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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：US06215461B1
公开(公告)日：2001-04-10
申请号：US08919396
申请日：1997-08-28
IPC分类号： G09G500
CPC分类号： G02B27/017 , G02B2027/0138
摘要： The object is to provide an image viewing system that allows easy image viewing with reduced eyestrain, whether for wide-angle or enlarged viewing. The rotation of the viewer's head is detected by means of piezo-electric vibration gyroscopes 405 and 406, and the coefficient for setting the amount of change in the camera system's image shooting direction with reference to the detected direction is changed in accordance with the focal length of the camera system's zoom lens systems. Moreover, the amount of change in the image shooting direction may be changed manually by means of sensitivity setting lever 213 mounted on HMD 2.
摘要翻译： 目的是提供一种图像观看系统，无论是广角还是放大观看，都能减少眼睛疲劳的图像观看。 通过压电振动陀螺仪405和406检测观察者头部的旋转，并且根据检测到的方向改变用于设定相机系统的图像拍摄方向的变化量的系数，根据焦距 的相机系统的变焦镜头系统。 此外，可以通过安装在HMD2上的灵敏度设定杆213手动地改变图像拍摄方向的变化量。
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公开(公告)号：US07030838B1
公开(公告)日：2006-04-18
申请号：US08988537
申请日：1997-12-10
IPC分类号： G09G5/00
摘要： An image observation device which is so arranged that a user can look an image in through an ocular window thereof with the device being fitted to the user's head for example, that the image changes in linkage with movement of the user's head, and that unnecessary change of the image is prevented during the observation. The image observation device includes an eye access detector for detecting whether the user's eyes approach thereto or not, and includes, a controller by the operation of which the image changes in linkage with movement of the user's head only if the eye access detector detects that the user's eyes approach thereto, and by the operation of which the image does not change in linkage with movement of the user's head if the eye access detector does not detect that the user's eyes approach thereto.
摘要翻译： 一种图像观察装置，其被设置为使得用户可以通过其目视窗口将装置安装到用户头部，例如，图像与用户头部的移动相关联地改变，并且不必要的改变 在观察期间防止了图像。 图像观察装置包括用于检测用户的眼睛是否接近的眼睛访问检测器，并且包括控制器，只有当眼睛访问检测器检测到所述眼睛访问检测器检测到该图像时，通过与用户头部的移动相关联地改变图像的操作 用户的眼睛接近，并且如果眼睛访问检测器没有检测到用户的眼睛接近，则图像不与用户头部的移动相关联地改变的操作。
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公开(公告)号：US06549641B2
公开(公告)日：2003-04-15
申请号：US09179770
申请日：1998-10-27
IPC分类号： G06K900
CPC分类号： G06F3/012 , A63F2300/1012 , G02B27/017 , G02B2027/0187 , G02B2027/0198 , G06F3/011
摘要： A screen image observing device and method provides the sensations of virtual reality to the observer and reduces, to the extent possible, the discrepancy that is perceived by the observer between the movement of the observer's head and the displayed screen image. The device has a head tracking means, which detects the movement of the observer's head, and a screen image generating means, which generates image data based upon the result of the detection performed by the head tracking means. Image data is supplied to a display means.
