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    • 95. 发明授权
    • Color separation prism system for color television camera
    • 彩色分光棱镜系统用于彩色电视摄像机
    • US4171869A
    • 1979-10-23
    • US889539
    • 1978-03-23
    • Takeshi HiguchiSeiji ToyamaHiroshi Yamada
    • Takeshi HiguchiSeiji ToyamaHiroshi Yamada
    • G02B27/10G02B27/14H04N9/097G02B21/14
    • G02B27/1013G02B27/145H04N9/097
    • In a color separation prism system for a color television camera, a bias light source is located at a position substantially displaced from one or the other of the two intersections of (i) a plane including the optical axis of the taking lens of the camera and perpendicular to the plane including the optical axes of the three color light beams incident to the pick up tubes and (ii) the two parallel edges of a prism block formed by the entrance face thereof to which the light from the taking lens of the camera is incident and the upper and lower parallel faces of the prism block parallel to the plane including the optical axes of the three color light beams. The color separation prism system is particularly suitable for use in a system in which the refractive index of the glass constituting the prism blocks is as high as 1.7.
    • 在用于彩色电视摄像机的分色棱镜系统中,偏置光源位于与(i)包括照相机的拍摄镜头的光轴的平面的两个交点中的一个或多个交叉点的大体上位移的位置,以及 垂直于包括入射到拾取管的三色光束的光轴的平面,以及(ii)由相机的摄影镜头的光从入射面形成的棱镜块的两个平行边缘是 并且棱镜块的上下平行面平行于包括三色光束的光轴的平面。 分色棱镜系统特别适用于构成棱镜块的玻璃的折射率高达1.7的系统。