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    Camera tube having photocathode absorptive of shorter wavelength and filter absorptive of longer wavelength light
    1.
    发明授权
    Camera tube having photocathode absorptive of shorter wavelength and filter absorptive of longer wavelength light 失效
    相机管具有吸收较短波长的光电阴极并对较长波长的光进行过滤

    公开(公告)号：US4251748A

    公开(公告)日：1981-02-17

    申请号：US16590

    申请日：1979-03-01

    申请人： Hendricus F. J. J. van Tongeren ,  Paulus P. M. Schampers ,  Willem P. Weijland ,  Marino G. Carasso

    发明人： Hendricus F. J. J. van Tongeren ,  Paulus P. M. Schampers ,  Willem P. Weijland ,  Marino G. Carasso

    IPC分类号： H01J29/45 ,  H01J29/39 ,  H01J29/89 ,  H01J31/26 ,  H01J31/38

    CPC分类号： H01J29/89 ,  H01J29/39 ,  H01J2229/8922

    摘要： The optical cross-talk in a camera tube is reduced by the provision of a filter element which overlaps the entire target. The filter may be arranged in front of the photosensitive target and have a spectral transmission which is adapted to the spectral sensitivity of the target. The filter may also be arranged behind the target and preferably constructed so that it is also low-reflective for incoming light. In order to prevent excessive transverse conduction, such a filter may have a mosaic structure consisting of mutually insulated areas. Optical cross-talk may also be reduced by mounting the target on a support which is separately arranged in the camera tube and which has a small thickness.

    摘要翻译： 通过提供与整个目标物重叠的过滤元件来减少相机管中的光学串扰。 滤光器可以布置在光敏靶的前面，并且具有适合于目标的光谱灵敏度的光谱透射。 过滤器也可以布置在目标后面，并且优选地构造成使得其对于入射光也是低反射的。 为了防止过度的横向传导，这种过滤器可以具有由相互绝缘的区域组成的镶嵌结构。 也可以通过将目标物安装在分别布置在照相机管中并且具有小厚度的支撑件上来减少光学串扰。