摘要翻译： 屏幕图像观察装置和方法向观察者提供虚拟现实的感觉，并且在可能的范围内减少由观察者的头部的运动和所显示的屏幕图像之间的观察者感觉到的差异。 该装置具有头部跟踪装置，其检测观察者的头部的移动;以及屏幕图像生成装置，其基于头部跟踪装置执行的检测结果生成图像数据。 图像数据被提供给显示装置。
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公开(公告)号：US6115186A
公开(公告)日：2000-09-05
申请号：US315627
申请日：1999-05-20
申请人： Hideki Nagata , Kohtaro Hayashi , Ichiro Kasai , Soh Ohzawa , Akira Sato , Yasushi Kobayashi
发明人： Hideki Nagata , Kohtaro Hayashi , Ichiro Kasai , Soh Ohzawa , Akira Sato , Yasushi Kobayashi
CPC分类号： G02B27/017 , G02B27/01
摘要： A scanning-type image viewing optical system has a light source for emitting luminous flux; a main scanning means for scanning luminous flux in a first direction; a sub-scanning means for scanning luminous flux in a second direction different from the first direction; and an eyepiece lens for directing luminous flux scanned by the two scanning means to the pupil of an observer, wherein the main scanning means has a conjugate relationship with the pupil position of the observer via the eyepiece lens, and when the pupil diameter, i.e., the luminous flux diameter of the incident luminous flux at the pupil position of the observer, is designated d and the main scan diameter, i.e., the luminous flux diameter exiting the main scanning means, is designated d', the conjugate magnification .beta. calculated by d/d' satisfies the conditional equation .beta..ltoreq.0.85.
摘要翻译： 扫描型图像观察光学系统具有用于发射光通量的光源; 主扫描装置，用于沿第一方向扫描光通量; 用于沿与第一方向不同的第二方向扫描光通量的副扫描装置; 以及用于将由两个扫描装置扫描的光束引导到观察者的瞳孔的目镜，其中主扫描装置经由目镜透镜与观察者的瞳孔位置具有共轭关系，并且当瞳孔直径 在观察者的瞳孔位置处的入射光通量的光束直径被指定为d，主扫描直径（即，将主扫描装置的光束直径）指定为d'，由d计算的共轭倍率β / d'满足条件方程β
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公开(公告)号：US6097526A
公开(公告)日：2000-08-01
申请号：US316818
申请日：1999-05-21
申请人： Hideki Nagata , Kohtaro Hayashi , Ichiro Kasai , Soh Ohzawa , Akira Sato , Yasushi Kobayashi
发明人： Hideki Nagata , Kohtaro Hayashi , Ichiro Kasai , Soh Ohzawa , Akira Sato , Yasushi Kobayashi
CPC分类号： G02B27/0101 , G02B27/01 , G02B27/017 , G02B27/0172
摘要： A scanning-type image viewing optical system has a light source for emitting luminous flux; a main scanning means for scanning luminous flux in a first direction; a sub-scanning means for scanning luminous flux in a second direction different from the first direction; and an eyepiece lens for directing luminous flux scanned by the two scanning means to the pupil of an observer, wherein the main scanning means has a conjugate relationship with the pupil position of the observer via the eyepiece lens, and when the pupil diameter, i.e., the luminous flux diameter of the incident luminous flux at the pupil position of the observer, is designated d and the main scan diameter, i.e., the luminous flux diameter exiting the main scanning means, is designated d', the conjugate magnification .beta. calculated by d/d' satisfies the conditional equation 1.2.ltoreq..beta..
摘要翻译： 扫描型图像观察光学系统具有用于发射光通量的光源; 主扫描装置，用于沿第一方向扫描光通量; 用于沿与第一方向不同的第二方向扫描光通量的副扫描装置; 以及用于将由两个扫描装置扫描的光束引导到观察者的瞳孔的目镜，其中主扫描装置经由目镜透镜与观察者的瞳孔位置具有共轭关系，并且当瞳孔直径 在观察者的瞳孔位置处的入射光通量的光束直径被指定为d，主扫描直径（即，将主扫描装置的光束直径）指定为d'，由d计算的共轭倍率β / d'满足条件方程式1.2
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公开(公告)号：US06215481B1
公开(公告)日：2001-04-10
申请号：US09154032
申请日：1998-09-16
申请人： Yasushi Tanijiri , Kenji Ishibashi , Hideki Nagata
发明人： Yasushi Tanijiri , Kenji Ishibashi , Hideki Nagata
IPC分类号： G09G500
摘要： A display apparatus of the present invention includes scanning mirrors for scanning light emitted from a light source, a position sensor diode for detecting whether scanning by the scanning mirrors is normal or abnormal, a light intercepting shutter for intercepting light when the position sensor diode detects that the scanning is abnormal.
