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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。
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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。
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公开(公告)号：US06297898B1
公开(公告)日：2001-10-02
申请号：US09395615
申请日：1999-09-14
申请人： Yasushi Tanijiri , Hiroaki Ueda , Kenji Ishibashi , Yasushi Kobayashi , Takatoshi Ishikawa , Soh Ohzawa , Hideki Nagata
发明人： Yasushi Tanijiri , Hiroaki Ueda , Kenji Ishibashi , Yasushi Kobayashi , Takatoshi Ishikawa , Soh Ohzawa , Hideki Nagata
IPC分类号： G02B2608
CPC分类号： G02B26/105 , G02B7/008 , G02B7/1821
摘要： An optical deflection device for deflecting light by a mirror mounted on the tip of a rod-like torsion spring which oscillates at near resonance frequency. An optical deflection device which produces a large amplitude by exerting control to avoid variation in the natural oscillation frequency of the torsion spring (including mirror) regardless of temperature fluctuation.
摘要翻译： 一种光学偏转装置，用于通过安装在杆状扭转弹簧的尖端处的反射镜来偏转光，其以接近共振频率振荡。 通过进行控制来产生大振幅的光偏转装置，以避免扭簧（包括反射镜）的固有振荡频率的变化，而不管温度波动如何。
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公开(公告)号：US06922267B2
公开(公告)日：2005-07-26
申请号：US10100323
申请日：2002-03-18
CPC分类号： G02B27/0172 , G02B2027/0178
摘要： An image display apparatus has an image display device for displaying an image, an eyepiece optical system, including a holographic magnifying optical element, for magnifying and projecting the image, and a holographic filter, disposed either as part of the image display device or in the optical path between the image display device and the eyepiece optical system, for restricting the wavelength range of the image light.
摘要翻译： 图像显示装置具有用于显示图像的图像显示装置，包括用于放大和投影图像的全息放大光学元件的目镜光学系统，以及设置在图像显示装置的一部分上的全息滤光器 图像显示装置与目镜光学系统之间的光路，用于限制图像光的波长范围。
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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
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。
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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。
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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.
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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
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。
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公开(公告)号：US6014399A
公开(公告)日：2000-01-11
申请号：US215313
申请日：1998-12-18
申请人： Yasushi Tanijiri , Hiroaki Ueda , Kenji Ishibashi
发明人： Yasushi Tanijiri , Hiroaki Ueda , Kenji Ishibashi
CPC分类号： G02B7/1821 , G02B26/105 , G02B27/017 , G02B27/0176
摘要： A resonant optical device has a rod-like resonator made of a fiber-reinforced resin for resonant vibration. A reflecting mirror is supported on the leading edge of the resonator. A drive unit oscillates the resonator in a circumferential direction. The base edge of the resonator is anchored to a stationary platform. The reflecting mirror is oscillated by a torsional oscillation produced by oscillation from the drive unit so as to scan light incident on the reflecting mirror. The resonator satisfies the expression G/.rho..gtoreq.12.times.10.sup.6 Pa.multidot.kg.sup.-1 .multidot.m.sup.3, where the horizontal elastic modulus of the resonator is designated G, and the density is designated .rho.. The resonator also satisfies the expression .tau./G.gtoreq.0.01, where the torsional stress tolerance is designated .tau.. In one embodiment, the fiber-reinforced resin is a carbon fiber-reinforced resin.
摘要翻译： 共振光学装置具有由用于共振振动的纤维增强树脂制成的棒状谐振器。 反射镜支撑在谐振器的前缘上。 驱动单元使谐振器沿圆周方向振荡。 谐振器的基边缘固定在固定平台上。 反射镜由来自驱动单元的振荡产生的扭转振荡振荡，以扫描入射在反射镜上的光。 谐振器满足表达式G / r /> = 12×10 6 Paxkg-1×m 3，其中谐振器的水平弹性模量被指定为G，并且密度被指定为rho。 谐振器也满足tau / G> / = 0.01的表达式，其中扭转应力耐受性被指定为τ。 在一个实施方案中，纤维增强树脂是碳纤维增强树脂。
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公开(公告)号：US06474809B2
公开(公告)日：2002-11-05
申请号：US09941578
申请日：2001-08-30
申请人： Yasushi Tanijiri , Hiroaki Ueda , Kenji Ishibashi , Tetsuya Noda
发明人： Yasushi Tanijiri , Hiroaki Ueda , Kenji Ishibashi , Tetsuya Noda
IPC分类号： G02C300
CPC分类号： G02B27/0176 , G02B27/0172 , G02B2027/0132 , G02B2027/0178 , G02B2027/0196
摘要： An image display apparatus has a display section for displaying an image, an eyepiece optical system, and a transparent plate-shaped member for holding the eyepiece optical system. The image display apparatus is used with the eyepiece optical system placed in front of a viewer's eyes and with the plate-shaped member facing the eyes. The image display apparatus directs light from the display section through the eyepiece optical system to the eyes so that the viewer is presented with a virtual image of the image displayed on the display section and simultaneously permits light from the outside world to be transmitted through the plate-shaped member so as to be directed to the eyes so that the viewer is presented with an image of the outside world. The boundary surface between the eyepiece optical system and the plate-shaped member is so arranged as not to reflect light from the outside world incident thereon at angles of incidence greater than the Brewster angle toward the eyes.
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