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公开(公告)号：US4766603A
公开(公告)日：1988-08-23
申请号：US928389
申请日：1986-11-10
CPC分类号： G21K1/04 , A61B6/022 , A61B6/06 , A61B6/4028 , G21K1/10
摘要： An aperture device defines X-ray beams emitted from X-ray focal points L and R spaced apart from each other along the first direction. This defining operation is performed along the first direction and a second direction crossing the first position, thereby shaping a rectangular X-ray radiation area. Blades defining the two edges of the X-ray beam along the first direction and blades defining two edges of the X-ray beam along the second direction are supported by engaging portions into which screw portions of screw rods are screwed and engaging portions slidably fitted around round portions of the screw rods, respectively. When the screw rods are rotated by activation of corresponding stepping motors, the corresponding engaging portions are moved parallel to the screw rods. The respective blades can be variably moved along the first or second direction, thereby forming an X-ray radiation area having any shape in any position.
摘要翻译： 孔径装置限定从沿着第一方向彼此间隔开的X射线焦点L和R发射的X射线束。 该定义操作沿着第一方向和与第一位置相交的第二方向进行，由此成形矩形X射线辐射区域。 沿着第一方向限定X射线束的两个边缘的叶片和沿着第二方向限定X射线束的两个边缘的叶片由接合部分支撑，螺钉的螺纹部分被拧入的接合部分和可滑动地装配在其中的接合部分 分别是螺杆的圆形部分。 当通过相应的步进电机的激活使螺杆旋转时，相应的接合部分平行于螺杆移动。 各个叶片可以沿着第一或第二方向可变地移动，从而形成在任何位置具有任何形状的X射线辐射区域。
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公开(公告)号：US4544247A
公开(公告)日：1985-10-01
申请号：US563987
申请日：1983-12-21
申请人： Yoshio Ohno , Katsuhiko Koyama , Kohsaku Nishio
发明人： Yoshio Ohno , Katsuhiko Koyama , Kohsaku Nishio
摘要： A stereoscopic projecting apparatus has a polyhedral prism and two types of polarizing filters which are arranged at the incident (or emerging) planes of the prism and which have orthogonal deflecting directions. Left and right-eye pictures are alternately formed on the consecutive frames of a cinefilm. The cinefilm is driven in such a way as to cross the projection region of light emitted from a lamp. An optical image transmitted from the cinefilm is projected onto a screen by the polyhedral prism, through a relay lens, a projection lens or the like. The left and right-eye images are deflected in directions 90.degree. apart from each other, by the polarizing filters at the respective incident or emerging planes of the prism. A viewer can stereoscopically observe the image superimposed on the screen, using polarized viewing glasses having polarized lenses deflected in the deflecting directions of the images.
摘要翻译： 立体投影装置具有多棱镜和两种类型的偏振滤光器，它们布置在棱镜的入射（或出现）平面处并具有正交的偏转方向。 左眼图像和右眼图像交替地形成在电影胶片的连续帧上。 电影胶片以这样的方式被驱动，以便穿过从灯发出的光的投影区域。 从电影胶片发送的光学图像通过多面体棱镜通过中继透镜，投影透镜等投射到屏幕上。 通过棱镜的相应入射面或出射平面处的偏振滤光器，左眼和右眼图像在彼此相隔90°的方向上偏转。 观看者可以立体观察叠加在屏幕上的图像，使用具有在图像的偏转方向偏转的偏光镜片的偏振观察眼镜。
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公开(公告)号：US4413352A
公开(公告)日：1983-11-01
申请号：US316674
申请日：1981-10-30
申请人： Kohsaku Nishio
发明人： Kohsaku Nishio
CPC分类号： G03B42/02 , H01J35/045 , H01J35/24 , H05G1/58 , H05G1/60 , H01J2235/068
摘要： An X-ray stereoscopic cinematography apparatus including an X-ray tube having at least a pair of focal spots from which X-rays are irradiated independently at an object to produce an X-ray image of an object under study, means for converting the X-ray image to an optical image, an optical system device for distributing the optical image to first and second cinecameras. The optical system device includes a first half-mirror having a reflection rate of approximately fifty percent and a second half-mirror having a comparatively low transmission rate, the half-mirrors being separately positionable in a first position to reflect the optical image or a second position out of the light path of the optical image to distribute the optical image to the first and second cinecameras. A television camera is provided to accept the optical image delivered through the optical system device and to convert it to an electric signal. A mode setter enables the selection of one of a stereoscopic cinematography mode, a single cinematography mode, and a fluoroscopy mode.
摘要翻译： 一种X射线立体摄影装置，包括具有至少一对焦点的X射线管，X射线从该X射线被独立地照射在被摄体上，以产生被研究对象的X射线图像，用于将X 将图像转换成光学图像，用于将光学图像分配到第一和第二电影相机的光学系统装置。 光学系统装置包括具有大约百分之五十的反射率的第一半反射镜和具有相对较低传输速率的第二半反射镜，半反射镜可分开地定位在第一位置以反射光学图像或第二半反射镜 位于光学图像的光路之外，以将光学图像分布到第一和第二电影院。 提供电视摄像机以接受通过光学系统装置传送的光学图像并将其转换成电信号。 模式设定器能够选择立体摄影模式，单个摄影模式和透视模式之一。
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公开(公告)号：US4383328A
公开(公告)日：1983-05-10
申请号：US322287
申请日：1981-11-17
申请人： Tetsurou Kurihara , Kohsaku Nishio
发明人： Tetsurou Kurihara , Kohsaku Nishio
CPC分类号： G03B42/02 , G03B42/021 , H05G1/60
摘要： An X-ray stereoscopic cinematography apparatus including an X-ray tube having at least a pair of focal spots from which X-rays are irradiated independently at an object under study to produce an X-ray image thereof, an image intensifier for converting the X-ray image to a corresponding optical image, and an optical system device for selectively distributing the optical image to first and second cinecameras. The optical system device includes a first half-mirror having a reflection rate of approximately fifty percent, a second half-mirror having a comparatively low transmission rate and an entire reflection mirror, the half-mirrors and the entire reflection mirror being separately positionable in a first position to reflect the optical image or a second position out of the light path of the optical image to distribute the optical image to the first and second cinecameras. A reflector located in the optical field of the image intensifier reflects the image to a television camera provided to accept the optical image delivered through the optical system device and to convert it to an electric signal. A mode setter enables the selection of one of a stereoscopic cinematography mode, a single cinematography mode, and a fluoroscopy mode.
摘要翻译： 一种X射线立体摄影装置，包括具有至少一对焦点的X射线管，X射线管在被研究对象处独立地照射X射线以产生其X射线图像;图像增强器，用于将X 将图像转换成相应的光学图像，以及用于选择性地将光学图像分配到第一和第二电影相机的光学系统装置。 光学系统装置包括具有大约百分之五十的反射率的第一半反射镜，具有相对较低传输速率的第二半反射镜和整个反射镜，半反射镜和整个反射镜分别可定位在 第一位置以反射光学图像的光学图像或光学图像的光路中的第二位置，以将光学图像分布到第一和第二电影院。 位于图像增强器的光场中的反射器将图像反射到提供用于接收通过光学系统装置传送的光学图像并将其转换为电信号的电视摄像机。 模式设定器能够选择立体摄影模式，单个摄影模式和透视模式之一。
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