摘要翻译： 本发明的显示装置包括用于扫描从光源发出的光的扫描镜，用于检测扫描镜的扫描是正常还是异常的位置传感器二极管，当位置传感器二极管检测到 扫描异常。
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公开(公告)号：US06331879B1
公开(公告)日：2001-12-18
申请号：US08749887
申请日：1996-11-18
申请人： Yasumasa Sawai , Takashi Ohta , Nobuo Mushiake , Hideki Nagata , Soh Ohzawa
发明人： Yasumasa Sawai , Takashi Ohta , Nobuo Mushiake , Hideki Nagata , Soh Ohzawa
IPC分类号： G02F11335
CPC分类号： G02F1/13362 , G02F2001/13355 , H04N5/74 , H04N5/7441 , H04N9/3105 , H04N9/3167
摘要： A liquid crystal projector includes an illumination optical system provided with a light source, first and second lens arrays arranged in this order from the light source, a liquid crystal panel, and a polarization changing optical system arranged between the first and second lens arrays. This makes it possible to install the polarization changing optical system and the optical integrator in a smaller space.
摘要翻译： 一种液晶投影仪包括：设置有光源的照明光学系统，从光源依次排列的第一和第二透镜阵列，液晶面板和布置在第一和第二透镜阵列之间的偏振改变光学系统。 这使得可以在更小的空间中安装偏振变化光学系统和光学积分器。
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公开(公告)号：US5633759A
公开(公告)日：1997-05-27
申请号：US529294
申请日：1995-09-15
申请人： Hideki Nagata , Soh Ohzawa , Hiroyuki Matsumoto , Masakuni Tai
发明人： Hideki Nagata , Soh Ohzawa , Hiroyuki Matsumoto , Masakuni Tai
IPC分类号： G02B15/173 , G02B15/14
CPC分类号： G02B15/173
摘要： A zoom lens system of the invention is double telephoto type zoom lens system having a positive/negative/positive/negative refractive power arrangement. During zooming from the wide angle side toward the telephoto side, the first through fourth lens units move such that the distance between the first and second lens units increases and the distance between the third and fourth lens units decreases. The refractive power of the first lens unit and the refractive power of the fourth lens unit are appropriately prescribed so that an adequate back focal lens distance is preserved.
摘要翻译： 本发明的变焦透镜系统是具有正/负/正/负屈光力配置的双长焦型变焦透镜系统。 在从广角侧向望远侧变焦时，第一至第四透镜单元移动，使得第一和第二透镜单元之间的距离增加，并且第三和第四透镜单元之间的距离减小。 适当地规定第一透镜单元的屈光力和第四透镜单元的屈光力，使得保留足够的后焦距透镜距离。
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公开(公告)号：US07019715B1
公开(公告)日：2006-03-28
申请号：US09615233
申请日：2000-07-13
申请人： Ichiro Kasai , Yasushi Tanijiri , Hideki Nagata
发明人： Ichiro Kasai , Yasushi Tanijiri , Hideki Nagata
IPC分类号： G09G5/00 , G02F1/1335
CPC分类号： G02B27/0172 , G02B5/30 , G02B2027/0132 , G02B2027/0152
摘要： A head-mounted image display apparatus is provided with: an image display element; a projection optical system that projects an image displayed by the image display element, so as to be enlarged; a reflective screen onto which the image is projected by the projection optical system; and a combiner disposed between the projection optical system and the screen. The combiner transmits the image light from the projection optical system and directs it to the screen, and reflects the image light reflected at the screen and directs it to the user's pupil.
摘要翻译： 头戴式图像显示装置具有：图像显示元件; 投影光学系统，投影由图像显示元件显示的图像，以便被放大; 由投影光学系统投影图像的反射屏幕; 以及配置在投影光学系统和屏幕之间的组合器。 组合器从投影光学系统传输图像光并将其引导到屏幕，并且反射在屏幕上反射的图像光并将其引导到用户的瞳孔。
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