall size. A hologram optical element is provided where the relationship between the wavelength range Δλ1 at half of the diffraction efficiency of each of the three primary colors of the light in the hologram optical element and the wavelength range Δλ2 at half of the intensity of each of the three primary colors of the light emitted from the light source is defined by Δλ1

摘要翻译： 从光源引导到凹面镜的光和从显示装置指向目镜光学系统的光在布局中彼此相交。 这允许光源，凹面镜和显示装置在与目镜光学系统相邻的紧凑状态下布置，而不增加照明光学系统的光功率。 结果，该装置可以容易地在厚度或整体尺寸上最小化。 提供了一种全息光学元件，其中全息光学元件中的光的三原色中的每一个的衍射效率的一半的波长范围Deltalλ1与三个光学元件中的每一个的强度的一半处的波长范围Deltalλ2之间的关系 从光源发出的光的原色由Deltalambda1定义。 因此，从光源发射的光的R，G和B颜色的每个的期望波长的分量可以通过全息光学元件的作用被衍射，然后被引导到观察者的瞳孔。 这允许在颜色再现区域中增加图像并且提高质量，而与时分模式下的显示装置无关。

公开(公告)号：US09529323B2

公开(公告)日：2016-12-27

申请号：US13702957

申请日：2011-05-30

申请人： Yoshie Shimizu ,  Yasushi Tanijiri

发明人： Yoshie Shimizu ,  Yasushi Tanijiri

IPC分类号： G02B5/32 ,  G03H1/00 ,  G02B27/14 ,  G02B27/01

CPC分类号： G03H1/0005 ,  G02B5/32 ,  G02B27/0103 ,  G02B27/017 ,  G02B27/0172 ,  G02B27/143 ,  G02B27/145 ,  G02B2027/0116 ,  G02B2027/0123 ,  G02B2027/013 ,  G02B2027/0174 ,  G02B2027/0178

摘要： A video display device is provided with a light source, a display element, and an eyepiece optical system (14). The light source emits light which has at least one emission peak wavelength and has a wavelength width including one emission peak wavelength. The display element modulates the light emitted from the light source and displays video. The eye-piece optical system (14) comprises a volume phase reflective HOE (23) with diffracts and reflects video light from the display element and leads the light to a viewing pupil. An HOE surface (23a) is divided into a plurality of flat surfaces (31, 32, 33) disposed so as to be recessed on the viewing pupil side, and the plurality of flat surfaces (31, 32, 33) are continuous so as to have a common ridge line at a boundary between the flat surfaces adjoining to each other.

摘要翻译： 视频显示装置设置有光源，显示元件和目镜光学系统（14）。 光源发射具有至少一个发射峰值波长并且具有包括一个发射峰值波长的波长宽度的光。 显示元件调制从光源发出的光并显示视频。 眼部光学系统（14）包括具有衍射的体积相位反射HOE（23）并且反射来自显示元件的视频光并将光引导到观看瞳孔。 HOE表面（23a）被分成多个平坦表面（31,32,33），其设置成在观察瞳孔侧凹陷，并且多个平坦表面（31,32,33）是连续的，以便 在彼此相邻的平坦表面之间的边界处具有共同的脊线。

公开(公告)号：US20110181960A1

公开(公告)日：2011-07-28

申请号：US13122023

申请日：2009-09-30

申请人： Yasushi Tanijiri

发明人： Yasushi Tanijiri

IPC分类号： G02B27/01

CPC分类号： G02B27/0172 ,  G02B5/02 ,  G02B5/0221 ,  G02B5/0257 ,  G02B5/0278 ,  G02B2027/0112 ,  G02B2027/0118 ,  G02B2027/0174

摘要： Provided are an image display device and HMD, which can make an observer observe an image with reduced luminance nonuniformity and reduced color nonuniformity, while making the image bright by reducing the degree of diffusion with a constitution employing a means which diffuses incident light in one direction. In the image display device, light from a light source is diffused in one direction with the diffusing means and is guided to a display element, and image light emitted from the display element is guided to an optical pupil through a lens. The image display device with the constitution satisfies the expression Hw/f≦tan 1′Kw/(f+δ), wherein Hw is the aperture width of pixels of the display element in the diffusing direction of the diffusing means, Kw is the maximum pitch of recesses and protrusions in the diffusing direction of the diffusing means, f is the focal length of the lens, and δ is the distance between the display surface of the display element and the diffusing surface of the diffusing means.

摘要翻译： 提供了一种图像显示装置和HMD，其可以使观察者观察具有降低的亮度不均匀性和降低的颜色不均匀性的图像，同时通过使用在一个方向上扩散入射光的装置的结构来降低扩散程度来使图像变亮 。 在图像显示装置中，来自光源的光在漫射装置的一个方向上扩散并被引导到显示元件，并且从显示元件发射的图像光通过透镜被引导到光学瞳孔。 具有该结构的图像显示装置满足表达式Hw / f＆nlE; tan 1'Kw /（f +δ），其中Hw是扩散装置的扩散方向上的显示元件的像素的孔径宽度，Kw是最大值 扩散装置的扩散方向上的凹部和突起的间距，f是透镜的焦距，δ是显示元件的显示表面与扩散装置的漫射面之间的距离。